Turn a full-time salary into what you are paid for fewer days or hours, then see the take-home pay and the holiday that comes with it.
Pro rata pay = full-time salary × (your hours ÷ full-time hours). A job paying £30,000 for 37.5 hours a week pays £18,000 for 22.5 hours, because 22.5 ÷ 37.5 = 0.6. Working in days gives the same answer when every day is the same length: 3 days of 5 is also 0.6. The hourly rate does not change: it is £15.38 either way.
Everyone on regular hours is entitled to at least 5.6 weeks of paid holiday a year. On a 5-day week that is 28 days; part-time it is 5.6 × the days you work, so 16.8 days on 3 days a week. Employers can count bank holidays within it, and many contracts give more. Term-time and irregular-hours contracts accrue holiday differently and are not covered here.
Pro rata salary a year, and take-home pay a month in 2026/27 (England, Wales and Northern Ireland, no pension or student loan), on a 5-day full-time week.
| Full-time | 4 days | 3 days | 2 days |
|---|---|---|---|
| £25,000 | £20,000£1,493 a month | £15,000£1,193 a month | £10,000£833 a month |
| £30,000 | £24,000£1,733 a month | £18,000£1,373 a month | £12,000£1,000 a month |
| £35,000 | £28,000£1,973 a month | £21,000£1,553 a month | £14,000£1,133 a month |
| £40,000 | £32,000£2,213 a month | £24,000£1,733 a month | £16,000£1,253 a month |
| £50,000 | £40,000£2,693 a month | £30,000£2,093 a month | £20,000£1,493 a month |
Pro rata means "in proportion". A job advertised at £30,000 pro rata pays £30,000 for a full-time week; if you work fewer hours or days, you are paid the same share of it. On 3 days of a 5-day week that is 60%, or £18,000 a year.
Divide the hours (or days) you work by the full-time hours (or days), then multiply the full-time salary by the result. For example, 22.5 hours of a 37.5-hour week is 0.6, and 0.6 × £30,000 = £18,000.
£30,000 pro rata for 3 days a week is £18,000 before tax. In 2026/27 that leaves about £1,373 a month after Income Tax and National Insurance in England, Wales or Northern Ireland, with no pension or student loan.
Part-time workers on regular hours are entitled to at least 5.6 weeks of paid holiday a year, the same as full-time staff. In days that is 5.6 × the days you work a week: 16.8 days on a 3-day week, 22.4 on a 4-day week. The statutory minimum is capped at 28 days. Source: GOV.UK, Holiday entitlement.
No. Pro rata scales the salary, not the rate: the hourly rate is the same as the full-time job's. £30,000 for a 37.5-hour week is £15.38 an hour whether you work 37.5 hours or 15.
Because the first £12,570 is tax-free (the Personal Allowance) and National Insurance starts at the same point. A smaller salary has a larger share inside those allowances, so the take-home falls by less than the gross does.
Paid by the hour instead? See what an hourly rate comes to a year. For a full-time salary, see take-home pay from £10,000 to £200,000 or use the take-home pay calculator.
See our methodology. This is an estimate, not payroll or legal advice.