UK Holiday Entitlement Explained: 5.6 Weeks and What It Means

Holiday entitlement in the UK is one of those areas where international employers often get caught out. The rules look simple on the surface: 5.6 weeks of paid annual leave per year. But the details matter. How do you calculate leave for part-time workers? Do bank holidays count towards entitlement? What happens when someone leaves mid-year? And what are your obligations under the Working Time Regulations 1998?

Get holiday entitlement wrong and you risk Employment Tribunal claims, back-payments, and unhappy staff. Get it right and you have a compliant, well-run operation that employees value.

This guide breaks down everything you need to know about UK holiday entitlement, including the calculations, carry-over rules, and common pitfalls. It also explains how Agility EOR manages holiday on your behalf through our Employer of Record service. For the broader UK employment law picture, see our hub.

How Much Holiday Are UK Workers Entitled To?

The statutory minimum holiday entitlement in the UK is 5.6 weeks per year, as set out in the Working Time Regulations 1998 (regulation 13). For a full-time employee working five days a week, this equals 28 days per year (5.6 multiplied by 5).

That 5.6-week figure is broken into two components:

4 weeks (20 days) from the Working Time Directive, the EU-origin rules that the UK retained after Brexit

1.6 weeks (8 additional days) added by the UK government in 2009

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Here is the important bit that confuses many employers: the 28 days can include bank holidays. You are not required to give bank holidays on top of the 28 days. You can mandate that bank holidays are taken as part of the 28-day entitlement, or you can offer them separately. The choice is yours, and it should be clearly stated in the employment contract.

In practice, what this means is that the statutory minimum is 28 days inclusive of bank holidays for a full-time worker. Many employers choose to offer more than the minimum as a competitive benefit. Offering 25 days plus bank holidays (effectively 33 days) is common in professional services, for example.

For international employers, the key takeaway is this: you are legally required to offer at least 28 days for a full-time worker. Offering less is a breach of the Working Time Regulations.

Bank Holidays in the UK

The number of bank holidays varies across the UK's nations:

England and Wales: 8 bank holidays per year

Scotland: 9 bank holidays per year

Northern Ireland: 10 bank holidays per year

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If your contract says "28 days including bank holidays," a full-time worker in England gets 20 days of discretionary leave plus 8 bank holidays. A worker in Northern Ireland on the same terms would get 18 days of discretionary leave plus 10 bank holidays.

Bank holidays are not automatically statutory in the sense that there is no legislation requiring employers to give them as paid days off. The entitlement comes from the contract of employment, not from a standalone bank holiday law. However, almost every employer in the UK gives bank holidays off in some form.

Some sectors, notably retail, hospitality, and healthcare, require employees to work bank holidays. This is perfectly lawful. The contract should state whether bank holidays are included in the entitlement and whether the employee may be required to work them.

How Do You Calculate Holiday for Part-Time Workers?

Part-time workers are entitled to the same 5.6 weeks of annual leave as full-time workers, but it is pro-rated based on the number of days they work.

The formula is simple:

5.6 multiplied by the number of days worked per week

For example:

• A worker on 4 days per week: 5.6 x 4 = 22.4 days per year
• A worker on 3 days per week: 5.6 x 3 = 16.8 days per year
• A worker on 2 days per week: 5.6 x 2 = 11.2 days per year
• A worker on 1 day per week: 5.6 x 1 = 5.6 days per year

You cannot round down. If the calculation results in a fraction of a day, you must round up to the nearest half day. For the 4-day worker above, 22.4 days becomes 22.5 days. Reducing part-time workers' holiday below the pro-rated entitlement is unlawful and constitutes part-time worker discrimination under the Part-time Workers (Prevention of Less Favourable Treatment) Regulations 2000.

A common mistake is to assume a part-time worker who does not work Mondays can never take bank holidays off. This is wrong. Bank holidays should be factored into the overall entitlement. If a Monday bank holiday falls on a day the part-time worker does not work, they do not get the day off, but they still get their full 5.6 weeks to use on their working days.

