Overtime Calculator
See what your overtime pays and how much of it you keep after tax, at plain time, time and a half, double time or your own rate.
Your overtime
Overtime rates explained
| Rate | Multiplier | On £14 an hour |
|---|---|---|
| Plain time | × 1 | £14.00 |
| Time and a quarter | × 1.25 | £17.50 |
| Time and a half | × 1.5 | £21.00 |
| Double time | × 2 | £28.00 |
How much overtime do you keep?
Overtime sits on top of your normal pay, so all of it is taxed at your marginal rate. A basic-rate taxpayer keeps about 72% of overtime pay (less with a student loan), a higher-rate taxpayer about 58%.
Auto-enrolment pension contributions usually apply to overtime too, which this calculator includes when you set a pension percentage.
Sources
Figures are checked against these official sources. Last reviewed 7 November 2026.
Common questions
How is time and a half calculated?
Multiply your normal hourly rate by 1.5. If you earn £14 an hour, time and a half is £21 an hour.
Is overtime taxed more than normal pay?
No. Overtime is taxed at the same rates as the rest of your pay. It can feel like more because it is all taxed at your top rate, and a big overtime month can look higher on one payslip until it evens out across the year.
Do employers have to pay extra for overtime?
There is no legal right to a higher overtime rate in the UK. Your contract sets the rate. However, your average pay across all hours worked must not fall below the minimum wage.
How do I find my hourly rate from a salary?
Divide your yearly salary by 52, then by your contracted weekly hours. On £28,000 and 37.5 hours that is £14.36 an hour.
Can I be made to work overtime?
Only if your contract says so. Even then, most workers cannot be made to work more than 48 hours a week on average unless they have opted out in writing.