Pro-rata salary calculator
Enter the full-time salary and your working hours or days to work out part-time pay. You can also work backwards to find the full-time equivalent.
Enter your pay details
Your calculation
£21,000.00 gross per year · £18,639.60 annual take-home
60.0% of full-time hours. Regular full-year statutory leave equivalent: 126.0 hours (capped at 28 normal working days). Bank holidays may be included; irregular-hours rules differ.
Monthly view · updates as you change your details
- Take-home pay£1,553.30
- Income Tax£140.50
- National Insurance£56.20
- Pension£0.00
- Student loans£0.00
- Other sacrifice£0.00
| Component | Yearly | Monthly | 4-weekly | Fortnightly | Weekly | Daily | Hourly |
|---|---|---|---|---|---|---|---|
| Gross income | £21,000.00 | £1,750.00 | £1,615.38 | £807.69 | £403.85 | £80.77 | £17.95 |
| Income Tax | -£1,686.00 | -£140.50 | -£129.69 | -£64.85 | -£32.42 | -£6.48 | -£1.44 |
| National Insurance | -£674.40 | -£56.20 | -£51.88 | -£25.94 | -£12.97 | -£2.59 | -£0.58 |
| Pension contribution | £0.00 | £0.00 | £0.00 | £0.00 | £0.00 | £0.00 | £0.00 |
| Student loans | £0.00 | £0.00 | £0.00 | £0.00 | £0.00 | £0.00 | £0.00 |
| Other salary sacrifice | £0.00 | £0.00 | £0.00 | £0.00 | £0.00 | £0.00 | £0.00 |
| Take-home pay | £18,639.60 | £1,553.30 | £1,433.82 | £716.91 | £358.45 | £71.69 | £15.93 |
The estimate uses regular pay, your selected deductions and the tax year’s standard allowance, reduced for higher income where needed. It leaves out custom tax codes, taxable benefits, other taxable income and relief-at-source pensions. Daily and hourly figures use five days and 37.5 hours a week unless you change the working-hours settings. All conversions use 52 paid weeks. Your pay dates and payroll rounding may give different payslip amounts.
Use the full calculator for bonus, overtime and other salary sacrifice →
How it works
Divide the full-time annual salary by full-time weekly hours, then multiply by your hours. The calculator works out tax on that reduced gross salary. Cutting full-time take-home pay by the same percentage would give a different result.
Comparing the result with your payslip
Check your tax year, country, gross pay and pension method first. A custom tax code, bonus, earlier pay or other income can make your payslip different from an annual estimate.
Sources: HMRC Income Tax rates, employee NI rates and Scottish Income Tax. Checked 23 October 2026. For help with your own tax or debts, speak to HMRC, payroll or an adviser.
Useful tools and help
See the hourly pay calculator.
Once you know your yearly pay before tax, check what you could take home after deductions using your own pension and student loan settings.