About How Long Is It?
What We Do
Free UK tax calculators using current 2026/27 HMRC rates. Salary take-home, self-employed Self-Assessment, Stamp Duty across England/Scotland/Wales, Limited Company versus Sole Trader, and Capital Gains Tax — each one shows the band-by-band working, not just a final number. Plus a handful of practical date utilities (working days excluding bank holidays, age calculator, countdowns).
Built on Official Rates
All tax calculations read from a single rate config file kept in sync with HMRC, gov.uk, Revenue Scotland, and the Welsh Revenue Authority. We update after each Budget — not when we get round to it. Every figure is verifiable against the published tax bands; we link to the official source pages from each calculator. We're not a substitute for a qualified adviser, but the numbers we show match what HMRC's own tools would show for the same inputs.
No Nonsense
No accounts, no email harvesting, no pop-ups, no AI assistant. Just type your numbers, get the calculation, expand the "Show working" section if you want to see how it was derived. The page loads quickly because most of it is rendered ahead of time. We try to be the calculator you bookmark instead of the calculator you click once and bounce.
Built in the UK · Last reviewed April 2026