UK Money Toolkit

Four focused UK money calculators in one place. Move between tools while keeping your entries on this device, with no account or sign-up.

Finance calculations run on your device. Results are estimates for planning, not financial, tax, legal or mortgage advice. Each tool states its assumptions and limits.

Take-Home Pay

Estimate pay after Income Tax, employee National Insurance, pension and student-loan deductions. Compare salaries, calculate pro-rata pay and explore statutory pay using the tax years included in the app.

Stamp Duty

Estimate residential SDLT in England and Northern Ireland, LBTT in Scotland or LTT in Wales, including supported first-time buyer, additional-property and non-resident rules.

Mortgage

Explore repayment or interest-only payments, fees, higher-rate comparisons and overpayments, with a year-by-year balance schedule.

Tip & Bill Splitter

Account for included service, split every penny exactly, use optional weighted shares and round individual payments up when useful.

Buying a Home guide

The launcher can guide you from the existing Stamp Duty calculator to the existing Mortgage calculator. It does not copy or invent any calculations between them. The launcher locally remembers your theme, recently used tool order and guide progress in versioned storage.

The Clear Toolkit launcher history action removes only local keys beginning with toolkit.. Each calculator owns its separately namespaced saved fields, so this launcher reset does not clear calculator data.

Read the privacy notice or visit Expand Digital for the standalone tools.