Overtime Pay Calculator

Enter your normal hourly rate, your contracted hours per week, the overtime hours you work each week, and the multiplier your contract pays (1.5 for time and a half, 2 for double time). The overtime rate, weekly overtime pay and annual totals update instantly.

Worked example: at £15 an hour, 5 overtime hours on time and a half pays £15 × 1.5 × 5 = £112.50 extra a week, or about £487.50 a month and £5,850 a year on top of regular pay.

There is no legal requirement for employers to pay a higher rate for overtime — UK law only requires that your average pay across all hours worked doesn’t fall below the National Minimum Wage. Enhanced rates like time and a half (1.5×) or double time (2×) come from your contract, not statute.

Overtime pay = hourly rate × multiplier × overtime hours.

Overtime isn’t taxed at a special rate — it’s simply added to your gross pay and taxed through PAYE like the rest of your earnings. A big overtime month can push you into a higher band temporarily, but the annual figures even out across the tax year.

The Working Time Regulations also limit most workers to an average 48-hour week (including overtime) unless you’ve signed an opt-out.