Best Practices For Creating A Fair Sick Leave Policy
A clear, legally compliant sick leave policy protects both employers and employees. It sets consistent expectations, reduces the risk of discrimination claims, and supports good absence management. This guide outlines the key elements of a fair sick leave policy for UK employers.
- A clear notification procedure — how and when employees should report absence, and to whom.
- Requirements for medical documentation — including when a self-certificate is sufficient and when a fit note is required.
- Details of Statutory Sick Pay (SSP) entitlement and any enhanced contractual sick pay arrangements.
- Reference to Employment and Support Allowance for employees who are no longer eligible for SSP.
- Return-to-work procedures, including phased return arrangements where applicable.
- How the Equality Act 2010 applies — particularly in relation to disability-related absence and reasonable adjustments.
- A trigger point for formal management review of recurring absences, applied consistently across all employees.
Ground the policy in current employment law
UK sick leave policy must comply with the Employment Rights Act 1996, SSP regulations, the Equality Act 2010, and relevant ACAS guidance. Policies that conflict with statutory entitlements or discriminate — directly or indirectly — against protected characteristics are unenforceable and expose employers to tribunal risk.
Apply policy consistently
Inconsistent application of sick leave rules is one of the most common grounds for employment tribunal claims. Line managers must apply policy uniformly, and HR teams should monitor for patterns that could indicate discriminatory treatment — for example, disproportionate disciplinary action against employees with disability-related absence.
Use technology to support administration
Modern HR software systems can automate absence tracking, trigger management alerts, and maintain auditable records. Accurate records are essential for defending any subsequent legal claims and for identifying patterns that may indicate systemic wellbeing issues.
What a sick leave policy cannot do
A sick leave policy cannot lawfully remove statutory entitlements. Employees are entitled to SSP provided they meet eligibility criteria — a contractual policy cannot reduce this. Similarly, policies cannot legitimately penalise disability-related absence without a proper reasonable adjustments process.
Employers in all UK jurisdictions — England, Scotland, Wales, and Northern Ireland — are bound by employment law. Policies should be reviewed periodically, particularly after changes in legislation or ACAS guidance.
Does a UK employer have to have a written sick leave policy?
There is no statutory requirement to have a separate written sick leave policy, but employers must include details of sick pay entitlements in the written statement of employment particulars. A clear, separate policy document is best practice and helps manage absence consistently.
Can an employer dismiss someone for taking too much sick leave?
In some circumstances, dismissal for capability reasons may be lawful — but only after a fair and thorough process, medical evidence, consideration of reasonable adjustments, and ACAS code compliance. Where absence is disability-related, the Equality Act 2010 provides additional protections and dismissal without proper process is high risk.
What is the Bradford Factor and should we use it?
The Bradford Factor is a formula used to measure the impact of frequent short-term absences. It is used by some employers as an absence trigger, but should be applied with care — it can inadvertently penalise employees with disability-related or mental health absences. Always take individual circumstances into account rather than acting on the score alone.
When should a fit note be required?
Employees can self-certify for the first seven calendar days of sickness. After seven days, a fit note from a registered healthcare professional is legally required. Employers can include this requirement in their policy and may, in some circumstances, request one sooner for specific operational reasons — provided this is applied consistently and not discriminatorily.
Need Fit Notes for Your Employees?
GMC-registered UK doctors can issue fit notes and medical letters supporting your absence management processes, subject to clinical review. Documentation is only issued where clinically appropriate.
Request a Fit Note
