The UK tax system can seem complicated, but our calculators break it down step by step. All figures use the official HMRC rates for the 2025/26 tax year (6 April 2025 to 5 April 2026). Whether you are employed, self-employed, or running a small business, our tools help you estimate your tax obligations quickly and accurately.
Tax Calculator FAQs
We offer three UK tax calculators: an Income Tax calculator (full breakdown by band, effective and marginal rate, Scottish rates), a VAT calculator (add or remove 20% standard rate VAT), and a Self Assessment calculator (tax on self-employment profits, Class 2 and Class 4 National Insurance). All are updated for 2025/26.
The UK income tax rates for 2025/26 (England, Wales & NI) are: 0% on the first £12,570 (personal allowance), 20% on £12,571–£50,270 (basic rate), 40% on £50,271–£125,140 (higher rate), and 45% on income over £125,140 (additional rate). Scotland has six separate bands ranging from 19% to 48%.
VAT (Value Added Tax) is charged at 20% (standard rate), 5% (reduced rate, e.g. domestic energy), or 0% (zero-rated, e.g. food and children's clothing). Businesses with turnover over £90,000 must register for VAT. Our VAT calculator quickly works out the VAT amount and the gross or net price for any standard-rated transaction.
You must complete a Self Assessment return if you are self-employed with income over £1,000, a company director, have untaxed income over £2,500 (rental income, investments), earn over £100,000, or have received a P800 notice. The deadline for online Self Assessment is 31 January following the tax year end.
No — our calculators are independent tools for estimation purposes only. They use HMRC's published rates and thresholds but are not endorsed or approved by HMRC. For definitive tax calculations, use HMRC's official tools at gov.uk or speak to a qualified accountant.