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Pro rata salary calculator

What a part-time or part-year salary comes to in the current tax year, and the take-home pay on it, worked out line by line.

Enter your own figures and check the selected options. Results update automatically below as you type. Fields are required unless marked optional.

Where you pay income tax

Scottish rates apply if your main home is in Scotland. Wales uses the same rates as England.

Use the full-time salary from the job advert or contract, before tax and National Insurance (NI). Do not enter your reduced part-time salary.

Hours a week
Part of the tax year (optional)

For a job starting or ending during this tax year, enter the employment dates within the year. Blank dates use the start or end of the tax year. Both dates are included; weekends count as calendar days. Tax year: .

For the minimum wage check (optional)

Choose your age group to include a minimum wage check. Leave it unselected to skip the check.

Your estimate

Take-home pay here means salary after income tax and employee National Insurance (NI). Pension contributions, student loan repayments and other deductions are not included.

Enter your details above to see your estimate.

What pro rata means

Pro rata means in proportion. A part-time salary is the full-time salary scaled by the hours worked: half the hours gives half the salary, and the hourly rate stays the same. Holiday entitlement is scaled the same way; the pro rata holiday calculator works it out.

Income tax and National Insurance are worked out on the pay you actually receive, not on the full-time salary. The personal allowance of applies in full whatever your hours, so a salary below it pays no income tax. No National Insurance is due on pay below the primary threshold of a year, and if pay for the year is below the lower earnings limit of the year may not count towards your State Pension. The minimum wage applies to the hourly rate, however many hours you work.

If you start or leave part way through the tax year, pay for the year is in proportion to the calendar days employed. Income tax is due for the year on what you earn in it, with the whole personal allowance, so someone starting with no earlier income in the year owes less than a whole year at that rate would suggest. Under PAYE the allowance is spread across the year, so someone leaving may have had more deducted than is due and can claim the difference back. National Insurance is worked out on each payslip from the rate of pay in that period, not from the total for the year.

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