Annualised Hours Holiday Entitlement UK 2026

Annualised hours contracts specify total working hours per year rather than per week. They are used where demand varies seasonally or in waves: water utilities (peak summer demand for maintenance), garden centres (spring rush, winter slowdown), schools (term-time peaks, holiday lulls for non-teaching staff), tourism operators (summer surge), and increasingly in retail to give the employer flexibility around Black Friday, Christmas, and clearance periods.

The worker commits to a total annual hours figure (often 1,950, 2,028, or 2,080 hours, equivalent to 37.5, 39, or 40 hours per week averaged across the year). The employer commits to a salary or fixed hourly rate. The roster varies week to week within agreed maximum and minimum limits (typically 16 to 60 hours per week). Salary is paid in equal monthly or weekly instalments regardless of which weeks contain high or low rostered hours.

The model originated in UK manufacturing in the 1990s as a way to align labour supply with cyclical demand without resorting to layoffs in quiet periods. Today it is widespread in seasonal industries and in any business where the workload has predictable but non-uniform peaks. ACAS guidance on hours of work covers the annualised-hours model alongside other flexible patterns.

Statutory leave under the Working Time Regulations 1998 is 5.6 weeks of paid leave per year. For an annualised-hours worker, the easiest way to express that is in hours: 5.6 weeks at the average weekly hours equals the holiday hours. For a 40-hour standard week (2,080 hours per year) the holiday is 5.6 × 40 = 224 hours. For a 37.5-hour standard week (1,950 hours per year) it is 210 hours.

The contract typically structures this in one of two ways. The first carves the holiday out upfront: the contract states "1,950 gross hours per year, of which 210 are paid holiday, leaving 1,740 net rostered hours". The worker is rostered for 1,740 hours across the working weeks, takes 210 hours of paid leave during designated holiday weeks, and the salary is calculated on the gross 1,950.

The second integrates the holiday into the salary without expressly carving it out: the contract states "1,950 hours per year, £32,000 salary". The hourly rate of £16.41 is delivered against an effective 1,740 rostered hours (which would otherwise produce £28,553) plus 210 holiday hours (which delivers the remaining £3,447). Both structures produce the same outcome for the worker; the first is more transparent.

Booking holiday on an annualised-hours contract uses one of two methods. Either the worker specifies designated weeks at the start of the year (typically 4-6 weeks of fixed holiday, with the rest of the rostered hours flexed around them), or the worker books holiday hour-by-hour during the year against the agreed allocation.

The fixed-weeks model is more common in sectors with strong seasonal patterns (schools, garden centres, tourism). The worker takes their main holiday during the predictable quiet period (summer for schools, winter for garden centres, off-season for tourism operators) and the rest of the year is rostered intensively. The hour-by-hour model is more common in continuous-operation sectors where demand is variable but does not have a strong seasonal shape.

Salary continues uniformly throughout. In the holiday weeks, the worker is paid the standard weekly figure (annual salary / 52) without being rostered for any hours. In the intensive weeks, the worker is paid the same standard figure regardless of how many hours they work, up to the contractual maximum. Overtime above the contractual maximum or above the annual hours budget is paid separately at the overtime rate.

At the end of the annualised contract year, the employer reconciles actual hours worked against the contracted figure. If the worker has worked above the contracted hours (including holiday hours), the excess is paid as overtime at the contractual overtime rate. If the worker has worked below the contracted hours, the employer typically does not claw back the salary; the under-rostering is treated as the employer's problem to manage.

Holiday hours that are accrued but unused at year-end carry over under the same rules as any other worker. The 4 weeks of EU-origin leave carries over under the Stringer/Larner principles (limited circumstances including sickness, employer failure to encourage leave). The 1.6 weeks of UK additional leave carries over by written agreement only. For practical purposes most annualised contracts schedule the holiday weeks at fixed times of year so use-it-or-lose-it issues do not arise.

For contracts that span the leave year boundary, payroll typically does an interim reconciliation at the leave year end. Salary is unaffected; the reconciliation is a paperwork exercise that confirms hours worked, hours of leave taken, and any overtime balance. Errors in the reconciliation can be challenged within the normal 3-month tribunal window from the date the underpayment crystallises.

Annualised-hours contracts are subject to the same statutory protections as any other employment. The Working Time Regulations 1998 apply: 48-hour average weekly cap (over a 17-week reference period), 11-hour daily rest, 24-hour weekly rest, and 5.6 weeks of paid holiday. The National Minimum Wage applies to the actual hourly rate, not to a notional figure. The reference period for the NMW check is each pay reference period (typically monthly), so a low-hours month must still pay at or above the NMW for the actual hours worked.

The contract must specify the annual hours figure clearly. A vague "reasonable annual hours" clause is open to challenge. The contract must also specify the rostering rules: how much notice the worker gets of the roster (usually 4-8 weeks), the maximum and minimum weekly hours, and how peak weeks and off-peak weeks balance. GOV.UK employment contracts guidance covers the written statement requirement for all employment terms.

The risk on annualised contracts is the under-rostered worker who finds themselves with too few hours to use up the leave allocation. The remedy is to insist on the rostering schedule; the salary is owed regardless of whether the employer actually deploys the worker. Tribunal claims for unpaid wages run on the same 3-month-less-one-day clock.