Pro Rata Salary Calculator
Enter a full-time equivalent (FTE) salary and your part-time hours or days to see your pro rata salary and 2026/27 take-home pay.
£
Work out by
hours
hours
Pro rata salary
£21,000.00
Fraction of full-time60.0%
Monthly (gross)£1,750.00
Weekly (gross)£403.85
Annual take-home£18,640.08
Monthly take-home£1,553.34
Income tax£1,686.00
National Insurance£673.92
Pro rata means "in proportion". Your part-time salary is the full-time equivalent multiplied by the fraction of full-time hours (or days) you actually work.
Take-home figures use 2026/27 England / Wales / NI income tax bands, National Insurance (letter A) and the standard 1257L tax code. For pension, student loan, Scotland residence or other adjustments, run the number through the main take-home calculator.
How pro rata salary is worked out
- Take the full-time (FTE) salary for the role.
- Divide your actual weekly hours or days by the full-time hours or days.
- Multiply the FTE salary by that fraction — that's your pro rata annual salary.
- Tax and National Insurance are then calculated on the pro rata figure.