Certificate of Sponsorship Errors: How to Correct a CoS

Certificate of Sponsorship Errors: At a Glance

A Certificate of Sponsorship (CoS) error can affect more than the accuracy of the sponsorship record. Depending on the nature of the mistake and the stage reached in the worker’s immigration process, an error can delay recruitment, affect a worker’s application and create questions about the employer’s sponsor licence controls.

The correct response depends on understanding what has gone wrong, whether the information can be corrected within the sponsorship system and whether the worker and role remain eligible when the correct facts are applied.

Some errors can be addressed through a sponsor note added through the Sponsor Management System (SMS). Others require the original Certificate to be withdrawn and replaced, while some situations require consideration of wider immigration or sponsor compliance issues.

Employers should therefore approach CoS errors as a sponsorship decision issue rather than a simple data correction exercise. The priority is to establish the correct facts, preserve an accurate record and choose the appropriate corrective process.

This guide explains how employers should identify, assess and correct Certificate of Sponsorship errors, including sponsor notes, withdrawal and replacement, application-stage issues, common error types, sponsor licence implications and preventative controls.

 

Section A: What This Article Is About

Certificate of Sponsorship errors arise where information recorded on the CoS does not accurately reflect the worker, role, employment arrangements or sponsorship basis.

The significance of an error depends on what information is affected and the point reached in the sponsorship process. A minor administrative mistake may require a straightforward correction, while an error affecting the basis of sponsorship may require a more detailed review and a different response.

Employers should first establish the difference between an incorrect Certificate and a later change in circumstances. Information that was wrong when the CoS was assigned needs to be corrected as an error. Information that was accurate at assignment but later changed may instead engage separate sponsor reporting or immigration requirements.

The same distinction can arise across areas including:

• salary and working hours;
• job duties and occupation classification;
• employment dates;
• work location;
• personal information; and
• the sponsorship route or category used.

Correcting a CoS also requires employers to look beyond the sponsorship record itself. An amendment may correct the information held in the SMS, but the employer still needs to confirm that the worker and role satisfy the relevant immigration requirements when the accurate information is applied.

This guide provides a structured approach to dealing with CoS errors, covering how employers should assess the issue, select the appropriate correction process, manage potential immigration consequences and strengthen their sponsorship controls to reduce future errors.

 

 

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Section B: Certificate of Sponsorship Errors: What Should Employers Do?

If an employer discovers an error on a Certificate of Sponsorship, the first step is to establish the nature of the error, the correct information and the stage reached in the sponsorship and immigration process before taking corrective action.

The appropriate response will usually fall into one of four broad categories:

Situation	Correct starting position
Assigned CoS with a permitted amendment or minor error	A sponsor note may be used to amend, update, clarify or correct the information where the Home Office guidance permits this.
Assigned CoS with a significant error and no immigration application yet submitted	The sponsor should normally withdraw the incorrect CoS and assign a new one.
Immigration application submitted but not yet decided	The CoS may still display as Assigned. The sponsor should assess the error, the application and the available corrective mechanism carefully before taking further action.
Immigration application already decided	The CoS will generally show as Used. The sponsor should consider the immigration outcome, any current reporting obligations and whether the issue concerns an original error or a later change in circumstances.

 

1. The employer should establish the facts first

Before deciding how to correct the CoS, the sponsor should check the Certificate against the underlying documents and information used when sponsorship was approved.

This should include checking, where applicable:

• the worker’s name, nationality and date of birth;
• passport or travel document information;
• the immigration route and relevant category;
• the occupation code;
• the job title and job description;
• the salary stated on the CoS;
• the worker’s weekly working hours;
• the employment start and end dates;
• the work location;
• any relevant allowances or other remuneration information;
• any route-specific information recorded on the CoS;
• the current CoS status in the Sponsor Management System;
• whether the worker has already submitted their immigration application; and
• whether UKVI has made a decision.

The sponsor should also determine whether the CoS contains one isolated error or several inaccuracies. Multiple errors can materially change the appropriate response, particularly where they concern personal information or indicate that the Certificate was assigned without adequate checks.

 

2. Do not assume Assigned means the worker has not applied

One of the most important technical points is that a CoS can continue to show as Assigned after the worker has submitted their immigration application.

It will generally remain in Assigned status while the application is awaiting a decision and will normally change to Used once UKVI grants or refuses the application.

Employers should therefore make two separate checks:

1. What status does the CoS show in the SMS?
2. Has the worker already submitted an immigration application using that CoS?

This distinction matters because the sponsor may technically still see an Assigned CoS even though it has already been relied on in an application. The employer should not therefore assume that withdrawal and replacement remain appropriate merely because the SMS still shows Assigned.

 

3. Do not correct the wrong problem

Employers should also establish whether they are dealing with an original CoS error at all.

There is an important difference between:

An error when the CoS was assigned
The information recorded on the Certificate was incorrect at the point of assignment.

and:

A subsequent change in circumstances
The information was correct when the CoS was assigned, but the worker’s role, salary, working hours, work location, employment dates or other circumstances later changed.

The first is principally a question of correcting inaccurate sponsorship information.

The second may instead involve sponsor reporting duties and, depending on the nature of the change, wider implications for the worker’s immigration permission.

For example, entering the wrong salary because of a data-entry mistake is different from correctly entering the worker’s salary and the employer subsequently reducing that salary.

Similarly, entering an incorrect work location when assigning the CoS is different from the sponsored worker later moving permanently to another work location.

Identifying which situation applies is fundamental to determining the correct SMS process and the wider immigration implications.

 

4. Some information can expressly be amended by sponsor note

Home Office sponsor guidance expressly permits sponsors, while the CoS remains in Assigned status, to use a sponsor note in specified circumstances to:

• amend a start date or end date;
• amend or update salary details;
• amend or update working hours;
• correct minor errors; and
• provide additional information or clarification.

This means that employers should distinguish between two separate questions:

1. Can the information be amended or clarified using a sponsor note?
2. Does the corrected information still satisfy the substantive immigration requirements?

For example, the sponsor-note mechanism may be available to correct a salary figure, but the employer must still check whether the worker satisfies the applicable salary requirements using the corrected figure.

The administrative ability to amend information does not resolve an underlying eligibility problem.

 

5. Significant errors require a different response

Some mistakes are treated by the Home Office as significant errors rather than routine corrections.

Examples include:

• using the wrong occupation code;
• using the wrong immigration route or subcategory; and
• entering incorrect information in more than one of the worker’s nationality, date of birth and surname.

Where such an error is identified before the CoS has been used to support an immigration application, the sponsor should normally withdraw the incorrect CoS and assign a replacement containing the correct information.

The employer should not attempt to preserve the existing Certificate merely because adding a sponsor note would be administratively easier.

 

6. Act before the error progresses

Where possible, employers should deal with CoS errors as soon as they are identified.

A mistake discovered while the CoS remains Assigned and before the worker has submitted their immigration application will generally give the sponsor more scope to resolve the issue cleanly.

Once the worker has submitted an application, the employer also has to consider the information already relied on by the Home Office.

Once a decision has been made, the CoS will generally show as Used and the sponsor will need to consider the immigration outcome and any relevant reporting obligations.

For this reason, sponsors should have a process for checking Certificates of Sponsorship before assignment and for carrying out a final review immediately after assignment and before the CoS reference is provided to the worker.

The central question is not simply whether information on the CoS can technically be changed.

The employer needs to determine whether the mistake can be corrected through a sponsor note, whether the CoS needs to be withdrawn and replaced, whether the worker’s application has already relied on the incorrect information and whether the corrected facts continue to support lawful sponsorship.

 

 

 

 

 

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Section C: Can You Correct a CoS After It Has Been Assigned?

Yes. Certain information on a Certificate of Sponsorship can be corrected, amended or clarified after the CoS has been assigned. However, an assigned CoS is not simply an editable form that the sponsor can reopen and rewrite.

The correct procedure depends on what needs to be changed, whether the error is minor or significant, whether the CoS still shows as Assigned and whether the worker has already submitted an immigration application using it.

In broad terms, an employer dealing with an assigned CoS has two principal corrective mechanisms:

1. Add a sponsor note where the Home Office guidance permits the information to be corrected, amended, updated or clarified in this way.
2. Withdraw the CoS and assign a new Certificate where the error is significant and the original CoS has not already been used to support an immigration application.

Which option is appropriate should be determined by the nature of the error and the stage reached in the worker’s immigration process.

 

1. When can a sponsor note be used?

While a CoS remains in Assigned status, Home Office sponsor guidance allows a sponsor to add a sponsor note in specified circumstances.

This can include using a sponsor note to:

• correct a minor error;
• provide additional information or clarification;
• amend a start date or end date;
• amend or update salary details; and
• amend or update working hours.

A sponsor note therefore has a wider function than simply correcting typographical mistakes.

However, the fact that information can be amended through a sponsor note does not mean the employer can disregard the immigration consequences of the corrected information.

For example, if the salary recorded on the CoS is incorrect, a sponsor note may be available to amend the salary details while the CoS remains Assigned. The sponsor should nevertheless recalculate the relevant salary requirements using the correct salary and working hours to establish that the worker remains eligible under the applicable immigration route.

Likewise, changing an employment date through a sponsor note does not remove the need to consider any immigration or sponsorship requirements that depend on that date.

 

2. When is a sponsor note not enough?

A sponsor note should not be used as a workaround for an error that the Home Office treats as significant.

Home Office sponsor guidance identifies examples of significant errors including:

• the wrong occupation code;
• the wrong immigration route or subcategory; and
• incorrect information in more than one of the worker’s nationality, date of birth and surname.

Where a significant error is identified before the Certificate has been used to support an immigration application, the sponsor should normally withdraw the incorrect CoS and assign a new one containing the correct information.

The replacement CoS will have its own reference number. The employer should ensure that the worker is given the correct reference and understands that the withdrawn Certificate must not be used.

 

3. Assigned does not necessarily mean unused

Sponsors need to be particularly careful with the meaning of Assigned status.

A CoS will generally continue to display as Assigned while the worker’s immigration application is awaiting a decision. It does not automatically change to Used at the moment the worker submits their application.

This means that the following situation can arise:

1. the sponsor assigns the CoS;
2. the worker submits an immigration application using the CoS;
3. the CoS continues to display as Assigned while UKVI considers the application; and
4. the sponsor subsequently discovers an error.

The employer should not assume at stage 4 that the CoS can simply be withdrawn and replaced because the SMS still displays it as Assigned.

The sponsor needs to establish whether the worker has already used the Certificate to support an immigration application.

This is why the employer should always ask separately:

• What status does the CoS currently show in the SMS?
• Has the worker submitted their immigration application?
• Has UKVI made a decision on that application?

These are related questions, but they are not the same question.

 

4. What happens once the application has been decided?

Once UKVI has made a decision to grant or refuse the worker’s application, the CoS will generally show as Used.

At that stage, the employer is no longer dealing with a straightforward unused assigned Certificate that can simply be replaced before the worker applies.

The sponsor should instead establish:

• whether the application was granted or refused;
• whether the incorrect information was material to the immigration decision;
• whether the worker’s actual employment arrangements comply with the permission granted;
• whether a report needs to be made through the SMS;
• whether the issue represents an original CoS error or a subsequent change in circumstances; and
• whether further immigration action may be required.

The appropriate response will depend on the particular error and its potential effect on the worker’s immigration position.

 

5. Check the entire CoS before making the correction

When an employer identifies one mistake, it should not immediately add a sponsor note or withdraw the Certificate without checking the rest of the CoS.

The discovery of one error should trigger a review of the entire sponsorship record.

At a minimum, the employer should recheck:

• the worker’s identity details;
• nationality and date of birth;
• the sponsorship route;
• the occupation code;
• job title and job description;
• salary;
• weekly working hours;
• employment dates;
• work location; and
• any other route-specific information entered when the Certificate was assigned.

This is particularly important because the presence of several errors can change how the Certificate should be dealt with.

For example, a single minor mistake in a worker’s personal information may potentially be corrected using a sponsor note. Incorrect information in more than one of the worker’s nationality, date of birth and surname is treated differently under the sponsor guidance and will normally require the sponsor to withdraw the CoS and assign a new one.

 

6. Correct the CoS before the worker applies where possible

The safest operational approach is to identify and correct Certificate of Sponsorship errors before the worker submits their immigration application.

This allows the sponsor to determine the appropriate correction while the immigration application has not yet relied on the inaccurate information.

Employers should therefore consider introducing a final control between assignment and application. For example, the sponsor can provide the assigned CoS details to the relevant internal reviewer and worker with instructions that the immigration application should not be submitted until the final CoS check has been completed.

This is particularly valuable where the Certificate contains information that directly affects immigration eligibility, such as the occupation code, salary, working hours or sponsorship route.

If an error is discovered after assignment, employers should therefore avoid making an immediate SMS amendment in isolation. They should first identify the error, establish the correct information, confirm the status of the worker’s immigration application and determine whether the appropriate response is a sponsor note, withdrawal and replacement, or another form of sponsor reporting or immigration action.

 

 

 

 

 

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Section D: Minor Errors vs Significant Errors on a Certificate of Sponsorship

Not every mistake on a Certificate of Sponsorship requires the sponsor to withdraw the Certificate and start again. Home Office sponsor guidance distinguishes between errors that can be dealt with by adding a sponsor note and more significant errors that will normally require the existing CoS to be withdrawn and a new Certificate assigned.

The distinction is important because using the wrong correction method can create further inconsistencies in the sponsorship record.

Employers should therefore avoid assuming that every typographical error is insignificant or, conversely, that every incorrect field requires a replacement CoS.

The correct response depends on what information is wrong, the extent of the error, whether the guidance expressly permits the information to be amended by sponsor note and the stage reached in the worker’s immigration application.

 

1. What is a minor CoS error?

A minor error is generally an error that can appropriately be corrected or clarified without changing the fundamental basis on which the worker is being sponsored.

Home Office sponsor guidance allows sponsors to use a sponsor note to correct minor errors on a CoS while it remains in Assigned status.

An example given in the guidance is a mistyped worker name or date of birth.

Other situations may involve the sponsor providing additional information or clarification through a sponsor note where the original information requires explanation rather than replacement of the entire Certificate.

The employer should nevertheless consider the particular facts rather than relying solely on the fact that an error appears small.

For example, a single typing mistake in a date of birth may be minor. Multiple incorrect identity fields can fall within the Home Office’s significant-error rules and require a different response.

 

2. What information can be amended using a sponsor note?

The sponsor-note mechanism is not restricted to minor typographical errors.

While the CoS remains in Assigned status, Home Office sponsor guidance expressly permits a sponsor note to be used in specified circumstances to:

• amend a start date;
• amend an end date;
• amend or update salary details;
• amend or update working hours;
• correct minor errors; and
• provide additional information or clarification.

This distinction is important when assessing errors involving salary, working hours or employment dates.

The question is not simply whether the incorrect information is a “minor error”. The Home Office guidance separately allows certain information to be amended or updated using a sponsor note.

However, the availability of a sponsor note does not determine whether the worker remains eligible for sponsorship.

For example, if a salary of £45,000 was entered when the correct salary is £40,000, the sponsor may be able to amend the salary information using a sponsor note while the CoS remains Assigned. The employer must separately assess whether £40,000 satisfies the salary requirements applicable to that worker and role.

The same principle applies to working hours. Changing the number of hours recorded on the CoS may affect calculations used to determine whether applicable salary requirements are met.

 

3. What is a significant CoS error?

A significant error is one that the Home Office does not consider suitable for correction merely by adding a sponsor note to the existing Certificate.

Home Office sponsor guidance gives specific examples of significant errors, including:

• the wrong occupation code;
• the wrong immigration route or subcategory; and
• incorrect information in more than one of the worker’s nationality, date of birth and surname.

Where a significant error is identified before the CoS has been used to support an immigration application, the sponsor should normally withdraw the incorrect Certificate and assign a new CoS containing the correct information.

A sponsor note should not be used simply to avoid the administrative or financial consequences of assigning a replacement Certificate where the guidance requires a new CoS.

 

4. Wrong occupation code

Using the wrong occupation code is specifically identified as a significant error.

This is because the occupation code is not simply an administrative classification. It can affect important aspects of the worker’s immigration eligibility, including whether the role is eligible for sponsorship and the salary requirements that apply.

If the wrong occupation code has been used and the worker has not yet submitted an immigration application using the CoS, the sponsor should normally withdraw the incorrect Certificate and assign a new one using the appropriate occupation code.

The employer should first review the genuine duties of the role to establish which occupation code properly applies. It should not simply select a different code because that code produces a more favourable immigration outcome.

 

5. Wrong immigration route or subcategory

Assigning the CoS under the wrong immigration route or subcategory is also identified by the Home Office as a significant error.

This can affect the legal basis on which the worker is being sponsored and the immigration requirements that apply to the application.

Where the mistake is identified before the Certificate has been used to support an application, the employer should normally withdraw the incorrect CoS and assign a replacement under the correct route or category.

Before assigning the replacement, the sponsor should reassess the worker and role against the requirements of the correct route rather than assuming that eligibility under one route automatically establishes eligibility under another.

 

6. Multiple errors in personal information

Personal-detail errors require particular care.

A single minor error, such as a mistyped name or date of birth, may potentially be corrected using a sponsor note while the Certificate remains Assigned.

However, the Home Office guidance treats incorrect information in more than one of the worker’s nationality, date of birth and surname as a significant error.

In that situation, the sponsor will normally need to withdraw the incorrect CoS and assign a new Certificate, provided the original has not already been used to support an immigration application.

The employer should also investigate why several identity fields were incorrect. Multiple errors can indicate that information was copied from the wrong record, that the wrong worker’s details were used or that the Certificate was assigned without adequate verification.

 

7. Do not confuse a permitted amendment with an eligibility decision

A useful way to approach CoS errors is to separate the SMS correction mechanism from the immigration consequences of the corrected information.

There are two different questions:

1. How can the inaccurate information be corrected?
2. Does the worker remain eligible when the correct information is applied?

The answer to the first question may be that the sponsor can add a sponsor note.

The answer to the second question may still require a detailed reassessment of the worker’s eligibility.

This is particularly important for errors involving:

• salary;
• working hours;
• employment dates;
• occupation classification;
• the nature of the sponsored role; and
• the immigration route.

An employer should therefore never assume that successfully correcting the SMS record means the underlying immigration issue has also been resolved.

 

8. Several apparently minor errors can change the risk assessment

The employer should consider the CoS as a whole rather than assessing each error entirely in isolation.

A Certificate containing several inaccuracies may require a different approach from one containing a single obvious typing mistake.

Multiple discrepancies can also indicate a wider problem with the employer’s sponsorship procedures, particularly if similar errors appear across several sponsored workers.

Where one error is identified, the sponsor should therefore conduct a complete review of the Certificate before deciding how to correct it.

This should include checking the worker’s identity, route, occupation code, role, salary, working hours, dates and other material sponsorship information against the underlying evidence.

 

9. The worker’s application status remains critical

The minor-versus-significant distinction does not remove the need to establish whether the worker has already submitted their immigration application.

A CoS can continue to display as Assigned while an application is pending. Employers should therefore not assume that a Certificate is unused merely because the SMS status remains Assigned.

Where a significant error is identified before the worker has applied, withdrawal and replacement can generally be considered in accordance with the sponsor guidance.

Where the worker has already submitted an application, the employer needs to consider the effect of the incorrect information on that application before taking action.

Where UKVI has already made a decision, the CoS will generally show as Used and the employer will need to consider the immigration outcome, any relevant reporting duties and whether further immigration action is required.

The practical test is therefore not simply:

“Is this a minor or significant error?”

It is:

“What is wrong, how does the Home Office guidance permit it to be corrected, has the worker already relied on the CoS, and do the correct facts still satisfy the immigration requirements?”

 

 

 

 

 

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Section E: Certificate of Sponsorship Error Correction Matrix

The correct response to a Certificate of Sponsorship error depends on the information affected, the nature of the mistake and the stage reached in the worker’s immigration process.

The following matrix provides an employer-level starting point for assessing common CoS errors. It should not be used in isolation. Sponsors should also consider whether the corrected information affects the worker’s eligibility and whether the worker has already submitted an immigration application.

CoS Error	Sponsor Note?	Withdraw & Replace?	Key Employer Check
Minor spelling or typing error in worker’s name	Potentially yes	Normally not for an isolated minor error	Check the worker’s passport and immigration application details
Incorrect date of birth	Potentially yes for an isolated minor error	May be required where combined with other specified identity errors	Verify against the worker’s passport
Incorrect nationality	Requires assessment in context	Normally required where more than one of nationality, date of birth and surname is incorrect	Check all identity information, not just nationality
Wrong occupation code	No — treated as a significant error	Normally yes, if the CoS has not been used to support an application	Reassess the genuine role, duties, eligibility and applicable salary requirements
Wrong immigration route or subcategory	No — treated as a significant error	Normally yes, if the CoS has not been used to support an application	Reassess eligibility under the correct route before assigning the replacement
Incorrect salary	Yes, salary details can be amended or updated by sponsor note while the CoS remains Assigned	Not automatically	Recalculate eligibility using the correct salary and working hours
Incorrect working hours	Yes, working hours can be amended or updated by sponsor note while the CoS remains Assigned	Not automatically	Check whether the corrected hours affect the applicable salary calculation or eligibility
Incorrect employment start date	Yes, the start date can be amended by sponsor note while the CoS remains Assigned	Not automatically	Establish whether this is an original error or a subsequent change and consider any relevant timing requirements
Incorrect employment end date	Yes, the end date can be amended by sponsor note while the CoS remains Assigned	Not automatically	Check the intended period of sponsorship and any resulting immigration implications
Incorrect job title	Potentially, depending on the nature of the error	May be required if the error reveals a more fundamental problem with the sponsored role	Check the genuine duties, job description and occupation code
Incorrect or incomplete job description	Potentially, where clarification or additional information is appropriate	May be required if the underlying occupation code or basis of sponsorship is wrong	Ensure the description accurately reflects the job the worker will actually perform
Incorrect work location	Depends on whether this was an original error or a later change	Not automatically	Establish the chronology and consider the relevant sponsor reporting requirements
More than one of nationality, date of birth and surname incorrect	No — treated as a significant error	Normally yes, if the CoS has not been used to support an application	Verify that the Certificate was assigned to the correct worker and investigate how multiple identity errors occurred

 

1. Identity errors

Errors involving the worker’s identity should be checked directly against the worker’s passport or other relevant travel document rather than against information copied from another internal system.

A single minor error, such as a mistyped name or date of birth, may be capable of correction using a sponsor note while the CoS remains Assigned.

The position changes where there are multiple inaccuracies. Home Office sponsor guidance identifies incorrect information in more than one of the worker’s nationality, date of birth and surname as a significant error.

Where this occurs and the CoS has not already been used to support an immigration application, the sponsor will normally need to withdraw the Certificate and assign a replacement.

Multiple identity errors should also trigger an internal investigation. The employer should establish whether the wrong source document was used, whether information was copied from another worker or whether the Certificate was assigned without appropriate verification.

 

2. Occupation code errors

An incorrect occupation code is one of the clearest examples of an error that should not simply be corrected through a sponsor note.

The Home Office treats the wrong occupation code as a significant error.

This is important because the occupation code can determine or affect:

• whether the role is eligible for sponsorship;
• the applicable salary requirements;
• whether particular concessions or restrictions apply; and
• the basis on which UKVI assesses the sponsored role.

The employer should identify the correct occupation code by reference to the worker’s genuine job duties and responsibilities. The job title alone should not determine the classification.

Where the wrong occupation code has been used and the worker has not yet used the CoS to support an immigration application, the normal corrective approach is to withdraw the incorrect Certificate and assign a new one.

 

3. Route or subcategory errors

The wrong immigration route or subcategory is also expressly treated as a significant CoS error.

Employers should not attempt to use a sponsor note to transform a Certificate assigned under the wrong route into a Certificate for the correct route.

Where the Certificate remains capable of withdrawal because it has not been used to support an application, the sponsor should normally withdraw it and assign a replacement under the correct route or category.

Before doing so, the employer should reassess the worker and role against the requirements of the correct route. Eligibility under the route originally selected does not necessarily establish eligibility under the route that should have been used.

 

4. Salary errors

An incorrect salary requires two separate assessments.

First, the sponsor needs to determine how the incorrect information should be corrected. Home Office guidance expressly permits salary details to be amended or updated by adding a sponsor note while the CoS remains Assigned.

Second, the sponsor must establish whether the worker remains eligible when the correct salary is applied.

