Did You Know You Can Claim Back Annual Leave IF on Sick Leave?

It is incredibly frustrating to fall ill during your hard-earned time off. However, many UK workers are unaware that if they become sick during their annual leave, they have the legal right to convert their annual leave into sick leave and reclaim those holiday days to use at a later date.

While this is an important and empowering right, it is important to understand how it works, the legal precedents that protect it, and the potential drawbacks you need to consider.

The Legal Foundation & Your Right to Recover

Under UK employment law, the distinction between annual leave and sick leave is clear...annual leave is for rest, relaxation, and leisure, while sick leave is strictly for recovery from illness. You cannot be expected to "rest and relax" while your body is fighting off an illness!!

This principle was firmly established by the European Court of Justice (ECJ) and is now codified in UK law. The landmark cases of Stringer v. HMRC and NHS Leeds v. Larner set the precedent. The courts articulated that it is inconsistent with the fundamental aim of paid holiday to compel a sick person to use their annual leave when their primary need is to recover.

Recent updates to the Working Time Regulations 1998 (amended for 2024 to protect these rights post-Brexit) explicitly state your entitlements in Regulation 13:

(14) Where, as a result of taking a period of statutory leave in any leave year, a worker is unable to take some or all of the annual leave to which the worker is entitled in that leave year under this regulation, the worker is entitled to carry forward such untaken leave into the following leave year.

(15) Where, as a result of taking a period of sick leave in any leave year, a worker is unable to take some or all of the annual leave to which the worker is entitled in that leave year under this regulation, the worker is entitled to carry forward such untaken leave into the following leave year provided it is taken by the end of the period of 18 months from the end of the leave year in which the entitlement originally arose.

In simple terms: if you are too sick to take your statutory annual leave, that leave is not lost. You must be allowed to take it at a later date, and you have an 18-month window to do so.

How to Claim It in Practice

You cannot simply return to work after your holiday and announce that you were sick. To successfully convert your annual leave to sick leave, you must follow your employer's standard sickness reporting procedures:

The Word of Caution

While you absolutely have this right, it is important to be aware of your company's absence management policies. Converting annual leave to sick leave counts toward your total sickness record. If you trigger your company's absence thresholds (often known as the Bradford Factor or similar trigger points), excessive sickness could potentially lead to absence management meetings or, in extreme cases, the termination of your employment contract.

Always weigh your options and ensure you are familiar with your HR handbook.

Further Reading and Support

If you need more information on how this applies to your specific situation, ACAS provides excellent, free guidance.

Read more via ACAS: If an employee is sick while on holiday