UK statutory calculators

Work out what you are actually owed

Twenty-two calculators built on UK statutory rules — every figure cited to its source and dated, so you can check it rather than trust it.

No sign-up. Nothing stored. Every figure shows its workings.

Hours and pay

Tax and pensions

  • Take-home pay calculator

    Your take-home pay is what is left after income tax, National Insurance, and any pension or student loan deductions.

  • Pay rise calculator

    What a pay rise is actually worth once tax and National Insurance have taken their share.

  • Cost of employing someone

    What an employee costs beyond their salary — employer National Insurance and the minimum pension contribution, using the current rates.

  • Workplace pension calculator

    What goes into your workplace pension from you, your employer and tax relief — and what it actually costs your take-home pay.

  • Mileage claim calculator

    What you can claim tax free for using your own car, motorcycle or bicycle for work.

Time off

Family leave

Leaving a job

  • Redundancy pay calculator

    Statutory redundancy pay is worked out from three things: how long you have worked there, how old you were during each of those years, and your weekly pay.

  • Notice period calculator

    Notice is asymmetric, and most people do not realise by how much.

  • PENP calculator

    How much of a termination payment is taxed as earnings because notice was not worked.

  • Holiday pay when you leave

    What you are owed for holiday you accrued but did not take before your last day.

  • Unfair dismissal basic award

    The basic award for unfair dismissal, worked out from your age, service and weekly pay.

Why these figures can be trusted

  • Cited to source

    Every statutory rule links to the GOV.UK page or the legislation it comes from, and carries the date it was last checked.

  • Shows its workings

    Every result breaks down step by step. If you cannot see how a figure was reached, treat that as a fault.

  • Four UK jurisdictions

    Scotland has its own income tax bands and Northern Ireland its own employment limits. Both are handled properly.

  • Honest about grey areas

    Where the law is genuinely unsettled, the tool says so instead of quietly picking an interpretation.

More than calculators

  • Letter templates

    Fill-in letters to send your employer, each citing the rule it rests on.

  • Guides

    The rules explained, with the cases and edge cases that decide how they apply.

  • Statutory rates

    Every current figure in one table, dated, with its source.

  • Everything on this site

    All the calculators, guides and templates, by subject and A to Z.

Every statutory figure was last checked against its source on 21 September 2026.