UK Stamp Duty Land Tax Calculator

Stamp Duty Land Tax (SDLT) is a tax paid by the buyer when purchasing property or land in England and Northern Ireland over a certain value. It's charged on a progressive scale, similar to income tax, meaning higher portions of the price are taxed at higher rates.

SDLT is calculated in bands. You pay 0% on the portion of the price within the first band, then the next percentage on the portion within the next band, and so on, up to your full purchase price. The bands and rates depend on whether you're a first-time buyer, moving home, or buying an additional property.

This calculator applies HMRC's published SDLT bands for residential property to your purchase price, summing the tax owed in each band. If you select an additional property, the 5% higher-rates surcharge is added on top of the standard bands across the entire price.

First-time buyers pay no SDLT on the first £300,000 of a property priced up to £500,000. Properties under £125,000 are generally exempt from standard-rate SDLT entirely.

From 1 April 2025, the nil-rate threshold reverted to £125,000 for standard purchases (from a temporarily higher £250,000) and the first-time buyer nil-rate threshold reverted to £300,000.

SDLT: Stamp Duty Land Tax. Nil-rate band: the portion of the price taxed at 0%. Higher-rates surcharge: an additional 5% charged on second homes and buy-to-let purchases.