Zero-Hours and Irregular Hours Workers

For workers on zero-hours contracts or those with irregular hours, holiday calculation is more complex. Since the Employment Rights Bill 2024 introduced changes via the Employment Rights Act 2025, the government confirmed that holiday entitlement for irregular-hours workers will be calculated on the basis of 12.07% of hours worked in a pay period. This is based on the principle that 5.6 weeks is 12.07% of a 46.4-week working year (52 weeks minus 5.6 weeks of leave).

Under the 12.07% method, a zero-hours worker who works 40 hours in a week accrues 4.83 hours of holiday (40 x 0.1207). This approach was already common practice but has been formalised in the legislation.

For international employers dealing with flexible or project-based UK workers, getting this calculation right is essential. Errors in pro-rating are one of the most common sources of holiday pay disputes at Employment Tribunals.

For more on UK pay obligations, see our guide on PAYE.

Payment in Lieu of Holiday

The general rule is that payment in lieu of untaken statutory holiday is only permitted on termination of employment. You cannot routinely pay workers extra instead of letting them take holiday. The Working Time Regulations are designed to protect health and safety; workers need rest.

On termination, any accrued but untaken holiday must be paid out. For workers with variable pay, this is calculated using average earnings over the preceding 52 weeks (or the period of employment if shorter); workers with fixed pay are paid their normal weekly pay. Payment in lieu applies to all workers at the end of their employment, regardless of whether they resigned or were dismissed.

Deducting overpaid holiday from the final pay check is lawful if the employment contract contains a clawback clause. Without such a clause, making the deduction could be an unlawful deduction from wages under the Employment Rights Act 1996 (Part II).

For more on employment termination obligations, read our guide on UK termination and dismissal.

What Happens When Someone Leaves Mid-Year?

When an employee leaves part way through the leave year, they may be owed holiday pay or may have taken more holiday than they have accrued. Both scenarios are common and both need to be handled correctly.

Accrued but untaken holiday

At termination, the employer must pay the employee for any holiday they have accrued but not taken. Accrual is calculated proportionally. If the leave year runs January to December and the employee leaves at the end of June, they have accrued 6/12ths of their entitlement (so 14 days out of 28 for a full-time worker). Any untaken days must be paid at the average earnings rate.

Over-taken holiday

If the employee has taken more holiday than they have accrued, the employer can deduct the overpayment from the final salary, but only if there is a clawback clause in the contract. Without a contractual clause, you cannot recoup the money.

The calculation of a day's pay for holiday purposes uses the average weekly earnings over the 52-week reference period, excluding any weeks in which no remuneration was earned. This is designed to capture regular pay including overtime, commission, and other regular payments, not just basic salary. The Employment Rights (Employment Particulars and Paid Annual Leave) (Amendment) Regulations 2018 set out the detail.

A practical example: an employee on a £36,000 salary who has taken 15 days of leave but has only accrued 12 days at the point of leaving. The contract contains a clawback clause. Three days of over-taken leave can be deducted from the final pay. Three days at £36,000 divided by 260 working days is approximately £415.38 per day, so the deduction is around £1,246.15.

How Does an Employer of Record Handle Holiday?

An Employer of Record like Agility EOR manages holiday entitlement for your UK employees comprehensively.

Because the EOR is the legal employer of your UK team, the EOR's employment contracts comply with the Working Time Regulations from day one. The EOR sets the leave year, calculates entitlements for full-time and part-time workers, tracks accrual for those with irregular hours, and manages carry-over in accordance with the regulations.

Here is what that means in practice for you. Your UK employees submit holiday requests through the agreed process. The EOR tracks the balances, ensures statutory minimums are met, and handles any carry-over or payment in lieu on termination.

If an employee raises a complaint about holiday entitlement, the EOR handles it. If someone leaves mid-year with over-taken holiday, the EOR manages the clawback through the contract. You do not need to understand the nuance of the Working Time Regulations or worry about calculation errors.

For international employers without a UK entity, this removes a significant administrative and legal burden. Holiday entitlement rules are not complicated in principle, but the details, pro-rating for part-timers, carry-over for sickness, payment calculations on termination, are where mistakes happen and tribunals follow.

Agility EOR ensures every holiday obligation is met. Explore our UK Employer of Record service.