Estimate your overtime rate, gross overtime pay and rough take-home pay using UK income tax and employee National Insurance thresholds. Use it for one extra shift, regular overtime, or a quick before-you-say-yes sense check.
Assumes England/Wales/Northern Ireland style income tax bands for a simple planning estimate and employee NI at 8% between the primary threshold and upper earnings limit, then 2% above that. Good for quick budgeting; not a payroll substitute.
This calculator first works out your base hourly rate from salary and contracted weekly hours, then applies your overtime multiplier and estimates the marginal tax and NI on the extra earnings.