This can require the employer to check:

• the actual guaranteed gross salary;
• the worker’s weekly working hours;
• the relevant occupation code;
• the applicable salary threshold;
• the relevant going-rate requirement, where applicable;
• whether any permitted salary option or discount is being relied on; and
• whether the employment contract and CoS are consistent.

A sponsor note may correct the sponsorship record. It does not cure a situation where the correct salary fails to satisfy the applicable immigration requirements.

 

5. Working-hours errors

Working hours can also be amended or updated by sponsor note while the CoS remains Assigned.

However, incorrect hours should not be treated as an inconsequential administrative issue.

Working hours can affect the assessment of salary and the comparison between the remuneration recorded on the CoS and the actual terms of employment.

The employer should therefore check the correct salary and hours together and ensure that the Certificate, employment contract, recruitment records and intended working arrangements are consistent.

 

6. Start and end date errors

Home Office guidance allows sponsors to amend a start date or end date by adding a sponsor note while the CoS remains Assigned.

Employers should nevertheless establish whether the date is genuinely incorrect or whether the date was originally correct and circumstances have subsequently changed.

For example:

• entering 1 October when the agreed start date was always 1 November is an original CoS error;
• entering the correct agreed start date of 1 October and subsequently postponing the worker’s start until 1 November is a change in circumstances.

The distinction can affect the sponsor’s wider reporting obligations and should be recorded accurately.

 

7. Job title and job description errors

Errors in the job title or job description require assessment against the genuine role.

A simple wording error may potentially be capable of clarification through a sponsor note. A materially inaccurate job description may indicate a more serious issue, particularly if it calls the occupation code into question.

The employer should compare:

1. the duties the worker will actually perform;
2. the employment contract or offer documentation;
3. the job description recorded on the CoS; and
4. the occupation code selected for sponsorship.

The objective is not to rewrite the job description so that it appears to fit the occupation code already selected. The occupation code should reflect the genuine job.

 

8. Work location errors

An incorrect work location should be assessed by establishing the chronology.

If the wrong location was entered when the CoS was originally assigned, the employer is dealing with an inaccurate sponsorship record.

If the location was correct at assignment but the worker subsequently moves to another work location, the issue is instead a subsequent change and should be considered under the relevant sponsor reporting requirements.

This distinction is particularly important where employers operate from multiple sites, use hybrid working arrangements or relocate sponsored workers after employment begins.

 

9. The matrix is a starting point, not the final decision

The correction matrix should be used as a diagnostic tool rather than as a substitute for reviewing the individual case.

For every CoS error, the employer should ultimately answer six questions:

1. What information is wrong?
2. What is the correct information?
3. Does the Home Office guidance permit that information to be corrected or amended by sponsor note?
4. Is the error significant enough to require withdrawal and replacement?
5. Has the worker already submitted an immigration application or received a decision?
6. Does the worker remain eligible when the correct information is applied?

Where these questions are answered before action is taken in the SMS, employers are less likely to compound the original mistake by using the wrong corrective process.

 

 

 

 

 

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Section F: How to Use a Sponsor Note to Correct a Certificate of Sponsorship

A sponsor note allows a licensed sponsor to add information to an assigned Certificate of Sponsorship through the Sponsor Management System. It is an important mechanism for correcting, amending or clarifying certain information after a CoS has been assigned.

However, a sponsor note should be used for the purpose permitted by the Home Office guidance. It should not be treated as a general mechanism for rewriting a Certificate or avoiding the need to withdraw and replace a CoS where a significant error has been made.

Before adding a sponsor note, the employer should establish:

• what information on the CoS is incorrect;
• what the correct information should be;
• whether the CoS still shows as Assigned;
• whether the Home Office guidance permits the information to be amended or clarified through a sponsor note;
• whether the worker has already submitted their immigration application;
• whether UKVI has already made a decision; and
• whether the corrected information affects the worker’s substantive eligibility.

 

1. When can a sponsor note be added?

A sponsor note can be added while the Certificate of Sponsorship is in Assigned status.

This makes the status of the Certificate an important preliminary check whenever an error is discovered.

Employers should remember, however, that Assigned status does not necessarily mean that the worker has not yet applied for immigration permission.

A CoS will generally continue to display as Assigned while an immigration application is awaiting a decision. It will normally change to Used once UKVI has made a decision to grant or refuse the application.

The employer should therefore check both the SMS and the worker’s actual immigration application status before deciding how to proceed.

 

2. What can a sponsor note be used for?

Home Office sponsor guidance allows a sponsor note to be used in specified circumstances to:

• amend a start date or end date;
• amend or update salary details;
• amend or update working hours;
• correct minor errors; and
• provide additional information or clarification.

This means that sponsor notes are not limited to obvious typographical mistakes.

For example, where the salary recorded on an Assigned CoS is incorrect, the sponsor-note function can be used to amend or update the salary details. Likewise, working hours and employment start or end dates can be amended through a sponsor note while the Certificate remains Assigned.

Whether the corrected information remains compliant with the relevant immigration requirements is a separate question.

 

3. What should a sponsor note say?

A sponsor note should be clear, factual and sufficiently specific to allow the Home Office to understand:

• what information on the CoS is incorrect or requires clarification;
• what the correct information is; and
• where appropriate, why the information has been amended or clarified.

The note should avoid unnecessary narrative, speculation or ambiguous wording.

For example, where a salary has been entered incorrectly, the note should clearly identify the incorrect figure and the correct figure rather than merely stating that the salary has “changed”.

This distinction can be important because describing an original data-entry error as a subsequent salary change could create an inaccurate chronology of the sponsored employment.

Similarly, if an incorrect start date was entered when the Certificate was assigned, the sponsor should avoid wording that suggests the start date was subsequently postponed if that is not what happened.

The sponsor’s record should accurately reflect the facts.

 

4. Verify the correction before adding the sponsor note

The employer should verify the correct information against the underlying evidence before adding a sponsor note.

Depending on the error, this may involve checking:

• the worker’s passport;
• the employment contract;
• the offer letter;
• pay and remuneration information;
• contracted working hours;
• the genuine duties of the role;
• the intended employment dates;
• the relevant work location; and
• other recruitment or sponsorship records.

The purpose of the sponsor note is to correct or clarify the sponsorship record. Employers should therefore avoid adding a note based on information that has not itself been verified.

 

5. A sponsor note does not cure an eligibility problem

The availability of the sponsor-note function should not be confused with substantive immigration eligibility.

For example, an employer may be able to use a sponsor note to correct the salary recorded on the CoS. If the correct salary is below the applicable requirement for the sponsored route, adding the sponsor note does not resolve that underlying problem.

The employer should therefore conduct two separate exercises:

1. correct the sponsorship record using the appropriate mechanism; and
2. reassess immigration eligibility using the corrected information.

This is particularly important where the correction concerns:

• salary;
• working hours;
• employment dates;
• the nature of the role; or
• other information relevant to the immigration requirements.

 

6. Do not use a sponsor note for a significant error

A sponsor note should not be used to try to correct an error that Home Office guidance treats as significant.

Examples of significant errors include:

• the wrong occupation code;
• the wrong immigration route or subcategory; and
• incorrect information in more than one of the worker’s nationality, date of birth and surname.

Where a significant error is identified and the Certificate has not yet been used to support an immigration application, the sponsor should normally withdraw the incorrect CoS and assign a new one.

Adding a sponsor note explaining that the occupation code or immigration route should have been different does not convert an incorrectly assigned Certificate into a correctly assigned one where the guidance requires withdrawal and replacement.

 

7. Review the entire CoS before adding the note

Before adding a sponsor note, the employer should check the rest of the Certificate for further inaccuracies.

This is important because the appropriate response may change if additional errors are identified.

For example, an employer may initially identify a single incorrect date of birth and consider adding a sponsor note. If a subsequent review shows that the worker’s surname and nationality are also incorrect, the Certificate may instead fall within the significant-error rules.

A sensible review should cover:

• identity;
• immigration route;
• occupation code;
• job title;
• job description;
• salary;
• working hours;
• employment dates;
• work location; and
• any route-specific information.

 

8. Keep an internal record of the correction

Employers should retain an appropriate internal record of material CoS corrections.

The record should allow the sponsor to explain:

• what the original error was;
• when it was discovered;
• how the correct information was verified;
• what action was taken in the SMS;
• when the sponsor note was added;
• whether the worker had already submitted an immigration application;
• whether the correction affected immigration eligibility; and
• whether any wider process failure was identified and addressed.

This can be particularly important if the Home Office subsequently reviews the worker’s sponsorship history or examines the employer’s sponsorship systems during a compliance visit.

 

9. Check the note before submitting it

Sponsors should apply the same level of care to a sponsor note as they do to the original Certificate.

A poorly drafted sponsor note can create a second inconsistency rather than resolving the first.

Before submitting the note, the employer should check that:

• the correct worker and CoS have been selected;
• the note accurately identifies the incorrect information;
• the replacement information has been independently verified;
• the wording accurately describes whether the issue is an original error or a later change;
• the correction is consistent with the employment documents;
• the corrected information does not reveal an unresolved eligibility issue; and
• a sponsor note is the appropriate mechanism rather than withdrawal and replacement.

 

10. Sponsor notes should form part of a controlled correction process

The sponsor-note function is most effective when it forms part of a documented internal correction process rather than being used informally whenever an error is discovered.

A suitable process can be:

Identify error → verify correct information → check CoS status → check application status → determine correction mechanism → reassess eligibility → add sponsor note where appropriate → retain evidence.

This approach helps employers avoid two common mistakes: using a sponsor note where a replacement CoS is required, and correcting an administrative field without considering whether the corrected information changes the worker’s immigration eligibility.

 

 

 

 

 

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Section G: When You Must Withdraw and Replace the Certificate of Sponsorship

Some Certificate of Sponsorship errors cannot appropriately be corrected by adding a sponsor note. Where the error is significant and the Certificate has not already been used to support an immigration application, the sponsor will normally need to withdraw the incorrect CoS and assign a new Certificate containing the correct information.

Withdrawal and replacement should not be viewed simply as an administrative inconvenience. Where Home Office guidance requires a new CoS, attempting to preserve the original Certificate through a sponsor note can leave a material inconsistency in the sponsorship record.

Employers should therefore establish both the nature of the error and whether the worker has already submitted an immigration application before withdrawing the Certificate.

 

1. Which CoS errors normally require withdrawal and replacement?

Home Office sponsor guidance identifies examples of significant errors where a new Certificate will normally be required.

These include:

• the wrong occupation code;
• the wrong immigration route or subcategory; and
• incorrect information in more than one of the worker’s nationality, date of birth and surname.

These errors are treated differently from minor mistakes and information that the guidance expressly permits to be amended or updated through a sponsor note.

Where a significant error is identified before the CoS has been used to support an immigration application, the employer should normally withdraw the incorrect Certificate and assign a replacement.

 

2. Check whether the worker has already applied before withdrawing the CoS

Employers should not rely solely on the status displayed in the Sponsor Management System when deciding whether an incorrect Certificate can be withdrawn and replaced.

A CoS can continue to show as Assigned after the worker has submitted an immigration application. It will generally remain Assigned while the application is awaiting a decision and normally changes to Used once UKVI has made a decision.

Before withdrawing a Certificate, the employer should therefore establish:

1. whether the CoS still shows as Assigned;
2. whether the worker has submitted an immigration application using that CoS; and
3. whether UKVI has made a decision on the application.

If the worker has not yet submitted an application, withdrawal and replacement may provide a relatively straightforward way of dealing with a significant error.

If the worker has already applied, the position requires separate assessment. The sponsor should not assume that it can simply withdraw the Certificate and give the worker another CoS because the original Certificate continues to display as Assigned.

 

3. Verify the replacement information before withdrawing the original CoS

Before withdrawing the incorrect Certificate, the employer should establish exactly what information needs to appear on the replacement.

This should involve a fresh review of the entire sponsorship record rather than correcting only the error that first brought the problem to the employer’s attention.

The sponsor should check, where relevant:

• the worker’s full name;
• date of birth;
• nationality;
• passport details;
• the correct immigration route and category;
• the correct occupation code;
• job title;
• job description and genuine duties;
• salary;
• weekly working hours;
• employment start and end dates;
• work location; and
• any route-specific information required on the Certificate.

This reduces the risk of withdrawing one incorrect Certificate only to assign a replacement containing another error.

 

4. Reassess eligibility before assigning the replacement CoS

A replacement Certificate should not simply reproduce the original sponsorship decision with one field changed.

Where the error concerns information relevant to immigration eligibility, the employer should reassess the worker and role using the correct information before assigning the new CoS.

For example, if the original Certificate contained the wrong occupation code, the employer should establish:

• which occupation code properly reflects the worker’s genuine duties;
• whether the role is eligible for sponsorship under that code;
• which salary requirements apply;
• whether the worker’s actual salary satisfies those requirements; and
• whether any other route-specific conditions are affected.

Similarly, if the wrong immigration route was selected, the sponsor should assess the worker against the requirements of the correct route before assigning the replacement.

The purpose of the replacement exercise is to produce an accurate and compliant Certificate, not simply a technically valid replacement reference number.

 

5. The replacement CoS will have a different reference number

When the sponsor assigns a replacement Certificate, the new CoS will have its own reference number.

The employer should ensure that the worker receives the replacement CoS reference and understands that the withdrawn Certificate must not be used for their immigration application.

Internal immigration teams, external advisers and any other person assisting with the application should also be told which Certificate is current.

This is particularly important where copies of the original CoS details have already been circulated.

The employer should retain a clear internal record linking the withdrawn Certificate to its replacement and explaining why the replacement was necessary.

 

6. Withdrawing an Undefined CoS does not return it to the sponsor’s allocation

Where an employer withdraws an assigned Undefined Certificate of Sponsorship, the Certificate is not returned to the sponsor’s CoS allocation.

This is an important practical consequence of correcting a significant error.

If the employer needs to assign a replacement Undefined CoS, it should check whether it has sufficient remaining allocation available.

Where there is no sufficient allocation available, the sponsor may need to obtain additional allocation, where the applicable sponsorship arrangements allow this, before the replacement Certificate can be assigned.

Employers should therefore check allocation availability as part of the correction process rather than discovering the problem only after the incorrect Certificate has been withdrawn.

 

7. What happens to the CoS assignment fee?

The Certificate of Sponsorship assignment fee is not refunded merely because the CoS is cancelled or withdrawn.

If the sponsor has to assign a replacement Certificate because the original contained a significant error, a further CoS assignment fee may therefore be payable for the new Certificate.

This is another reason why employers should have effective checking procedures before Certificates are assigned.

The financial cost of an error may extend beyond the original assignment fee if the mistake also delays the worker’s application, requires further immigration work or creates additional sponsorship administration.

 

8. What happens to the Immigration Skills Charge?

The Immigration Skills Charge (ISC) should be considered separately from the CoS assignment fee.

Where the Immigration Skills Charge was payable in connection with the original Certificate, the sponsor should consider the applicable Home Office refund rules when the CoS is withdrawn.

Where an ISC-paid CoS is withdrawn before it supports an immigration application, the sponsor should generally receive the applicable ISC refund in accordance with the relevant refund process.

The treatment of the ISC should not be confused with the CoS assignment fee. The CoS assignment fee is not refunded merely because the Certificate is cancelled or withdrawn.

Where a replacement Certificate is assigned, the sponsor should also establish whether the Immigration Skills Charge is payable in connection with the replacement and ensure that the payment and refund position is reconciled correctly.

 

9. Do not withdraw a CoS simply because a sponsor note seems untidy

Withdrawal and replacement are not required every time information on a Certificate needs to be corrected.

Home Office guidance expressly permits sponsor notes to be used for specified amendments and corrections while the CoS remains Assigned, including amendments to salary, working hours and start or end dates.

If the error falls within a permitted sponsor-note correction, the employer should not automatically withdraw the Certificate merely because issuing a fresh CoS appears administratively cleaner.

The appropriate mechanism should be determined by the nature of the error and the Home Office guidance.

 

10. Do not use a sponsor note simply to avoid replacement

The reverse is equally important.

A sponsor should not use a sponsor note merely because withdrawal and replacement would:

• require another CoS assignment fee;
• use further Undefined CoS allocation;
• require additional administrative work;
• delay the worker’s application; or
• require the employer to explain the mistake internally.

If the error is significant and requires withdrawal and replacement, those practical consequences do not convert the mistake into one that can appropriately be corrected through a sponsor note.

 

11. Tell the worker not to use the incorrect CoS

Where a significant error is discovered before the worker applies, the employer should communicate with the worker promptly.

The worker should be told not to submit their immigration application using the incorrect CoS reference.

Once the replacement has been assigned, the employer should provide the correct reference and, where appropriate, confirm the corrected sponsorship information that should be used in the application.

This control can prevent a manageable sponsorship error from becoming a more complicated immigration application problem.

 

12. Record why the CoS was withdrawn

The employer should maintain an internal audit trail explaining the withdrawal and replacement.

The record should include:

• the original CoS reference;
• the error identified;
• when the error was discovered;
• how the correct information was verified;
• whether the worker had submitted an immigration application;
• the date the original CoS was withdrawn;
• the replacement CoS reference;
• any relevant fee or ISC position;
• who authorised the corrective action; and
• any process improvements introduced as a result.

This can help the employer demonstrate that the error was identified, investigated and corrected through a controlled sponsorship process.

 

13. Investigate why the error occurred

Withdrawal and replacement should correct the immediate Certificate problem, but employers should also consider the underlying cause.

For example, the error may have resulted from:

• incorrect information supplied by the worker;
• a data-entry mistake;
• copying information from a previous CoS;
• using the wrong worker record;
• incorrect occupation-code analysis;
• misunderstanding the relevant immigration route;
• failure to check the employment contract;
• insufficient review before assignment; or
• inadequate training of SMS users.

An isolated mistake that is identified and corrected promptly is different from repeated inaccurate CoS assignments caused by inadequate sponsor controls.

Where the error exposes a weakness in the sponsor’s systems, the employer should correct the process as well as the Certificate.

 

14. Withdrawal and replacement checklist

Before withdrawing an incorrect Certificate of Sponsorship, employers should confirm:

1. The error has been identified precisely.
2. The correct information has been independently verified.
3. The error requires withdrawal and replacement rather than a sponsor note.
4. The worker has not already used the CoS to support an immigration application.
5. The replacement information has been checked against the relevant immigration requirements.
6. Sufficient CoS allocation is available where an Undefined CoS is required.
7. The relevant CoS fee and Immigration Skills Charge implications have been considered.
8. The worker has been told not to use the incorrect Certificate.
9. The replacement CoS has been independently checked before assignment.
10. The withdrawal and replacement have been documented internally.

The central principle is that withdrawal and replacement should be used where the original Certificate contains a significant error that cannot properly be dealt with through a sponsor note. The employer should correct the Certificate, but it should also use the exercise to confirm that the worker, role, route, occupation code, salary and other sponsorship information remain compliant when the correct facts are applied.

 

 

 

 

 

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Section H: What If the Worker Has Already Used the Certificate of Sponsorship?

A Certificate of Sponsorship error becomes more complicated once the worker has submitted their immigration application. At that point, the incorrect information may already form part of the application being considered by UKVI, and the sponsor should not assume that the problem can be resolved simply by withdrawing the Certificate and assigning another one.

The first task is to establish exactly how far the case has progressed.

The employer should determine:

• whether the worker has submitted their immigration application;
• whether the application is still awaiting a decision;
• whether UKVI has granted the application;
• whether UKVI has refused the application;
• what information was stated on the CoS;
• what information was stated in the immigration application;
• what the correct factual position is; and
• whether the error affects a substantive immigration requirement.

The appropriate response can be materially different depending on the answers.

 

1. A submitted application does not necessarily make the CoS show as Used

Employers should distinguish between the worker having used the CoS to support an immigration application and the status displayed for the Certificate in the Sponsor Management System.

A CoS will generally continue to show as Assigned while the worker’s application is awaiting a decision.

Once UKVI has made a decision to grant or refuse the application, the Certificate will generally show as Used.

This means that a sponsor can discover an error when:

1. the CoS still displays as Assigned;
2. the worker has already submitted their application; and
3. UKVI has not yet made a decision.

The sponsor should not interpret the word “Assigned” as confirmation that the worker has not applied.

 

2. Check application status separately from CoS status

Whenever an error is discovered after assignment, employers should make two separate status checks.

CoS status: What does the Sponsor Management System currently show?

Application status: Has the worker submitted their immigration application and, if so, has UKVI made a decision?

Both are necessary.

This distinction is particularly important before withdrawing a Certificate. The employer should not withdraw an apparently Assigned CoS on the assumption that it is unused without first confirming whether the worker has already submitted an application relying on it.

 

3. If the application has been submitted but is still pending

If the worker has already submitted their immigration application but UKVI has not yet made a decision, the employer should first determine the nature and potential significance of the error.

The sponsor should establish:

• what the CoS says;
• what the worker’s application says;
• what the correct information is;
• whether the CoS continues to show as Assigned;
• whether the relevant information is capable of being amended or clarified through a sponsor note;
• whether the error concerns a substantive sponsorship requirement; and
• whether the discrepancy could affect UKVI’s assessment of the application.

Where a sponsor note remains available and appropriate, the employer should ensure that any information added is accurate and clearly explains the position.

However, employers should not assume that changing or clarifying information within the sponsorship system automatically amends information already contained in the worker’s immigration application.

The CoS record and the immigration application are connected, but they are not the same record.

 

4. Do not assume a sponsor note automatically corrects the visa application

This is a particularly important distinction.

A sponsor note can provide corrected or additional information on an Assigned CoS where the Home Office guidance permits it. That does not mean that information previously submitted by the worker in their immigration application has automatically been replaced or corrected.

For example, suppose an incorrect salary appears on the CoS and the same incorrect salary was then entered in the worker’s application.

Adding a sponsor note to the CoS may correct the sponsorship record, but the employer and worker still need to consider the position of the pending immigration application and whether any further action is appropriate.

The same issue can arise with:

• employment dates;
• working hours;
• job information;
• personal details; and
• other information reproduced from the CoS in the immigration application.

Employers should therefore avoid treating the SMS as though it directly edits an application that has already been submitted.

 

5. Significant errors discovered after the worker has applied

Particular care is required where the employer discovers after submission that the CoS contains an error that would ordinarily be treated as significant.

Examples include:

• the wrong occupation code;
• the wrong immigration route or subcategory; and
• incorrect information in more than one of the worker’s nationality, date of birth and surname.

If the error had been identified before the worker applied, the normal response would be to withdraw the incorrect CoS and assign a replacement.

Once the Certificate has already been relied on in an application, however, the employer should not simply apply the pre-application withdrawal-and-replacement process without considering the effect on the pending application.

The sponsor should assess the specific error, the information submitted to UKVI and the immigration requirements affected. Where the error is material, specialist advice may be appropriate before further action is taken.

 

6. If the application has already been granted

If UKVI has already granted the worker’s immigration application, the employer should establish whether the error has any continuing effect on the sponsorship or the permission that was granted.

The CoS will generally show as Used at this stage.

The sponsor should compare:

1. the information recorded on the original CoS;
2. the information relied on in the immigration application;
3. the terms of the permission granted;
4. the worker’s employment contract; and
5. the worker’s actual employment arrangements.

The purpose of this exercise is to determine whether the problem is simply an historic administrative discrepancy or whether the worker is now working under arrangements that differ materially from those on which their immigration permission was based.

The employer should then consider any applicable sponsor reporting requirements and whether further immigration action is required.

 

7. Check the actual role after permission has been granted

Where the error concerns the sponsored role, the employer should establish what job the worker is actually performing.

The review should cover:

• actual duties;
• job title;
• occupation code;
• salary;
• working hours;
• work location; and
• other material employment terms.

This is particularly important where the error suggests that the occupation code or job description used for the immigration application may not accurately reflect the genuine role.

Home Office sponsor guidance requires the role and job description used for sponsorship to accurately reflect what the worker will actually do. Employers should therefore investigate a material discrepancy rather than treating it solely as a historic data-entry error.

 

8. Check actual salary and working hours

Where the error concerns salary or working hours, the employer should compare the sponsorship information with the worker’s actual contractual and payroll arrangements.

This should include checking:

• the salary stated on the CoS;
• the salary stated in the immigration application where relevant;
• the salary in the employment contract;
• the worker’s actual gross pay;
• contracted weekly hours;
• actual working arrangements where relevant; and
• the salary requirements applicable to the sponsored route and occupation.

If the correct salary and hours satisfy the relevant immigration requirements, the issue may be materially different from a case where the corrected information reveals that a substantive sponsorship requirement was not met.

The employer should therefore determine the legal significance of the correct facts rather than focusing solely on the fact that the original CoS contained an error.

