What is UKTaxTools?
UKTaxTools is a free online resource providing practical tax calculators for UK taxpayers of all kinds — employees, sole traders, limited company directors, landlords and investors. We cover everything from VAT and income tax to Stamp Duty, Corporation Tax and IR35.
Every tool on this site is free to use, requires no registration, and stores no personal data — all calculations happen in your browser.
Why We Built This
UK tax rules can be complicated, and professional advice can be expensive. We built UKTaxTools to give anyone fast, accurate answers to common UK tax questions — the same clarity you'd get from an accountant, without the hourly rate.
Our Calculators
We currently offer 11 free tools covering the most important areas of UK business tax:
- VAT Calculator — add or remove VAT at 20%, 5% or 0%
- Stamp Duty Calculator — SDLT for England and Northern Ireland
- LBTT Calculator — Land and Buildings Transaction Tax for Scotland
- PAYE Income Tax Calculator — employee take-home pay
- Self-Employed Tax Calculator — sole trader income tax and NI
- IR35 Calculator — inside vs outside IR35 comparison
- Dividend Tax Calculator — tax on dividends for 2026/27
- SSP Calculator — Statutory Sick Pay entitlement
- Invoice Generator — create and download a PDF invoice
- Mileage Calculator — HMRC approved mileage expense rates
- Corporation Tax Calculator — limited company tax bill
Accuracy & Sources
All rates, thresholds and rules used across UKTaxTools are sourced directly from HMRC and GOV.UK. We review and update every calculator each April when the new tax year begins, and again whenever HMRC announces in-year changes (such as the NI rate changes and employer threshold adjustments in 2025/26).
Each calculator page links to the relevant HMRC guidance so you can verify the figures directly. Our blog posts are similarly based on current HMRC and government publications — we don't publish rates we haven't checked against an official source.
However, UKTaxTools is not a substitute for professional advice. Tax rules are complex and your individual situation may differ from the assumptions used in our calculators. Always verify important calculations with HMRC directly, or speak to a qualified accountant or tax adviser.
Privacy
We do not collect, store or share any personal data. Numbers you enter into our calculators stay entirely in your browser — they are never sent to our servers.
Current Tax Year
All tools are updated for the 2026/27 tax year (6 April 2026 to 5 April 2027). Rates and thresholds are verified against HMRC's published guidance for this tax year.