Section A: What is a Sick Note in the UK?
In UK employment law, there is no specific legal document called a ‘sick note’. The term is commonly used to describe what is officially known as a ‘fit note’. A fit note is the recognised form of medical evidence used to support sickness absence, Statutory Sick Pay (SSP) decisions and the return to work process. It plays a central role in how employers assess absence, pay entitlements and whether an employee may be able to return to work with adjustments.
1. What does “sick note” mean in UK employment law?
Although widely used in everyday language, the term ‘sick note’ has no legal status. In practice, employers and employees use it as shorthand for a fit note. The legal framework governing sickness absence, SSP and return to work relies on the fit note system rather than any document formally described as a sick note. For shorter absences, employers rely instead on self-certify sickness rules, rather than medical evidence.
2. What is a fit note and how is it different from a sick note?
A fit note is the official medical evidence recognised in UK employment law. It allows a healthcare professional to advise whether an employee is not fit for work or may be fit for work, subject to certain changes. While the phrase ‘sick note’ remains common, employers should treat any reference to a sick note as a reference to a fit note for legal, payroll and absence-management purposes, particularly when assessing entitlement under Statutory Sick Pay eligibility rules.
3. What information does a fit note usually include?
A fit note confirms whether the employee is not fit for work or may be fit for work and states the period to which the advice applies. It may include comments on the functional effects of the condition and recommendations to support a return to work, such as altered duties or hours. A fit note does not need to specify a medical diagnosis and often focuses on capability rather than the underlying condition, which limits the amount of personal medical information disclosed to the employer.
DavidsonMorris Strategic Insight
The fundamentals matter here. A fit note isn’t a direct replacement for the old sick note. A fit note isn’t a formal entitlement document and doesn’t create rights or guarantee pay. It’s a form of evidence that should be used to inform employers and support safe decision-making in relation to absence management and return to work.
Section B: When Does an Employee Need a Sick Note?
Whether an employee needs to provide a fit note depends on the length of their sickness absence. UK rules draw a clear distinction between short-term absences, where self-certification applies, and longer absences where medical evidence can be requested by the employer.
1. Can an employee self-certify sickness?
If an employee is absent from work for seven or fewer consecutive calendar days, including weekends and non-working days, they are not required to provide a fit note. Instead, employers can ask the employee to self-certify sickness on their return to work. This is commonly done using a return-to-work form, the employee’s statement of sickness (SC2) form or written confirmation of the dates and reason for absence.
Employees do not pay for a fit note where it is required for sickness absence over seven days, but a healthcare professional may charge for a private note covering the first seven days if an employer asks for one, and the employer typically covers that cost if it requests the document.
2. When can an employer require a fit note?
Where sickness absence lasts for more than seven consecutive calendar days, the employer can ask the employee to provide a fit note. This applies regardless of whether the employee qualifies for Statutory Sick Pay or any form of contractual sick pay. The fit note acts as medical evidence to support continued absence rather than creating an automatic entitlement to pay.
3. How are the seven days calculated?
The seven-day period is calculated using consecutive calendar days. This includes weekends, rest days and bank holidays, even where the employee would not normally be required to work on those days. Employers should apply this calculation consistently to avoid disputes or inconsistent absence handling.
4. What happens if an employee does not provide a sick note?
Where a fit note is reasonably requested in line with policy and the employee does not provide it, the employer can treat the absence as not evidenced for the purposes of its absence management and sick pay processes, subject to proportionality and consistent application.
This can affect entitlement to sick pay and may trigger absence management procedures, depending on the circumstances and the contractual terms that apply. Any action taken should be proportionate and consistent with how similar absences are handled across the workforce.
| Absence length | Evidence to request | Provided by |
|---|---|---|
| 1 to 7 consecutive calendar days | Self-certification, for example return-to-work form, SC2 or written confirmation of dates and reason | Employee |
| More than 7 consecutive calendar days | Fit note as medical evidence for ongoing absence | Authorised healthcare professional, provided by the employee |
| Return to work after any sickness absence | Return-to-work discussion and record of absence details, plus any agreed adjustments if relevant | Employer and employee |
| Repeated short absences that stay within 7 days each time | Self-certification for each episode, plus absence management review where policy triggers are met | Employee, with employer-led review |
| Longer or sensitive cases, for example prolonged absence or safety-critical roles | Fit note plus occupational health input where appropriate, and documented risk assessment for any return plan | Employer initiates referral, employee consent required |
DavidsonMorris Strategic Insight
Line management makes all the difference. If managers apply the rules incorrectly or inconsistently, you risk complaints and damaged employee relations. All managers should be trained on the self-certification rules to avoid premature requests for medical evidence or varying practice across the organisation.
