Going on Holiday While on Sick Leave 2026: Rules, Pay & Risks

can you go on holiday whilst on sick leave uk

SECTION GUIDE

Employees going on holiday while on sick leave is one of those issues that looks simple on the surface but carries disproportionate legal, operational and reputational risk for employers. For HR teams and business owners, it sits at the intersection of working time law, sickness absence management, discrimination risk and employee relations. Mishandling it can result in tribunal claims, backdated holiday pay liabilities, constructive dismissal allegations and long-term trust damage across the workforce.

From a legal perspective, UK employment law does not prohibit an employee from taking holiday while on sick leave. At the same time, employers are not required to suspend all judgement or accept every request at face value. The difficulty lies in knowing where lawful control ends and unlawful interference with statutory rights begins. That line is not always obvious, particularly where mental health conditions, long-term absence or incomplete medical evidence are involved. For wider compliance context, see our UK employment law resources and the underlying rules in the Working Time Regulations 1998.

For employers, the risk rarely arises from an employee booking a holiday. It arises from how the employer responds. Automatic refusals, poorly drafted policies, assumptions about malingering or inconsistent treatment between employees are far more likely to trigger legal exposure than the holiday itself. This is especially true where sickness absence overlaps with stress, anxiety or other conditions that may engage disability protections under the Equality Act 2010.

There is also a commercial dimension that cannot be ignored. Decisions about holiday during sick leave affect payroll costs, sick pay liabilities, resourcing cover, operational planning and the wider message sent to the workforce about how illness and wellbeing are treated. An overly permissive approach can undermine absence controls. An overly rigid one can escalate costs and disputes far beyond the original issue.

What this article is about:
This guide provides employers with a clear, compliance-led framework for dealing with situations where an employee wants to go on holiday while on sick leave. It explains what UK employment law requires, what employers must actively decide, and where the real legal and commercial risks sit if those decisions are handled incorrectly. It goes beyond basic explanations to address grey areas, edge cases and common employer mistakes, equipping HR professionals and business owners to make defensible, proportionate decisions that stand up to scrutiny.

 

Section A: When can an employee legally go on holiday while on sick leave?

 

For employers, the starting point must always be the legal position rather than instinctive expectations about what “sick leave” should look like. UK employment law does not treat sick leave as a period during which all other statutory rights are suspended. Understanding what the law allows, and just as importantly what it does not allow employers to prevent, is critical to avoiding unlawful decision-making.

From a legal standpoint, an employee can go on holiday while on sick leave if they choose to do so and request annual leave in accordance with the Working Time Regulations 1998. There is no statutory rule that prohibits an employee who is signed off sick from taking holiday, travelling abroad or engaging in activities consistent with recovery. This applies whether the sickness absence is short-term or long-term.

This position is rooted in the principle that sick leave and annual leave serve different legal purposes. Sick leave exists to allow an employee time away from work because they are unfit to perform their duties. Annual leave exists to provide rest and leisure time, and to protect health and safety over the longer term. The law recognises that these purposes can overlap but does not treat them as mutually exclusive. For wider context on employer duties around working time, rest and leave, see working time and rest and our overview of working time rules.

 

1. Does the type of illness matter?

 

Although the law does not distinguish between types of illness when determining entitlement to holiday, the nature of the condition is highly relevant to employer decision-making. The key question is not whether the employee is “sick”, but whether the proposed holiday is inconsistent with the reason they are unfit for work.

For physical injuries or conditions, there may be an obvious inconsistency. An employee signed off with a serious back injury who books an activity-heavy holiday may raise legitimate questions. Equally, an employee with a physical condition may be unfit for work but perfectly capable of rest-based travel that does not contradict medical advice.

Mental health conditions require particular care. Employees signed off with stress, anxiety or depression may be medically advised to take a break from their usual environment, travel or engage in restorative activities. In these cases, a holiday may actively support recovery rather than undermine it. Employers who assume dishonesty in these circumstances expose themselves to significant discrimination risk. For practical context, see signed off work with stress.

What matters legally is whether the holiday undermines the credibility of the medical evidence, not whether it conflicts with an employer’s assumptions about how sick leave should be spent.

 

2. Can employers lawfully prevent holidays during sick leave?

 

Employers often assume they can prohibit holidays during sick leave through policy wording. This is a common and risky mistake. While employers can regulate the timing of annual leave to meet business needs, they cannot impose a blanket ban on taking statutory holiday during sickness absence.

