Overtime Tax Calculator
How much of your overtime do you actually keep? Calculate your take home on extra hours.
How Is Overtime Taxed?
Overtime is taxed at your marginal rate — the rate that applies to the next pound you earn on top of your salary. This is why overtime feels heavily taxed. Use our bonus calculator for one-off payments, or the main calculator for your full take home pay.
What This Calculator Does
This calculator shows how much you'll actually take home from overtime pay, factoring in the higher marginal tax rate that often applies to additional earnings. It is designed for employees working extra hours who want to see their actual take-home from overtime.
How the Calculation Works
Overtime is taxed as part of your total annual income, not separately. If overtime pushes you into a higher tax band, the extra hours are taxed at the higher rate. The calculator shows the marginal tax rate on each hour of overtime.
Common Scenarios
Earning £30,000 basic with 5 hours/week overtime at time-and-a-half: your overtime is taxed at 32% (20% tax + 12% NI), giving you £10.20/hour net on a £15/hour overtime rate. If your total income crosses £50,270, the marginal rate jumps to 42%.
Related Calculators
You might also find these useful: Bonus Tax, Pay Rise, Minimum Wage. Or use our main salary calculator for a complete take-home pay breakdown.