Section C: Who Is Allowed to Issue a Sick Note or Fit Note?
Fit notes can be issued by a range of authorised healthcare professionals who are responsible for assessing an employee’s fitness for work. The rules focus on who is qualified to make that assessment, rather than limiting fit notes to GPs alone.
1. Which healthcare professionals can issue fit notes?
Fit notes may be issued by GPs and hospital doctors, as well as other authorised healthcare professionals involved in the employee’s care. The issuing professional should have sufficient knowledge of the employee’s condition to assess how it affects their ability to work and whether a return to work is appropriate.
2. Can nurses, pharmacists or physiotherapists issue fit notes?
Since July 2022, fit notes can also be issued by nurses, occupational therapists, pharmacists and physiotherapists. These changes were introduced to reduce pressure on GP services and speed up access to medical evidence. The healthcare professional issuing the fit note is responsible for determining the employee’s fitness to work based on their clinical assessment.
3. Can employers accept alternative medical evidence?
In some circumstances, an employee may provide a report from an allied health professional rather than a GP or hospital doctor. Employers are not required to accept alternative medical evidence unless their absence policy allows for this or they agree to do so. Acceptance of private medical reports is a matter of employer discretion and should be applied consistently. Where there is uncertainty about fitness to work, employers may instead rely on an occupational health assessment to inform absence management and return-to-work decisions.
DavidsonMorris Strategic Insight
The rules on authorised healthcare professionals were changed in recent years, meaning GPs are no longer the only gatekeeper to a fit note. Since 2022, the system has been deliberately widened to improve access and avoid delays. The challenge now is to avoid any knee-jerk rejection of non-GP fit notes and instead focus on whether the note is valid and what it says about function, not on defending outdated assumptions about who is “properly” qualified.
Section D: What Does a Fit Note Mean for Returning to Work?
A fit note is intended to support informed decisions about sickness absence and return to work rather than operate as a binding instruction on either the employee or the employer. It provides a medical view on capability, which employers then assess alongside operational and health and safety considerations.
1. What does “not fit for work” mean?
Where a fit note states that the employee is not fit for work, the healthcare professional is advising that the employee should remain off work for the period specified. During that period, the employee is treated as unfit for work for sickness absence purposes, and absence should be managed in line with the organisation’s sickness and return to work procedures.
2. What does “may be fit for work” mean?
A ‘may be fit for work’ recommendation indicates that the employee could potentially return to work if certain changes are made. These may include a phased return, altered working hours, amended duties or workplace adaptations. The intention is to support a safe and sustainable return to work rather than delay it until full recovery.
3. Are employers required to follow fit note recommendations?
Fit note recommendations are advisory. Employers should consider them carefully, but they are not legally binding. Where suggested changes cannot reasonably be accommodated, the employee can be treated as not fit for work for the duration of the fit note, without the need for the employee to obtain a further note.
4. What if the employer cannot make the suggested changes?
If recommended changes cannot be implemented, the employee remains off work for the period covered by the fit note. The employer should keep the position under review and continue to engage with the employee about potential return-to-work options as circumstances change.
DavidsonMorris Strategic Insight
This is where employers most often surrender discretion by mistake. Fit note recommendations are advisory only and shouldn’t be treated as instructions that can’t be questioned. Employers are expected to consider the advice, not blindly implement it.
Remember also that any action you take sets a precedent, and that can be hard to unwind or backtrack on in future scenarios.
Section E: Can an Employee Return to Work Before a Fit Note Ends?
A fit note does not prevent an employee from returning to work earlier than the date stated, provided this can be done safely and with the employer’s agreement. Decisions around early return should balance medical advice, workplace risk and operational requirements.
