UK Financial Calculators

Free, accurate tools for mortgages, tax, pensions, and more. Updated for the 2025/26 tax year.

Property

Monthly repayments, total interest, and mortgage comparisons.

SDLT, LBTT, and LTT for England, Scotland, and Wales.

Rental yield, mortgage costs, and Section 24 tax for landlords.

Take-home pay with income tax, NI, and student loan deductions.

Income tax, Class 4 NI, and take-home pay for sole traders.

Tax on dividends for directors, self-employed, and investors.

CGT on property, shares, and other assets with annual exemption.

Estimate IHT liability using nil-rate band thresholds.

Compound interest growth with regular or lump sum deposits.

Tax-free projections for Cash, Stocks & Shares, and Lifetime ISAs.

Project your retirement pot, drawdown, and State Pension.

See how inflation erodes purchasing power and affects your salary.

Plan Financial Independence and early retirement with UK tax rules, State Pension, and withdrawal strategies.

Repayments for personal loans, car finance, and credit.

See how long to clear your balance and save with extra payments.

Compare PCP, HP, and personal loan costs for buying a car.

Every calculator uses current HMRC rates and thresholds so you can plan with confidence.

Updated for the 2025/26 tax year with the latest HMRC bands.

All calculations run in your browser. No data is stored or sent anywhere.

No sign-ups, no paywalls. Every calculator is completely free.