Overtime Calculator UK
Calculate how much you'll earn from overtime hours in the UK. Enter your hourly rate, overtime hours and pay multiplier to see your overtime pay and total earnings.
Calculator
What this means
Overtime pay is typically calculated by multiplying your normal hourly rate by an overtime multiplier (often 1.5x or 2x) for each overtime hour worked. Your employment contract or workplace policy determines the exact rate.
How to use this calculator
- Enter your normal hourly rate.
- Add the number of overtime hours and your overtime multiplier (e.g. 1.5x).
- See your overtime pay and total earnings for the period.
Worked example
You earn £14 an hour and work 6 overtime hours at time-and-a-half.
- Overtime rate = £14 × 1.5 = £21 an hour.
- £21 × 6 hours = £126 of overtime pay.
You earn an extra £126 on top of your normal pay for that period.
Who this is for
- Hourly and shift workers paid extra for overtime.
- Anyone checking an overtime payment is correct.
- People weighing up whether extra hours are worth it after tax.
How overtime pay works in the UK
There is no legal minimum overtime rate in the UK — it is set by your contract. Many employers pay time-and-a-half (1.5x) or double time (2x), but some pay your normal rate for extra hours.
Whatever the rate, your average pay must not fall below the National Minimum Wage, and overtime is taxed like normal pay through PAYE — so the extra cash is worth a little less than the headline figure.
Frequently asked questions
There is no single legal overtime rate in the UK. Many employers pay time-and-a-half (1.5x) or double time (2x), but this depends on your contract and sector.
Employers are not legally required to pay extra for overtime unless your contract says so. However, your average pay must not fall below the National Minimum Wage.
Divide your annual salary by your contracted hours per year to get an hourly rate, then apply your overtime multiplier to the extra hours worked.
No — overtime is taxed at your normal rates. It can feel like more is taken if the extra pay pushes part of your income into a higher tax band that month, but it is not taxed at a special rate.
Only if your contract says so. There is no automatic legal right to extra pay for overtime, but your average hourly pay must stay at or above the National Minimum Wage.
Disclaimer
This calculator provides estimates for guidance only. It is not financial, legal or tax advice. Always check official sources or speak to a qualified professional before making decisions.
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