I wonder how I can handle employees misusing sick leave?

Sickness absence is a reality of working life, but suspected misuse of sick leave can disrupt operations, increase costs and undermine team morale. Employers need clear processes that balance fair treatment of genuinely unwell staff with proportionate steps where abuse is suspected.

This article explains the legal framework around sickness absence, outlines your obligations, and sets out practical actions to investigate and address potential misuse while managing legal and commercial risk.

What does the law say about sick leave?

Employees are entitled to take time off when unfit for work due to sickness or injury. They may qualify for Statutory Sick Pay (SSP) if the eligibility criteria are met under UK law. For absences for over seven days, employees must provide a fit note from an eligible healthcare professional, which will confirm whether the employee is either ‘not fit’ or ‘may be fit’ for work.

Employees are entitled to SSP from the first day of sickness absence and are either paid 80% of their earnings or the statutory flat rate of £123.25.

What are key employer obligations?

Employers should have a clear, accessible sickness absence policy that sets out notification requirements, evidence thresholds, absence review triggers and the potential consequences of misuse. Managers must apply the policy consistently to avoid allegations of unfairness or discrimination.

Records of absence, fit notes, return-to-work discussions and any adjustments should be kept accurate and confidential. Where an employee’s condition may be long-term or substantial, consider reasonable adjustments and obtain medical evidence/occupational health advice before taking formal action. Any disciplinary process for suspected misuse should be fair, based on a reasonable investigation, and proportionate to the evidence.

Suspected misuse may include false reporting, working elsewhere while certified unfit, repeated unexplained patterns, or failure to follow reporting rules.

What could employers do if they suspect employees are misusing sick leave?

Below are practical steps to manage concerns about potential misuse in a fair and structured way.

• Set expectations: Ensure contracts and sickness policies state reporting timelines, required evidence and the consequences of false reporting.
   
• Verify promptly: Hold return-to-work meetings, request fit notes as required and seek occupational health input where health issues may be complex.
   
• Identify signs of possible misuse: Look for objective indicators such as repeated absences around weekends or bank holidays, refused annual leave, inconsistent explanations, failure to follow reporting procedures, or evidence that conflicts with the stated reason for absence.
   
• Investigate before taking action: Avoid assumptions. Gather relevant evidence, document dates and patterns, review policy compliance, and invite the employee to explain the circumstances before deciding whether the concern is about health, conduct or both.
   
• Use the correct process: If the issue is genuine ill health, manage it under the sickness absence or capability process with support and reasonable adjustments where appropriate. If there is evidence of dishonesty or abuse, address it through the disciplinary procedure and ensure any sanction is proportionate.

What are the risks of getting this wrong?

Improperly managing sickness can lead to legal, financial and cultural harm. Taking a proportionate, evidence-led approach reduces exposure.

• Unfair dismissal: Dismissals without a fair investigation, a fair procedure, or a reasonable belief risk tribunal claims and compensation.
• Discrimination: Action taken without considering disability, pregnancy-related illness, or reasonable adjustments can lead to costly discrimination claims.
• Employee relations: Perceived mistrust or inconsistent application of policy damages morale, retention and productivity.
• Cost and disruption: Unmanaged absence increases over time, agency costs, and management time, and can impact client service and reputation.

Summary

A clear policy, consistent application and a fair, evidence-based process are the foundations for addressing suspected misuse of sick leave. Distinguish between capability and conduct, seek medical input where appropriate, and document decisions. Taking measured steps protects your business, supports genuine sickness, and reduces the risk of claims while maintaining productivity and trust.

Further Advice

If you have any questions on handling sickness absence or any other employment-related matters, our Peace of Mind Team is here to provide expert guidance. Our Document Audit Team can also assist in drafting relevant workplace policies.

Contact our Employment Team by emailing employment@warnergoodman.co.uk or calling 023 8071 7717.

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