All our UK calculators
Built around HMRC rules, regional taxes and real UK products.
Salary / Take-Home
Income tax, NI, student loans, pension, Scottish rates.
Mortgage & SDLT
Repayments, stamp duty (England, Scotland, Wales), overpayments.
Savings & ISA
Compound interest, ISA allowance, fixed vs easy access.
Pension / Retirement
Pension pot, employer match, State Pension, drawdown.
Debt Payoff
Snowball vs avalanche, credit cards, loans, overdrafts.
Budget Planner
50/30/20, council tax, energy, transport, monthly tracking.
Built for UK rules
Every calculator uses HMRC tax bands, NI thresholds and devolved rates (Scotland LBTT, Wales LTT).
No data sent
Calculations run in your browser. We don't track your figures or sell your data.
Plain-English guidance
Tooltips link to gov.uk and MoneyHelper so you can verify everything for yourself.
Best UK Cash ISAs right now
Tax-free interest on up to £20,000 a year.