Under the Working Time Regulations, employers must not prevent an employee from taking their statutory holiday entitlement. A policy that automatically disallows holiday requests during sick leave, without room for case-by-case assessment, is likely to be unlawful. The same applies to informal practices that amount to an unwritten ban.

That does not mean employers are powerless. Employers are entitled to require employees to request holiday formally, to provide relevant information where appropriate, and to justify decisions based on legitimate business or compliance grounds. What they cannot do is treat sickness absence as an automatic disqualifier from taking annual leave.

 

3. What employers must decide at this stage

 

When an employee requests to go on holiday while on sick leave, the employer must make an active decision rather than defaulting to refusal or approval. This decision should be based on three core considerations: whether granting the request would unlawfully interfere with statutory holiday rights, whether the proposed holiday is consistent with the medical basis of the sickness absence, and whether there are legitimate operational reasons to regulate the timing of the leave.

Failing to engage with this decision properly is where legal exposure most often arises. Employers who reflexively say “no” because the employee is signed off sick risk breaching working time law. Employers who reflexively say “yes” without considering evidence or impact risk undermining absence management and setting unhelpful precedents.

Section Summary: UK employment law allows employees to go on holiday while on sick leave, provided they request annual leave properly. Employers cannot impose blanket bans or rely solely on internal policy to override statutory rights. The legality of a holiday during sick leave depends not on assumptions, but on medical consistency, proportional assessment and lawful control of timing. Employers who understand this boundary are far better placed to manage risk before it escalates.

 

Section B: What must an employer do when an employee requests holiday during sick leave?

 

When an employee requests to take holiday while on sick leave, the employer’s legal exposure is shaped less by the outcome of the decision and more by how that decision is reached. UK employment law expects employers to exercise judgement, not rely on blanket rules or assumptions. A failure to do so is what typically leads to tribunal claims, particularly where mental health or long-term absence is involved.

The law does not require employers to automatically approve holiday requests during sick leave. However, it does require employers to assess those requests lawfully, proportionately and in a way that does not unlawfully interfere with statutory holiday rights. This distinction is critical. Refusal is not prohibited, but unjustified refusal is, especially if it has the effect of frustrating the employee’s ability to take their statutory leave.

 

1. Are employers required to approve holiday requests during sick leave?

 

An employer is not legally obliged to approve every holiday request made by an employee on sick leave. Employers retain the right to control the timing of annual leave, including during sickness absence, provided that control is exercised within the boundaries of the Working Time Regulations 1998 and does not prevent the employee from taking their statutory entitlement.

The key restriction is outcome-based: an employer must not refuse leave in a way that prevents an employee from taking their statutory holiday entitlement altogether, either in the current leave year or, where applicable, through lawful carry-over. In practice, employers should be cautious about refusing requests from employees on long-term sickness absence without a plan for how the employee will be able to take their statutory leave.

Refusals should be capable of justification, for example, by reference to genuine operational constraints, the need to coordinate absence cover, or a legitimate compliance concern about how the request has been made. Employers should avoid relying on “business needs” as a catch-all without explaining why the specific request cannot be accommodated and how statutory leave will still be taken.

 

2. How should employers assess whether a holiday request is legitimate?

 

The assessment should focus on evidence, not suspicion. Employers are entitled to consider whether the proposed holiday is consistent with the reason the employee is unfit for work. This does not mean demanding full medical disclosure, but it does mean engaging sensibly with the information already available, such as the fit note, duration of absence and any previous communication about recovery. For practical guidance on interpreting fit notes, see fit note guidance for employers.

Where a fit note simply states that the employee is unfit for work, this does not automatically mean that a holiday would be inconsistent with medical advice. Many conditions, particularly stress-related conditions, do not prevent travel or rest-based activities. Employers who treat the absence of detailed restrictions as evidence of abuse risk acting unreasonably.

If there is genuine uncertainty, the employer’s role is not to second-guess medical judgement but to seek clarification where appropriate. This may involve asking the employee whether the holiday is compatible with their recovery or, in longer-term cases, considering an occupational health referral. What it should not involve is surveillance, assumptions or informal evidence-gathering that could later be criticised as intrusive or discriminatory.

