SavyitSavyit / Free tools / £21,000 pro rata: what you'll actually earn
£21,000 pro rata: what you'll actually earn
£21,000 pro rata at 3 days a week is £12,600 a year, or £1,049.30 a month after tax and NI. At 4 days it's £16,800.
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Get Savyit free£21,000 pro rata by days and hours
| Pattern | Hours | Pro rata salary | Take-home / month | Per day |
|---|---|---|---|---|
| 4.5 days | 33.75 | £18,900 | £1,427.30 | £46.92 |
| 4 days | 30 | £16,800 | £1,301.30 | £42.78 |
| 3.5 days | 26.25 | £14,700 | £1,175.30 | £38.64 |
| 3 days | 22.5 | £12,600 | £1,049.30 | £34.50 |
| 2.5 days | 18.75 | £10,500 | £875.00 | £28.77 |
| 2 days | 15 | £8,400 | £700.00 | £23.01 |
| 1 day | 7.5 | £4,200 | £350.00 | £11.51 |
| 30 hours | 30 | £16,800 | £1,301.30 | £42.78 |
| 25 hours | 25 | £14,000 | £1,133.30 | £37.26 |
| 20 hours | 20 | £11,200 | £933.33 | £30.68 |
| 16 hours | 16 | £8,960 | £746.67 | £24.55 |
How 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.
Full time, £21,000 takes home £1,553.30 a month. See £21,000 after tax →
Nearby salaries
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 £21,000 pro rata for 3 days?
£12,600 a year (3/5 of £21,000), or £1,049.30 a month after Income Tax and NI.
How much is £21,000 pro rata for 4 days?
£16,800 a year, or £1,301.30 a month after tax.
What is £21,000 pro rata for 20 hours?
£11,200 a year, if full time is 37.5 hours.
How much holiday do I get part-time?
5.6 weeks a year in proportion to your days: 16.8 days on 3 days a week, 22.4 on 4.
More free tools
Estimates for planning, not financial advice. Everything is calculated in your browser; nothing you type is sent anywhere. Updated 2026-10-29.