Specialist tool
Overtime after tax calculator
Estimate how much overtime really adds after deductions and whether the extra hours are worth the net outcome.
Current tax-year framing
This overtime route is designed for salary interpretation and extra-hours decision support. It should be read as estimate-based guidance rather than payroll advice.
Updated for 2025/26 salary interpretation
Estimate-based outputs, not financial advice
Useful for overtime value and pay-efficiency checks
Gross overtime
£400
Net overtime value
£288
Effective net / hour
£14
New monthly take-home
£2,417
Decision insights
Net overtime value matters more than gross overtime value
At £20/hour gross, the effective net value is about £14.4/hour after deductions.
Compare against better baseline pay
Check whether a salary increase would outperform extra hours more cleanly.
Compare overtime vs bonus value
Useful when the choice is between one-off payment and extra hours.
Open the main calculator
Return to the full salary reading for broader context.