 

9. If the application has been refused

If the worker’s application has already been refused, the employer should review the refusal decision alongside the Certificate of Sponsorship and the underlying evidence.

The employer should establish:

• whether the CoS error contributed to the refusal;
• whether the refusal was based on an unrelated immigration requirement;
• whether the correct information would have satisfied the relevant requirement;
• whether a new CoS is required for any further application;
• whether the role and worker remain eligible for sponsorship; and
• what immigration remedy or next step, if any, is available to the worker.

The employer should not automatically assign another CoS before understanding why the first application was refused.

If the underlying problem remains unresolved, assigning another Certificate with substantially the same defective sponsorship basis may simply reproduce the problem.

 

10. Distinguish an original error from a subsequent change

Where the worker has already obtained immigration permission or started employment, establishing the chronology becomes particularly important.

The employer should ask:

Was the information wrong when the CoS was assigned?

or:

Was the information correct at assignment but subsequently changed?

For example:

• an incorrect salary entered when the CoS was assigned is an original error;
• a salary correctly recorded on the CoS but subsequently reduced is a later change;
• an incorrect work location entered originally is a CoS error;
• a worker subsequently transferred to another work location is a change in circumstances;
• an incorrect start date entered originally is an error;
• a correctly recorded start date that is later postponed is a subsequent change.

These situations may engage different SMS functions and different sponsor obligations.

 

11. Do not rewrite the chronology

When correcting or reporting the position, sponsors should ensure that their records accurately describe what happened.

An original mistake should not be described as a subsequent change merely because that description appears administratively easier.

Likewise, a genuine later change should not be described as though the original CoS was incorrect if the information was accurate when the Certificate was assigned.

The sponsor should be able to demonstrate a coherent chronology from:

CoS assignment → immigration application → immigration decision → commencement of employment → subsequent changes.

This chronology can be important if UKVI later reviews the worker’s sponsorship history.

 

12. Consider whether UKVI needs to be informed

Depending on the stage of the case and the nature of the discrepancy, the sponsor may need to consider whether information should be reported through the Sponsor Management System or otherwise addressed as part of the worker’s immigration position.

This is particularly important where:

• the worker has already received immigration permission;
• the actual employment arrangements differ from the sponsored arrangements;
• salary has subsequently changed;
• the worker’s role has changed;
• the work location has changed;
• the worker’s start date has changed materially; or
• the discrepancy affects information relevant to the worker’s continuing sponsorship.

These issues move beyond correcting an original Certificate and into the sponsor’s ongoing reporting duties.

 

13. Keep a detailed audit trail

Where an error is discovered after the worker has applied or received immigration permission, the employer should maintain a particularly clear internal record.

The record should document:

• the original CoS information;
• the correct information;
• when and how the error was discovered;
• whether the worker had already applied at that point;
• the status of the immigration application;
• any sponsor note or SMS report made;
• any communication with the worker;
• any immigration advice obtained;
• the effect of the corrected information on eligibility; and
• any remedial action taken to prevent recurrence.

This can help demonstrate that the sponsor identified the issue, investigated it and responded appropriately rather than ignoring a known discrepancy.

 

14. Escalate material post-application errors

Not every post-application error will require specialist intervention. A minor clerical discrepancy may be capable of straightforward correction or clarification.

However, employers should consider escalating the matter where the error concerns:

• the occupation code;
• the immigration route;
• salary eligibility;
• working hours affecting salary calculations;
• the genuineness or nature of the sponsored role;
• multiple identity errors;
• a discrepancy that may have affected UKVI’s decision;
• a worker who has already received permission based on materially incorrect sponsorship information; or
• a potential breach of sponsor duties.

The key point is that an error discovered after the worker has applied should not be treated as though the application had never been submitted.

The sponsor should assess the Certificate, the immigration application, the correct factual position and the applicable sponsorship requirements together before deciding what corrective action is appropriate.

 

 

 

 

 

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Section I: Wrong Occupation Code on a Certificate of Sponsorship

Using the wrong occupation code on a Certificate of Sponsorship is a significant error. Home Office sponsor guidance specifically identifies an incorrect occupation code as an example of an error that should not simply be corrected by adding a sponsor note to the existing Certificate.

This is because the occupation code is central to the sponsorship assessment. It can determine whether the role is eligible for sponsorship, which salary requirements apply and whether particular route-specific requirements or concessions are available.

Where the wrong occupation code has been entered, the employer should therefore avoid treating the issue as a simple administrative correction.

 

1. Why the occupation code matters

The occupation code is intended to classify the genuine job the sponsored worker will perform.

Depending on the immigration route and circumstances, the occupation code can be relevant to:

• whether the job is eligible for sponsorship;
• the applicable salary requirements;
• the relevant going rate;
• whether particular salary options or concessions can be relied on;
• whether additional route-specific requirements apply; and
• UKVI’s assessment of whether the sponsored role is genuine.

An incorrect occupation code can therefore affect considerably more than the description attached to the worker’s CoS.

 

2. Select the occupation code from the genuine job duties

The employer should determine the appropriate occupation code by examining the job the worker will actually perform.

The analysis should consider:

• the worker’s principal duties;
• day-to-day responsibilities;
• the level and nature of the role;
• the skills required;
• the job description;
• the position within the employer’s organisation; and
• the relevant occupation descriptions under the applicable immigration framework.

The job title alone should not determine the occupation code.

Different employers can use the same job title for materially different roles. Equally, employers may use different titles for jobs involving substantially similar duties.

The correct question is therefore not:

“Which occupation code has the closest job title?”

It is:

“Which occupation code properly reflects the substantive duties and responsibilities of this particular role?”

 

3. Do not choose an occupation code simply because it produces a better immigration outcome

The employer should not select an occupation code because it provides a more convenient route to sponsorship.

For example, the sponsor should not choose a code simply because it:

• has a lower applicable salary requirement;
• makes the role eligible for sponsorship;
• allows the worker to rely on a particular salary option;
• appears easier to satisfy; or
• avoids a difficulty arising under the code that more accurately reflects the role.

The starting point must remain the genuine job.

If the role does not fall within an occupation code that permits sponsorship on the proposed basis, changing the description of the role on paper does not resolve the underlying eligibility problem.

 

4. What should you do if the wrong occupation code is discovered before the worker applies?

If the employer discovers the wrong occupation code before the worker has used the CoS to support an immigration application, the sponsor should normally:

1. stop the worker from using the incorrect CoS;
2. review the genuine job duties;
3. identify the correct occupation code;
4. reassess the role against the requirements applicable to that code;
5. check the salary and working hours against the correct requirements;
6. withdraw the incorrect Certificate;
7. assign a new CoS using the correct occupation code; and
8. provide the worker with the replacement CoS reference.

The sponsor should not simply add a note stating that a different occupation code should have been used. The wrong occupation code is expressly treated as a significant error for which withdrawal and replacement will normally be required.

 

5. Recheck salary when the occupation code changes

Correcting an occupation code should trigger a fresh salary assessment.

The salary requirements applicable to the correct occupation may differ from those considered when the original Certificate was assigned.

The employer should therefore check:

• the worker’s actual guaranteed gross salary;
• weekly working hours;
• the salary threshold applicable to the route;
• the relevant going rate, where applicable;
• any applicable salary option or permitted discount; and
• whether the salary stated in the employment documentation is consistent with the replacement CoS.

An employer should not assume that because the salary satisfied the requirements associated with the incorrect occupation code it will also satisfy those applicable to the correct code.

 

6. Check whether the role remains eligible for sponsorship

In some cases, identifying the correct occupation code may reveal that the role cannot be sponsored on the basis originally intended.

This is an important reason why occupation-code errors should not be approached simply as administrative mistakes.

The employer should determine whether:

• the correct occupation is eligible under the relevant route;
• the worker satisfies any route-specific requirements;
• the salary is sufficient;
• the role genuinely exists in the form described; and
• the sponsorship can lawfully proceed.

If the correct facts do not satisfy the immigration requirements, assigning another CoS under a more convenient occupation code is not an appropriate solution.

 

7. What if the worker has already submitted their application?

The position becomes more complicated where the employer discovers the incorrect occupation code after the worker has already submitted an immigration application.

The CoS may still display as Assigned while the application is pending. This does not mean the employer should automatically withdraw it and assign another Certificate.

The sponsor should establish:

• whether the application is still pending;
• which occupation code was stated on the CoS;
• which occupation code properly applies to the genuine role;
• whether the worker remains eligible under the correct occupation code;
• whether the salary satisfies the requirements applicable to the correct code; and
• what effect the discrepancy may have on the pending application.

Because an incorrect occupation code is treated as a significant CoS error and may affect substantive eligibility, employers should consider obtaining specialist advice before taking corrective action where the worker has already applied.

 

8. What if the visa has already been granted?

If UKVI has already granted the worker’s application, the sponsor should review the position carefully rather than assuming the error is no longer relevant.

The employer should compare:

1. the occupation code stated on the CoS;
2. the job description used for sponsorship;
3. the worker’s actual duties;
4. the employment contract;
5. the worker’s actual salary and working hours; and
6. the requirements that would apply to the genuine role.

This assessment can help establish whether the problem is an isolated classification error or whether there is a wider discrepancy between the role sponsored and the job actually being performed.

The employer should then consider any applicable reporting requirements and whether further immigration action is required.

 

9. Do not rewrite the job to justify the occupation code

Where an occupation-code problem is identified, employers should avoid changing the written job description merely to make the existing code appear correct.

The analysis should run in the opposite direction:

Actual role → genuine duties → appropriate occupation code → applicable immigration requirements.

It should not be:

Preferred occupation code → rewritten job description → attempt to make the role fit.

The role and job description used for sponsorship should accurately reflect what the worker will actually do.

 

10. Occupation-code errors can expose wider compliance weaknesses

An isolated occupation-code mistake should be investigated and corrected. Repeated occupation-code errors may indicate a broader weakness in the employer’s sponsorship processes.

Potential causes can include:

• relying primarily on job titles rather than duties;
• copying occupation codes from previous Certificates;
• failing to review current occupation classifications;
• allowing recruitment teams to determine codes without immigration review;
• failing to connect occupation-code analysis with salary assessment;
• inadequate review before CoS assignment; or
• insufficient training of sponsor licence personnel.

Where an occupation-code error is identified, the sponsor should therefore consider whether other Certificates assigned through the same process should also be reviewed.

 

11. Keep evidence supporting the occupation-code decision

Employers should retain sufficient records to explain why a particular occupation code was selected.

Depending on the role, useful records can include:

• the job description;
• the employment contract or offer;
• recruitment documentation;
• an organisational chart where relevant;
• internal occupation-code analysis;
• salary calculations; and
• the review or approval undertaken before the CoS was assigned.

This evidence can be particularly important if UKVI later questions whether the occupation code accurately reflects the sponsored role.

 

12. Wrong occupation code: employer action summary

Where an employer discovers an incorrect occupation code, the appropriate starting approach is:

Stop → verify the genuine role → identify the correct occupation code → reassess eligibility and salary → check application status → withdraw and replace where the CoS remains unused → escalate where the worker has already applied or received permission.

The critical point is that the occupation code is not merely descriptive data on the Certificate of Sponsorship. It can determine fundamental aspects of the worker’s immigration eligibility, which is why an incorrect occupation code requires more than a routine sponsor-note correction.

 

 

 

 

 

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Section J: Incorrect Salary or Working Hours on a Certificate of Sponsorship

Errors involving salary or working hours on a Certificate of Sponsorship require particular care because these details can be directly relevant to the worker’s eligibility under the sponsored immigration route.

Home Office sponsor guidance expressly allows sponsors to amend or update salary details and working hours by adding a sponsor note while the CoS remains in Assigned status.

This means an incorrect salary or number of working hours does not automatically require the sponsor to withdraw the CoS and assign a replacement.

However, the availability of a sponsor note only answers the administrative question of how the sponsorship record can be corrected. The employer must separately establish whether the worker remains eligible when the correct salary and working hours are applied.

 

1. What should an employer do if the salary on the CoS is wrong?

If the employer discovers that the salary recorded on the Certificate is incorrect, it should first establish what the salary should have been at the time the CoS was assigned.

The employer should verify the correct figure against the underlying employment arrangements, including where relevant:

• the employment contract;
• the offer letter;
• approved remuneration information;
• payroll records where employment has already started;
• contracted working hours;
• any relevant allowances or other remuneration; and
• the salary information approved internally when sponsorship was authorised.

The sponsor should not correct one salary figure by relying on another internal record without first establishing which figure accurately reflects the employment arrangement.

 

2. Salary details can be amended by sponsor note

While the Certificate remains in Assigned status, Home Office sponsor guidance permits salary details to be amended or updated through a sponsor note.

Where the original figure was entered incorrectly, the sponsor note should clearly identify the error and the correct salary.

For example, the note should make clear that:

the salary entered on assignment was incorrect and the correct salary is £X per year.

The sponsor should avoid describing an original data-entry error as a later salary change if the salary itself has not changed.

Maintaining an accurate chronology is important because an original CoS error and a genuine subsequent reduction or alteration in salary can have different sponsorship consequences.

 

3. Working hours can also be amended by sponsor note

Home Office guidance similarly permits the sponsor to amend or update working hours through a sponsor note while the CoS remains Assigned.

If the hours recorded on the Certificate are incorrect, the employer should establish the worker’s genuine contracted working hours before making the correction.

This should be checked against:

• the employment contract;
• the offer documentation;
• the normal working arrangements for the role;
• the salary stated on the CoS; and
• the hours used in any immigration salary calculation.

The sponsor should assess salary and working hours together rather than correcting one without checking the other.

 

4. Recalculate immigration eligibility using the correct figures

Correcting salary or hours should trigger a fresh eligibility check.

Depending on the immigration route and the circumstances of the worker, the employer may need to consider:

• the applicable general salary threshold;
• the applicable going rate for the occupation, where relevant;
• the worker’s weekly working hours;
• any rules governing the calculation or pro-rating of salary;
• whether the worker is relying on a permitted salary option or discount;
• whether particular elements of remuneration can be counted; and
• any transitional or route-specific provisions that apply to the worker.

The assessment should be based on the correct employment terms, not the figures originally entered on the Certificate.

 

5. A sponsor note cannot make an insufficient salary sufficient

This distinction is fundamental.

Suppose a sponsor intended to pay a worker £40,000 but accidentally recorded £45,000 on the Certificate.

The fact that the employer can amend the salary information through a sponsor note does not mean that £40,000 automatically satisfies the relevant immigration requirements.

The employer must reassess the worker using the £40,000 figure.

If the correct salary does not meet the applicable requirements, the underlying sponsorship problem remains regardless of whether the SMS record has been corrected successfully.

The employer should therefore treat the process as:

Correct salary → correct hours → applicable occupation code → applicable salary rules → eligibility assessment.

 

6. Check the occupation code at the same time

Where a salary discrepancy is identified, the employer should also confirm that the occupation code is correct.

The applicable salary requirements can depend on the occupation under which the worker is being sponsored.

If the wrong occupation code has been used, the employer may be dealing with two separate issues:

1. an incorrect salary or hours entry; and
2. a significant occupation-code error.

Correcting the salary by sponsor note would not resolve the incorrect occupation code.

The sponsor should therefore avoid assessing salary errors in isolation from the occupation classification.

 

7. Original salary error or subsequent salary change?

The employer should determine whether the salary was incorrect when the Certificate was assigned or whether the salary was originally correct and subsequently changed.

For example:

Original error:
The worker’s agreed salary was £45,000 when the CoS was assigned, but £54,000 was entered accidentally.

Subsequent change:
The worker’s agreed salary was £45,000 when the CoS was assigned and £45,000 was correctly recorded, but the employer later proposes to reduce the salary to £42,000.

These are not the same sponsorship event.

The first concerns correction of inaccurate information on the original CoS.

The second concerns a genuine change to the sponsored worker’s employment circumstances and should be considered under the relevant sponsor reporting and immigration requirements.

 

8. Subsequent salary reductions require separate consideration

Where the salary recorded on the original CoS was correct but the employer subsequently proposes to reduce the worker’s pay, the issue should not be treated merely as correction of a CoS error.

The employer should consider:

• whether the salary change must be reported through the SMS;
• whether the revised salary continues to satisfy the requirements of the immigration route;
• whether the circumstances permit the worker to continue in the role on the revised salary;
• whether a new CoS and a new application for permission may be required; and
• whether sponsorship must cease if the applicable requirements are no longer met.

This is why accurate chronology is important. Describing a genuine salary reduction as though the original Certificate simply contained the wrong figure can obscure the actual sponsor compliance issue.

 

9. Check for inconsistencies between the CoS and employment documents

A salary error can expose wider inconsistencies in the employer’s records.

The sponsor should compare:

1. the salary on the Certificate of Sponsorship;
2. the salary stated in the worker’s immigration application where relevant;
3. the employment contract;
4. the offer letter;
5. internal remuneration approval;
6. payroll records where employment has commenced; and
7. the worker’s actual pay.

Where different figures appear across these records, the employer should establish the correct factual position and understand why the inconsistency arose.

Simply changing the CoS figure without reconciling the underlying records can leave the sponsor exposed to further questions if UKVI later reviews the worker’s file.

 

10. Check actual payroll where the worker has started employment

If the worker has already started work, the employer should not limit the review to contractual documents.

Actual payroll records should also be checked.

The employer should establish:

• what salary the worker has actually received;
• whether the payroll frequency is consistent with the employment terms;
• whether any deductions or adjustments require consideration;
• whether actual working arrangements match the hours relied on for sponsorship; and
• whether the worker continues to satisfy the applicable immigration requirements.

This is particularly important where the CoS error is discovered during an internal sponsor audit or after UKVI has requested evidence about the sponsored worker.

 

11. What if the worker has already submitted their immigration application?

If the worker has already applied, the employer should consider both the sponsorship record and the information contained in the immigration application.

The CoS may continue to show as Assigned while the application is pending, and the sponsor-note function may therefore still be available.

However, adding a sponsor note does not necessarily alter information that the worker has already submitted in their application.

The employer should establish:

• what salary and hours were stated on the CoS;
• what salary and hours were stated in the immigration application;
• what the correct salary and hours are;
• whether the worker remains eligible using the correct figures; and
• whether further action is appropriate in relation to the pending application.

Where the corrected salary creates a substantive eligibility issue, the matter should be escalated rather than treated solely as an SMS correction.

 

12. What if the worker’s immigration permission has already been granted?

Where permission has already been granted, the employer should compare the sponsorship information with the worker’s actual employment arrangements.

A useful review sequence is:

CoS salary and hours → immigration application → employment contract → actual working hours → actual payroll.

The sponsor should then determine:

• whether the original CoS contained an administrative error;
• whether the worker’s actual employment complies with the sponsored arrangements;
• whether the correct salary satisfies the applicable immigration requirements;
• whether there has subsequently been a reportable change; and
• whether further immigration or sponsor action is required.

 

13. Salary errors can create sponsor compliance risk

An isolated salary data-entry error that is identified and corrected appropriately is different from a systemic failure to ensure that sponsored workers are paid in accordance with the sponsorship arrangements.

Repeated discrepancies can indicate weaknesses in the employer’s systems, particularly where:

• HR records do not match CoS information;
• salary changes are not communicated to the sponsor licence team;
• payroll changes take place without immigration review;
• working hours used for sponsorship are inaccurate;
• salary eligibility is not recalculated when employment terms change; or
• CoS information is copied from previous workers without proper verification.

Where a salary or working-hours error is discovered, the employer should therefore consider whether the problem is confined to one worker or reflects a wider sponsorship-control issue.

 

14. Salary and hours correction checklist

When an error involving salary or working hours is identified, employers should check:

1. What salary and hours are recorded on the CoS?
2. What are the correct contractual salary and hours?
3. Was the information wrong at assignment or did it change later?
4. Does the CoS remain in Assigned status?
5. Has the worker already submitted their immigration application?
6. Can the information be amended or updated through a sponsor note?
7. Is the occupation code correct?
8. Does the corrected salary satisfy the applicable immigration requirements?
9. Do the employment contract and other records match the corrected information?
10. If employment has started, does actual payroll match the compliant position?
11. Are any sponsor reporting obligations triggered?
12. Does the error reveal a wider weakness in the sponsor’s internal controls?

The key principle is that an incorrect salary or working-hours entry has two dimensions: correcting the Certificate and confirming substantive immigration compliance.

Employers need to address both.

 

 

 

 

 

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Section K: Incorrect Job Details on a Certificate of Sponsorship

Errors in the job title, job description or duties recorded on a Certificate of Sponsorship require careful assessment because the sponsored role must accurately reflect the job the worker will actually perform.

Some job-detail errors may amount to a minor mistake or require additional clarification that can appropriately be addressed through a sponsor note while the CoS remains Assigned.

Other discrepancies can reveal a more fundamental sponsorship problem. In particular, an inaccurate job description may call into question the occupation code, the worker’s salary requirements or whether the role described on the CoS genuinely corresponds with the job being offered.

The employer should therefore look beyond the wording error itself and establish whether the underlying sponsored role remains accurate.

 

1. Check the genuine job rather than the wording alone

When an employer discovers an error in the job details, the starting point should be the role the worker will actually perform.

The sponsor should compare:

1. the worker’s genuine day-to-day duties;
2. the internal job description;
3. the employment contract or offer letter;
4. the job title stated on the CoS;
5. the job description recorded for sponsorship purposes; and
6. the occupation code used on the Certificate.

The purpose of this exercise is to establish whether the CoS contains an isolated drafting error or whether the Certificate describes a materially different role from the one the worker will actually undertake.

 

2. Incorrect job title

An incorrect job title does not necessarily mean that the occupation code or underlying sponsorship is wrong.

Employers use different internal titles for similar roles, and a minor mistake in the title may not change the substantive nature of the job.

For example, an administrative error in the wording of an internal job title may be materially different from a situation where the title recorded on the CoS suggests that the worker is performing an entirely different occupation.

The employer should therefore ask:

• Is only the title wrong?
• Are the job duties correctly described?
• Does the occupation code still accurately reflect those duties?
• Is the salary assessment still correct?
• Does the employment contract describe the same substantive role?

Where the issue is genuinely a minor wording error or requires clarification, a sponsor note may potentially provide the appropriate mechanism while the CoS remains Assigned.

Where the title discrepancy exposes a more fundamental problem with the role or occupation code, the employer should address that underlying issue rather than treating it as a simple title correction.

 

3. Incorrect job description

An inaccurate job description can be more significant because the duties of the role are central to identifying the appropriate occupation code.

Home Office sponsor guidance requires the role and job description used for sponsorship to accurately reflect what the worker will actually do.

If the description contains a minor omission or requires additional information, the sponsor may be able to provide clarification through a sponsor note while the Certificate remains Assigned.

However, if the description materially misrepresents the job, the employer should investigate why.

For example, the sponsor should establish whether:

• the wrong job description was copied into the CoS;
• the duties changed before the Certificate was assigned;
• the description was taken from another worker’s Certificate;
• the occupation code was selected using an inaccurate description;
• the role was deliberately described in a particular way to fit an occupation code; or
• the worker is actually expected to perform a different role.

 

4. Check whether the occupation code is still correct

A job-description error should trigger a review of the occupation code.

The correct analytical sequence is:

Actual role → genuine duties → appropriate occupation code → applicable salary requirements.

If the corrected job description still supports the occupation code originally selected, the employer can then consider the appropriate mechanism for correcting or clarifying the description.

If the corrected duties show that a different occupation code should have been used, the employer is no longer dealing solely with a job-description error.

It also has a wrong occupation code issue.

Since Home Office guidance treats an incorrect occupation code as a significant error, the sponsor should apply the withdrawal-and-replacement rules where the Certificate has not already been used to support an immigration application.

 

5. Do not rewrite the role to preserve the existing occupation code

Employers should not respond to a job-description discrepancy by rewriting the role on paper simply to make it appear consistent with the occupation code already selected.

The occupation code should follow the genuine role. The role should not be reconstructed to justify a preferred occupation code.

This means the sponsor should not:

• add duties the worker will not genuinely perform;
• remove material duties merely because they point towards another occupation;
• inflate the seniority of the role;
• alter the description simply to satisfy sponsorship eligibility;
• use a job title that does not reflect the genuine position; or
• describe the role differently from the employer’s actual operational requirements.

The sponsorship record should provide an accurate representation of the employment being offered.

 

6. Check salary if the job details are wrong

A material change to the analysis of the job can also affect the salary assessment.

If reviewing the genuine duties results in a different occupation code, the employer should recalculate the applicable salary requirements using the correct code.

The sponsor should consider:

• the worker’s actual guaranteed gross salary;
• working hours;
• the applicable salary threshold;
• the relevant going rate, where applicable;
• any salary option or permitted discount being relied on; and
• any route-specific salary provisions.

