UK Stamp Duty Calculator
calculate your SDLT in seconds
Calculate exactly how much stamp duty you owe on your property purchase — updated for 2026 rates with first-time buyer relief and additional property surcharge.
How stamp duty is calculated
Stamp Duty Land Tax (SDLT) works in bands — similar to income tax. You pay the relevant rate only on the portion of the price that falls within each band. So on a £300,000 property, you don't pay 5% on the whole amount: you pay 0% on the first £125,000, 2% on the next £125,000, and 5% on the remaining £50,000.
Standard SDLT rates for 2026
The nil-rate threshold reverted to £125,000 in April 2025 after the temporary £250,000 threshold expired. The bands are: 0% up to £125,000; 2% on £125,001–£250,000; 5% on £250,001–£925,000; 10% on £925,001–£1,500,000; 12% above £1,500,000.
First-time buyer relief
First-time buyers pay 0% on the first £300,000 of a property worth up to £500,000, and 5% on the portion between £300,001 and £500,000. Properties above £500,000 do not qualify for first-time buyer relief — standard rates apply from £1.
Additional property surcharge
A 3% surcharge applies on all purchases of additional residential properties — second homes, buy-to-let, and any residential property when you already own one. The surcharge applies from £1 with no nil-rate band. If you sell your main residence within three years of buying the new property, you can apply for a refund of the surcharge.
UK Stamp Duty Calculator 2026
This calculator works out your Stamp Duty Land Tax (SDLT) for residential property purchases in England and Northern Ireland. Select your buyer type to apply the correct rates — first-time buyers, home movers and additional property purchasers all pay different amounts.
SDLT rates for 2026
| Property value | Standard rate | First-time buyer | Additional property |
|---|---|---|---|
| Up to £125,000 | 0% | 0% | 3% |
| £125,001–£250,000 | 2% | 0%* | 5% |
| £250,001–£300,000 | 5% | 0%* | 8% |
| £300,001–£500,000 | 5% | 5% | 8% |
| £500,001–£925,000 | 5% | 5%** | 8% |
| £925,001–£1,500,000 | 10% | 10%** | 13% |
| Above £1,500,000 | 12% | 12%** | 15% |
* First-time buyer relief applies on properties up to £500,000 only. ** Above £500,000, standard rates apply from £1 for first-time buyers.