Tools

Money tools

Simple, honest calculators that give you an answer in minutes. They're free, there's nothing to sign up for, and your numbers never leave your browser.

Take-home pay

Salary calculator

See your real take-home pay for 2026/27 — income tax (including Scottish rates), National Insurance, pension and student loan, all worked out as you type.

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Home · England & NI

Stamp duty calculator

Work out your stamp duty in seconds — standard, first-time buyer and additional-property rates, with a full band-by-band breakdown.

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Home

Mortgage repayment calculator

Your monthly payment, the total interest over the term, and your loan-to-value — enter the price, deposit, rate and term.

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Home

Mortgage overpayment calculator

See how much time and interest a monthly overpayment could save you — and when you would be mortgage-free.

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Everyday · 50/30/20

Budget planner

Enter your take-home pay and drag the needs, wants and savings split — see each pot update live, and what the savings slice could grow into at real interest rates.

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Saving

Savings calculator

Watch compound interest work — see what a starting pot plus regular saving could grow into over time.

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Pensions

Pension calculator

A rough projection of what your pension pot could be worth by retirement — and the cost of waiting to start.

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Debt

Credit card payoff calculator

Add all your cards, set what you can afford each month, and see your debt-free date — plus whether a 0% balance transfer is worth it.

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Debt · snowball vs avalanche

Debt payoff calculator

Compare the snowball and avalanche methods across all your debts — which clears them fastest, and which costs least in interest.

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Your rights

Flight delay compensation checker

Three quick questions to find out if you could be owed up to £520 for a delayed or cancelled flight under UK261.

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Energy · updated monthly

Energy price cap tracker

The current capped rates, what a typical household pays, next quarter's forecast — and what the cap means for your own usage.

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Every calculator runs entirely in your browser — nothing is sent anywhere, and there's nothing to sign up for.