The fact that the salary satisfied the requirements associated with the original occupation code does not establish that it will satisfy those applicable to the correct occupation.

 

7. Original job-detail error or subsequent change in role?

Employers should distinguish between an inaccurate description on the original Certificate and a genuine subsequent change in the worker’s role.

For example:

Original error:
The worker was always intended to perform Role A, but the CoS accidentally contained the job description for Role B.

Subsequent change:
The worker was genuinely sponsored to perform Role A and the CoS accurately described that role, but the employer later proposes to move the worker into Role B.

The first concerns correction of inaccurate information.

The second concerns a change in the sponsored worker’s employment circumstances and may engage separate reporting requirements and, depending on the nature of the change, potentially require further immigration action.

The employer should therefore establish the chronology before deciding how to use the SMS.

 

8. What if the worker has already applied?

If the worker has already submitted their immigration application, the employer should assess the job-detail discrepancy against the information already provided to UKVI.

The sponsor should establish:

• what role was described on the CoS;
• what information was included in the worker’s application;
• what job the worker will actually perform;
• whether the occupation code remains correct;
• whether the salary remains compliant; and
• whether the discrepancy is material to the pending application.

The CoS may still display as Assigned while the application is pending, but this should not be treated as confirmation that the worker has not already relied on it.

Where the corrected job information reveals that the wrong occupation code was used or that the worker may not satisfy the relevant immigration requirements, the matter should be escalated rather than treated solely as a drafting correction.

 

9. What if the worker has already started work?

Where the worker has already received immigration permission and started employment, the employer should compare the sponsored role with the job actually being performed.

The review should consider:

• the original CoS;
• the sponsored job description;
• the employment contract;
• the worker’s actual duties;
• the worker’s position within the organisation;
• the occupation code;
• salary and working hours; and
• any changes that have occurred since sponsorship was granted.

If the worker is performing the genuine role for which they were sponsored and the discrepancy is confined to an historic administrative error, the position may be materially different from a case where the worker is actually performing a different job.

Where the role has subsequently changed, the employer should consider the applicable sponsor reporting and immigration requirements rather than attempting to characterise the issue as an original CoS error.

 

10. Job-detail discrepancies can be relevant during a Home Office compliance check

The accuracy of the sponsored role can become particularly important during Home Office compliance activity.

UKVI may compare information held within the sponsorship system against the employer’s records and the worker’s actual employment.

Depending on the circumstances, this can include comparison of:

• the CoS;
• job descriptions;
• employment contracts;
• salary records;
• working hours;
• organisational structures;
• information provided by managers; and
• information provided by the sponsored worker.

A material difference between the role described for sponsorship and the work actually being undertaken can therefore raise wider sponsor compliance concerns.

Where a permitted role change has taken place, sponsors should also ensure that any applicable reporting requirements have been met. Failure to report relevant changes can itself create compliance risk.

 

11. Keep evidence of the genuine role

Employers should retain appropriate evidence supporting the role described on the Certificate of Sponsorship.

Depending on the position, this may include:

• the approved job description;
• the employment contract;
• the offer letter;
• recruitment records;
• an organisational chart;
• internal approval documentation;
• occupation-code analysis;
• salary calculations; and
• records explaining any subsequent changes to the role.

The objective is to be able to demonstrate a consistent chain between the employer’s genuine recruitment requirement, the job offered, the occupation code selected and the work ultimately performed by the sponsored worker.

 

12. Incorrect job details: employer action test

Where an employer identifies an error in the job title, description or duties, it should work through the following sequence:

Actual job → contractual job → CoS description → occupation code → salary requirements → application status → correction or reporting mechanism.

The key question is not simply whether the wording on the Certificate can be corrected.

The employer needs to establish whether the correct job details continue to support the occupation code, salary assessment and immigration basis on which the worker is being sponsored.

 

 

 

 

 

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Section L: Incorrect Personal Details on a Certificate of Sponsorship

Errors in a sponsored worker’s personal details should be corrected promptly, but the appropriate action depends on the number and nature of the inaccuracies.

A minor mistake in a worker’s personal information may be capable of correction through a sponsor note while the Certificate of Sponsorship remains Assigned. However, Home Office sponsor guidance treats certain combinations of incorrect identity information as a significant error requiring a different approach.

In particular, where incorrect information has been entered in more than one of the worker’s nationality, date of birth and surname, the error is treated as significant. If the CoS has not already been used to support an immigration application, the sponsor should normally withdraw the incorrect Certificate and assign a new one.

 

1. Which personal details should employers check?

Before assigning a Certificate of Sponsorship, employers should check the worker’s personal details carefully against reliable identity documentation.

Depending on the information required for the Certificate, this should include:

• full name;
• surname or family name;
• given names;
• date of birth;
• nationality;
• passport or travel document details; and
• any other identifying information required for the sponsorship record.

The details should be taken from the worker’s current documentation rather than copied automatically from an old HR record, previous immigration document or earlier Certificate.

 

2. Minor spelling errors in the worker’s name

A minor typographical or spelling error in a worker’s name may potentially be corrected through a sponsor note while the Certificate remains Assigned.

For example, this may apply where:

• one letter has been mistyped;
• a given name has been misspelled;
• the order of names requires clarification;
• a middle name has been omitted accidentally; or
• the Certificate otherwise clearly relates to the correct individual.

The employer should nevertheless verify the correct name against the worker’s passport or other relevant identity document before adding the correction.

The sponsor note should make clear what was incorrect and what the correct information is.

 

3. Incorrect date of birth

An incorrect date of birth should be investigated immediately.

Where the date of birth is the only relevant identity field that has been entered incorrectly and the mistake is genuinely minor, the sponsor may be able to correct the position through a sponsor note while the CoS remains Assigned.

However, the employer should not assess the date-of-birth error in isolation without checking the worker’s other core identity information.

The sponsor should verify:

• surname;
• nationality;
• date of birth;
• full name; and
• passport or travel document details.

If the review reveals that more than one of the worker’s nationality, date of birth and surname is incorrect, the error moves into the significant-error category.

 

4. Incorrect nationality

An incorrect nationality entry should similarly be checked against the worker’s current passport or other appropriate evidence.

The employer should establish whether the nationality is the only relevant identity field entered incorrectly or whether there are additional discrepancies.

If nationality alone is incorrect, the sponsor should consider the error in context and determine the appropriate correction mechanism while the Certificate remains Assigned.

If nationality is incorrect together with the worker’s date of birth or surname, the Home Office significant-error rule becomes relevant because more than one of the specified identity fields is wrong.

 

5. Incorrect surname

Surname errors can arise for a number of reasons, including:

• simple spelling mistakes;
• transposition of names;
• differences in naming conventions;
• recent changes of name;
• copying information from an outdated record; or
• data-entry errors.

The employer should establish the worker’s correct current identity details and retain appropriate evidence supporting them.

Where the surname is the only specified identity field that is wrong, the position may potentially be capable of correction as a minor error.

Where the surname is wrong together with nationality or date of birth, the error should be treated as significant.

 

6. The nationality, date of birth and surname test

Employers should apply a specific check whenever an identity error is discovered.

Ask whether incorrect information appears in any of the following three fields:

1. Nationality
2. Date of birth
3. Surname

If only one of these is incorrect, the sponsor should assess whether the mistake can appropriately be corrected as a minor error while the CoS remains Assigned.

If more than one of these three details is incorrect, Home Office sponsor guidance treats the problem as a significant error.

Where the Certificate has not been used to support an immigration application, the normal response will be to withdraw the incorrect CoS and assign a replacement containing the correct identity information.

 

7. Why multiple identity errors are treated more seriously

Multiple incorrect identity fields create a more fundamental question about whether the Certificate accurately identifies the person being sponsored.

For example:

• wrong surname + wrong date of birth;
• wrong surname + wrong nationality;
• wrong nationality + wrong date of birth; or
• all three details being incorrect.

These combinations go beyond the type of isolated clerical mistake that would ordinarily be dealt with through a minor correction.

The sponsor should therefore avoid attempting to preserve the original Certificate through a series of sponsor-note amendments where the guidance treats the combination of errors as significant.

 

8. Check whether the wrong worker’s details have been used

Multiple personal-detail errors can indicate that the problem is not simply typographical.

The employer should establish whether:

• details from another candidate were entered accidentally;
• an old worker record was copied;
• the wrong passport was used when preparing the Certificate;
• information from a previous CoS was duplicated;
• two worker records have been confused; or
• there is another explanation for the discrepancy.

If the wrong individual’s details have been used, the employer should treat the matter as a serious sponsorship-record issue and review the entire Certificate rather than correcting individual fields one at a time.

 

9. What should the sponsor do before the worker applies?

If the personal-detail error is discovered before the worker submits their immigration application, the employer should first determine whether the error is minor or significant.

For a minor error, the employer should:

1. verify the worker’s correct identity information;
2. check the remainder of the CoS for further errors;
3. confirm that the Certificate remains Assigned;
4. add an appropriate sponsor note where permitted; and
5. retain evidence supporting the correction.

Where more than one of nationality, date of birth and surname is incorrect, the employer should normally:

1. tell the worker not to use the incorrect CoS;
2. verify all personal details;
3. review the remainder of the Certificate;
4. withdraw the incorrect CoS;
5. assign a replacement Certificate with the correct information; and
6. provide the worker with the new CoS reference.

 

10. What if the worker has already submitted their application?

If the worker has already submitted an immigration application, the employer should not assume that the position can be dealt with in the same way as a pre-application error.

The CoS may continue to display as Assigned while UKVI is considering the application.

The employer should establish:

• which personal details are incorrect;
• what information appears on the worker’s passport or other identity documentation;
• what information was entered in the immigration application;
• whether the application is still pending;
• whether the CoS still displays as Assigned; and
• whether the error is minor or falls within the significant-error rule.

Where a sponsor note is available and appropriate, it may correct or clarify the sponsorship record. However, the employer should not assume that adding a sponsor note automatically changes personal information already submitted by the worker in their immigration application.

Where multiple core identity fields are wrong, or there is uncertainty about whether the Certificate accurately identifies the applicant, the matter should be escalated before further action is taken.

 

11. What if UKVI has already made a decision?

Once UKVI has granted or refused the worker’s immigration application, the CoS will generally show as Used.

A Used Certificate cannot simply be treated as an Assigned CoS awaiting routine correction.

If the application has been granted, the employer should establish whether the incorrect information has carried through into the worker’s immigration records and whether any separate action is required to correct the individual’s details.

If the application has been refused, the employer should review the refusal decision to determine whether the identity discrepancy contributed to the outcome and what should be corrected before any further application is made.

The appropriate response will depend on the nature of the error, the information provided in the application and the immigration decision that has been made.

 

12. Name changes are different from original name errors

Employers should distinguish between information that was incorrect when the CoS was assigned and a genuine subsequent change in the worker’s personal circumstances.

For example:

Original error:
The worker’s surname was Smith when the CoS was assigned, but the employer accidentally entered Smyth.

Subsequent change:
The worker’s surname was Smith when the CoS was assigned and Smith was correctly recorded, but the worker later changed their surname.

The first is a Certificate error.

The second is a later change in the worker’s circumstances and should be considered under the applicable immigration and sponsor reporting processes.

The employer should preserve the true chronology rather than describing a later identity change as though the original Certificate had been wrong.

 

13. Retain evidence supporting personal-detail corrections

Employers should retain appropriate evidence showing how the worker’s correct identity information was established.

Depending on the circumstances, this may include:

• passport information;
• relevant immigration documentation;
• evidence of a lawful name change where applicable;
• the original sponsorship record;
• the sponsor note or replacement CoS details;
• communications with the worker; and
• an internal record explaining the error and corrective action.

The sponsor should also record why the error occurred where this is relevant to improving its sponsorship controls.

 

14. Personal-detail errors: employer action test

When a personal-detail error is identified, employers should use the following sequence:

Verify identity → check nationality, date of birth and surname → count the affected core fields → check the rest of the CoS → establish application status → determine the correct correction mechanism → retain evidence.

The key dividing line is particularly important:

One isolated identity error may potentially be capable of correction as a minor error. Incorrect information in more than one of nationality, date of birth and surname is a significant error and will normally require withdrawal and replacement where the CoS has not already been used to support an application.

 

 

 

 

 

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Section M: Incorrect Start Date or Employment Dates on a Certificate of Sponsorship

Errors involving the employment start date or end date on a Certificate of Sponsorship are relatively common, particularly where recruitment timetables, notice periods, visa processing and onboarding arrangements change during the sponsorship process.

Home Office sponsor guidance expressly permits sponsors to amend the start date or end date by adding a sponsor note while the CoS remains in Assigned status.

This means an incorrect employment date does not automatically require the Certificate to be withdrawn and replaced.

Employers must, however, distinguish between a date that was wrong when the CoS was assigned and a date that was correct originally but subsequently changed. Once the worker’s immigration permission has been granted, separate rules governing delayed start dates and sponsor reporting can become relevant.

 

1. What should an employer do if the start date on the CoS is wrong?

If the start date was entered incorrectly when the Certificate was assigned, the employer should establish the correct intended employment start date.

This should be checked against relevant records, which may include:

• the employment contract;
• the offer letter;
• recruitment records;
• the agreed notice period;
• internal onboarding documentation;
• communications with the worker; and
• any other evidence showing the intended commencement date.

Where the CoS remains Assigned, the sponsor can amend the start date through a sponsor note in accordance with the applicable sponsor guidance.

The note should clearly identify the correct date and, where appropriate, explain that the original date was entered incorrectly.

 

2. The end date can also be amended by sponsor note

Home Office guidance also permits the sponsor to amend the employment end date through a sponsor note while the CoS remains Assigned.

An incorrect end date may arise because of:

• a data-entry mistake;
• incorrect calculation of the intended sponsorship period;
• the wrong contractual end date being copied into the Certificate;
• confusion between different employment records; or
• an administrative mistake when the CoS was prepared.

The employer should verify the intended employment period before making the correction.

Where the end date affects another aspect of sponsorship administration, the sponsor should also check the wider consequences rather than treating the correction as an isolated date amendment.

 

3. Original date error or subsequent change?

As with salary and job-detail discrepancies, chronology is important.

The employer should ask:

Was the date wrong when the Certificate was assigned?

or:

Was the date correct when the Certificate was assigned but subsequently changed?

For example:

Original error:
The parties agreed that employment would begin on 1 October, but the sponsor accidentally entered 1 September on the CoS.

Subsequent change:
The parties genuinely intended employment to begin on 1 October and the CoS correctly recorded 1 October, but visa processing or another later event means the worker will now start on 15 October.

The first situation concerns correction of inaccurate information.

The second concerns a genuine change after the Certificate was assigned.

Both may involve the sponsorship system, but they should be recorded according to what actually happened.

 

4. Do not create a false chronology

Sponsors should not retrospectively describe a genuine delay as though the original Certificate contained a typing error.

Equally, where the date genuinely was entered incorrectly at assignment, the sponsor should not unnecessarily describe the correction as though the employment arrangements subsequently changed.

The employer’s records should allow the chronology to be understood clearly:

Original intended start date → CoS assignment → any subsequent change → immigration application → immigration decision → actual employment start date.

This distinction can become particularly important where UKVI later examines whether the sponsor complied with its reporting duties.

 

5. Check whether the worker has already submitted their application

Before dealing with a date discrepancy, the employer should establish the status of the worker’s immigration application.

The sponsor should determine:

1. whether the CoS remains Assigned;
2. whether the worker has submitted their immigration application;
3. whether UKVI has made a decision; and
4. whether the worker has already started employment.

These are separate questions.

A Certificate can continue to show as Assigned while an immigration application is pending. Employers should therefore not assume that an Assigned CoS means the worker has not yet applied.

 

6. What if the worker has already applied?

If the worker has submitted their immigration application but UKVI has not yet made a decision, the employer should establish whether the date recorded on the CoS remains accurate and whether a sponsor note is required.

Where the Certificate remains Assigned, Home Office guidance permits the sponsor to amend the start or end date through a sponsor note.

However, the employer should also consider the information already contained in the worker’s immigration application.

Adding a sponsor note changes or clarifies the sponsorship record; it should not automatically be assumed to amend information already submitted by the worker to UKVI.

The employer and worker should therefore ensure that the position presented to UKVI remains coherent and accurate.

 

7. What if the visa is granted but the worker cannot start on the original date?

Once immigration permission has been granted, a delayed commencement date needs to be considered under the sponsor rules governing when a sponsored worker must start employment.

Under current sponsor guidance, a sponsored worker should normally start work no later than 28 days after the latest of the relevant dates specified in the guidance.

Depending on the circumstances, the relevant 28-day period may be calculated by reference to dates such as:

• the start date recorded on the CoS, taking account of any permitted amendment before the application was decided;
• the date on which the worker’s immigration permission becomes valid; or
• the date on which the worker is notified of the grant of permission.

The precise trigger should be checked against the current sponsor guidance for the worker’s circumstances rather than assuming that the 28 days always runs from the original CoS start date.

 

8. What if the worker will start more than 28 days late?

Where the worker does not start within the permitted 28-day period, the sponsor should not simply leave the original sponsorship record unchanged.

Current sponsor guidance requires the employer to determine whether it will continue sponsoring the worker.

Depending on the circumstances, the sponsor may need to:

• report the worker’s revised start date and explain the reasons for the delay; or
• stop sponsoring the worker.

Where the sponsor continues sponsorship, it should be able to explain why the delayed start is considered appropriate in the circumstances.

The relevant report should be made within the applicable Home Office reporting timeframe, which is generally within 10 working days after the end of the 28-day period.

 

9. UKVI may consider the reason for a delayed start

A delay beyond the normal 28-day period should not be treated as automatically acceptable merely because the sponsor reports it.

The employer should retain evidence explaining why the worker did not start within the expected period and why sponsorship was continued.

Depending on the circumstances, relevant evidence could include:

• visa or travel-related correspondence;
• notice-period information;
• medical or other evidence where relevant;
• communications concerning the revised start date;
• internal approval of the delayed commencement; and
• the SMS report made by the sponsor.

The sponsor should ensure that any explanation given to UKVI accurately reflects the genuine reason for the delay.

 

10. What if the worker starts earlier than expected?

Employers should also ensure that the worker is legally entitled to begin the sponsored employment before allowing them to start work.

A revised operational start date does not override the need to complete the appropriate right to work check or any restrictions attached to the worker’s immigration status.

The employer should therefore coordinate:

• the sponsored employment start date;
• the worker’s immigration permission;
• the right to work check;
• HR onboarding; and
• payroll commencement.

This helps prevent the sponsorship record, immigration status and actual employment arrangements from becoming inconsistent.

 

11. Incorrect employment end dates

An incorrect end date should also be reviewed in context.

The employer should establish:

• the genuine intended duration of employment;
• whether the role is permanent or fixed-term;
• the period for which sponsorship was intended;
• whether the incorrect date affects any fee or charge calculation;
• whether the worker’s application has already been submitted; and
• whether UKVI has already made a decision.

Where the Certificate remains Assigned, the sponsor-note mechanism can be used to amend the end date in accordance with the sponsor guidance.

Where immigration permission has already been granted, a later change to the anticipated employment end date should be considered under the relevant sponsor reporting and immigration rules rather than treated automatically as an original CoS error.

 

12. Check the financial consequences of changing sponsorship dates

Employment dates can affect the period for which the worker is sponsored and may therefore have financial implications.

Depending on the circumstances, employers should consider whether correcting or replacing a Certificate affects:

• the period of sponsorship;
• the Certificate of Sponsorship assignment process;
• the Immigration Skills Charge where applicable;
• the worker’s immigration application fees; and
• the period of immigration permission being requested.

The employer should therefore avoid changing dates mechanically without considering whether the revised sponsorship period has wider consequences.

 

13. Keep employment dates consistent across sponsor records

Where a date is corrected or subsequently changes, employers should check the associated HR and immigration records.

Relevant records can include:

• the CoS;
• employment contract;
• offer letter;
• HR system;
• onboarding records;
• right to work records;
• payroll;
• the worker’s immigration records; and
• any SMS reports or sponsor notes.

Unexplained differences between these records can create unnecessary compliance problems during a sponsor audit or Home Office compliance visit.

 

14. Start-date and employment-date error checklist

Where a Certificate contains an incorrect employment date, the employer should check:

1. What date is currently recorded on the CoS?
2. What is the correct date?
3. What evidence confirms the correct date?
4. Was the date wrong when the CoS was assigned or did it change later?
5. Does the CoS still show as Assigned?
6. Has the worker already submitted their application?
7. Has UKVI already made a decision?
8. Can the date be amended through a sponsor note?
9. Has the worker already started employment?
10. If permission has been granted, does the 28-day delayed-start rule need to be considered?
11. Is an SMS report required?
12. Are the employer’s HR, right to work and payroll records consistent with the corrected position?

The central distinction is between correcting an inaccurate date while the CoS remains Assigned and reporting or managing a genuine change after the relevant sponsorship or immigration event has occurred.

Employers should establish the chronology first and then use the appropriate sponsorship process.

 

 

 

 

 

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Section N: Wrong Sponsorship Route or Category on a Certificate of Sponsorship

Selecting the wrong immigration route or sponsorship category on a Certificate of Sponsorship is a significant error. It should not normally be treated as a minor administrative mistake that can simply be corrected through a sponsor note.

The sponsorship route determines the immigration framework under which the worker is being sponsored. Using the wrong route can therefore affect eligibility, salary requirements, the type of Certificate required, the permitted period of sponsorship and other conditions attached to the application.

Where the wrong route or subcategory has been selected and the worker has not yet used the Certificate to support an immigration application, the employer should normally withdraw the incorrect CoS and assign the appropriate replacement Certificate.

 

1. Why the sponsorship route matters

A Certificate of Sponsorship is assigned for a particular immigration route and purpose.

The selected route can affect matters including:

• whether the employer is authorised to sponsor the worker;
• whether the role is eligible;
• which occupation requirements apply;
• which salary requirements apply;
• how long the worker can be sponsored;
• whether the Immigration Skills Charge applies;
• whether the worker must satisfy particular route-specific requirements;
• whether a Defined or Undefined CoS is required; and
• the immigration application the worker must make.

An error at route level can therefore affect the legal basis of the proposed sponsorship rather than merely one piece of information recorded on the Certificate.

 

2. Examples of route or category errors

Route and category errors can arise in different ways.

Examples can include:

• selecting the wrong sponsored work route;
• selecting an incorrect subcategory within the relevant sponsorship arrangements;
• assigning a Certificate under a route for which the proposed employment does not qualify;
• using the wrong type of CoS for the worker’s circumstances;
• selecting an option intended for a different type of sponsored worker; or
• copying the route information from a previous worker without checking the new case.

Whatever the cause, the employer should identify the correct immigration route before taking corrective action.

 

3. Do not use a sponsor note to correct the wrong route

A sponsor note can be used for specified amendments, minor errors and additional clarification while a CoS remains Assigned.

It should not be used to convert a Certificate assigned under the wrong sponsorship route or subcategory into the Certificate that should originally have been assigned.

Home Office sponsor guidance treats the wrong route or subcategory as a significant error.

Where the worker has not yet used the Certificate to support an immigration application, the normal approach is therefore:

Identify the correct route → reassess eligibility → withdraw the incorrect CoS → assign the correct replacement CoS.

 

4. Confirm the correct route before withdrawing the Certificate

The employer should not withdraw the original CoS and immediately assign another Certificate without first establishing the correct sponsorship basis.

The sponsor should confirm:

• which immigration route the worker should use;
• whether the sponsor licence covers that route;
• whether the job is eligible under the route;
• whether the occupation code is correct;
• whether the salary satisfies the applicable requirements;
• whether the worker meets any relevant route-specific criteria;
• which type of CoS is required; and
• whether any additional sponsorship information is required.

This ensures that the replacement Certificate addresses the underlying error rather than merely reproducing it in a different form.

 

5. Check whether the sponsor is authorised for the correct route

Identifying the correct immigration route does not necessarily mean that the employer can immediately assign a replacement Certificate.

The sponsor should confirm that its sponsor licence includes the relevant route and that it is authorised to sponsor the worker in the proposed circumstances.

If the employer’s licence does not currently cover the required route, the sponsor may need to take separate action before sponsorship can proceed.

The employer should not use another route merely because it is already available on the licence if that route does not properly apply to the worker and role.

 

6. Check whether the replacement requires a Defined or Undefined CoS

A route error may also expose an error in the type of Certificate being used.

For example, under the Skilled Worker route, whether the sponsor needs a Defined or Undefined Certificate depends on the worker’s circumstances.

