UK tax, worked out properly
Six calculators built on the published HMRC figures for the current tax year, with every source listed and every number shown.
Choose a test
Tax & money
Take-home pay
Income Tax, National Insurance, pension and student loan — every deduction shown separately.
Free · No sign-upStamp Duty
Including first-time buyer relief, the additional property surcharge and the cliff edge at £500,000.
Free · No sign-upDividend tax
Dividends sit on top of your other income — see exactly which band each slice lands in.
Free · No sign-upCapital Gains Tax
Your income decides the rate — the same gain costs different people different amounts.
Free · No sign-upUmbrella vs limited
Same day rate, both routes, every deduction shown — and why your umbrella payslip looks so small.
Free · No sign-upPayments on account
The demand is two separate things added together — this splits them apart.
Free · No sign-upWhy people use these tools
Most tax calculators give you one number and no working. These show the whole calculation — band by band, deduction by deduction — so you can check it against your payslip, your completion statement or your HMRC letter. Every rate is dated and linked back to gov.uk.
Runs in your browser
No installation and no plugin. Everything happens on your own device.
Nothing leaves your device
Your microphone audio and your results stay local. We never upload them.
Works on phone and desktop
Responsive layouts, keyboard and touch support, and no forced sign-up.
FAQ
Do I need to create an account?
No. Every test on this site is free and works without an account or a download.
Does it work on a phone?
Yes. The click and microphone tests work on mobile. The typing test needs a physical or on-screen keyboard.
Are my results stored?
Your personal best is saved in your own browser using local storage. It never reaches our servers.