Whether you’re a first-time buyer, moving house, or investing in a buy-to-let property, understanding stamp duty is an essential part of calculating your property costs. You can use the calculator here or on StampDutyCalculator.org.uk to help you estimate the stamp duty you’ll need to pay on your property purchase.
*Please note that online calculators are intended as a general guide. For precise calculations, we recommend consulting with a solicitor or experienced mortgage advisor.
Stamp Duty Land Tax (SDLT) is a tax applied to property purchases in England and Northern Ireland. It applies to both freehold and leasehold properties, regardless of whether you’re buying outright or with a mortgage.
The SDLT you pay depends on the property’s price and whether it’s your first home, your next home, or an additional property. Our calculator considers these factors to provide an estimate of the stamp duty you may owe.
Stamp duty is calculated based on the property’s purchase price, using various tax bands set by the UK Government. Here are the rates effective from 1 April 2025:
| Property or lease premium or transfer value | SDLT rate |
|---|---|
| Up to £125,000 | Zero |
| £125,001 to £250,000 | 2% |
| £250,001 to £925,000 | 5% |
| £925,001 to £1.5 million | 10% |
| Over £1.5 million | 12% |
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