If the correction means a different type of CoS is required, the employer should follow the appropriate process for that Certificate rather than attempting to reuse the incorrect one.

The detailed rules governing Defined and Undefined Certificates should be considered separately from the error-correction process.

 

7. Reassess the occupation code and salary

A route correction should trigger a wider eligibility review.

The employer should not assume that an occupation-code and salary assessment carried out for the original route remains sufficient under the correct route.

The sponsor should reconsider:

• the genuine duties of the role;
• the correct occupation code;
• the worker’s salary;
• contracted working hours;
• the applicable salary threshold;
• the relevant going rate where applicable;
• any salary option or permitted discount being relied on; and
• any other route-specific eligibility requirement.

The replacement CoS should only be assigned once the employer is satisfied that the worker and role qualify under the correct sponsorship route.

 

8. Check the worker’s application status before withdrawing the CoS

As with other significant errors, employers must establish whether the worker has already submitted an immigration application before withdrawing an incorrect Certificate.

The sponsor should check:

1. whether the CoS currently displays as Assigned;
2. whether the worker has submitted their immigration application;
3. whether the application is awaiting a decision; and
4. whether UKVI has already granted or refused the application.

The fact that the Certificate still shows as Assigned does not establish that the worker has not applied.

A CoS will generally continue to show as Assigned while an application is awaiting a decision and will normally show as Used once UKVI has made its decision.

 

9. What if the worker has not yet applied?

Where the wrong route or subcategory is discovered before the worker submits an immigration application, the position is generally more straightforward.

The employer should normally:

1. tell the worker not to use the incorrect CoS;
2. identify the correct immigration route;
3. confirm that the sponsor is authorised for that route;
4. reassess the worker and role against the correct requirements;
5. verify the occupation code, salary and working hours;
6. establish the correct type of CoS required;
7. withdraw the incorrect Certificate;
8. assign the correct replacement Certificate; and
9. provide the worker with the new CoS reference.

The employer should retain an internal record explaining why the original Certificate was withdrawn.

 

10. What if the worker has already submitted their application?

A route error discovered after submission requires more careful handling.

The sponsor should not simply withdraw the CoS and issue another Certificate on the assumption that this will correct the pending immigration application.

The employer should establish:

• which route was selected on the CoS;
• which immigration application the worker submitted;
• which route should properly have been used;
• whether the worker and role satisfy the correct route;
• whether the application is still pending; and
• what effect the route discrepancy has on the application already before UKVI.

Because the immigration route forms part of the fundamental basis of the application, a wrong-route error discovered after submission should normally be escalated for case-specific assessment before corrective action is taken.

 

11. What if UKVI has already granted the application?

If the worker’s immigration application has already been granted, the Certificate will generally show as Used and the employer should not attempt to treat the matter as a routine pre-application CoS correction.

The sponsor should review:

1. the route under which the worker was sponsored;
2. the immigration permission actually granted;
3. the route that should have applied;
4. the worker’s genuine role;
5. the occupation code;
6. salary and working hours; and
7. the worker’s actual employment arrangements.

The employer should then establish whether the discrepancy affects the worker’s continuing immigration position or the sponsor’s compliance obligations and whether further action is required.

A material route error after grant should not be ignored simply because UKVI has already issued permission.

 

12. What if the application has been refused?

If the worker’s application has been refused, the employer should review the refusal decision before assigning another Certificate.

The sponsor should determine:

• whether the route error caused or contributed to the refusal;
• whether there were additional eligibility problems;
• whether the worker qualifies under the correct route;
• whether a new CoS is required for a further application;
• whether the correct type of CoS is available; and
• whether any other aspect of the sponsorship needs to be corrected.

A replacement Certificate should not be assigned until the employer understands the reason for the refusal and is satisfied that the proposed sponsorship is compliant.

 

13. Consider CoS allocation, fees and the Immigration Skills Charge

Replacing a Certificate because the wrong route or category was selected can have practical and financial consequences.

Depending on the circumstances, the employer may need to consider:

• whether sufficient Undefined CoS allocation remains available;
• whether a Defined CoS must be obtained;
• a further CoS assignment fee;
• whether the Immigration Skills Charge applies under the correct sponsorship arrangements;
• the treatment of any Immigration Skills Charge already paid; and
• the effect of the correction on the worker’s immigration application costs.

Withdrawing an assigned Undefined CoS does not return it to the sponsor’s allocation.

The CoS assignment fee is also not refunded merely because the Certificate is cancelled or withdrawn. The Immigration Skills Charge has separate refund rules and should be considered independently.

 

14. Investigate how the wrong route was selected

A wrong-route error can indicate a weakness in the employer’s sponsorship procedures.

The sponsor should consider whether the error resulted from:

• insufficient understanding of the sponsored work routes;
• incorrect case assessment;
• selection of the wrong SMS option;
• copying a previous worker’s sponsorship information;
• failure to distinguish between different CoS types;
• lack of review before assignment;
• inadequate training of Level 1 Users; or
• poor communication between recruitment, HR and the sponsor licence team.

Where the cause could affect other sponsored workers, the employer should consider reviewing other recently assigned Certificates rather than assuming the mistake is isolated.

 

15. Wrong route or category: employer action test

Where the wrong sponsorship route or category has been selected, employers should use the following sequence:

Identify the error → establish the correct route → confirm sponsor authorisation → determine the correct CoS type → reassess the role, occupation code and salary → check application status → withdraw and replace where the CoS has not been used to support an application → escalate where the worker has already applied or received a decision.

The critical point is that a wrong sponsorship route is not merely an incorrect field on the Certificate. It can affect the entire legal basis on which the worker is being sponsored, which is why it should be treated as a significant CoS error.

 

 

 

 

 

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Section O: Can a Certificate of Sponsorship Error Cause a Visa Refusal?

A mistake on a Certificate of Sponsorship can affect a worker’s immigration application, but not every CoS error will automatically result in refusal.

The significance of the error depends on what information is wrong, whether it has been corrected or clarified, when the error is identified and, critically, whether the correct facts satisfy the requirements of the relevant immigration route.

Employers should therefore distinguish between a clerical discrepancy that can be corrected or explained and an error that reveals a substantive eligibility problem.

 

1. A clerical error is different from an eligibility failure

A Certificate can contain an administrative mistake even though the worker and role satisfy the immigration requirements.

Examples can include:

• a minor spelling error;
• an incorrect date entered accidentally;
• a salary figure transposed during data entry where the correct salary remains compliant;
• incorrect working hours entered accidentally where the genuine arrangements remain compliant; or
• information requiring clarification through a sponsor note.

The existence of the mistake does not by itself establish that the worker is ineligible.

The employer should identify the correct facts and determine whether the sponsorship remains compliant when those facts are applied.

 

2. The corrected facts are what matter

When a CoS error is discovered, employers should ask two separate questions:

1. How should the inaccurate Certificate information be corrected?
2. Does the worker remain eligible when the correct information is used?

The first is an administrative sponsorship question.

The second is a substantive immigration question.

A sponsor note may provide an appropriate mechanism for correcting certain information while the CoS remains Assigned, but the availability of that mechanism does not guarantee that the corrected information satisfies the immigration rules.

 

3. When can a CoS error create a refusal risk?

The risk becomes more significant where the corrected information shows that a requirement of the immigration route is not satisfied.

Depending on the route and circumstances, examples can include:

• the correct occupation code showing that the role is not eligible for sponsorship on the proposed basis;
• the correct salary falling below the applicable requirement;
• the correct working hours affecting the salary assessment;
• the Certificate having been assigned under the wrong immigration route;
• the genuine job being materially different from the role described for sponsorship;
• significant identity information being incorrect; or
• another corrected fact showing that a route-specific requirement is not met.

In these circumstances, the underlying problem is not simply that the Certificate contains a mistake. The problem is that the correct facts may not satisfy the relevant immigration requirement.

 

4. Wrong occupation code and refusal risk

An incorrect occupation code can be particularly significant because the code can affect the assessment of the role and the salary requirements that apply.

If the employer discovers that the wrong occupation code was used, it should identify the code that genuinely reflects the worker’s duties and reassess the application on that basis.

The employer should check:

• whether the role is eligible under the correct code;
• whether the worker’s salary satisfies the applicable requirements;
• whether any salary option or discount remains available;
• whether the job description accurately reflects the genuine role; and
• whether the worker otherwise qualifies under the relevant route.

If the correct occupation code results in a failure to meet a substantive immigration requirement, the potential refusal issue arises from that failure rather than merely from the existence of a typing or classification mistake on the original CoS.

 

5. Incorrect salary and refusal risk

An incorrect salary entry should similarly be tested against the worker’s genuine employment arrangements.

For example, if a CoS states a salary of £50,000 when the genuine salary is £45,000, the employer should assess the application using the £45,000 figure.

If £45,000 satisfies all applicable salary requirements, the case is materially different from one where the corrected salary falls below the relevant threshold or going rate.

The fact that salary information can be amended or updated through a sponsor note while the CoS remains Assigned does not remove the requirement for the genuine salary to satisfy the immigration rules.

 

6. Wrong working hours can affect the salary assessment

Incorrect working hours should not be dismissed as an insignificant administrative issue where hours are relevant to the salary calculation.

The employer should verify:

• the genuine contracted hours;
• the salary being paid;
• the applicable occupation code;
• the relevant salary rules; and
• whether the worker remains eligible when the correct hours are used.

If the corrected hours alter the salary assessment, the employer should recalculate eligibility before assuming that a sponsor-note correction resolves the problem.

 

7. Wrong route or category can affect the basis of the application

Selecting the wrong sponsorship route or subcategory is a significant error because the route determines the legal framework under which the worker is applying.

Different routes can impose different requirements relating to:

• the worker;
• the job;
• salary;
• occupation;
• duration of sponsorship;
• the type of Certificate required; and
• other route-specific criteria.

Where the wrong route has been selected, the employer should establish whether the worker actually qualifies under the correct route rather than assuming that the error can be resolved by explanation alone.

 

8. Inconsistencies can lead to further scrutiny

A discrepancy between the Certificate and other information provided to UKVI can also lead to questions about the application.

For example, UKVI may encounter different information across:

• the Certificate of Sponsorship;
• the worker’s immigration application;
• supporting documents;
• the employment contract;
• information previously provided by the sponsor; or
• other records available to the Home Office.

The existence of an inconsistency does not necessarily determine the outcome of the application, but employers should ensure that known errors are dealt with accurately and promptly rather than leaving conflicting information unexplained.

 

9. A sponsor note can clarify the record but does not guarantee the application outcome

Where Home Office guidance permits a sponsor note, the note can be used to amend or clarify the sponsorship record while the Certificate remains Assigned.

This can be important where an error is discovered before UKVI decides the worker’s application.

However, employers should not treat a sponsor note as a guarantee that:

• UKVI will disregard all information previously submitted;
• the worker’s application has itself been amended;
• the corrected facts satisfy the immigration requirements; or
• the application must be granted.

The sponsor note is a mechanism for correcting or clarifying sponsorship information. The worker must still satisfy the applicable immigration requirements.

 

10. What if UKVI identifies the error before the sponsor does?

In some cases, a discrepancy may be identified by UKVI during consideration of the immigration application rather than by the employer’s sponsorship team.

If UKVI seeks clarification or additional information, the employer should respond carefully and ensure that any explanation is consistent with the underlying records.

The sponsor should establish:

• what information was originally entered;
• why it was incorrect;
• what the correct information is;
• what evidence supports the correct position;
• whether the worker remains eligible; and
• whether the error indicates any wider sponsor compliance issue.

The employer should not attempt to reconstruct the employment arrangements retrospectively simply to make them consistent with the incorrect Certificate.

 

11. What if the application is refused because of a CoS-related issue?

Where UKVI refuses an application and the decision refers to the Certificate of Sponsorship or information recorded on it, the sponsor should review the refusal decision before taking further action.

The employer should determine:

1. what requirement UKVI considered was not satisfied;
2. whether the CoS contained incorrect information;
3. what the correct information should have been;
4. whether the correct facts would have satisfied the requirement;
5. whether a new CoS is required for any further application;
6. whether the worker and role remain eligible for sponsorship; and
7. whether any separate challenge or immigration remedy is available and appropriate.

The employer should not automatically assign another Certificate and repeat the application without understanding the reason for the refusal.

 

12. Do not assume that correcting the CoS reverses a refusal

Once UKVI has made a decision, subsequently correcting the employer’s sponsorship records does not itself reverse that immigration decision.

If the application has been refused, the worker and sponsor need to consider the options available following the decision.

Depending on the circumstances, this may involve considering:

• whether there is an available mechanism to challenge the decision;
• whether a fresh application is appropriate;
• whether a replacement CoS is required;
• whether the underlying sponsorship problem can be corrected; and
• whether the worker continues to satisfy the requirements of the relevant route.

The appropriate course will depend on the reason for refusal and the facts of the individual case.

 

13. Review the sponsor’s systems after a material CoS error

Where a CoS error contributes to an immigration problem, the employer should also investigate how the mistake passed through its internal sponsorship controls.

The review should consider whether:

• the Certificate was independently checked before assignment;
• the correct supporting documents were used;
• the occupation-code analysis was properly undertaken;
• salary calculations were checked;
• the worker’s personal information was verified;
• the correct route and CoS type were selected; and
• staff responsible for sponsorship require further training.

Correcting the individual case is important, but preventing the same error from affecting future applications should form part of the employer’s response.

 

14. CoS errors and visa refusal: employer action test

Where an employer is concerned that a Certificate error could affect an immigration application, it should work through the following sequence:

Identify the error → establish the correct facts → check application status → determine the permitted correction mechanism → reassess substantive eligibility → address any discrepancy in the pending application → review any UKVI decision → correct the underlying sponsor process.

The key principle is that a CoS error does not automatically mean that an immigration application will be refused. The material question is whether the correct facts satisfy the relevant immigration requirements and whether the sponsorship and application records are dealt with appropriately once the discrepancy is identified.

 

 

 

 

 

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Section P: Can Certificate of Sponsorship Errors Affect the Sponsor Licence?

A Certificate of Sponsorship error does not automatically place an employer’s sponsor licence at risk. Sponsors can make genuine administrative mistakes, and an isolated error that is identified, investigated and corrected appropriately is different from evidence of persistent or systemic non-compliance.

However, Certificate errors can become relevant to sponsor licence compliance where they indicate that the employer is failing to exercise proper control over sponsorship, is assigning Certificates containing materially inaccurate information or cannot demonstrate that sponsored workers are being employed in accordance with the basis on which they were sponsored.

The Home Office may therefore be concerned not only with the individual error but also with what the error reveals about the sponsor’s systems, processes and compliance controls.

 

1. An isolated CoS mistake is not automatically a sponsor licence breach

Not every typing error or administrative discrepancy should be treated as evidence that the employer is failing in its sponsor duties.

For example, an employer may discover that:

• a worker’s name contains a minor spelling error;
• a start date was entered incorrectly;
• salary or working hours were transposed during data entry;
• a job title contains a minor drafting error; or
• other information requires clarification.

Where the employer identifies the problem, verifies the correct information, uses the appropriate correction mechanism and maintains a proper record of what happened, the position is materially different from an employer that repeatedly assigns inaccurate Certificates or ignores known discrepancies.

 

2. Repeated CoS errors can indicate defective sponsorship systems

Repeated errors can be more significant because sponsors are expected to maintain effective systems for managing their sponsorship responsibilities.

If similar mistakes occur across multiple Certificates, the issue may no longer appear to be an isolated data-entry problem.

It may indicate weaknesses such as:

• inadequate checking before CoS assignment;
• poorly trained Level 1 Users;
• insufficient oversight by the Authorising Officer;
• incorrect occupation-code selection processes;
• weak communication between recruitment, HR, payroll and immigration teams;
• failure to verify salary and working hours;
• reliance on outdated worker information;
• copying information from previous Certificates;
• inadequate record keeping; or
• failure to identify and report relevant changes.

The sponsor should therefore consider the pattern of errors as well as the individual Certificate.

 

3. Material inaccuracies are more serious than minor clerical errors

The compliance significance of an error can also depend on what information is wrong.

A minor spelling mistake may have limited substantive significance.

Errors involving matters such as the following can require closer scrutiny:

• occupation code;
• immigration route or category;
• salary;
• working hours;
• the genuine duties of the role;
• multiple core identity details;
• employment dates; or
• other information relevant to the worker’s eligibility for sponsorship.

These details can affect whether the worker and role satisfy the immigration requirements and whether the Certificate accurately reflects the employment being offered.

 

4. Incorrect occupation codes can create wider compliance concerns

Occupation-code errors can be particularly important because the code should reflect the genuine job the worker will perform.

If an employer repeatedly assigns workers under inappropriate occupation codes, UKVI may examine whether the sponsor:

• understands the occupation classification requirements;
• is accurately assessing sponsored roles;
• is applying the correct salary requirements;
• is describing jobs accurately;
• has appropriate checking procedures; and
• is using sponsorship for genuine eligible roles.

The sponsor should therefore investigate why an incorrect occupation code was selected rather than treating the issue solely as a mistake affecting one Certificate.

 

5. Salary discrepancies can raise compliance issues

Salary errors can also become significant where the Certificate, employment contract and payroll records do not agree.

If UKVI examines a sponsored worker’s records, it may be necessary for the employer to explain differences between:

• the salary stated on the CoS;
• the salary stated in the employment contract;
• the salary used for the immigration application;
• the worker’s contracted hours; and
• the salary actually being paid through payroll.

An isolated data-entry mistake that can be evidenced and explained is different from a situation where sponsored workers are systematically being paid differently from the arrangements recorded for sponsorship.

Where a salary discrepancy is discovered, the employer should therefore verify actual payroll as well as correcting the sponsorship record.

 

6. Job-description errors can be relevant to whether the role is genuine

A Certificate should accurately describe the role the sponsored worker will actually perform.

If the job description recorded for sponsorship differs materially from the worker’s genuine duties, the employer should establish why.

Potential concerns can arise where:

• the role was described inaccurately to support a particular occupation code;
• the worker is performing materially different duties;
• the job has changed without the sponsorship implications being considered;
• the job description was copied from another worker; or
• the sponsor cannot demonstrate what role the worker was actually recruited to perform.

The employer should not attempt to resolve this type of discrepancy by retrospectively rewriting the job description to fit the Certificate.

 

7. Errors can become relevant during a Home Office compliance visit

Certificate inaccuracies may come to light during a Home Office compliance visit, sponsor audit or other compliance activity.

UKVI may compare information recorded in the sponsorship system with the employer’s underlying records and actual working arrangements.

Depending on the circumstances, this can include:

• Certificates of Sponsorship;
• personnel files;
• employment contracts;
• job descriptions;
• payroll records;
• working hours;
• right to work records;
• organisational charts;
• SMS reporting history;
• information provided by managers; and
• information provided by sponsored workers.

Unexplained discrepancies can therefore create wider questions about the reliability of the sponsor’s records and controls.

 

8. How the employer responds to an error matters

The employer’s response after discovering a Certificate error can itself be important.

A controlled response should generally involve:

1. identifying the precise error;
2. preserving the original record;
3. verifying the correct information;
4. checking the remainder of the Certificate;
5. establishing the CoS and immigration application status;
6. determining the correct correction mechanism;
7. reassessing substantive eligibility where relevant;
8. making any required correction or report;
9. documenting the action taken; and
10. investigating why the error occurred.

This provides a more defensible compliance position than correcting the visible error without considering its cause or consequences.

 

9. Do not conceal or retrospectively reconstruct an error

Where a Certificate contains incorrect information, employers should maintain an accurate account of what happened.

The sponsor should not:

• alter internal documents retrospectively to make them match the CoS;
• rewrite a job description to justify an incorrect occupation code;
• describe a subsequent change as an original error where that is not what happened;
• describe an original error as a later change simply to use a different SMS process;
• create documents that falsely suggest the incorrect information was accurate at the time; or
• ignore a material discrepancy because the worker has already received immigration permission.

The employer should instead maintain a clear chronology showing the original position, the error identified and the corrective action taken.

 

10. Keep an audit trail of CoS corrections

Employers should maintain records of material Certificate corrections as part of their sponsor compliance documentation.

A useful correction record can include:

• the worker’s name;
• the CoS reference;
• the date of assignment;
• the incorrect information;
• the correct information;
• the date the error was discovered;
• who discovered it;
• supporting evidence used to verify the correction;
• the worker’s application status at the time;
• whether a sponsor note was added;
• whether the Certificate was withdrawn and replaced;
• the replacement CoS reference where applicable;
• any SMS report made;
• any advice obtained; and
• the remedial action taken internally.

This can help the sponsor explain the history of the case if it is later reviewed by UKVI.

 

11. Review other Certificates where the error may be systemic

Some errors justify checking whether other sponsored workers may have been affected.

For example, a wider review may be appropriate where the employer discovers that:

• the wrong salary methodology has been used repeatedly;
• an incorrect occupation code has been applied to several similar roles;
• a standard job description is inaccurate;
• working hours have routinely been entered incorrectly;
• the wrong route or CoS type has been selected more than once;
• a particular Level 1 User has misunderstood an SMS process; or
• HR and payroll changes are not reaching the sponsor licence team.

In these circumstances, correcting only the Certificate that first exposed the problem may leave other compliance risks unresolved.

 

12. Consider whether the error exposes a training problem

Certificate errors can provide useful evidence about where sponsor licence training needs to be improved.

Relevant personnel may include:

• the Authorising Officer;
• Level 1 Users;
• HR personnel;
• recruitment teams;
• payroll staff;
• line managers responsible for sponsored workers; and
• any internal mobility or immigration function.

Training should reflect the responsibilities of the individual. For example, payroll personnel may not need detailed SMS training, but they should understand when salary changes involving sponsored workers need to be escalated to the sponsor licence team.

 

13. Strengthen pre-assignment checking

One of the most effective ways to reduce Certificate errors is to introduce a structured pre-assignment review.

Before a CoS is assigned, the employer should consider checking:

1. worker identity details;
2. the correct immigration route;
3. the correct CoS type;
4. the genuine job duties;
5. the occupation code;
6. salary;
7. working hours;
8. employment start and end dates;
9. work location;
10. route-specific information;
11. the worker’s underlying eligibility where relevant; and
12. consistency with the employment contract and supporting records.

For higher-risk or complex sponsorship cases, a second-person review before assignment can provide an additional control.

 

14. What sponsor licence action could potentially follow compliance failures?

Where UKVI identifies sponsor non-compliance, the consequences depend on the nature and seriousness of the issues identified and the applicable sponsor guidance.

Potential sponsor action can include measures affecting the sponsor’s licence status and ability to sponsor workers.

The important distinction for CoS errors is that the existence of an individual mistake should not automatically be equated with a particular licence sanction.

The wider context matters, including:

• what the error involved;
• whether it affected substantive immigration compliance;
• whether similar errors occurred repeatedly;
• whether the sponsor had effective systems;
• whether the employer identified and corrected the problem;
• whether required reports were made;
• whether sponsored workers are actually being employed in accordance with the sponsorship arrangements; and
• what UKVI finds when assessing the sponsor’s wider compliance.

Employers facing actual Home Office compliance or enforcement action should assess the specific allegations and evidence rather than assuming that every CoS discrepancy has the same consequence.

 

15. CoS errors and sponsor licence risk: employer action test

Where a Certificate error is identified, employers should consider both the individual worker and the wider sponsor licence system:

Correct the Certificate → verify substantive compliance → document the correction → identify the cause → determine whether other workers are affected → improve the control → retain evidence of the remedial action.

The central point is that an isolated Certificate of Sponsorship error is not automatically a sponsor licence problem. Risk increases where inaccurate Certificates reveal repeated failures, material non-compliance or inadequate systems for controlling sponsorship.

Employers should therefore treat CoS errors not only as individual administrative issues but also as an opportunity to test whether their wider sponsor management systems are operating effectively.

 

 

 

 

 

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Section Q: DM CoS Error Test: Identity, Role, Route, Reward, Timing & Status

When an employer discovers an error on a Certificate of Sponsorship, the immediate question is often: “Can we correct this with a sponsor note, or do we need a new CoS?”

That question should not be answered by looking at the incorrect field in isolation.

A more reliable approach is to assess the Certificate across six connected areas: Identity, Role, Route, Reward, Timing and Status.

This provides employers with a structured method for determining what is wrong, whether the error affects substantive immigration eligibility and which corrective process should be considered.

 

1. Identity: Is the Certificate assigned to the correct worker?

The first check is whether the Certificate accurately identifies the person being sponsored.

Employers should verify:

• surname;
• given names;
• date of birth;
• nationality;
• passport or travel document information where relevant; and
• any other identifying information recorded on the CoS.