 

3. Should sick leave be paused and holiday pay applied?

 

If an employee requests holiday during sick leave and the employer agrees, sick leave should be paused for the duration of the holiday. During that period, the employee is entitled to holiday pay rather than sick pay. The employee cannot receive both at the same time.

This distinction has practical payroll and cost implications. Employers should ensure that payroll teams understand when statutory sick pay or contractual sick pay stops and when holiday pay applies. Where holiday pay calculations include variable elements such as overtime, errors can create backpay risk. See holiday pay on overtime for related considerations.

Once the holiday period ends, sick leave can resume if the employee remains unfit for work. Employers should avoid treating the holiday as evidence that the employee is now fit to return unless there is clear medical support for that conclusion.

At this stage, employers should document the decision and rationale, including how statutory rights were considered, how medical consistency was assessed and what operational factors were weighed. Good record-keeping is often central to defensible decision-making. See employer record-keeping under working time law.

Section Summary: Employers are not required to approve every holiday request during sick leave, but they are required to assess requests lawfully and proportionately. The decision must balance statutory holiday rights, medical context and operational needs. The greatest risk arises not from refusal itself, but from unjustified, poorly reasoned or undocumented decisions that interfere with legal entitlements.

 

Section C: What are the risks if employers get this wrong?

 

When disputes arise over employees going on holiday while on sick leave, the legal and commercial consequences for employers often far exceed the original issue. In most cases, the risk does not stem from the employee’s conduct but from how the employer responds. Missteps at this stage can escalate quickly into claims that are costly, time-consuming and reputationally damaging.

 

1. Unlawful denial of statutory holiday rights

 

One of the most significant risks is unlawfully preventing an employee from taking their statutory holiday entitlement. Under the Working Time Regulations, employees are entitled to a minimum of four weeks’ paid annual leave each leave year, and employers must not take steps that have the practical effect of denying that entitlement. Where an employee is unable to take this statutory leave because of sickness, the law allows for carry-over in defined circumstances.

Claims arising from breaches of the Working Time Regulations can result in backdated holiday pay, compensation and legal costs. These claims are often brought alongside other causes of action, increasing both complexity and exposure. Employers should also recognise the longer-tail liability that can arise when accrued holiday becomes payable on termination. For related risk context, see holiday entitlement when leaving a job.

 

2. Discrimination and disability-related risk

 

Sickness absence that involves mental health conditions, chronic illness or long-term impairment may engage the Equality Act 2010. Employers who refuse holiday requests or discipline employees based on assumptions about illness risk claims of direct discrimination, indirect discrimination or failure to make reasonable adjustments.

Not every episode of stress or ill health will meet the legal test for disability. However, where a condition has a substantial and long-term adverse effect on day-to-day activities, disability protections may apply and employers should not assume otherwise without proper assessment. Employers should also consider whether workplace changes are needed to support recovery and return. See reasonable adjustments and failure to make reasonable adjustments.

Mental health cases are particularly high-risk. An employer who treats an employee’s decision to go on holiday as evidence of dishonesty, without considering whether the activity supports recovery, may be seen as penalising the employee because of their condition. Discrimination claims are uncapped, so even where the employer believes it is acting to protect business interests, the financial and reputational consequences of an adverse finding can be severe.

 

3. Constructive dismissal and breakdown of trust

 

Heavy-handed or inflexible handling of holiday during sick leave can undermine the implied duty of trust and confidence. Employees who feel that their illness is being questioned, policed or used against them may resign and bring claims for constructive unfair dismissal.

These claims often arise not from a single decision but from a pattern of behaviour: repeated refusals without explanation, intrusive questioning, or inconsistent treatment compared to other employees. Once trust breaks down, even legally defensible decisions may be viewed through a hostile lens by a tribunal.

Beyond legal claims, there are operational risks. Mishandling sickness and holiday issues can damage morale, increase attrition and deter employees from being open about health issues. In sectors where talent retention is critical, this can have long-term cost implications. It can also weaken absence controls where employees perceive decision-making as arbitrary rather than evidence-based. Where employers are using absence metrics as part of a wider strategy, ensure these tools support consistency rather than punitive assumptions. See absence management for related considerations.

Section Summary: The primary risk for employers lies not in allowing or refusing holiday during sick leave, but in unlawful interference with statutory rights, discriminatory assumptions and poor process. The legal, financial and reputational costs of getting this wrong can be significant, particularly where mental health or long-term absence is involved.

