Skip to main content
PayPrompt

Clear answers to everyday money questions

Free calculators for pay, pensions, property and tax. No sign-up, and every rule checked against official sources.

Browse UK calculators

Covering the United Kingdom for now.

Start with these

Property and mortgages

Buy-to-let mortgage

Works out how much you could borrow and repay on a rental property.

Pensions

Pension annuity

Estimates the income a pension pot could buy as an annuity.

Pay and work

Holiday pay

Works out how much paid holiday you get and what it is worth.

Pay and work

Overtime pay

Works out what extra hours add to your pay.

Loans and borrowing

Loan repayment

Monthly payment and total interest on a loan.

Browse by topic

How we keep it accurate

  • Official sources only

    Every rule comes from government or regulator guidance, and we link to it.

  • Tested against real examples

    Results are checked against the worked examples governments publish.

  • Dated so you know it is current

    Each page shows when its rules were last checked.

  • Private by design

    Calculations run in your browser. Nothing you type is sent anywhere.

Read more about how PayPrompt works and how your privacy is protected.