The sponsor should compare the Certificate with the worker’s current identity documentation rather than relying solely on information held within the employer’s HR system.

A minor isolated identity error may potentially be capable of correction through a sponsor note while the Certificate remains Assigned.

However, employers should apply the specific Home Office test involving nationality, date of birth and surname.

If incorrect information appears in more than one of these three fields, the error is significant. Where the Certificate has not already been used to support an immigration application, the sponsor should normally withdraw it and assign a replacement.

The Identity test is therefore:

Is this clearly the correct worker, and how many of the core identity fields are wrong?

 

2. Role: Does the Certificate accurately describe the genuine job?

The second check concerns the sponsored role.

The employer should compare the Certificate with the job the worker will actually perform.

Review:

• job title;
• job description;
• principal duties;
• level of responsibility;
• employment contract;
• internal job description;
• position within the organisation; and
• occupation code.

A minor drafting error in the job title is materially different from a Certificate that describes a different job from the one the worker will actually undertake.

The employer should ask:

If we ignore the wording currently on the CoS and examine the genuine job, does the occupation code still accurately reflect that role?

If the answer is no, the sponsor may be dealing with a significant occupation-code error rather than a simple job-description mistake.

 

3. Route: Has the correct sponsorship route and category been used?

The third check is the immigration route.

The employer should establish whether the worker has been sponsored under the correct route and, where relevant, the correct subcategory.

This review should include:

• the sponsorship route selected;
• the applicable subcategory;
• whether the sponsor licence covers that route;
• whether the worker and role qualify under the route;
• whether the correct type of CoS has been used; and
• whether the route-specific information on the Certificate is accurate.

The wrong route or subcategory is a significant error.

Where the worker has not already used the CoS to support an immigration application, the normal response is to identify the correct route, reassess eligibility, withdraw the incorrect Certificate and assign the appropriate replacement.

The Route test is:

Is this the immigration route under which this worker and this particular job should genuinely be sponsored?

 

4. Reward: Are the salary and working hours correct and compliant?

The fourth check concerns remuneration and working hours.

The employer should verify:

• the salary recorded on the Certificate;
• the worker’s genuine contractual salary;
• weekly working hours;
• the applicable occupation code;
• the relevant salary threshold;
• the applicable going rate where relevant;
• any salary option or permitted discount being relied on; and
• the worker’s actual payroll position where employment has started.

Home Office guidance permits salary and working hours to be amended or updated through a sponsor note while the Certificate remains Assigned.

However, the ability to correct these fields does not determine whether the worker is eligible.

The employer must recalculate the immigration position using the correct salary and correct hours.

The Reward test is therefore:

When the genuine salary and hours are used, does the worker still satisfy the applicable immigration requirements?

 

5. Timing: Are the employment dates correct, and when did the error or change occur?

The fifth check concerns timing.

The sponsor should review:

• the employment start date;
• the employment end date;
• the date the CoS was assigned;
• when the error was discovered;
• whether the worker has submitted an immigration application;
• whether UKVI has made a decision;
• when the worker actually started or is expected to start work; and
• whether there has been a subsequent change in circumstances.

Start and end dates can be amended through a sponsor note while the CoS remains Assigned.

But employers should distinguish between:

an incorrect date entered when the CoS was assigned;

and:

a date that was correct originally but subsequently changed.

Where immigration permission has already been granted, the sponsor may also need to consider the rules governing delayed start dates and any associated reporting duties.

The Timing test is:

Was the information wrong originally, or has the position genuinely changed since the Certificate was assigned?

 

6. Status: What has happened to the CoS and the immigration application?

The final check is status, and this is one of the most important parts of the assessment.

Employers should establish separately:

1. the status displayed for the Certificate in the Sponsor Management System;
2. whether the worker has submitted their immigration application; and
3. whether UKVI has made a decision.

These should not be treated as the same question.

In particular, a Certificate can continue to display as Assigned after the worker has submitted an immigration application and while that application is awaiting a decision.

Once UKVI grants or refuses the application, the Certificate will generally show as Used.

The Status test is therefore:

What does the SMS show, has the worker applied, and has UKVI made a decision?

 

7. Apply the six tests together

The six checks should not be performed independently and then forgotten. They interact.

For example, an employer may initially identify a salary error.

The Reward test may then reveal that the corrected salary is below the requirement associated with the occupation code.

The Role test may subsequently show that the occupation code itself is wrong.

The Route test may identify that the worker has been sponsored under an inappropriate category.

The Status test may then establish that the worker has already submitted their application.

What appeared initially to be a simple salary correction has therefore become a materially different immigration issue.

This is why employers should review the Certificate as a whole rather than correcting individual fields mechanically.

 

8. The DM six-part CoS error diagnostic

Employers can summarise the assessment as follows:

Test	Question	What to check
Identity	Is this clearly the correct worker?	Name, surname, nationality, date of birth and identity documentation.
Role	Does the CoS accurately reflect the genuine job?	Duties, job description, occupation code and actual role.
Route	Has the correct sponsorship route been selected?	Route, subcategory, sponsor authorisation and CoS type.
Reward	Are salary and hours accurate and compliant?	Salary, working hours, occupation requirements and actual pay.
Timing	Was the information wrong originally or did it change later?	Start/end dates, chronology and subsequent changes.
Status	How far has the sponsorship and application progressed?	SMS status, application submission and UKVI decision.

 

9. Determine the correction mechanism only after completing the diagnostic

Once the employer has worked through Identity, Role, Route, Reward, Timing and Status, it can determine the appropriate corrective pathway.

The broad framework is:

Assigned CoS + permitted amendment or minor error:
A sponsor note may be appropriate.

Significant error + worker has not submitted an application:
The employer should normally withdraw the incorrect CoS and assign a replacement.

Worker has submitted an application but UKVI has not made a decision:
The Certificate may still display as Assigned. The sponsor should assess the effect on the pending application carefully rather than assuming that withdrawal or a sponsor note automatically resolves the position.

UKVI has made a decision:
The Certificate will generally show as Used. The employer should consider the immigration decision, the worker’s actual employment position and any applicable reporting or corrective requirements.

 

10. Add a seventh practical question: Is the error isolated?

Once the individual case has been assessed, employers should ask one further practical question:

Could the same error exist elsewhere in our sponsored workforce?

For example:

• Was the same occupation code used for several similar roles?
• Was the same salary calculation method applied to other workers?
• Did the same Level 1 User assign other Certificates using the same process?
• Was an incorrect job-description template used repeatedly?
• Are salary changes reaching the sponsor licence team?
• Are HR and sponsorship records being reconciled?

If the answer suggests a systemic problem, the employer should consider a wider review rather than limiting remedial action to the worker whose Certificate first exposed the issue.

 

11. DM Certificate of Sponsorship error decision sequence

A practical decision sequence for employers is:

Identify → Verify → Classify → Check Status → Reassess Eligibility → Correct → Record → Prevent.

1. Identify: What exactly is wrong?
2. Verify: What is the correct information and what evidence supports it?
3. Classify: Is it a permitted amendment, minor error or significant error?
4. Check Status: Is the CoS Assigned or Used, has the worker applied and has UKVI decided the application?
5. Reassess Eligibility: Do the worker and role remain compliant when the correct facts are used?
6. Correct: Use the appropriate sponsor note, withdrawal and replacement, reporting or other corrective process.
7. Record: Keep an audit trail explaining the error and action taken.
8. Prevent: Identify the cause and improve the employer’s sponsorship controls.

This approach prevents the correction mechanism from becoming the starting point. The first priority should always be to establish the correct facts and understand their immigration significance.

 

12. The central CoS error rule for employers

When an error is discovered, employers should avoid asking only:

“Can we add a sponsor note?”

The more useful questions are:

Who is being sponsored? What job are they genuinely doing? Under which route? For what salary and hours? When did the error or change occur? And how far has the immigration process progressed?

Once those six questions have been answered, the employer is in a much stronger position to determine whether the Certificate can be corrected, needs to be replaced or requires more detailed immigration and sponsor compliance action.

 

 

 

 

 

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Section R: Certificate of Sponsorship Error Checklist

When an employer discovers an error on a Certificate of Sponsorship, it should avoid making an immediate correction before establishing exactly what has happened.

A structured review helps prevent a minor error from becoming a larger sponsorship problem and reduces the risk of using the wrong corrective mechanism.

The following checklist can be used by Authorising Officers, Level 1 Users, HR teams and other personnel responsible for sponsor licence compliance.

 

1. Stop and identify the exact error

Start by identifying precisely what information is wrong.

Do not rely on a general description such as “the CoS is incorrect”. Record the specific field, the information currently shown and the information believed to be correct.

Check whether the error concerns:

• the worker’s name;
• surname;
• date of birth;
• nationality;
• passport or identity information;
• immigration route or subcategory;
• type of Certificate;
• occupation code;
• job title;
• job description or duties;
• salary;
• working hours;
• employment start date;
• employment end date;
• work location; or
• other information recorded on the Certificate.

Once one error has been identified, review the entire Certificate rather than assuming that it is the only mistake.

 

2. Verify the correct information

Do not replace incorrect information with another unverified figure, date or description.

The correct position should be checked against reliable evidence.

Depending on the error, this may include:

• the worker’s passport;
• immigration documents;
• employment contract;
• offer letter;
• approved job description;
• recruitment records;
• salary approval;
• payroll information;
• working-hours records;
• organisational charts;
• internal HR records; and
• communications confirming employment dates or other arrangements.

The sponsor should be able to explain how it established that the replacement information is correct.

 

3. Check the worker’s identity details together

If the error concerns personal information, check the worker’s core identity details as a group.

In particular, verify:

1. nationality;
2. date of birth; and
3. surname.

An isolated minor error may potentially be capable of correction through a sponsor note while the CoS remains Assigned.

If incorrect information appears in more than one of nationality, date of birth and surname, the error is significant. Where the Certificate has not already been used to support an immigration application, the normal approach is to withdraw the incorrect CoS and assign a replacement.

 

4. Check the genuine role and occupation code

If the error concerns the job, do not review the Certificate wording in isolation.

Check the genuine role against:

• actual duties;
• job description;
• job title;
• employment contract;
• level of responsibility;
• position within the organisation; and
• occupation code.

The occupation code should follow the genuine duties of the role.

If the review shows that the wrong occupation code was used, treat this as a significant error rather than attempting to preserve the original Certificate by rewriting the job description.

 

5. Check the immigration route and CoS type

Confirm that the Certificate was assigned under the correct sponsorship route and subcategory.

Check:

• the immigration route;
• the relevant subcategory;
• whether the sponsor licence covers the route;
• whether the worker and role qualify under it;
• whether the correct type of CoS has been used; and
• whether any route-specific information is accurate.

The wrong route or subcategory is a significant error and should not normally be dealt with simply by adding a sponsor note.

 

6. Check salary and working hours together

Where either salary or working hours is incorrect, verify both.

Check:

• contractual salary;
• salary recorded on the CoS;
• weekly working hours;
• occupation code;
• applicable salary threshold;
• going rate where relevant;
• any permitted salary option or discount relied on;
• employment contract; and
• actual payroll where employment has started.

Salary and working hours can be amended or updated through a sponsor note while the CoS remains Assigned.

However, the employer must separately confirm that the worker remains eligible when the correct salary and hours are used.

 

7. Establish whether the information was wrong originally or changed later

This distinction should be established before using the Sponsor Management System.

Ask:

Was the information incorrect when the CoS was assigned?

or:

Was it correct when the CoS was assigned but subsequently changed?

This can be particularly important for:

• salary;
• working hours;
• job duties;
• work location;
• start date;
• end date; and
• personal circumstances.

An original error and a subsequent change can engage different sponsorship processes and reporting obligations.

 

8. Check the CoS status

Check the current status of the Certificate in the Sponsor Management System.

Depending on the stage reached, the Certificate may show a status such as Assigned or Used.

However, do not use the SMS status as the only test of whether the worker has submitted an immigration application.

A Certificate can continue to show as Assigned while the worker’s application is awaiting a UKVI decision.

 

9. Ask whether the worker has submitted their immigration application

This should be established separately from the CoS status.

Confirm directly whether:

• the worker has not yet applied;
• the worker has submitted the application and it is pending;
• UKVI has granted the application; or
• UKVI has refused the application.

This distinction can determine whether withdrawal and replacement remains an appropriate option.

Do not withdraw an apparently Assigned Certificate merely because the SMS still shows Assigned without first establishing whether the worker has already used it to support an application.

 

10. Classify the error

Once the facts have been verified, determine which broad category applies.

Permitted amendment or minor error:
A sponsor note may be available while the CoS remains Assigned.

Significant error:
Where the worker has not used the Certificate to support an application, withdrawal and replacement will normally be required.

Application already submitted:
The employer should assess the effect on the pending application rather than assuming that the pre-application correction process can simply be followed.

Application already decided:
The CoS will generally show as Used and the employer should consider the immigration decision, actual employment arrangements and any relevant reporting or corrective obligations.

 

11. Check whether a sponsor note is permitted

While the Certificate remains Assigned, current sponsor guidance permits sponsor notes to be used to:

• amend the employment start date;
• amend the employment end date;
• amend or update salary;
• amend or update working hours;
• correct minor errors; and
• provide additional information or clarification.

The employer should ensure that the note clearly explains what information was incorrect and what the correct position is.

A sponsor note should not be used to disguise a significant error or to create an inaccurate chronology.

 

12. Check whether withdrawal and replacement is required

Significant errors can require the original Certificate to be withdrawn and a new Certificate assigned where the worker has not already used the original CoS to support an application.

Examples include:

• wrong occupation code;
• wrong immigration route or subcategory; and
• incorrect information in more than one of nationality, date of birth and surname.

Before withdrawing the Certificate, confirm that the worker has not already submitted an immigration application relying on it.

 

13. Check CoS allocation before withdrawing an Undefined CoS

If an Undefined Certificate needs to be replaced, check the sponsor’s available allocation before taking action.

Withdrawing an Assigned Undefined CoS does not return that Certificate to the sponsor’s allocation.

The employer should therefore establish whether sufficient allocation remains available to assign the replacement.

If it does not, additional allocation may need to be obtained where the relevant sponsorship arrangements permit this.

 

14. Check the fee and Immigration Skills Charge position

Replacement Certificates can create additional cost.

The employer should consider:

• the CoS assignment fee for the replacement Certificate;
• the fact that the original CoS assignment fee is not refunded merely because the Certificate is cancelled or withdrawn;
• whether the Immigration Skills Charge applies;
• whether an Immigration Skills Charge refund is due in relation to the withdrawn Certificate; and
• whether a further Immigration Skills Charge payment is required for the replacement.

The CoS assignment fee and Immigration Skills Charge should be treated separately because different payment and refund rules apply.

 

15. Reassess immigration eligibility using the correct facts

Do not stop once the administrative correction mechanism has been identified.

Reassess the worker and role using the correct information.

Depending on the error, check:

• route eligibility;
• occupation-code eligibility;
• salary requirements;
• going rate requirements;
• working-hours calculations;
• route-specific requirements;
• the genuineness of the role; and
• any other requirement affected by the correction.

A technically successful correction to the sponsorship record cannot cure an underlying failure to meet the immigration requirements.

 

16. Check the immigration application for the same error

If the worker has already applied, establish whether the incorrect information was also included in the immigration application.

Compare:

• the original CoS;
• the worker’s application;
• the corrected information; and
• the supporting evidence.

Adding a sponsor note does not automatically mean that information already submitted within the worker’s immigration application has itself been amended.

Where the discrepancy is material, the position should be assessed before assuming that correcting the sponsorship record is sufficient.

 

17. Record the corrective action

Maintain an internal record of the error and how it was resolved.

The audit trail should include:

• the CoS reference;
• the error identified;
• the correct information;
• supporting evidence;
• when the error was discovered;
• the worker’s application status;
• the corrective mechanism used;
• any sponsor note;
• any withdrawal and replacement;
• the replacement CoS reference;
• any relevant SMS report;
• who authorised the action; and
• any further compliance steps taken.

The record should preserve the genuine chronology rather than retrospectively reconstructing events.

 

18. Check whether other sponsored workers are affected

Finally, determine whether the error could be systemic.

Ask whether:

• the same occupation code was used for similar roles;
• the same salary methodology was applied elsewhere;
• the same job-description template was used;
• the same SMS user assigned other Certificates;
• other Certificates contain the same data-entry problem;
• HR and payroll information is being communicated properly to the sponsor team; or
• the error exposes a wider weakness in pre-assignment checking.

If other workers may be affected, consider a broader sponsor compliance review.

 

19. Certificate of Sponsorship error checklist: quick reference

Before closing a CoS error case, the employer should be able to answer yes to each relevant question:

• Have we identified exactly what is wrong?
• Have we verified the correct information?
• Have we checked the entire CoS for additional errors?
• Have we confirmed the worker’s identity details?
• Have we verified the genuine job and occupation code?
• Have we confirmed the correct sponsorship route and CoS type?
• Have we checked salary and working hours?
• Have we established whether this was an original error or subsequent change?
• Have we checked the current CoS status?
• Have we separately confirmed whether the worker has applied?
• Have we established whether UKVI has made a decision?
• Have we classified the error as minor, permitted amendment or significant?
• Have we selected the correct correction mechanism?
• Have we reassessed immigration eligibility using the correct facts?
• Have we considered CoS allocation and fee implications where relevant?
• Have we checked whether the immigration application contains the same error?
• Have we documented the corrective action?
• Have we identified why the error occurred?
• Have we checked whether other sponsored workers could be affected?

A Certificate of Sponsorship error should only be treated as resolved when the employer has addressed both sides of the issue: the inaccurate sponsorship record and the immigration or compliance consequences of the correct information.

 

 

 

 

 

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Section S: Preventing Future Certificate of Sponsorship Errors

Correcting a Certificate of Sponsorship error deals with the immediate problem. Employers should also consider why the mistake occurred and whether their sponsorship procedures need to be strengthened.

A robust CoS process should make errors difficult to introduce and easier to identify before the Certificate is assigned. This is particularly important because assignment can trigger fees, use sponsor allocation and provide the worker with the reference needed for an immigration application.

The objective should therefore be to move from reactive correction to preventative control.

 

1. Introduce a formal pre-assignment CoS review

A Certificate should not be assigned immediately after the information has been entered into the Sponsor Management System.

Employers should introduce a defined review stage between preparation and assignment.

The reviewer should check the proposed Certificate against the underlying evidence and confirm that the sponsorship information accurately reflects the worker and the genuine employment arrangements.

The review should cover at least:

• worker identity;
• immigration route;
• CoS type;
• job title;
• job description;
• occupation code;
• salary;
• working hours;
• start date;
• end date;
• work location;
• route-specific information; and
• any additional information required for the sponsorship.

Assignment should take place only once the reviewer is satisfied that the information is accurate.

 

2. Use a two-person check for higher-risk Certificates

For more complex sponsorship cases, employers should consider separating preparation and approval.

For example:

Level 1 User A prepares the CoS → Level 1 User B or another appropriately authorised reviewer checks the information → CoS is assigned only after approval.

A second-person review can be particularly valuable where the Certificate involves:

• a difficult occupation-code assessment;
• salary calculations requiring careful analysis;
• unusual working patterns;
• a less frequently used sponsorship route;
• complex immigration history;
• multiple work locations;
• a senior or strategically important appointment; or
• circumstances where an error could significantly delay recruitment.

The employer should decide which cases require enhanced checking as part of its sponsor governance arrangements.

 

3. Verify identity information directly from the worker’s documents

Personal details should be taken from reliable identity documentation rather than copied from informal recruitment records.

Before assignment, check:

• full name;
• surname;
• date of birth;
• nationality;
• passport details where relevant; and
• any other identity information required for the Certificate.

Names can be particularly vulnerable to errors where the employer’s recruitment or HR system uses shortened names, preferred names or different naming conventions.

The CoS information should be checked against the appropriate identity documentation before assignment.

 

4. Determine the immigration route before preparing the CoS

The immigration route should be established as part of the case assessment rather than selected while completing the Certificate.

Before a Level 1 User begins the assignment process, the employer should already know:

• which route is being used;
• whether the sponsor licence covers that route;
• whether the worker qualifies;
• whether the job qualifies;
• which type of CoS is required; and
• which route-specific requirements need to be addressed.

This reduces the risk of the Level 1 User selecting an apparently similar but incorrect route or subcategory within the SMS.

 

5. Determine the occupation code from the genuine job

The occupation code should be selected by analysing the actual role rather than by searching for the closest matching job title.

The assessment should consider:

• the worker’s principal duties;
• the level and nature of the role;
• responsibility and seniority;
• the employer’s internal job description;
• the organisational context; and
• the applicable occupation classification.

Employers should avoid selecting an occupation code because it produces a more convenient salary requirement or immigration outcome.

The code should follow the genuine role.

 

6. Maintain an occupation-code decision record

For roles sponsored repeatedly, employers may benefit from maintaining an internal record of occupation-code assessments.

This can record:

• job title;
• department;
• principal duties;
• occupation code used;
• reason for selecting the code;
• salary requirements considered;
• date of assessment; and
• date on which the classification was last reviewed.

This can improve consistency while avoiding the opposite problem of automatically reusing an old occupation code without checking whether the role or applicable rules have changed.

 

7. Verify salary before entering it on the CoS

The salary entered on the Certificate should come from the final approved employment arrangements.

The sponsorship team should not rely on provisional recruitment figures where the final package has changed.

Before assignment, compare:

• the salary approved by the business;
• the offer letter;
• the employment contract;
• the salary entered on the CoS;
• the worker’s contracted hours; and
• the salary figure used for the immigration eligibility assessment.

If different figures appear across these records, resolve the discrepancy before assigning the Certificate.

 

8. Check salary and working hours together

Salary and working hours should not be reviewed as entirely separate fields.

The sponsor should verify that the hours recorded on the Certificate accurately reflect the contractual arrangements and that the salary assessment has been undertaken using the appropriate figures.

A pre-assignment check should therefore ask:

What is the worker being paid, for how many hours, under which occupation code and against which applicable salary requirement?

This is more reliable than simply confirming that the salary field contains the number shown in the employment contract.

 

9. Check the job description against the employment contract

The job description on the CoS should accurately reflect the work the sponsored worker will genuinely perform.

Before assignment, compare the Certificate with:

• the employment contract;
• the approved job description;
• the recruitment specification;
• the occupation-code assessment; and
• the hiring manager’s understanding of the role.

Material differences should be resolved before the Certificate is assigned.

This is particularly important where job descriptions have been adapted from previous vacancies or standard templates.

 

10. Confirm employment dates immediately before assignment

Recruitment timetables can change between the initial immigration assessment and CoS assignment.

The sponsor should therefore reconfirm the intended employment dates immediately before assignment.

Check:

• the proposed start date;
• the intended end date where applicable;
• the worker’s notice period;
• anticipated immigration processing;
• the contractual position; and
• any relevant business or onboarding timetable.

Where dates subsequently change, the sponsor should record that as a genuine later development rather than altering internal records to suggest that the new date was always intended.

 

11. Avoid copying previous Certificates without a full review

Reusing information from a previous sponsorship case can save administrative time but creates a significant risk of inherited errors.

Common problems can include carrying forward:

• the wrong job description;
• an outdated occupation code;
• another worker’s employment dates;
• old salary information;
• incorrect working hours;
• the wrong work location;
• outdated route information; or
• information specific to another worker.

Where templates or previous Certificates are used as administrative aids, every field should still be independently verified for the new worker.

 

12. Control who can assign Certificates

Access to sponsorship functions should be appropriately controlled.

Employers should know:

• who has Level 1 User access;
• what sponsorship functions each user performs;
• whether each user has received appropriate training;
• whether access remains necessary;
• who reviews complex cases; and
• how responsibility is allocated when key personnel are absent.

SMS access should not be treated simply as another general HR system permission.

The individuals using sponsorship functions should understand the immigration and compliance significance of the information they enter.

 

13. Train Level 1 Users on error recognition as well as SMS operation

Knowing how to operate the Sponsor Management System is not the same as knowing whether the information being entered is legally correct.

Training should help relevant users recognise issues involving:

• occupation codes;
• salary;
• working hours;
• sponsorship routes;
• CoS types;
• identity information;
• start and end dates;
• sponsor notes;
• withdrawal and replacement;
• reporting obligations; and
• situations that should be escalated before action is taken.

Users should also understand the distinction between correcting an original error and reporting a genuine subsequent change.

 

14. Create an escalation rule for uncertain cases

Not every sponsorship issue should be resolved by the individual preparing the Certificate.

Employers should define circumstances in which assignment must stop pending further review.