 

Section D: Can an employee be disciplined for going on holiday while on sick leave?

 

Employers often assume that an employee going on holiday while on sick leave automatically amounts to misconduct. This assumption is legally dangerous. UK employment law does not treat holiday during sick leave as wrongdoing in itself. Discipline is only justified where there is clear evidence that the employee has acted dishonestly, misrepresented their condition or breached a reasonable management instruction.

The key issue for employers is not whether the employee went on holiday, but whether that conduct undermines the legitimacy of the sickness absence or breaches contractual or policy obligations in a way that can be objectively justified.

 

1. When does holiday during sick leave justify disciplinary action?

 

Disciplinary action may be justified where going on holiday provides credible evidence of malingering or dishonesty. This might arise where the nature of the holiday is plainly inconsistent with the medical basis for the sickness absence, or where the employee has provided false or misleading information about their condition. For further context on evidential indicators and safe handling, see malingering employee faking illness.

For example, an employee signed off with a condition that explicitly restricts travel or physical activity may struggle to justify a holiday that directly contradicts those restrictions. Similarly, an employee who claims to be incapacitated but is discovered engaging in activities that clearly demonstrate work capability may face legitimate disciplinary scrutiny.

However, employers must be careful not to equate suspicion with proof. A holiday that appears inconsistent at first glance may still be medically justified. The absence of detail on a fit note does not amount to evidence of dishonesty, and employers should not infer misconduct simply because an employee appears well enough to travel.

 

2. Can employers discipline or dismiss employees during sick leave?

 

An employee can be lawfully disciplined or dismissed during a period of sick leave, provided the employer acts reasonably and follows a fair procedure. There is no legal requirement to postpone disciplinary action indefinitely simply because an employee is absent due to illness.

That said, procedural fairness is critical. Employers must give the employee a reasonable opportunity to participate in any disciplinary process, taking into account their health. This may involve adjusting meeting formats, allowing representation, postponing hearings where medically necessary or relying on written submissions. Employers should ensure their processes align with a fair and consistent disciplinary framework. See disciplinary procedures.

Dismissal during sick leave carries heightened risk where the underlying illness may be a disability. Employers must ensure that any disciplinary decision is not influenced by the illness itself and that reasonable adjustments to the process have been considered. Failure to do so can render an otherwise lawful dismissal unfair or discriminatory.

Where dismissal is being considered, ensure that the reason and process are robust, documented and proportionate. See dismissing an employee for related employer considerations.

 

3. How should employers investigate suspected abuse safely?

 

Where an employer suspects that an employee has abused sick leave by going on holiday, the investigation should be proportionate and evidence-led. The aim should be to establish facts, not to confirm suspicions.

Employers should start by seeking the employee’s explanation. There may be legitimate reasons for the holiday, including medical advice, pre-booked arrangements or personal circumstances that are not immediately apparent. Jumping straight to disciplinary action without this step is likely to be criticised by a tribunal.

In longer-term absence cases, an occupational health assessment may be appropriate to clarify whether the holiday is compatible with the employee’s condition. Employers should avoid covert surveillance or informal monitoring, which can create privacy and data protection issues and undermine trust.

Employers should also be cautious about treating social media posts or third-party reports as conclusive evidence. Context matters, and isolated images or comments rarely tell the full story.

Section Summary: Going on holiday while on sick leave is not misconduct in itself. Employers can discipline or dismiss only where there is clear, objective evidence that the employee has acted dishonestly or inconsistently with their medical position. Fair process, proportional investigation and sensitivity to disability risk are essential to defensible enforcement decisions.

 

Section E: What about holiday accrual and carry-over during sick leave?

 

Holiday accrual and carry-over during sick leave is an area where employers frequently underestimate their exposure. Errors here often remain hidden until employment ends or a dispute arises, at which point liabilities can be substantial. Understanding the legal distinction between different types of holiday entitlement is essential for accurate compliance.

 

1. Does holiday continue to accrue during sick leave?

 

Employees continue to accrue statutory annual leave while on sick leave, regardless of the length of their absence. In legal terms, this protection is clearest in relation to the core four weeks of statutory leave under the Working Time Regulations. This right cannot be excluded by policy.

The position in relation to the additional 1.6 weeks of statutory leave under UK law is more nuanced. Accrual of this additional entitlement depends on the terms of the employment contract or workplace policy. Many employers choose to allow accrual for the full 5.6 weeks, but this is not automatic unless contractually provided.

