Stamp Duty Calculator 2025
Calculate SDLT on your property purchase — standard rates or first-time buyer relief.
How to Use This Calculator
Standard tab
Enter the property price and select your buyer type (standard, additional property, or non-UK resident). The calculator instantly shows your total Stamp Duty Land Tax, the effective rate, and a full breakdown by band so you can see exactly where each portion of tax comes from.
First-Time Buyer tab
Switch to the First-Time Buyer tab if you have never owned a residential property anywhere in the world. You'll benefit from higher nil-rate thresholds — meaning you pay nothing on the first £300,000 and a reduced rate above that (on properties up to £500,000).
Band breakdown
Below the headline figure, the calculator displays every SDLT band that applies to your purchase. Each row shows the band range, the rate, and the tax due on that slice — so you can verify the maths yourself.
Share your result
Every input is encoded in the URL. Click Share, send the link — they'll see your exact numbers. No re-entering, no screenshots.
The Formula
Stamp Duty Land Tax (SDLT) uses a progressive band system — similar to income tax. You don't pay the top rate on the whole price; each band applies only to the portion of the price within that range.
Standard SDLT Rates — from 1 April 2025
First-Time Buyer Rates
Available on properties up to £500,000 where the buyer has never owned a residential property.
Additional property surcharge
Example
Sarah — buying a home at £350,000
Sarah is purchasing a property for £350,000 in England. Let's compare her stamp duty as a standard buyer and as a first-time buyer.
Standard buyer
First-time buyer
As a first-time buyer, Sarah saves £5,000 — paying just £2,500 instead of £7,500. That's money she can put towards furnishing or her moving costs.