1. Does a fit note prevent an early return to work?
An employee can return to work before the end date on a fit note if they feel able to do so and the employer agrees. A new fit note is not required simply because the employee returns earlier than anticipated, provided the employer is satisfied that the return can be managed safely.
2. Can an employer require medical clearance?
Employers may require written medical confirmation that an employee is fit to return, particularly where there are health and safety concerns or the role involves risk. This is a policy-based and risk-based decision rather than a statutory requirement and may involve a private medical certificate or an occupational health assessment rather than a standard fit note.
3. What role does occupational health play?
Occupational health can assist employers in assessing whether an early return is appropriate and what adjustments may be required. Referrals are commonly used where absence is prolonged, where adjustments may be complex or where there is uncertainty about fitness for work. Any referral requires the employee’s consent.
4. When can an employer refuse an early return?
Where a risk assessment indicates that an early return cannot be accommodated safely or reasonably, the employer can require the employee to remain off work until the end of the fit note period. This may apply where suitable adjustments are not available or where returning would pose a health and safety risk.
DavidsonMorris Strategic Insight
Early returns are usually welcomed by employers, but they have to be managed carefully. The law leaves this judgement with the employer, but it has to be exercised properly.
Allowing an early return without assessment can open the organisation to health and safety risk, but refusing without analysis can give rise to a grievance or even possible discrimination arguments. Remember also your record-keeping. Employers who cannot articulate why they said yes or no to an early return usually find problems follow.
Section F: How Should Employers Support a Return to Work?
The fit note framework is designed to support earlier and sustainable returns to work where this can be achieved safely. Employers play a central role in assessing whether a return is viable and what changes may be needed to facilitate it.
1. What workplace changes can a fit note recommend?
A fit note may recommend a range of changes to support a return to work. These commonly include a phased return to work, altered working hours, amended duties or workplace adaptations such as specialist equipment. The recommendations are intended to address the functional impact of the employee’s condition rather than provide clinical detail.
2. How should employers assess adjustments in practice?
Employers should assess recommended adjustments in light of operational requirements, the nature of the role and health and safety considerations. This assessment should be documented and applied consistently, particularly where similar roles or conditions have arisen previously. Where adjustments are not straightforward, employers may seek further input through an occupational health assessment to inform decision-making.
3. What happens if agreement cannot be reached?
Where no suitable agreement can be reached on adjustments, the employee should continue to be treated as unfit for work for the duration of the fit note. The employer should keep the situation under review and remain open to revisiting options if circumstances change or further medical information becomes available.
DavidsonMorris Strategic Insight
Supporting a return to work is open to extremely wide interpretation, but employers have to make sure they are operating in line with their obligations and the worker’s rights. Manager discretion and informal adjustments may feel positive in the moment, but they can result in precedents being set that dictate future decisions and courses of action.
Any changes should first be dealt with as requests, based on an approved rationale and properly documented.
Section G: Sick Notes, Disability and Reasonable Adjustments
Sickness absence may, in some cases, be linked to a disability under the Equality Act 2010. Where this applies, the employer’s duties extend beyond standard absence management and into the statutory duty to make reasonable adjustments.
1. When does sickness amount to a disability?
A worker is treated as having a disability where they have a physical or mental impairment that has a substantial and long-term adverse effect on their ability to carry out normal day-to-day activities. An impairment is long-term where it has lasted, or is likely to last, at least 12 months, or where it is recurring. This assessment is fact-specific and does not depend on the label given to a medical condition.
2. What reasonable adjustments may be required?
Reasonable adjustments are changes made to remove or reduce disadvantage caused by a disability. These may include workplace adaptations, modified duties, altered working hours, additional support or discounting disability-related absence when applying absence management triggers. What is reasonable will depend on the role, the workplace, the resources available to the employer and the effectiveness of the adjustment.
3. What are the risks of failing to make adjustments?
A failure to make reasonable adjustments can amount to disability discrimination. Claims can be brought in the employment tribunal, and compensation is uncapped. Poor handling of fit notes and return-to-work recommendations is a common feature in claims where disability-related absence is in issue.
4. Are employees required to pay for adjustments?
Employees should not be required to pay for reasonable adjustments. Employers may be able to access financial support through the Access to Work scheme to help cover the cost of practical workplace support, equipment or services needed to enable the employee to return to work.
