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Pro rata salary calculator
Pro rata salary = full-time salary × your hours ÷ full-time hours. A £35,000 job advertised pro rata at 3 days a week pays £21,000 a year, which is about £1,553.30 a month after tax and NI in 2026/27.
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Get Savyit freeHow to calculate pro rata salary
- Take the full-time salary in the advert.
- Divide your weekly hours by the full-time hours (often 37.5).
- Multiply the two. By days it's the same: salary × days ÷ 5.
"Pro rata" means the advertised figure is the full-time equivalent. You're paid your share of it, and you get the same share of holiday: 5.6 weeks a year, so 16.8 days if you work 3 days a week.
Pro rata table: £35,000 full time
| Pattern | Hours | Pro rata salary | Take-home / month | Per day |
|---|---|---|---|---|
| 4.5 days | 33.75 | £31,500 | £2,183.30 | £71.78 |
| 4 days | 30 | £28,000 | £1,973.30 | £64.88 |
| 3.5 days | 26.25 | £24,500 | £1,763.30 | £57.97 |
| 3 days | 22.5 | £21,000 | £1,553.30 | £51.07 |
| 2.5 days | 18.75 | £17,500 | £1,343.30 | £44.16 |
| 2 days | 15 | £14,000 | £1,133.30 | £37.26 |
| 1 day | 7.5 | £7,000 | £583.33 | £19.18 |
| 30 hours | 30 | £28,000 | £1,973.30 | £64.88 |
| 25 hours | 25 | £23,333 | £1,693.30 | £55.67 |
| 20 hours | 20 | £18,667 | £1,413.30 | £46.46 |
| 16 hours | 16 | £14,933 | £1,189.30 | £39.10 |
Pick your full-time salary
What that take-home means per day
Split £1,553.30 a month with the 50/30/20 rule. The wants slice is the one to watch: it's your daily fun money.
Tax year 2026/27. An estimate for planning, not tax advice: your payslip can differ with tax codes, benefits, pension schemes and credits we don't model. Rates from the official source.
Questions
How much is 25k pro rata?
£25,000 is the full-time pay. At 22.5 of 37.5 hours (3 days) you get £15,000 a year, about £1,193.30 a month after tax.
What does £35,000 per annum pro rata mean?
It's the full-time figure. Work 3 days a week and you're paid £21,000, 3/5 of it.
Is pro rata your actual salary?
No. The pro rata figure in a job advert is the full-time equivalent. Your actual pay is your share of it.
Do I get pro rata holiday?
Yes. Part-timers get 5.6 weeks a year in proportion: 16.8 days if you work 3 days a week, 22.4 days on 4 days.
Does pro rata pay change my tax code?
No. The Personal Allowance is yearly, so on part-time pay more of what you earn is tax-free.
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Estimates for planning, not financial advice. Everything is calculated in your browser; nothing you type is sent anywhere. Updated 2026-10-29.