Know what your money will actually do.
Free, fast calculators using the 2026/27 UK rates. No sign-up, no adverts in your face, and every number explained.
Take-Home Pay Calculator
Work out your take-home pay after income tax, National Insurance, student loan and pension for 2026/27.…
Self-Employed Tax Calculator
How much tax and National Insurance to set aside as a sole trader for 2026/27: income tax plus Class 4 NI on y…
Side Hustle Tax Calculator
How much tax you pay on side income alongside a job, using the £1,000 trading allowance or your actual costs, …
The £100k Tax Trap Calculator
See your real marginal tax rate between £100,000 and £125,140, where losing your personal allowance means 60%+…
Savings and ISA Growth Calculator
See how savings or a stocks and shares ISA could grow with a starting balance, monthly deposits and an interes…
Mortgage Overpayment Calculator
How much interest you save and how much sooner you're mortgage-free by overpaying each month.…