DavidsonMorris Strategic Insight
A diagnosis isn’t always needed, so don’t delay the reasonable adjustment process on account of a formal diagnosis not being forthcoming. The main concerns for employers are the impact of the worker’s condition and the duration, not the diagnosis itself.
Employers who openly and proactively engage early in relation to reasonable adjustments will fare better, with a lower risk of complaint. It’s best to document decision-making and show a willingness to adapt, even if adjustments ultimately prove unworkable.
Section H: Do Employees Need a Sick Note to Get SSP?
Statutory Sick Pay (SSP) rules depend on when the sickness absence starts.
For absences starting before 6 April 2026, SSP normally becomes payable from the fourth qualifying day of sickness absence.
For absences starting on or after 6 April 2026, SSP is payable from the first full day of sickness absence and more employees qualify because the Lower Earnings Limit threshold is removed.
In both cases, entitlement still turns on the statutory eligibility conditions and compliance with the employer’s notification rules, not on whether a fit note has been issued.
1. When does Statutory Sick Pay become payable?
SSP may be payable where an employee has been off work for four or more consecutive days, including non-working days. Entitlement is assessed in line with the employee’s Statutory Sick Pay eligibility, including earnings at or above the Lower Earnings Limit for the relevant tax year and compliance with notification requirements.
2. Is a fit note required for SSP?
A fit note may be required as evidence once sickness absence exceeds seven consecutive calendar days. The requirement to provide medical evidence is separate from the question of whether SSP is payable and does not of itself create an automatic right to SSP. Guidance on how and when to claim SSP should be reflected in the employer’s absence and payroll procedures.
3. What happens if a fit note is late?
Employers can ask for a fit note only where the employee has been off sick for more than seven consecutive calendar days, including non-working days. If a fit note is provided late, SSP should not be withheld for that reason alone. Employers can withhold SSP for days where the employee has not met the notification requirement, but not because medical evidence arrived late.
Employers should apply notification and evidence rules consistently and record the basis for any SSP decision.
4. How does contractual sick pay interact with SSP?
Contractual sick pay applies in accordance with the terms of the employment contract and may provide enhanced entitlement beyond SSP. Employers should ensure contractual schemes operate clearly alongside statutory requirements, particularly where entitlement to pay changes or when sick pay runs out.
DavidsonMorris Strategic Insight
Nine times out of ten, SSP complaints come from misunderstandings between the employer and the worker. Act on any queries from workers quickly. Pay is a highly emotive issue and a source of anxiety, which is far from ideal when someone is recovering from illness and absence from work.
April 2026 is also due to bring significant changes to SSP rates and eligibility. Workers are likely to be aware of enhanced entitlements, so employers need to be on top of the detail and ready to respond clearly and consistently.
Section I: How Does Sickness Affect Holiday Entitlement?
Sickness absence and holiday entitlement interact in specific ways under UK law. Employers need to understand how these rules operate to avoid unlawful deductions, inconsistent treatment or disputes over leave entitlement.
1. Does holiday continue to accrue during sickness?
Statutory holiday entitlement continues to accrue during sickness absence, regardless of how long the employee has been off work. This applies whether the employee is receiving Statutory Sick Pay, contractual sick pay or no sick pay at all. The position is particularly relevant where sickness absence becomes prolonged or develops into long-term absence.
2. What happens if an employee is sick during annual leave?
Where an employee falls ill before or during a period of annual leave, they are entitled to take that period as sick leave instead, provided they follow the employer’s sickness reporting procedures. This applies even where the annual leave has already been approved. The interaction between sickness and holiday can become more complex in cases of extended absence, including long-term sick leave and holiday pay.
3. Can an employer force holiday instead of sick leave?
Where an employee is sick during annual leave and follows the employer’s reporting and evidence rules, the employee can take the period as sick leave instead of holiday. Employers should not insist that a period of genuine sickness is taken as annual leave.
However, in some circumstances, holiday pay may be used to provide pay during periods of sickness where the employee does not qualify for SSP or contractual sick pay, provided this is handled lawfully and transparently.
