About TaxFly
Free UK Tax Calculators - built to give you fast, accurate answers about UK tax, without the jargon or the sign-up.
Our mission
UK tax is more complicated than it needs to be - and most online calculators are thin, out of date, or quietly wrong. TaxFly exists to fix that. We build clear, genuinely accurate calculators and guides that help you understand exactly what you'll pay and why.
Accuracy is the product
Every calculation on this site follows the official rules published by GOV.UK, Revenue Scotland and the Welsh Government. UK tax is regional - income tax differs in Scotland, and "stamp duty" is a different tax in England, Scotland and Wales - so we always apply the correct rules for your nation. Read exactly how we calculate every figure.
Always up to date
Tax rates and thresholds change every year (and sometimes mid-year at a Budget). We review our figures every tax year and show a visible "last updated" date on every calculator so you know you're looking at current numbers for the 2026/27 tax year.
Free, forever
All our calculators and guides are free to use with no account required. We may earn from advertising or relevant partner links, but that never changes the maths or the advice.
Important
TaxFly provides estimates for guidance only and is not a substitute for professional tax advice. For decisions that matter, speak to a qualified accountant or check directly with HMRC. See our full disclaimer.
Who builds TaxFly
Our calculators and guides are written and reviewed by a qualified tax professional - see our full editorial standards.
Laura Michelle Davis - Chartered Tax Adviser (CTA)
ACCA · CTA (Chartered Tax Adviser) · ATT · BSc Economics, UC Berkeley
Laura Michelle Davis is a Chartered Tax Adviser (CTA) who also holds the ACCA and ATT qualifications and a BSc in Economics from UC Berkeley. She specialises in UK personal tax, covering income tax, National Insurance, self-employment and capital gains, and has built her career making complicated rules easy to follow. At TaxFly, Laura writes and edits the tax guides and explainers, checking that figures reflect current HMRC rates and that every explanation answers the question a real person is actually asking. Her goal is plain-English clarity you can trust and act on.
View profile