UK Calculators
Pick a calculator below. Each one shows the rates and assumptions it uses, and everything runs in your browser.
Take-home pay calculator
Work out your take-home pay after income tax, National Insurance and pension, using 2026/27 rates for England, Wales, Northern Ireland and Scotland.
Open →Salary sacrifice pension calculator
See how a salary sacrifice pension contribution changes your take-home pay, and how much income tax and National Insurance it saves, using 2026/27 rates.
Open →Self-employed tax calculator
Estimate income tax and Class 4 National Insurance on your self-employed profit for 2026/27, and how much to set aside for your tax bill.
Open →Stamp duty calculator
Calculate Stamp Duty Land Tax on a home in England or Northern Ireland, including first-time buyer relief, the 5% second-home surcharge and the non-resident surcharge.
Open →Mortgage repayment calculator
Work out your monthly mortgage repayment, total interest and loan-to-value, and see how overpaying could shorten the term and save interest.
Open →Loan repayment calculator
See your monthly loan repayment, total interest and payoff date, and how much interest a monthly overpayment could save. Uses UK-style APR.
Open →Credit card payoff calculator
Find out how long it takes to clear a credit card balance with a fixed monthly payment, and how much interest you will pay on the way.
Open →Compound interest calculator
See how savings or investments could grow with compound interest and regular monthly contributions, with a year-by-year breakdown.
Open →Savings goal calculator
Find out how much to save each month to reach a savings target by a set date, allowing for what you have already saved and the interest you earn.
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