Enhanced contractual holiday entitlement above the statutory minimum will also accrue or not depending on contractual wording. Employers who fail to distinguish between statutory and contractual leave often apply rules incorrectly, creating unintended liabilities.

 

2. When must unused holiday be carried over?

 

Where an employee is unable to take their statutory four weeks of annual leave because they are on sick leave, they are entitled to carry that leave over into the next leave year. This is not a discretionary benefit; it is a legal requirement triggered by inability to take leave due to sickness, not by a simple choice not to take leave.

The carried-over leave must be used within 18 months of the end of the leave year in which it accrued. This 18-month limitation is derived from case law rather than explicit statutory wording, but it is now well established and relied upon in practice.

Employers should also recognise the termination risk: unused statutory holiday may become payable when employment ends, especially if sickness absence has prevented the employee from taking leave. For related employer exposure, see holiday entitlement when leaving a job.

 

3. Can employers limit or control carry-over?

 

Employers can lawfully limit carry-over where an employee has been medically able to take leave but has chosen not to do so. Clear communication and active management of holiday entitlement are therefore essential, particularly for employees on long-term sick leave. See long-term sickness absence for related absence management considerations.

Policies that attempt to prohibit carry-over altogether, or that apply rigid deadlines without regard to sickness absence, are likely to be unlawful. Similarly, employers who do not inform employees of their ability to take holiday during sick leave may find it harder to rely on limitation rules later.

From a risk management perspective, employers should ensure that holiday policies clearly explain accrual and carry-over rules, distinguish between statutory and contractual leave, and set out how long-term sickness absence will be handled. Payroll and HR systems should be aligned to reflect these distinctions accurately.

Section Summary: Statutory holiday continues to accrue during sick leave, and unused statutory leave must be carried over where the employee has been unable to take it due to illness. The greatest risk for employers lies in failing to distinguish between different types of leave and in applying inflexible or poorly communicated carry-over rules.

 

Section F: Can employees travel or do other activities while on sick leave?

 

Employers often encounter difficulty when employees on sick leave are seen travelling, socialising or engaging in everyday activities. These situations frequently generate suspicion and frustration, but they rarely justify immediate action. The legal test is not whether an employee appears active, but whether their activities are inconsistent with being unfit for work.

 

1. Is travelling abroad inconsistent with being on sick leave?

 

There is no rule in UK employment law that prevents an employee from travelling abroad while on sick leave. Travelling, including international travel, does not automatically undermine a sickness absence. What matters is whether the travel is compatible with the medical reason the employee is absent from work.

An employee may be unfit to work but still fit to travel. This is particularly common in cases involving mental health conditions, where a change of environment may support recovery. It may also apply where an employee is physically restricted from working but able to travel with appropriate adjustments.

Employers who treat overseas travel as evidence of dishonesty without considering medical context risk acting unreasonably. Any assessment must be grounded in the nature of the illness, the advice contained in the fit note and any information provided by the employee.

 

2. What everyday activities are generally acceptable?

 

Employees on sick leave are not required to be housebound or inactive. Activities such as shopping, walking, socialising or attending appointments are often compatible with being unfit for work. Observing an employee carrying out normal daily tasks does not, by itself, indicate malingering.

In many cases, medical advice encourages individuals to remain active or engaged rather than isolated. Employers should be particularly cautious about drawing conclusions from isolated observations or third-party reports, which rarely provide sufficient context to justify disciplinary action.

 

3. Can employees work elsewhere while on sick leave?

 

Working elsewhere while signed off sick is a more serious issue. If an employee is unfit to perform their contracted duties but capable of working for another employer or in self-employment, this may raise legitimate questions about the genuineness of the sickness absence.

However, even here, caution is required. The alternative work may differ significantly in demands, hours or environment. Employers should investigate carefully and avoid assumptions. Contractual restrictions on secondary employment, confidentiality obligations and conflict of interest clauses may also be relevant.

If an employee is found to be undertaking work that is incompatible with their stated illness or that breaches contractual obligations, disciplinary action may be justified. The decision must still be based on evidence and fair process. Employers should also distinguish between genuine sickness absence and unauthorised absence scenarios. See unauthorised absence from work for related employer considerations.

