Holiday Pay Back Claims: Bear Scotland, Harpur Trust, and Irregular-Hours Workers

UK holiday pay is governed by the Working Time Regulations 1998 (WTR), which implement the EU Working Time Directive. The framework has two components:

• Regulation 13 (4 weeks) — the EU-derived entitlement. Holiday pay during this period must reflect "normal remuneration" — i.e., what the worker normally earns, including overtime, commission, shift premia, and other regular elements.
• Regulation 13A (1.6 weeks) — the additional UK entitlement, bringing the total to 5.6 weeks. The pay for this is only required to be "a week's pay" under the narrow ERA 1996 definition (basic salary plus contractual elements).

The distinction matters: many holiday pay claims succeed for the EU 4 weeks but fail for the additional 1.6 weeks. Most worker pay claims focus on the 4-week period.

Five cases that set the modern framework:

• Williams v British Airways [2011] (CJEU) — flight allowances must be included in holiday pay because they reflect "intrinsic" parts of the job.
• Lock v British Gas [2014] (CJEU) — commission must be included.
• Bear Scotland v Fulton [2015] — non-guaranteed overtime must be included. Crucially, the EAT held that a 3-month gap between underpayments breaks the "series of deductions" for the purposes of section 23 ERA 1996, capping older back-claims.
• Chief Constable of NIPS v Agnew [2023] (Supreme Court) — overturned Bear Scotland on the 3-month gap point in Northern Ireland; this was applied by the Court of Appeal more widely.
• Harpur Trust v Brazel [2022] (Supreme Court) — part-year workers (term-time only, irregular-hours workers in single annual contracts) are entitled to 5.6 weeks of paid holiday based on 12.07% of weeks actually worked, with pay calculated on the average of the last 52 weeks of work, not pro-rated by proportion of year worked.

The cumulative effect: many employers were underpaying holiday for years. Claims worth thousands of pounds can be brought against employers who used basic salary only for holiday pay.

The Employment Rights (Amendment, Revocation and Transitional Provision) Regulations 2023 introduced significant changes for "irregular-hours workers" and "part-year workers", effective for leave years starting on or after 1 April 2024:

• 12.07% accrual method — holiday accrues as 12.07% of hours worked in the pay reference period (typically each month). This is the figure that produces 5.6 weeks over a 46.4-week working year.
• Rolled-up holiday pay permitted — for these workers, employers can pay a "rolled-up" enhancement of 12.07% on each pay packet, instead of paid time off. This is the first time rolled-up holiday pay has been formally permitted in UK law since Robinson-Steele v RD Retail Services [2006] (CJEU) restricted it.
• Identification requirement — the rolled-up pay must be clearly identified on payslips so the worker can see they have received it.
• Brazel overturned for irregular-hours — the new statutory regime supersedes Brazel for workers in the new category. Brazel still applies to part-year workers in continuous contracts (e.g., term-time-only teachers in permanent posts).

These changes reduce employer cost and admin burden but mean some workers (particularly term-time-only teachers and seasonal workers in single-contract arrangements) now receive less than under Brazel.

Process:

1. Gather your pay records for the period in question. Check holiday payments against your earnings in the 12 weeks (or 52 weeks for irregular-hours from April 2020) immediately before each holiday.
2. Calculate the underpayment — for each holiday day taken, what should you have been paid (including overtime, commission, allowances) and what were you actually paid?
3. Raise the issue informally with HR — many employers will settle when shown an accurate calculation, particularly if multiple staff are affected.
4. If denied, lodge a formal grievance.
5. Start ACAS Early Conciliation within 3 months less one day of the most recent underpayment.
6. File a Tribunal claim for unlawful deduction of wages (section 13 ERA 1996). The claim can cover a "series of deductions" — but be cautious about the 3-month gap rule.
7. Alternatively, breach of contract in the County Court — this has a 6-year limitation period but is harder for non-lawyers.

Three limits to be aware of:

• 3-month time limit — Tribunal claims for unlawful deduction must be brought within 3 months less one day of the most recent deduction. Earlier deductions can be part of a "series" but only if not broken by a 3-month gap.
• 2-year cap on back-claims — the Deduction from Wages (Limitation) Regulations 2014 cap any Tribunal claim for back-pay at 2 years.
• Series of deductions rule — Bear Scotland held that a 3-month gap between underpayments breaks the series; Agnew has cast doubt on this and the Court of Appeal in PSNI v Agnew Court of Appeal version moved towards a more flexible approach. Take advice on the current state of the law.

For very large historic claims (over 2 years), the County Court breach-of-contract route is preferable — 6-year limitation, no 2-year cap, but more procedurally complex.