How this site is researched and checked

What we publish

Two things: a calculator that applies the statutory formula to your inputs, and written guidance explaining the rule behind each part of that formula. The calculator does arithmetic, not judgement. Where the law allows an employer to do something differently, the guidance says so rather than presenting one practice as universal.

Sources

Entitlement figures are derived from the Working Time Regulations 1998, in particular regulations 13, 13A and 16, and from GOV.UK and Acas guidance on holiday entitlement, carry-over and rolled-up holiday pay. Where we state a rate or a cap, the page names the provision or the GOV.UK publication it comes from.

• Working Time Regulations 1998 — the statutory entitlement and accrual rules.
• GOV.UK — the published guidance and any rate changes.
• Acas — practical interpretation, especially for irregular-hours and part-year workers.

How a page is produced

Each page is drafted against the primary source first, then checked line by line against the regulation or guidance. Calculations are tested with worked examples before publication, including the awkward cases: part-year workers, irregular hours, mid-year starters and leavers, and carry-over. If a worked example cannot be reproduced by hand from the page's own explanation, the page is not published.

Review cycle

Statutory rates and thresholds change, usually in April. Every page that quotes a rate is re-checked when GOV.UK publishes a change, and all pages are reviewed at least annually. The reviewed date shown on a page is the date the content was last checked against its sources, not the date it was first written.

Corrections

If something is wrong, tell us through the contact page and include the page and what you believe the correct position is. Errors in a statutory figure or a calculation are treated as urgent and corrected first. Substantive corrections are noted on the page itself so a reader can see what changed.

Advertising and independence

The site is free to use and may carry advertising. Advertising is not targeted at individuals and does not influence any figure or recommendation. Advertising is kept visually separate from the calculator and the guidance, and no advertiser reviews or approves content.

Limits

This is general guidance, not legal or professional advice. It cannot account for your contract, your employer's practice, or a dispute about your particular hours. For a specific problem, speak to Acas, Citizens Advice, or a solicitor. If a tribunal or a payroll dispute is involved, get advice before relying on any figure here.