When concerns arise about an employee’s activities during sick leave, the employer’s response should be measured. Immediate disciplinary action or accusatory communication is rarely appropriate. Instead, employers should seek clarification, consider medical input and assess whether there is a genuine inconsistency between the activity and the sickness absence.

Where uncertainty persists, occupational health input can provide objective guidance and reduce the risk of acting on incomplete information. Employers should also be mindful of data protection and privacy obligations when gathering or relying on information about an employee’s activities.

Section Summary: Employees on sick leave may legitimately travel and engage in everyday activities, provided those activities are consistent with their medical condition. Employers should focus on medical compatibility rather than appearances, and reserve disciplinary action for cases where there is clear, objective evidence of inconsistency or dishonesty.

 

Going on holiday while on sick leave FAQs

 

 

1. Can an employee legally go on holiday while on sick leave?

 

Yes. UK employment law does not prohibit an employee from going on holiday while on sick leave. An employee can request to take annual leave during a period of sickness, and this may be lawful provided the request is handled in line with the Working Time Regulations 1998. The key issue is whether the holiday is consistent with the reason the employee is unfit for work, not whether they are absent due to illness.

 

2. Can an employer refuse a holiday request if the employee is signed off sick?

 

An employer can refuse a holiday request, but only where there is a legitimate and lawful reason for doing so. Employers cannot impose a blanket refusal simply because an employee is on sick leave. A refusal must not prevent the employee from taking their statutory holiday entitlement altogether, either in the current leave year or, where applicable, through lawful carry-over.

 

3. Does taking holiday pause sick leave and sick pay?

 

Yes. If an employee takes approved holiday during sick leave, sick leave is paused for that period and holiday pay applies instead. The employee cannot receive sick pay and holiday pay at the same time. Once the holiday ends, sick leave can resume if the employee remains unfit for work.

 

4. What if an employee is sick during their holiday?

 

If an employee becomes sick before or during a period of annual leave, they can choose to treat that time as sick leave instead, provided they follow the employer’s sickness reporting procedures and any reasonable evidential requirements. This allows the employee to take the holiday at a later date when they are well enough to enjoy it.

 

5. Do employees continue to accrue holiday while on sick leave?

 

Employees continue to accrue statutory holiday during sick leave. This applies most clearly to the core four weeks of statutory annual leave. Accrual of the additional 1.6 weeks, and any enhanced contractual holiday, depends on the terms of the employment contract or workplace policy.

 

6. Can unused holiday be carried over if an employee is off sick?

 

Yes, where the employee has been unable to take their statutory holiday due to sickness. In these circumstances, they are entitled to carry over up to four weeks of unused statutory leave into the next leave year. This carried-over leave must generally be used within 18 months of the end of the leave year in which it accrued.

 

7. Can an employee be disciplined for going on holiday while on sick leave?

 

Going on holiday while on sick leave is not misconduct in itself. An employer may only discipline an employee where there is clear, objective evidence that the holiday is inconsistent with the medical basis for the sickness absence or that the employee has acted dishonestly. Discipline must follow a fair process and take account of any disability-related issues. See disciplinary procedures.

 

8. Is travelling abroad while on sick leave allowed?

 

Travelling abroad while on sick leave is not automatically prohibited. Whether it is acceptable depends on whether the travel is compatible with the employee’s medical condition. Employers should assess this based on medical evidence rather than assumptions.

 

9. How should employers handle concerns about misuse of sick leave?

 

Employers should investigate concerns proportionately and based on evidence. This usually involves seeking the employee’s explanation and, where appropriate, medical input such as occupational health advice. Employers should avoid surveillance, assumptions or aggressive questioning, as these approaches often create legal risk.

 

Conclusion

 

For UK employers, the question of whether an employee can go on holiday while on sick leave is not a question of permission, but of lawful decision-making. Employment law allows employees to take holiday during sickness absence, and employers who treat sick leave as an automatic bar to annual leave expose themselves to unnecessary legal risk.

The most significant compliance failures in this area arise from assumptions rather than abuse. Blanket refusals, inflexible policies and suspicion-driven responses are far more likely to lead to tribunal claims than a carefully assessed holiday request. This risk is particularly acute where sickness absence involves mental health conditions or long-term illness, which may engage disability protections under the Equality Act 2010.

Employers must actively decide how to respond to holiday requests during sick leave by balancing statutory holiday rights, medical context and genuine operational needs. That decision should be evidence-based, proportionate and clearly documented. Where concerns arise about misuse, employers must investigate fairly and avoid conflating everyday activity or travel with dishonesty.