Examples may include uncertainty about:

• the correct occupation code;
• the applicable salary requirement;
• whether a salary concession can be relied on;
• the correct immigration route;
• the correct CoS type;
• the worker’s immigration history;
• unusual employment arrangements; or
• inconsistencies between the documents provided.

A clear escalation process can prevent uncertainty from being converted into an incorrect Certificate.

 

15. Connect recruitment, HR, payroll and sponsor licence processes

Many CoS errors arise because sponsorship information is held across different business functions.

Recruitment may know the proposed role. HR may hold the contract. Payroll may hold the actual salary. A central immigration team may operate the SMS.

The sponsor should ensure that these functions communicate effectively.

There should be a reliable process for communicating matters such as:

• changes to salary;
• changes to working hours;
• changes to job duties;
• changes to work location;
• delayed start dates;
• early termination;
• absence information where relevant;
• organisational changes; and
• other developments affecting sponsored workers.

This is important both before CoS assignment and throughout the worker’s sponsorship.

 

16. Keep evidence of the pre-assignment review

Employers should consider retaining evidence that the Certificate was checked before assignment.

This might take the form of:

• a CoS approval checklist;
• an electronic approval workflow;
• a signed internal review form;
• a case-management record;
• an email approval; or
• another auditable internal process.

The purpose is not simply to create paperwork. The record should demonstrate that the employer has an active control designed to identify inaccurate sponsorship information before it reaches the SMS.

 

17. Audit assigned Certificates periodically

Employers should not assume that a pre-assignment process will eliminate every mistake.

Periodic internal audits can identify patterns that are not obvious from individual cases.

A sample review can compare assigned Certificates against:

• personnel records;
• contracts;
• job descriptions;
• occupation-code assessments;
• salary records;
• payroll;
• working hours;
• work locations;
• right to work records; and
• SMS reporting history.

Where discrepancies are identified, the employer should determine whether they are isolated errors or evidence of a wider process weakness.

 

18. Record errors and use them to improve the system

Sponsors can maintain an internal error or corrective-action log.

This can record:

• the type of error;
• how it occurred;
• when it was discovered;
• the corrective action taken;
• whether the worker’s application was affected;
• whether other workers were reviewed;
• the root cause;
• the person responsible for remedial action; and
• the control introduced to prevent recurrence.

Over time, this can help identify recurring weaknesses such as occupation-code errors, incorrect salary data or poor communication between HR and the sponsorship team.

 

19. Review sponsorship controls when the rules change

A process that was compliant when introduced may become outdated as the Immigration Rules, sponsor guidance, occupation classifications, salary requirements or SMS procedures change.

Employers should therefore review:

• CoS templates;
• internal checklists;
• salary assessment tools;
• occupation-code guidance;
• training materials;
• approval processes; and
• internal immigration policies

when material sponsorship requirements change.

Outdated internal guidance can create systematic errors even where staff follow the employer’s process correctly.

 

20. Build CoS accuracy into sponsor licence governance

Certificate accuracy should form part of the employer’s wider sponsor licence governance rather than being treated solely as the responsibility of the person operating the SMS.

Effective governance can include:

• clear ownership by the Authorising Officer;
• defined Level 1 User responsibilities;
• documented sponsorship procedures;
• pre-assignment controls;
• regular training;
• internal auditing;
• error escalation;
• corrective-action tracking; and
• periodic review of sponsor compliance systems.

This helps create evidence that the employer is actively managing its sponsorship responsibilities rather than relying on individual users to make case-by-case decisions without oversight.

 

21. CoS error prevention framework

A practical prevention framework is:

Assess → Verify → Review → Approve → Assign → Monitor → Audit → Improve.

1. Assess: Establish the correct immigration route and sponsorship requirements.
2. Verify: Check worker and employment information against reliable evidence.
3. Review: Check the complete proposed Certificate for accuracy and eligibility.
4. Approve: Obtain the appropriate internal approval before assignment.
5. Assign: Assign the Certificate only when the information has been confirmed.
6. Monitor: Ensure subsequent changes involving sponsored workers reach the sponsorship team.
7. Audit: Periodically compare sponsorship records with the employer’s actual HR and payroll records.
8. Improve: Use errors and audit findings to strengthen the sponsor’s controls.

The strongest approach to Certificate of Sponsorship errors is not simply knowing how to correct them. It is maintaining systems that prevent inaccurate Certificates from being assigned in the first place, identify mistakes quickly when they occur and provide a clear audit trail of the employer’s response.

 

 

 

 

 

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Section T: When Employers Should Seek Advice About Certificate of Sponsorship Errors

Many straightforward Certificate of Sponsorship errors can be dealt with through the appropriate Sponsor Management System process. However, employers should be cautious where the error affects immigration eligibility, the worker has already submitted an application, UKVI has already made a decision or it is unclear whether the Certificate can safely be corrected.

The objective is not simply to make the information on the CoS look correct. The employer needs to ensure that the corrective action itself does not create a further immigration or sponsor compliance problem.

Where the position is uncertain, advice should ideally be obtained before withdrawing the Certificate, assigning a replacement, adding potentially misleading information to a sponsor note or taking action that could affect a pending immigration application.

 

1. The worker has already submitted their immigration application

Employers should consider obtaining advice where a material CoS error is discovered after the worker has submitted their immigration application.

This is particularly important because the Certificate may continue to display as Assigned while UKVI is considering the application.

The employer therefore needs to distinguish between:

• the status displayed in the Sponsor Management System;
• whether the CoS has already been used to support an application; and
• whether UKVI has made a decision.

The sponsor should not assume that it can withdraw the Certificate simply because it still shows as Assigned.

The effect of the error on the pending immigration application should be considered before corrective action is taken.

 

2. The error affects the occupation code

A wrong occupation code should normally be treated as a significant error.

Advice may be appropriate where there is uncertainty about:

• which occupation code accurately reflects the role;
• whether the role is eligible for sponsorship;
• whether the corrected occupation code changes the salary requirement;
• whether the worker satisfies the applicable going rate;
• whether a salary option or discount remains available;
• whether the job description accurately reflects the genuine duties; or
• how the error affects an application that has already been submitted.

The employer should avoid selecting an alternative occupation code simply because it produces a more favourable immigration outcome.

The correct code should be determined from the genuine job.

 

3. The corrected salary may not satisfy the immigration requirements

Salary can be amended or updated through a sponsor note while the CoS remains Assigned, but the ability to amend the salary does not establish that the worker remains eligible.

Employers should consider advice where the corrected salary may:

• fall below the applicable salary threshold;
• fall below the relevant going rate;
• affect a salary concession or discount;
• interact with the worker’s contracted hours;
• change the immigration eligibility assessment; or
• differ materially from the salary stated in the worker’s application.

The sponsorship position should be reassessed using the genuine salary rather than the incorrect figure originally entered on the Certificate.

 

4. The working hours are wrong

An error involving working hours can affect the assessment of salary and should not automatically be treated as an insignificant administrative mistake.

Advice may be appropriate where correcting the hours changes:

• the salary calculation;
• the applicable going-rate assessment;
• the worker’s eligibility;
• the contractual arrangements; or
• the consistency between the CoS, employment contract and immigration application.

Employers should assess salary and hours together rather than correcting one field without checking the other.

 

5. The wrong sponsorship route or category was selected

The wrong sponsorship route or subcategory is a significant error because it can affect the entire legal basis of the sponsorship.

Advice should be considered where the employer is uncertain about:

• the correct immigration route;
• whether its sponsor licence covers that route;
• whether the worker qualifies under the correct route;
• whether the role is eligible;
• which type of CoS is required;
• whether the worker has already applied under the incorrect route; or
• how the error should now be remedied.

A sponsor note should not be used as a substitute for resolving a significant route or category error.

 

6. Multiple identity details are incorrect

Minor personal-detail errors may be capable of correction through a sponsor note while the Certificate remains Assigned.

However, an employer should take particular care where incorrect information appears in more than one of the following:

• nationality;
• date of birth; and
• surname.

This is treated as a significant error under the sponsor guidance.

Where the worker has not used the Certificate to support an immigration application, the normal approach is to withdraw the incorrect CoS and assign a replacement.

If the worker has already applied, the employer should assess the position before taking action.

 

7. The job on the CoS does not match the job the worker will actually perform

A material discrepancy between the sponsored role and the worker’s genuine duties should be investigated carefully.

The employer should consider advice where it is unclear whether the discrepancy represents:

• a drafting error;
• an incorrect occupation code;
• a genuine subsequent change in duties;
• a different role from the one originally sponsored; or
• a wider eligibility or compliance issue.

The employer should not retrospectively rewrite the job to fit the Certificate.

The correct immigration analysis should begin with the work the employee will genuinely perform.

 

8. The worker’s start date has changed significantly

Start and end dates can be amended through a sponsor note while the CoS remains Assigned.

However, employers should distinguish between an original date error and a genuine subsequent delay.

Advice may be appropriate where:

• the worker has already applied;
• permission has already been granted;
• the worker cannot start within the period permitted by the sponsor guidance;
• the reason for the delayed start is unusual;
• it is unclear whether an SMS report is required; or
• the delay could affect the continuation of sponsorship.

Where immigration permission has been granted, the employer should consider the applicable delayed-start requirements rather than treating the issue solely as a correction to the original Certificate.

 

9. UKVI has already granted the worker’s application

Where UKVI has made a decision, the Certificate will generally show as Used.

If a material error is discovered after the worker has been granted immigration permission, the employer should not attempt to deal with the matter as though the Certificate were still at the pre-application stage.

The sponsor should establish:

• what information was wrong;
• what the correct position is;
• whether the worker qualified on the correct facts;
• whether the worker is performing the sponsored role;
• whether the salary and hours are compliant;
• whether a report is required; and
• whether the discrepancy affects the worker’s immigration position or the sponsor’s compliance duties.

Material post-grant discrepancies should not simply be ignored because the application has already succeeded.

 

10. UKVI has refused the worker’s application

If an application has been refused and the decision refers to the CoS or sponsorship information, employers should review the refusal before assigning another Certificate.

Advice may be particularly important in determining:

• whether the CoS error caused or contributed to the refusal;
• whether the correct facts would satisfy the relevant immigration requirements;
• whether a fresh application is appropriate;
• whether a replacement CoS is required;
• whether any challenge to the decision is available; and
• whether the refusal exposes a wider sponsor compliance problem.

Simply assigning another Certificate without understanding the refusal can reproduce the same problem.

 

11. The employer is unsure whether to use a sponsor note or replace the CoS

Where the correct mechanism is unclear, the employer should resolve that uncertainty before making changes in the SMS.

This is particularly important where the issue could be characterised either as:

• a minor error;
• a permitted amendment;
• a significant error;
• a subsequent change in circumstances; or
• a substantive eligibility problem.

The distinction can determine whether the employer should add a sponsor note, withdraw and replace the Certificate, make a separate sponsor report or take another form of corrective action.

 

12. The employer is considering withdrawing an Assigned CoS

Before withdrawing a Certificate, the sponsor should establish whether the worker has already used it to support an immigration application.

The employer should not rely solely on the fact that the SMS displays the Certificate as Assigned.

Where the worker has not applied and withdrawal is appropriate, the employer should also consider:

• whether a replacement CoS is required;
• whether sufficient allocation is available;
• whether a Defined CoS is required instead;
• the replacement assignment fee;
• the Immigration Skills Charge position; and
• the effect on the worker’s intended immigration timetable.

Withdrawing an Assigned Undefined CoS does not return it to the sponsor’s allocation.

 

13. Several Certificates contain the same error

Where the same problem appears on multiple Certificates, the employer may be dealing with a systemic compliance issue rather than individual mistakes.

Examples can include:

• repeated use of an incorrect occupation code;
• incorrect salary calculations across a category of workers;
• systematically incorrect working hours;
• use of an inaccurate job-description template;
• repeated selection of the wrong sponsorship category;
• incorrect internal guidance; or
• errors made repeatedly by the same sponsorship process.

In these circumstances, the employer should consider reviewing the affected sponsored-worker population and its wider sponsorship systems.

 

14. The error is identified during a Home Office compliance visit or investigation

Employers should consider obtaining advice promptly where CoS discrepancies are identified during Home Office compliance activity.

The issue may extend beyond correcting the Certificate because UKVI may be assessing the effectiveness of the sponsor’s wider compliance systems.

The employer may need to consider:

• the scope of the discrepancy;
• the evidence supporting the correct position;
• whether other workers are affected;
• whether reporting obligations were met;
• whether the sponsored role and salary are compliant;
• the adequacy of internal sponsor controls; and
• how to respond to any Home Office requests for information.

Responses should be accurate, evidenced and consistent with the employer’s underlying records.

 

15. The error may affect the sponsor licence

Advice should also be considered where an error may indicate a wider sponsor compliance failure.

Potential warning signs include:

• repeated inaccurate Certificates;
• material discrepancies between CoS information and payroll;
• workers performing materially different roles;
• incorrect occupation codes used systematically;
• unreported changes affecting sponsored workers;
• poor sponsor record keeping;
• inadequate control over SMS users; or
• evidence that internal sponsorship procedures are not being followed.

The employer should consider both the immediate worker case and the potential exposure of the sponsor licence.

 

16. What information should be gathered before seeking advice?

Providing a clear factual record can make it easier to determine the appropriate corrective action.

Employers should consider gathering:

• a copy or details of the Certificate of Sponsorship;
• the current CoS status;
• the worker’s passport and relevant immigration information;
• confirmation of whether an application has been submitted;
• any UKVI application or decision information available to the employer;
• the employment contract;
• job description;
• occupation-code analysis;
• salary and working-hours information;
• payroll records where relevant;
• the intended and actual employment dates;
• details of the error;
• when and how the error was discovered; and
• any action already taken through the SMS.

The chronology is particularly important where the worker has already applied or the employment arrangements changed after the Certificate was assigned.

 

17. Act before the worker uses an incorrect CoS where possible

Where an error is identified before the immigration application is submitted, employers should address it before the worker proceeds.

This can preserve more straightforward corrective options and reduce the risk of inconsistent information being placed before UKVI.

The employer should therefore ensure that workers know to contact the sponsor if they identify a discrepancy on their Certificate information before submitting their application.

Where the issue is material, the worker should not be encouraged to apply first on the assumption that the employer can correct the sponsorship record afterwards.

 

18. Early advice can protect both the worker’s application and the sponsor licence

The most difficult CoS error cases are often those where several issues overlap.

For example:

Wrong occupation code → different salary requirement → worker has already applied → CoS still shows Assigned → employer considers withdrawal.

Each step affects the next.

Taking corrective action without understanding the full sequence can create additional problems for the worker’s application or the employer’s sponsor compliance position.

Employers should therefore seek advice where the error is material, the immigration application has progressed or the correct sponsorship response is uncertain.

The key is to establish the correct facts, preserve the chronology and determine the appropriate action before making an irreversible change to the sponsorship record.

 

 

 

 

 

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Section U: Certificate of Sponsorship Errors: FAQs

 

Can you correct a Certificate of Sponsorship after it has been assigned?

Yes. Certain information can be corrected or amended after a Certificate of Sponsorship has been assigned.

While the CoS remains Assigned, current sponsor guidance permits the sponsor to use a sponsor note to:

• amend the employment start date;
• amend the employment end date;
• amend or update salary;
• amend or update working hours;
• correct minor errors; and
• provide additional information or clarification.

Significant errors may instead require the Certificate to be withdrawn and replaced, provided it has not already been used to support an immigration application.

The employer should therefore identify the type of error and check the worker’s application status before taking action.

 

What is a sponsor note on a Certificate of Sponsorship?

A sponsor note allows an employer to add information to an Assigned Certificate of Sponsorship through the Sponsor Management System.

It can be used for specified amendments, correcting minor errors or providing additional information or clarification.

A sponsor note should clearly identify the information being corrected and state the accurate position. It should not be used to disguise a significant error or create an inaccurate account of what happened.

 

Can a sponsor note be used to change the salary?

Yes. Current sponsor guidance expressly allows salary to be amended or updated through a sponsor note while the Certificate remains Assigned.

The employer must nevertheless reassess the worker’s immigration eligibility using the correct salary.

If the corrected salary does not satisfy the applicable immigration requirements, the availability of the sponsor-note mechanism does not cure that underlying eligibility problem.

Employers should also distinguish between correcting a salary that was wrong when entered on the CoS and dealing with a genuine subsequent change to the worker’s salary.

 

Can working hours be corrected using a sponsor note?

Yes. Working hours can be amended or updated through a sponsor note while the Certificate remains Assigned.

However, employers should check whether the corrected hours affect the salary assessment.

Salary and working hours should therefore be reviewed together, particularly where the applicable immigration requirements depend on the relationship between pay, hours and the relevant occupation code.

 

Can the start date on a Certificate of Sponsorship be changed?

Yes. The employment start date can be amended through a sponsor note while the CoS remains Assigned.

The employer should first determine whether the original date was entered incorrectly or whether the date was correct when the Certificate was assigned but subsequently changed.

This distinction becomes particularly important once immigration permission has been granted, when the sponsor may need to consider the separate rules governing delayed start dates and sponsor reporting.

 

Can the employment end date be corrected?

Yes. Current sponsor guidance permits the employment end date to be amended through a sponsor note while the Certificate remains Assigned.

The employer should verify the genuine intended sponsorship period and consider whether changing the date has any wider implications for the sponsorship period, immigration application or applicable charges.

 

Can you change the occupation code using a sponsor note?

A wrong occupation code is a significant error and should not normally be treated as a minor correction that can simply be resolved through a sponsor note.

Where the worker has not yet used the Certificate to support an immigration application, the employer should normally establish the correct occupation code, reassess eligibility, withdraw the incorrect Certificate and assign an appropriate replacement.

The employer should determine the occupation code from the worker’s genuine duties rather than rewriting the job description to fit the code originally selected.

 

What happens if the wrong sponsorship route was selected?

Selecting the wrong sponsorship route or subcategory is a significant error.

Where the worker has not already used the Certificate to support an immigration application, the employer should normally identify the correct route, confirm that its sponsor licence covers that route, reassess eligibility and assign the appropriate replacement Certificate.

A sponsor note should not be used to convert a Certificate assigned under the wrong sponsorship route into the Certificate that should originally have been assigned.

 

What happens if the worker’s name is wrong on the CoS?

A minor error in the worker’s name may be capable of correction through a sponsor note while the Certificate remains Assigned.

However, employers should check all of the worker’s core identity information rather than looking only at the spelling mistake that first brought the problem to their attention.

In particular, check the worker’s surname, nationality and date of birth against their identity documentation.

 

What if the worker’s date of birth or nationality is wrong?

The employer should verify the worker’s details against reliable identity documentation and determine how many of the core identity fields are incorrect.

Home Office sponsor guidance treats the position as a significant error where incorrect information appears in more than one of the following:

• nationality;
• date of birth; and
• surname.

Where that significant-error test is met and the Certificate has not already been used to support an immigration application, the normal approach is to withdraw the incorrect Certificate and assign a replacement.

 

Can you withdraw a Certificate of Sponsorship after it has been assigned?

A sponsor can withdraw an Assigned Certificate where it has not yet been used to support an immigration application.

Employers should therefore establish whether the worker has applied before withdrawing the Certificate.

The fact that the Sponsor Management System still displays the Certificate as Assigned does not, by itself, establish that no application has been made.

 

Does an Assigned CoS mean the worker has not applied yet?

No.

This is an important distinction for employers dealing with CoS errors.

A Certificate will generally continue to show as Assigned while the worker’s immigration application is awaiting a decision.

The employer should therefore check separately:

1. the status displayed in the SMS;
2. whether the worker has submitted their application; and
3. whether UKVI has made a decision.

Do not withdraw a Certificate solely because it continues to display as Assigned.

 

When does a Certificate of Sponsorship show as Used?

A Certificate will generally show as Used after UKVI has made a decision to grant or refuse the immigration application supported by that Certificate.

A Used Certificate cannot normally be used to support another immigration application.

If a material error is discovered after the CoS has become Used, the employer should assess the immigration decision and any applicable sponsor reporting or corrective requirements rather than attempting to treat the Certificate as though it were still at the pre-application stage.

 

What if the worker has already applied using the incorrect CoS?

The employer should first establish whether the application remains pending or UKVI has already made a decision.

If the application is pending, the Certificate may still display as Assigned.

Where the guidance permits the relevant amendment, a sponsor note may still be available while the Certificate remains Assigned. However, the employer must also consider the information already submitted in the worker’s immigration application.

Adding a sponsor note should not automatically be assumed to amend the worker’s application itself.

Material discrepancies should therefore be assessed carefully before further action is taken.

 

What if the visa has already been granted?

If UKVI has already granted the application, the CoS will generally show as Used.

The employer should establish:

• what information was incorrect;
• what the correct position is;
• whether the worker satisfied the immigration requirements on the correct facts;
• whether the worker’s actual job, salary and hours are compliant;
• whether the issue represents an original error or a subsequent change; and
• whether any sponsor reporting or other corrective action is required.

A material error should not simply be ignored because immigration permission has already been granted.

 

Can a Certificate of Sponsorship error cause a visa refusal?

Potentially, but a CoS error does not automatically result in refusal.

The important question is whether the correct facts satisfy the requirements of the relevant immigration route.

For example, an incorrect salary figure may be capable of correction, but if the genuine salary falls below the applicable immigration requirement, the corrected facts may reveal a substantive eligibility problem.

Employers should therefore distinguish between the administrative error and the immigration consequences of the correct information.

 

Do you have to pay for another CoS if the original Certificate is wrong?

Where an incorrect Certificate has to be withdrawn and a replacement assigned, a further CoS assignment fee may be payable.

The original CoS assignment fee is not refunded merely because the Certificate is cancelled or withdrawn.

The employer should also consider separately whether the Immigration Skills Charge applies and whether any refund is due in relation to the original Certificate.

 

Does withdrawing an Undefined CoS return it to the sponsor’s allocation?

No. Withdrawing an Assigned Undefined Certificate does not return it to the sponsor’s available allocation.

If a replacement Undefined CoS is required, the employer should check whether sufficient allocation remains before withdrawing the incorrect Certificate.

Where sufficient allocation is not available, the sponsor may need to consider the applicable process for obtaining additional allocation.

 

Is the Immigration Skills Charge refunded if a CoS is withdrawn?

The Immigration Skills Charge is governed by separate payment and refund rules from the CoS assignment fee.

Where an Immigration Skills Charge has been paid and the relevant Certificate is withdrawn before it is used to support an immigration application, an applicable Immigration Skills Charge refund will generally be due.

Employers should assess the circumstances against the current refund rules rather than assuming that withdrawal produces the same refund treatment for every sponsorship-related payment.

 

Can a worker have more than one Certificate of Sponsorship?

A worker can normally only have one Certificate of Sponsorship assigned for use in an immigration application at any given time.

Employers should therefore take care when replacing an incorrect Certificate and ensure that the original and replacement Certificates are dealt with through the correct process.

There are specific exceptions within the sponsor guidance. For example, the guidance makes provision for certain consecutive engagements with more than one sponsor under the Creative Worker route.

Employers should not assume that an exception applying in one sponsorship context permits multiple active Certificates generally.

 

What if a sponsor note itself contains an error?

If information added through a sponsor note is itself incorrect, the employer should not compound the problem by adding further ambiguous or contradictory information without first establishing the correct position.

The sponsor should:

1. identify exactly what was stated incorrectly;
2. verify the correct information;
3. consider the status of the CoS and immigration application;
4. determine the appropriate way to clarify the sponsorship record; and
5. retain an internal record explaining the sequence of events.

Where the incorrect sponsor note creates uncertainty about a material aspect of the sponsorship, the employer should consider obtaining advice before taking further action.

 

Should the worker apply if the employer knows the CoS contains an error?

Where an employer identifies an error before the immigration application is submitted, the safer approach is generally to resolve the sponsorship issue first.

The employer should identify the error, determine the correct information, reassess eligibility where necessary and use the appropriate correction or replacement process.

The worker should then use the accurate sponsorship information for the immigration application.

Employers should avoid encouraging a worker to submit an application using information known to be incorrect on the assumption that it can simply be fixed afterwards.

 

Can a CoS error affect the sponsor licence?

An isolated administrative error does not automatically result in sponsor licence action.

However, repeated or material inaccuracies can become relevant where they indicate weaknesses in the employer’s sponsorship systems or wider non-compliance.

Potential concerns can include:

• repeated incorrect occupation codes;
• salary discrepancies;
• inaccurate job descriptions;
• workers performing different roles from those sponsored;
• poor control over SMS users;
• failure to report relevant changes; or
• inadequate sponsorship record keeping.

Employers should therefore investigate the cause of material CoS errors as well as correcting the individual Certificate.

