About Stamp Duty Calculator UK
Stamp Duty Calculator UK is a free online calculator that works out how much stamp duty you would pay on a residential property purchase in the United Kingdom.
Property tax works differently across the UK, so the calculator covers all three systems:
- England and Northern Ireland — Stamp Duty Land Tax (SDLT)
- Scotland — Land and Buildings Transaction Tax (LBTT)
- Wales — Land Transaction Tax (LTT)
It handles the common buyer situations: first-time buyers, people moving home, second-home purchases, buy-to-let, and non-UK residents.
The site is free to use, with no account and no signup. The calculator runs entirely in your browser — the figures you enter are not sent to or stored by the site.
What this site is not
Stamp Duty Calculator UK is an independent information tool. It is not a conveyancer, solicitor, tax adviser, or estate agent, and the figures it produces are estimates for guidance only — not financial or legal advice. Before you complete a purchase, always confirm the final figure with your conveyancer or solicitor. Tax rules change, and unusual situations (for example shared ownership or mixed-use property) need professional advice.
How the figures are kept accurate
Every rate on this site is taken from the official sources: GOV.UK, Revenue Scotland, and GOV.WALES / the Welsh Revenue Authority. Each page carries a dated “Rates verified” line, and rates are re-checked against those sources after Budgets and other fiscal events. The full detail of how the calculator works is on the Methodology page, and any error can be reported via the Contact page.
Who runs this site
This site is run by Stamp Duty Calculator UK. It exists to give UK home buyers a free, accurate stamp duty calculator and plain-English explanations of the rates in England and Northern Ireland, Scotland, and Wales.