DavidsonMorris Strategic Insight
Holiday and sickness overlaps are often handled casually as part of the everyday, but that’s where the risk is. Managers make what they consider to be pragmatic decisions in the moment, but those decisions can end up conflicting with the rules.
Something in particular to watch is when absence becomes long-term and the outstanding holiday balance swells significantly. You will need to track accrual accurately and focus on consistency of approach and strong record-keeping.
Section J: Key Risks for Employers When Managing Sick Notes
Managing sick notes is not simply an administrative exercise. Errors or inconsistent handling can expose employers to financial loss, employee relations issues and legal claims. Many risks only become apparent once a dispute has already escalated.
| Risk trigger | Preventative action |
|---|---|
| Requesting medical evidence too early | Apply self-certification consistently for short absences and train managers on the seven-day rule |
| Treating fit note advice as binding | Assess recommendations through documented risk assessment and record reasons for decisions |
| Rigid application of absence triggers | Build in discretion and review triggers where absence may be disability-related |
| SSP handling errors | Separate evidence requirements from SSP eligibility and correct pay once evidence is received |
| Poor record-keeping | Keep clear records of evidence, assessments and agreed actions |
| Data protection missteps | Limit medical information to functional impact and obtain consent before any third-party contact |
| Inconsistent manager practice | Use standard processes, manager training and central HR oversight |
1. SSP disputes and payroll exposure
Incorrect handling of fit notes is a common cause of SSP disputes. Problems often arise where evidence is requested too early, withheld for too long or applied inconsistently. Employers should ensure that payroll teams understand the distinction between medical evidence and entitlement, and that SSP decisions align with Statutory Sick Pay eligibility rules and guidance on the current SSP rate. Failure to do so can result in underpayments, arrears and avoidable grievances.
2. Discrimination and reasonable adjustment claims
Where sickness absence is linked to a disability, poor handling of fit notes can quickly escalate into discrimination risk. Ignoring recommendations, applying rigid absence triggers or failing to consider adjustments can support claims of disability discrimination. These risks are heightened where decisions are undocumented or where managers apply different standards across teams.
3. Inconsistent absence handling
Inconsistency in how sick notes are requested, reviewed or acted upon is a frequent source of employee challenge. Employers that depart from their own absence policies or apply discretion unevenly can undermine their position in disciplinary processes or tribunal proceedings. Clear policies and consistent application are key to managing this risk.
4. Data protection and medical information risks
Fit notes contain health information and should be handled as sensitive personal data. Employers should avoid requesting unnecessary medical detail and should not contact healthcare professionals directly without the employee’s consent. Mishandling medical information can give rise to data protection concerns alongside employment law risk.
DavidsonMorris Strategic Insight
Sick notes are usually well accounted for in company policies and processes. The problems are in the execution. Different managers applying different standards, poor record-keeping and reactive decisions can all turn into patterns that employees and tribunals can spot, even if employers can’t. Stay close to the approved process, train your managers and approach fit notes as more than just documents to be filed away.
Section K: Summary
A sick note, properly understood as a fit note, is a practical tool for managing sickness absence rather than a formality or a box-ticking exercise. The rules are straightforward on paper, but the risk sits in how they are applied. Employers need to be clear on when medical evidence is required, how it interacts with SSP, and where discretion sits on return-to-work decisions. Fit notes do not override employer judgment, but they do shape risk, particularly where disability, adjustments or pay are in play. Most disputes arise not from the law itself, but from delay, inconsistency or over-rigid handling once an employee is already off sick.
Section L: Need Assistance?
Managing sickness absence and fit notes is rarely straightforward once real-world pressures set in. Decisions around evidence, pay, adjustments and return to work can carry legal and employee-relations risk if handled poorly or inconsistently. If you are dealing with a difficult absence, prolonged sickness or uncertainty around SSP or disability obligations, early advice can prevent problems escalating. DavidsonMorris advises employers on sickness absence, fit notes and return-to-work issues, with a focus on risk management and practical compliance. If you need support on a live issue or want to review your approach, book a fixed-fee telephone consultation to speak with one of our employment law advisers.
Section M: Sick Note FAQs
What is a sick note and when is it required?