 

How quickly should a CoS error be corrected?

An employer should address a known error promptly, particularly where the worker has not yet submitted their immigration application.

The sponsor should nevertheless avoid rushing into the wrong corrective action.

The immediate priorities are to:

identify the error → verify the correct information → check the CoS status → check whether the worker has applied → reassess eligibility → use the appropriate correction mechanism.

Where the worker is about to apply, the employer should resolve the issue before submission wherever possible.

 

What records should an employer keep after correcting a CoS error?

The employer should retain an appropriate audit trail showing what happened and how the issue was resolved.

This can include:

• the original incorrect information;
• the correct information;
• evidence supporting the correction;
• when the error was discovered;
• the worker’s application status at that time;
• details of any sponsor note;
• details of any withdrawal and replacement;
• the replacement CoS reference where applicable;
• any relevant SMS report;
• internal approvals; and
• any remedial action taken to prevent recurrence.

The records should preserve an accurate chronology of the case.

 

When should an employer take legal advice about a CoS error?

Advice should be considered where the error is material, the appropriate correction mechanism is unclear or the immigration application has already progressed.

This can be particularly important where:

• the worker has already applied;
• UKVI has already made a decision;
• the occupation code is wrong;
• the correct salary may not satisfy the rules;
• the wrong immigration route was selected;
• multiple identity details are incorrect;
• the actual job differs materially from the sponsored role;
• several sponsored workers may be affected;
• the discrepancy has arisen during Home Office compliance activity; or
• the issue could affect the sponsor licence.

The aim should be to establish the correct legal and factual position before taking action that may affect either the worker’s immigration application or the employer’s sponsor licence.

 

 

 

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Section V: Conclusion

Certificate of Sponsorship errors should be addressed as soon as they are identified, but employers should avoid assuming that every mistake requires the same response.

The correct action depends on what is wrong, whether the error is minor or significant, whether the Certificate remains Assigned, whether the worker has already submitted an immigration application and whether UKVI has made a decision.

For certain amendments and minor errors, a sponsor note can provide the appropriate correction mechanism while the CoS remains Assigned. Current sponsor guidance expressly allows sponsor notes to be used to amend start and end dates, amend or update salary and working hours, correct minor errors and provide additional information or clarification.

Significant errors require greater caution. A wrong occupation code, wrong sponsorship route or subcategory, or incorrect information across more than one of the worker’s nationality, date of birth and surname can require the original Certificate to be withdrawn and replaced where it has not already been used to support an immigration application.

 

1. Check application status separately from CoS status

One of the most important practical points for employers is that the status displayed in the Sponsor Management System does not, by itself, establish whether the worker has submitted an immigration application.

A Certificate can continue to show as Assigned while an application is pending.

Once UKVI grants or refuses the application, the Certificate will generally show as Used.

Employers dealing with an error should therefore establish three separate facts:

1. What status does the CoS currently show in the SMS?
2. Has the worker submitted their immigration application?
3. Has UKVI made a decision?

This distinction is particularly important before withdrawing an apparently Assigned Certificate.

 

2. Correcting the record is only part of the exercise

The availability of a correction mechanism does not determine whether the sponsorship remains legally compliant.

If salary, working hours, occupation code, job duties, route or another substantive detail is wrong, the employer should reassess the worker’s eligibility using the correct facts.

For example, an employer may be able to amend an incorrect salary through a sponsor note while the Certificate remains Assigned. But if the genuine salary does not satisfy the applicable immigration requirements, correcting the figure does not resolve the underlying eligibility problem.

The same principle applies throughout the CoS correction process:

Correct the record → reassess the immigration requirements → confirm that the sponsorship remains compliant.

 

3. Preserve the true chronology

Employers should also distinguish carefully between an original error and a genuine subsequent change.

If the CoS contained the wrong start date when it was assigned, that is an error requiring correction.

If the original start date was correct but the worker subsequently needs to start later, that is a change in circumstances and may engage separate sponsor reporting requirements.

Similarly, an incorrectly entered salary is different from a genuine salary reduction after sponsorship has commenced.

The employer’s records should accurately show what happened rather than retrospectively reconstructing events to fit a preferred SMS process.

 

4. Keep an audit trail

Material CoS corrections should be documented.

The employer should be able to show:

• what information was incorrect;
• what the correct information is;
• how the correct information was verified;
• when the error was identified;
• the status of the CoS at that time;
• whether the worker had already applied;
• what corrective action was taken;
• whether a replacement Certificate was required;
• whether any separate SMS report was made; and
• what action was taken to prevent recurrence.

This provides an audit trail if the case is subsequently examined during Home Office compliance activity.

 

5. Use CoS errors to test the sponsor’s wider compliance systems

An isolated administrative error does not automatically mean that an employer’s sponsor licence is at risk.

However, repeated or material errors can indicate weaknesses in the sponsor’s systems.

Where a mistake is identified, employers should consider whether it resulted from:

• inadequate pre-assignment checking;
• incorrect occupation-code assessment;
• poor salary verification;
• insufficient Level 1 User training;
• weak communication between HR, recruitment, payroll and the sponsorship team;
• outdated internal guidance; or
• inadequate sponsor licence governance.

If the cause could affect other sponsored workers, the employer should consider a wider review.

 

6. The practical rule for employers

When a Certificate of Sponsorship error is identified, employers should work through the issue in a controlled sequence:

Identify → Verify → Classify → Check Status → Reassess Eligibility → Correct → Record → Prevent.

This means:

1. Identify exactly what is wrong.
2. Verify the correct information against reliable evidence.
3. Classify the issue as a permitted amendment, minor error or significant error.
4. Check Status by establishing the CoS status, whether the worker has applied and whether UKVI has made a decision.
5. Reassess Eligibility using the correct information.
6. Correct the sponsorship record using the appropriate mechanism.
7. Record the error, evidence and corrective action.
8. Prevent recurrence by addressing any weakness in the sponsor’s systems.

 

7. Final position

The safest response to a Certificate of Sponsorship mistake is neither to ignore it nor to make an immediate amendment without understanding its significance.

Employers should establish the correct facts, determine how far the immigration process has progressed and then apply the appropriate sponsorship procedure.

Minor errors and permitted amendments may be capable of correction through a sponsor note. Significant errors may require withdrawal and replacement before the Certificate is used to support an application. Once an application has been submitted or decided, the position requires additional care because the CoS status, immigration application and employer’s sponsor duties have to be considered together.

Where the error affects occupation code, route, salary, working hours, the genuine job, multiple identity details or an application already before UKVI, employers should ensure that the corrective action addresses both the Certificate itself and the underlying immigration position.

Effective sponsorship management ultimately depends on accurate information, appropriate checking and a clear audit trail. Employers that combine these controls with prompt corrective action are better placed to protect the worker’s immigration process and maintain effective sponsor licence compliance.

 

 

 

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Section W: Primary Legal & Home Office Sources

The rules and procedures governing Certificate of Sponsorship errors are spread across the Immigration Rules, Home Office sponsor guidance and the Sponsor Management System manuals.

Employers should use the current version of the relevant official guidance when correcting a Certificate because sponsor procedures and SMS functionality can change.

The principal sources for the issues covered in this guide are set out below.

 

1. Workers and Temporary Workers: Guidance for Sponsors – Part 2: Sponsor a Worker

This is the principal Home Office sponsor guidance for assigning and managing Certificates of Sponsorship.

For CoS errors, the most directly relevant provisions are in section S3: Assigning a CoS, including the provisions dealing with amending or updating an assigned Certificate.

Under the current guidance, section S3.42 confirms that, after a CoS has been assigned, a sponsor can return to it and add a sponsor note to:

• amend a start date;
• amend an end date;
• amend or update salary details;
• amend or update working hours;
• correct minor errors; or
• provide additional information or clarification.

Section S3.43 confirms that a sponsor note can only be added while the Certificate shows as Assigned in the Sponsor Management System. Once the CoS has been used, relevant subsequent changes are instead reported using the appropriate worker-reporting functionality in the SMS.

Employers should check the current version of Part 2 before taking action because this guidance is updated periodically.

 

2. Home Office guidance on minor CoS errors

Section S3.44 of Part 2 addresses minor errors.

The guidance confirms that the sponsor-note function can be used to amend a minor error on an Assigned CoS, with examples including a mistyped name or date of birth.

This provides the basis for distinguishing relatively limited clerical mistakes from significant errors that require a replacement Certificate.

Employers should nevertheless verify the correct information before adding a sponsor note and retain evidence explaining the correction.

 

3. Home Office guidance on significant CoS errors

Section S3.45 of Part 2 identifies examples of significant errors for which the sponsor must withdraw the incorrect CoS and assign a new Certificate.

The guidance identifies significant errors including:

• entering the wrong occupation code;
• assigning the CoS on the wrong route or in the wrong subcategory; and
• providing incorrect information for more than one of the worker’s nationality, date of birth and surname.

This distinction is central to determining whether an employer should use a sponsor note or replace the Certificate.

Before withdrawing a Certificate, however, the sponsor must also establish whether the worker has already used it to support an immigration application.

 

4. Home Office guidance on Assigned and Used CoS status

Section S6 of Part 2 explains what happens after a Certificate has been assigned and how the Certificate is used in an immigration application.

Section S6.5 is particularly important when dealing with CoS errors.

It confirms that a Certificate will generally continue to show as Assigned in the Sponsor Management System until UKVI makes a decision on the worker’s application.

Once a decision to grant or refuse the application has been made, the Certificate will generally show as Used.

Employers should therefore not interpret an Assigned status as confirmation that the worker has not submitted an application.

The correct sequence is:

CoS assigned → worker may submit application → CoS can continue to show Assigned while the application is pending → UKVI grants or refuses the application → CoS generally shows Used.

 

5. Home Office guidance on withdrawing a CoS

Section S6 of Part 2 also contains the Home Office guidance on cancelling or withdrawing Certificates of Sponsorship.

Where a significant error requires replacement, employers should read the withdrawal provisions together with the guidance on correcting significant errors.

In particular, sponsors should establish whether the Certificate has already been used to support an immigration application before attempting to withdraw it.

The SMS status should not be used as the sole test because a pending application does not necessarily cause the Certificate immediately to cease displaying as Assigned.

 

6. Workers and Temporary Workers: Guidance for Sponsors – Part 3: Sponsor Duties and Compliance

Part 3 of the sponsor guidance explains the duties imposed on licensed sponsors and the action the Home Office may take where those duties are breached.

This guidance is relevant where a CoS error raises wider questions about:

• sponsor record keeping;
• reporting duties;
• monitoring sponsored workers;
• changes in employment circumstances;
• the accuracy of sponsor records;
• Home Office compliance activity; or
• potential sponsor licence action.

An employer dealing with a material CoS error should therefore consider both the immediate correction rules in Part 2 and any wider sponsor duties engaged under Part 3.

 

7. Sponsor Management System manuals

The Home Office publishes Sponsor Management System manuals explaining how sponsors use individual SMS functions.

These manuals should be consulted where the employer needs procedural guidance on actions such as:

• assigning a Certificate;
• adding information to an assigned Certificate;
• withdrawing a Certificate;
• reporting worker activity;
• managing CoS allocation; and
• using other sponsorship functions within the SMS.

Part 2 of the sponsor guidance specifically directs sponsors to the relevant SMS manuals for technical guidance on assigning Certificates and reporting changes.

The legal and compliance assessment should be undertaken first; the SMS manual then provides the operational process for carrying out the appropriate action.

 

8. Immigration Rules

The Immigration Rules determine whether the worker satisfies the requirements of the immigration route under which they are applying or have been granted permission.

This becomes particularly important where correcting a CoS changes information relevant to substantive eligibility.

Depending on the error, the employer may need to consider the relevant Immigration Rules and appendices dealing with matters such as:

• the sponsored work route;
• eligible occupations;
• salary requirements;
• going rates;
• route-specific eligibility;
• switching requirements;
• periods of permission; and
• other conditions applying to the worker.

The fact that Home Office sponsor guidance permits a field to be amended does not remove the requirement for the worker to satisfy the Immigration Rules using the corrected information.

 

9. Route-specific sponsor guidance

Employers should also check the Home Office sponsor guidance for the particular route under which the worker is being sponsored.

For example, an employer sponsoring a Skilled Worker should consider the current Sponsor a Skilled Worker guidance alongside the general Part 2 and Part 3 sponsor guidance.

Route-specific guidance can be relevant to:

• eligible roles;
• occupation codes;
• salary;
• going rates;
• Defined and Undefined Certificates;
• route-specific information required on the CoS;
• the Immigration Skills Charge; and
• other sponsorship requirements.

Where correcting a Certificate changes one of these matters, the employer should reassess the case against the current route-specific requirements.

 

10. Immigration Skills Charge guidance

Where the original or replacement Certificate attracts the Immigration Skills Charge, employers should check the current Home Office guidance on paying and refunding the charge.

This is particularly relevant where an incorrect Certificate is withdrawn and a replacement is assigned.

The Immigration Skills Charge should be considered separately from the CoS assignment fee because different payment and refund rules apply.

Where an Immigration Skills Charge has been paid and the Certificate is withdrawn before it is used to support an immigration application, the applicable refund provisions should be checked against the circumstances of the case.

 

11. Use the version of the guidance in force at the relevant time

Sponsor guidance changes regularly.

At the time of publication of this guide, the principal Part 2: Sponsor a Worker guidance is version 08/26, published on 3 August 2026.

Employers should not assume that a downloaded copy, internal checklist or previous sponsorship procedure remains current.

Before correcting a material Certificate error, check:

1. the current version of Part 2;
2. the current version of Part 3;
3. the relevant route-specific sponsor guidance;
4. the applicable Immigration Rules;
5. the current SMS manual; and
6. any current Home Office guidance relevant to fees or the Immigration Skills Charge.

This is particularly important where the Certificate was assigned under an earlier version of the rules or guidance.

 

12. Primary-source hierarchy for CoS error decisions

For employers dealing with a Certificate error, the practical source hierarchy is:

Immigration Rules → route-specific requirements → sponsor guidance Part 2 → sponsor duties in Part 3 → SMS procedural manuals.

These sources perform different functions.

The Immigration Rules and route-specific requirements determine whether the worker qualifies. Part 2 explains the sponsorship and Certificate requirements. Part 3 addresses the employer’s continuing sponsor duties and compliance obligations. The SMS manuals explain how the relevant sponsorship actions are carried out within the system.

Using these sources together helps employers avoid a common mistake: focusing solely on how to change the CoS in the SMS without first determining whether the proposed correction is legally and procedurally appropriate.

 

 

 

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Section X: Glossary

 

Term	Meaning
Assigned	Assigned is a Certificate of Sponsorship status used within the Sponsor Management System. Once a sponsor assigns a CoS to a worker, it will generally show as Assigned. Importantly, a Certificate can continue to show as Assigned even after the worker has submitted their immigration application while that application is awaiting a UKVI decision. Employers should therefore not interpret Assigned as meaning that the worker has not yet applied.
Certificate of Sponsorship (CoS)	A Certificate of Sponsorship is an electronic sponsorship record assigned by a licensed sponsor to an eligible worker. It contains information about the worker, employer, sponsored role and other matters relevant to the immigration application. It is not a physical certificate. The worker uses the unique CoS reference number when making the relevant immigration application.
CoS Allocation	CoS allocation refers to the number of Undefined Certificates of Sponsorship available to a sponsor for assignment within the relevant allocation arrangements. If an Assigned Undefined CoS is withdrawn because of an error, it is not returned to the sponsor’s allocation. An employer requiring a replacement should therefore check that sufficient allocation remains available before taking action.
CoS Assignment Fee	The CoS assignment fee is the fee payable when the sponsor assigns a Certificate of Sponsorship. Where an incorrect Certificate is withdrawn and another Certificate has to be assigned, a further assignment fee may be payable. The original assignment fee is not refunded merely because the Certificate is subsequently cancelled or withdrawn.
Defined Certificate of Sponsorship	A Defined Certificate of Sponsorship is the type of CoS used in the circumstances specified by the Skilled Worker sponsorship arrangements, principally for relevant Skilled Worker applications made from outside the UK. Defined Certificates operate differently from Undefined Certificates in terms of how they are obtained and made available to the sponsor. Where an erroneous Defined CoS needs replacing, the employer should follow the applicable Defined CoS process rather than treating it as an Undefined allocation issue.
Immigration Skills Charge (ISC)	The Immigration Skills Charge is a charge payable by sponsors in specified circumstances when sponsoring workers under relevant routes. It is separate from the CoS assignment fee. Where an incorrect Certificate is withdrawn and replaced, the employer should consider separately whether an ISC refund is due on the original Certificate and whether a charge is payable in relation to the replacement.
Level 1 User	A Level 1 User is a person authorised to perform specified sponsorship functions through the Sponsor Management System. Level 1 Users can perform important functions relating to Certificates of Sponsorship and sponsored workers, subject to the permissions and restrictions applying to their role. Employers should ensure that individuals carrying out CoS functions understand both how to use the SMS and the sponsorship requirements underlying the information they enter.
Minor Error	A minor error is a limited mistake on a Certificate of Sponsorship that can fall within the sponsor-note correction provisions while the Certificate remains Assigned. Home Office guidance gives examples such as a mistyped name or date of birth. Employers should nevertheless consider the complete factual position because multiple incorrect identity fields can amount to a significant error.
Occupation Code	An occupation code is the classification used to identify the occupation under which a sponsored job falls for immigration purposes. The appropriate occupation code should be determined from the genuine role and duties rather than simply from the job title. Using the wrong occupation code is treated as a significant CoS error.
Significant Error	A significant error is an error that cannot appropriately be dealt with as a minor correction through a sponsor note. Examples identified in Home Office sponsor guidance include: the wrong occupation code; the wrong sponsorship route or subcategory; and incorrect information in more than one of the worker’s nationality, date of birth and surname. Where a significant error is identified before the Certificate has been used to support an immigration application, the sponsor will normally need to withdraw the incorrect CoS and assign a new one.
Sponsor	A sponsor is an organisation licensed by the Home Office to sponsor eligible workers under the applicable sponsored work or temporary work routes. The sponsor is responsible for complying with its sponsor duties, including maintaining appropriate records, reporting relevant matters and ensuring that sponsorship information is accurate.
Sponsor Licence	A sponsor licence is the Home Office authorisation that enables an eligible organisation to sponsor qualifying workers under the immigration routes covered by its licence. Certificate of Sponsorship administration forms part of the employer’s wider sponsor licence responsibilities. Repeated or material CoS inaccuracies may become relevant to the sponsor licence where they indicate wider weaknesses in the employer’s sponsorship systems or compliance.
Sponsor Management System (SMS)	The Sponsor Management System is the online system used by licensed sponsors to carry out sponsorship functions. Depending on the sponsor’s circumstances and the user’s permissions, functions can include: assigning Certificates of Sponsorship; adding sponsor notes; reporting relevant worker changes; withdrawing Certificates; managing sponsor information; managing key personnel; and carrying out other sponsor licence functions. The SMS is the administrative mechanism. Employers must still determine which legal or sponsorship action is appropriate before using the relevant function.
Sponsor Note	A sponsor note is a function that allows a sponsor to add information to a Certificate of Sponsorship while it remains Assigned. Current sponsor guidance permits sponsor notes to be used to: amend a start date; amend an end date; amend or update salary; amend or update working hours; correct minor errors; and provide additional information or clarification. A sponsor note does not provide a mechanism for disregarding substantive immigration requirements or converting a significant CoS error into a minor one.
Sponsorship Route	A sponsorship route is the immigration route under which the employer sponsors the worker. The Certificate must be assigned under the correct route and, where applicable, subcategory. Assigning the Certificate under the wrong route or subcategory is treated as a significant error.
Undefined Certificate of Sponsorship	An Undefined Certificate of Sponsorship is a CoS assigned from the sponsor’s available Undefined CoS allocation in the circumstances where this type of Certificate is required. If an Assigned Undefined Certificate is withdrawn because of an error, it is not returned to the sponsor’s allocation. The employer should therefore check available allocation before withdrawing an incorrect Certificate where a replacement will be required.
Used	Used is a Certificate of Sponsorship status within the Sponsor Management System. A CoS generally remains Assigned while an immigration application supported by that Certificate is awaiting a UKVI decision. After UKVI grants or refuses the application, the Certificate will generally show as Used. A Used CoS cannot normally be used to support another immigration application. This means that employers should not use the word “Used” simply to mean that the worker has submitted their application. Application submission and SMS status need to be considered separately.
UK Visas and Immigration (UKVI)	UK Visas and Immigration is the part of the Home Office responsible for administering the UK’s visa and immigration system, including decisions on sponsored worker applications and the operation of the sponsor licensing regime. UKVI can also undertake sponsor compliance activity and take action against sponsors where sponsorship requirements are not met.
Withdrawal of a Certificate of Sponsorship	Withdrawal is the process by which a sponsor withdraws a Certificate of Sponsorship in the circumstances permitted by the sponsorship system and guidance. Withdrawal can be relevant where a significant error has been identified and the incorrect Certificate has not already been used to support an immigration application. Before withdrawing a Certificate, the employer should establish whether the worker has already applied rather than relying solely on an Assigned SMS status.
Replacement Certificate of Sponsorship	A replacement Certificate of Sponsorship is a new CoS assigned where the original Certificate cannot appropriately be corrected and a new Certificate is required. Before assigning the replacement, the employer should: verify the correct information; reassess the worker’s eligibility; ensure the correct occupation code and route are being used; check any allocation requirements; consider applicable fees and charges; and ensure the worker uses the correct CoS reference for the relevant immigration application.
Original Error	An original error is information that was already incorrect when the Certificate of Sponsorship was assigned. For example, entering £45,000 where the genuine agreed salary was £43,000 would be an original error if £43,000 was the correct salary at the time of assignment. This should be distinguished from a subsequent change in the worker’s circumstances.
Subsequent Change	A subsequent change occurs where information on the Certificate was accurate when the CoS was assigned but the circumstances later changed. Examples can include a genuine later change to: salary; working hours; job duties; work location; employment start date; or other employment circumstances. Subsequent changes can engage separate sponsor reporting or immigration requirements and should not automatically be treated as corrections to an original CoS error.
CoS Error Audit Trail	A CoS error audit trail is the employer’s internal record showing how an inaccurate Certificate was identified, investigated and corrected. A useful audit trail can record: the original information; the correct information; supporting evidence; when the error was identified; the worker’s application status; the corrective action taken; any replacement CoS; any relevant SMS reporting; and measures taken to prevent recurrence. This can be particularly important if the sponsorship case is subsequently examined during Home Office compliance activity.
CoS Error Correction	CoS error correction refers to the process of identifying inaccurate information on a Certificate of Sponsorship and using the appropriate sponsorship mechanism to address it. The appropriate response depends on the nature of the error and how far the immigration process has progressed. The core distinction is: Assigned CoS + permitted amendment or minor error: a sponsor note may be available; significant error + no application submitted: withdrawal and replacement will normally be required; application submitted but not decided: the CoS may still display as Assigned, but the effect on the pending application must also be considered; and application decided: the CoS will generally show as Used and the employer should consider any applicable reporting, immigration or corrective action. The employer should always assess the corrected facts against the substantive immigration requirements rather than treating the SMS correction itself as the end of the process.

 
 

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Section Y: Useful Links

 

Resource	URL
Workers and Temporary Workers: Guidance for Sponsors – Part 2: Sponsor a Worker	https://www.gov.uk/government/publications/workers-and-temporary-workers-guidance-for-sponsors-part-2-sponsor-a-worker
Workers and Temporary Workers: Guidance for Sponsors – Full Collection	https://www.gov.uk/government/collections/sponsorship-information-for-employers-and-educators
Certificate of Sponsorship: GOV.UK Employer Guidance	https://www.gov.uk/uk-visa-sponsorship-employers/certificates-of-sponsorship
Sponsor Management System	https://www.gov.uk/sponsor-management-system
SMS Guide 8: Creating and Assigning a Certificate of Sponsorship	https://www.gov.uk/government/publications/creating-and-assigning-a-cos-sms-guide-8
SMS Manual 1: Introduction to the Sponsor Management System	https://www.gov.uk/government/publications/use-the-sponsorship-management-system-sms-user-manual
SMS Manual 2: Managing Your Sponsor Licence	https://www.gov.uk/government/publications/manage-your-sponsorship-licence-sms-user-manual
Defined Certificate of Sponsorship: SMS Manual 12	https://www.gov.uk/government/publications/restricted-certificate-of-sponsorship-sms-guide-12
Immigration Skills Charge	https://www.gov.uk/uk-visa-sponsorship-employers/immigration-skills-charge

 
 

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