Agency Worker Holiday Entitlement UK 2026

Agency workers have two distinct sources of holiday entitlement and they stack rather than substitute. The base right comes from the Working Time Regulations 1998, which give every worker, regardless of contract type, a minimum of 5.6 weeks of paid leave per leave year. The second layer comes from the Agency Workers Regulations 2010 (often abbreviated AWR), which give agency workers the right to the same basic working and employment conditions as a comparable directly-employed worker after they have done the same job for the same hirer for 12 calendar weeks.

The practical effect is that until you cross the 12-week threshold, your only enforceable right is the 5.6 weeks (28 days for a standard 5-day week). Once you cross it, if the hirer's permanent staff get 33 days plus bank holidays, you should get 33 days plus bank holidays too, pro-rated for any reduced hours you work. The agency, not the hirer, is responsible for paying the holiday, but the agency must mirror whatever the hirer's comparable terms are.

This two-layer structure matters because the vast majority of agency placements end well before week 12. According to the GOV.UK agency worker rights guidance, short placements stay on the statutory minimum throughout. Longer placements (covering a maternity leave, an extended project, a multi-month NHS locum booking) are the ones where the AWR parity uplift becomes financially significant.

Agency workers are nearly always classified as irregular-hours workers under the post-April-2024 framework, because the hours they work in each pay reference period are wholly or mostly variable. That means the legal default for them is the 12.07% accrual method introduced by the Working Time (Amendment) Regulations 2023, which came into force on 1 April 2024.

The 12.07% figure comes from dividing the 5.6 weeks of statutory holiday by the remaining 46.4 working weeks in a year (52 minus 5.6). For every hour of work the agency credits roughly 7 minutes 15 seconds of paid holiday. Over a 35-hour week that produces 4.22 hours of holiday. Over a 40-hour week it produces 4.83 hours. Over a typical 8-hour Saturday shift at a one-off retail booking it produces just under an hour.

Because the accrual is hours-based rather than days-based, agency workers benefit from a transparent ledger. Every payslip should show a separate line for hours worked, hours of holiday accrued this period, and hours of holiday remaining in the leave year. If the payslip does not show this breakdown, the agency is in breach of the itemised pay statement requirements in the Employment Rights Act 1996.

Rolled-up holiday pay was unlawful in the UK from the 2006 European Court of Justice ruling in Robinson-Steele v RD Retail Services until the April 2024 reform. Since 1 April 2024 it is lawful again for irregular-hours workers, which captures most agency placements. Rolled-up pay means the agency adds 12.07% on top of your hourly rate every pay period instead of paying you separately when you take leave.

For a worker on £14 per hour, that adds £1.69 per hour, taking the effective rate to £15.69. Over a 35-hour week the rolled-up element is £59.15. Over a year that totals roughly £3,073, which is what you would otherwise have received as four weeks of paid leave at £700 per week, plus 1.6 weeks of additional leave at the same rate. The arithmetic ends in the same place; only the cashflow shape differs.

Three rules apply. First, the 12.07% line item must appear on the payslip as a separate entry. Second, the worker still has the legal right to take time off; the agency cannot use rolled-up pay as an excuse to deny holiday requests. Third, the hourly rate before the 12.07% uplift must not fall below the National Minimum Wage. ACAS guidance on checking holiday entitlement sets out the same three rules in worker-friendly form.

The 12-week clock under AWR 2010 starts on day one of an assignment with a particular hirer in a particular role. Each calendar week in which the worker does any paid work for that hirer counts as one week, even if the work is a single hour. The clock pauses (but does not reset) for breaks of up to six weeks, such as sickness absence, jury service, a workplace shutdown, or a school half-term gap on a teaching assistant booking.

Once the worker reaches week 12, the parity right applies prospectively. It does not back-pay weeks 1 to 12 to the higher level. If the hirer offers 30 days plus 8 bank holidays of contractual leave to permanent staff (so 38 days total per year, against 28 statutory), the agency worker on week 13 onwards should accrue at the rate of 38 days per leave year, pro-rated for any reduced working week. For most assignments that pushes the 12.07% rate up to roughly 16.39% (38 / 46.4 weeks of work that produce the leave).

Resets happen when the worker takes a new role with a different hirer, when they change to a substantively different role with the same hirer, or when they take a break of more than six weeks that is not covered by the exclusion list (sickness, pregnancy, jury service, statutory leave). A worker who is repeatedly assigned to the same NHS trust on three-month bookings with two-week gaps between them keeps clocking up qualifying weeks; one assigned to a sequence of unrelated retail and warehouse bookings does not.

Three failure modes are common. First, the agency may credit 12.07% but never show the line item on the payslip, making it impossible to verify. Second, the agency may roll up holiday pay into a vague "total earnings" figure without itemisation. Third, the agency may refuse to actually let the worker take time off, treating rolled-up pay as if it replaced the right to leave.

The first step in every case is a written request to the agency for the running holiday balance, the 12.07% accrual line on each payslip, and the leave-year start date. The agency must provide this. If they cannot or refuse, contact ACAS on 0300 123 1100 for free advice. ACAS early conciliation is mandatory before an Employment Tribunal claim.

For more serious or systematic breaches, the Employment Agency Standards Inspectorate (part of the Department for Business and Trade) regulates agencies and employment businesses in the UK. A complaint to EAS can trigger an investigation of the agency's practices across all its workers, not just the complainant.

An Employment Tribunal claim must be lodged within 3 months less one day of the last underpaid wage. Holiday pay underpayments are a series, so the clock runs from the most recent shortfall. From 6 April 2026 the new record-keeping duty (covered in our April 2026 record-keeping guide) requires the agency to keep holiday records for at least six years, which gives workers a clearer audit trail than was previously available.