A sick note is the commonly used term for a fit note. It can be requested where an employee has been absent from work for more than seven consecutive calendar days, including weekends and non-working days. For shorter absences, employers should rely on self-certification rather than medical evidence.
Can an employer ask for a sick note before seven days?
An employer should not require a fit note for absences of seven days or fewer. Internal policies can ask for notification and self-certification during this period, but medical evidence should not be demanded earlier.
Does a fit note guarantee Statutory Sick Pay?
No. A fit note provides medical evidence of sickness absence, but SSP entitlement depends on statutory eligibility, including earnings at or above the Lower Earnings Limit and compliance with notification rules.
Can an employee return to work before a fit note ends?
An employee can return to work earlier if they feel able to do so and the employer agrees. A new fit note is not required purely because the employee returns earlier than expected, provided the return can be managed safely.
Can an employer reject a fit note?
Employers should accept a valid fit note as medical evidence. Recommendations on adjustments are advisory rather than binding, but the fit note itself should not be disregarded without good reason.
What if a fit note is submitted late?
SSP should not be withheld solely because a fit note is late. An employer can ask for a fit note only after more than seven consecutive calendar days of sickness absence. SSP can be withheld for days where the employee did not meet the employer’s notification rules, but not because medical evidence was provided late.
Who is allowed to issue a fit note?
Fit notes can be issued by GPs, hospital doctors and, since July 2022, nurses, occupational therapists, pharmacists and physiotherapists involved in the employee’s care.
Can an employer contact a GP to check a fit note?
Employers should not contact a healthcare professional directly without the employee’s consent. Fit notes should be handled as confidential medical information and processed in line with data protection obligations.
Does sickness affect holiday entitlement?
Statutory holiday entitlement continues to accrue during sickness absence. If an employee is sick during annual leave, the period can be taken as sick leave instead.
What happens if sickness is linked to a disability?
Where sickness amounts to a disability under the Equality Act 2010, employers should consider reasonable adjustments and avoid rigid application of absence policies. Failure to do so can give rise to discrimination claims.
Section N: Glossary
| Term | Definition |
|---|---|
| Fit note | The official medical document used in UK employment law to evidence sickness absence and advise whether an employee is not fit for work or may be fit for work, subject to adjustments. |
| Sick note | Common, non-legal term used to refer to a fit note. |
| Self-certification | The process by which an employee confirms sickness absence without medical evidence for the first seven consecutive calendar days. |
| Statutory Sick Pay (SSP) | The statutory minimum sick pay employers pay to eligible employees who are off work due to illness, subject to qualifying conditions. |
| Lower Earnings Limit | The minimum level of average weekly earnings required for eligibility for Statutory Sick Pay in the relevant tax year. |
| May be fit for work | A fit note outcome indicating an employee could return to work if specific workplace changes are made. |
| Reasonable adjustments | Changes an employer is required to make under the Equality Act 2010 to remove or reduce disadvantage for a disabled employee. |
| Occupational health | A specialist service that assesses an employee’s fitness for work and advises employers on adjustments and risk management. |
| Calendar days | Consecutive days including weekends, rest days and bank holidays, used when calculating sickness absence periods. |
| Access to Work | A government scheme that can provide funding to support disabled employees with workplace adjustments or equipment. |
Section O: Additional Resources
| Resource | Description | Link |
|---|---|---|
| GOV.UK – Fit notes guidance | Official government guidance on how fit notes work, who can issue them and how employers should use them. | https://www.gov.uk/government/publications/fit-note-guidance-for-employers-and-line-managers |
| NHS – Fit notes (sick notes) | NHS overview explaining when fit notes are needed and how employees can obtain them. | https://www.nhs.uk/conditions/fit-note/ |
| ACAS – Managing sickness absence | Practical guidance for employers on handling sickness absence fairly and lawfully. | https://www.acas.org.uk/managing-absence |
| HMRC – Statutory Sick Pay guidance | Detailed guidance on SSP entitlement, evidence requirements and employer payroll obligations. | https://www.gov.uk/employers-sick-pay |
| Equality and Human Rights Commission | Authoritative guidance on disability, reasonable adjustments and discrimination risks in the workplace. | https://www.equalityhumanrights.com/en/advice-and-guidance |