From a strategic perspective, clear policies, consistent application and informed HR decision-making are essential. Getting this right protects not only legal compliance, but also workforce trust, absence management credibility and long-term operational stability. For wider employer guidance and compliance context, see our employment law resources.

 

Glossary

 

TermDefinition
Sick LeaveA period during which an employee is absent from work because they are medically unfit to perform their duties.
Statutory Annual LeaveThe minimum paid holiday entitlement under the Working Time Regulations, comprising four weeks of core leave and an additional 1.6 weeks under UK law (with the additional element subject to contract and policy treatment in practice).
Working Time Regulations 1998UK legislation governing working hours, rest periods and statutory holiday entitlement. See Working Time Regulations 1998.
Fit NoteMedical evidence issued by a healthcare professional confirming that an employee is unfit for work or may be fit with adjustments. See fit note guidance for employers.
Holiday PayPay an employee is entitled to receive when taking annual leave, calculated in accordance with statutory and contractual rules.
Carry-overThe ability to transfer unused statutory holiday into a subsequent leave year, particularly where statutory leave could not be taken due to sickness.
MalingeringThe act of exaggerating or feigning illness. In employment law, allegations of malingering require objective evidence and careful investigation. See malingering employee faking illness.
Equality Act 2010UK legislation protecting employees from discrimination, including discrimination arising from disability and a duty to make reasonable adjustments where the statutory test is met.
Constructive DismissalA situation where an employee resigns in response to an employer’s fundamental breach of contract, commonly linked to loss of trust and confidence.
Occupational HealthAn independent medical assessment service used by employers to assess fitness for work and support evidence-based absence management decisions.

 

Useful Links

 

ResourceDescription
Working Time Regulations 1998Detailed employer guidance on statutory holiday entitlement, accrual, carry-over and compliance under UK working time law.
Working time rulesOverview of employer obligations on working hours, rest breaks and annual leave.
Fit note guidance for employersHow to interpret fit notes and manage medical evidence lawfully during sickness absence.
Long-term sickness absenceEmployer guidance on managing extended sickness absence, risk and return-to-work planning.
Disciplinary proceduresHow to run fair and lawful disciplinary processes, including during periods of sick leave.
Dismissing an employeeLegal requirements and risks when considering dismissal, including in sickness-related cases.
Reasonable adjustmentsEmployer duties under the Equality Act 2010 where an employee’s condition may amount to a disability.
UK employment law hubCentral resource for UK employers on employment law compliance and risk management.
ACAS guidance on sickness absencePractical guidance on managing sickness absence fairly and consistently.
GOV.UK holiday entitlement guidanceOfficial government guidance on statutory holiday rights and employer obligations.

 

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About our Expert

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Anne Morris

Founder and Managing Director Anne Morris is a fully qualified solicitor and trusted adviser to large corporates through to SMEs, providing strategic immigration and global mobility advice to support employers with UK operations to meet their workforce needs through corporate immigration.She is recognised by Legal 500 and Chambers as a legal expert and delivers Board-level advice on business migration and compliance risk management as well as overseeing the firm’s development of new client propositions and delivery of cost and time efficient processing of applications.Anne is an active public speaker, immigration commentator, and immigration policy contributor and regularly hosts training sessions for employers and HR professionals.
Picture of Anne Morris

Anne Morris

Founder and Managing Director Anne Morris is a fully qualified solicitor and trusted adviser to large corporates through to SMEs, providing strategic immigration and global mobility advice to support employers with UK operations to meet their workforce needs through corporate immigration.She is recognised by Legal 500 and Chambers as a legal expert and delivers Board-level advice on business migration and compliance risk management as well as overseeing the firm’s development of new client propositions and delivery of cost and time efficient processing of applications.Anne is an active public speaker, immigration commentator, and immigration policy contributor and regularly hosts training sessions for employers and HR professionals.

Legal Disclaimer

The matters contained in this article are intended to be for general information purposes only. This article does not constitute legal advice, nor is it a complete or authoritative statement of the law, and should not be treated as such. Whilst every effort is made to ensure that the information is correct at the time of writing, no warranty, express or implied, is given as to its accuracy and no liability is accepted for any error or omission. Before acting on any of the information contained herein, expert legal advice should be sought.