This guide is maintained as a current resource for July 2026 and covers only the laws of England and Wales. Information is for general guidance, not legal advice. Consult a qualified solicitor for advice specific to your situation.
Comprehensive guide to how long‑term sickness absence affects dismissal rights in England and Wales, covering unfair dismissal, capability dismissals, disability discrimination, reasonable adjustments, procedural requirements, and practical steps for employees and employers under UK employment law.
Long‑term sickness absence is one of the most sensitive and legally complex issues in employment law in England and Wales. When an employee is off work for an extended period due to illness, both the employer and employee must understand how this affects dismissal rights, statutory protections, reasonable organisational responses, and potential claims at an employment tribunal. Employers must balance operational needs with legal duties, while employees should know their rights and the protections available under unfair dismissal and discrimination law. This article explains these concepts in a clear, structured way, drawing on up‑to‑date authoritative guidance and case law.
Defining Long‑Term Sickness Absence
Long‑term sickness absence generally refers to an employee's prolonged absence from work due to illness. There is no fixed legal definition of “long term” in statute, but in practice this typically means absences that extend beyond a few weeks or months and have no clear end date. Absences of this duration can engage rights and duties that differ from short‑term or intermittent sickness leave.
Statutory sick pay (SSP) is usually paid for up to 28 weeks, after which entitlement may end, though this is separate from employment rights related to dismissal.
Can an Employer Dismiss Because of Sickness Absence?
Yes. An employer can lawfully dismiss an employee who is off work due to sickness, including long‑term absence, but only if certain legal requirements are met. Dismissal on the basis of sickness absence is treated as a capability dismissal - the dismissal arises because the employee cannot perform their job.
Key Requirements
Before dismissing for long‑term sickness absence, employers should:
- Carry out a reasonable investigation into the employee's medical condition, including obtaining up‑to‑date medical evidence where necessary;
- Consult with the employee about their absence and possible return to work;
- Consider whether reasonable adjustments can facilitate a return, especially if the absence is linked to a disability under the Equality Act 2010;
- Explore alternative roles or modifications to the job, where reasonable;
- Apply the employer's own sickness absence and capability procedures fairly and consistently.
Failure to follow these steps can lead to claims of unfair dismissal or discrimination. Employers should treat dismissal for long‑term sickness as a last resort after reasonable steps have been taken.
Unfair Dismissal and Long‑Term Sickness Absence
Employees can bring an unfair dismissal claim to an employment tribunal if they believe their dismissal was not handled fairly or was unjustified. To make such a claim, employees ordinarily must have been continuously employed for the qualifying period - currently two years for most unfair dismissal claims. (Proposed legislative changes may reduce this qualifying period to six months in future, but transitional arrangements apply).
Tribunal's Assessment
A tribunal considers whether the employer acted reasonably in treating long‑term sickness absence as a reason for dismissal. Factors include:
- The length of the employee's absence and likelihood of return;
- The impact of the absence on the employer's business and colleagues;
- Whether the employer made reasonable efforts to support the employee's return (such as modifications or alternative work);
- Whether the employer followed a fair procedure, including consultation and the opportunity for the employee to respond.
If the employer can show they acted within a “range of reasonable responses” to the situation, dismissal may be upheld.
Disability Discrimination Considerations
An employee's long‑term sickness absence may amount to a disability under the Equality Act 2010 if it has a substantial and long‑term adverse effect on their ability to carry out normal day‑to‑day activities. Employers must be careful not to treat a disabled employee less favourably because of something arising in consequence of their disability, unless the employer can justify the treatment as a proportionate means of achieving a legitimate aim.
Reasonable Adjustments
Where an employee's condition amounts to a disability, the employer must consider reasonable adjustments to help the employee stay in or return to work. Adjustments could include flexible working hours, altered duties, assistive equipment, or workplace modifications. Failure to make reasonable adjustments can give rise to a discrimination claim, even if the dismissal would otherwise be fair on capability grounds.
Consultation, Medical Evidence and Procedural Fairness
A fair process is critical in any dismissal linked to long‑term sickness absence. This involves consulting meaningfully with the employee, discussing medical evidence (such as fit notes or occupational health reports), and ensuring the employee can respond to concerns. Employers should consider delaying meetings if the employee cannot attend due to ill health and should document all steps taken.
Employment tribunal case law reinforces the importance of procedural fairness. In cases where employers have failed to explore return‑to‑work plans or have ended employment without adequate evidence or consultation, tribunals are more likely to find dismissal unfair.
Statutory Sick Pay and Other Benefits
While statutory sick pay and occupational sick pay do not themselves prevent dismissal, they form part of the context in which long‑term absence is managed. SSP is paid for up to 28 weeks, subject to eligibility, and other benefits such as Employment and Support Allowance may be available through separate statutory schemes.
Practical Steps for Employees
Employees experiencing long‑term sickness absence should:
- Keep records of medical evidence, including fit notes and occupational health assessments;
- Engage with their employer's return‑to‑work discussions;
- Seek clarification of any meetings or decisions in writing;
- Consider whether their condition might qualify as a disability under the Equality Act 2010;
- Seek early advice if they believe a dismissal might not be fair or compliant with legal requirements.
Practical Steps for Employers
Employers should ensure they:
- Follow a documented sickness absence and capability policy;
- Obtain and review medical evidence and occupational health reports;
- Consult with the employee regularly and sensitively;
- Consider reasonable adjustments where a disability may be involved;
- Only resort to dismissal when all reasonable steps to facilitate return or redeployment have been exhausted.
Common Questions
Does long‑term sickness automatically protect against dismissal?
No. Long‑term sickness absence does not automatically prevent dismissal, but employers must act fairly and comply with capability procedures.
Can I claim unfair dismissal if I've been dismissed while off sick?
Yes, provided you meet the qualifying period and can show the employer's decision was unreasonable or procedurally flawed.
What if my sickness is linked to a disability?
If your sickness amounts to a disability, you have additional protections, including the right to reasonable adjustments and protection from discrimination.
Final Thoughts
Long‑term sickness absence intersects with dismissal rights in complex ways. Employers must manage prolonged illness with careful attention to fairness, medical evidence, reasonable adjustments, and procedural rights. Employees should understand their rights to fair treatment, potential claims for unfair dismissal and discrimination, and the importance of engagement and documentation. Both parties benefit from clear procedures and early communication to navigate long‑term sickness absence in a legally compliant and humane manner.
