Annual leave calculator
Work out how much holiday you have built up so far this leave year, and how much is left to take.
Uses your own holiday allowance. Not sure what it should be? The legal minimum is 5.6 weeks: use the holiday entitlement calculator.
Result
By 14 November 2026 you have built up 24.39 days of holiday, and 24.39 days of it is not taken yet.
days built up and not taken
| Built up so far | 24.39 days |
|---|---|
| Taken | 0 days |
| Built up and not taken | 24.39 days |
| Left for the whole year | 28 days |
Leave year from 1 January 2026. 28 days are left for the whole year.
Show the workings
| Step | Sum | Answer |
|---|---|---|
| Share of the leave year gone | 318 of 365 days | 87.12% |
| Holiday built up so far | 28 days × 318 ÷ 365 | 24.395 days |
| Built up and not taken | 24.39 − 0 taken | 24.395 days |
| Left for the whole year | 28 − 0 taken | 28 days |
What this leaves out or assumes
- Holiday is shown building up evenly through the year. In your first year, the law builds it up at a twelfth of the year's holiday at the start of each month, and your contract may have its own rules.
- If you leave, you are paid for holiday built up and not taken. If you have taken more than you have built up, your contract says whether you must pay it back.
Where the figures come from
This sum uses only the numbers you entered.
How holiday builds up
You are entitled to your full year's holiday, but it builds up as the leave year goes on. Halfway through the year you have built up about half of it. The calculator works that out by the share of the leave year that has gone by the date you choose, then takes off what you have taken.
In your first year with an employer, the law says holiday builds up at a twelfth of the year's holiday at the start of each month (regulation 15A of the Working Time Regulations). Your contract can be more generous.
If you are leaving your job
Holiday you have built up and not taken is paid when you leave, in your final pay. If you have taken more than you have built up, your employer can only take it back from your pay if your contract says so. GOV.UK explains holiday when you leave a job.
Checked against GOV.UK on 13 November 2026.