Stamp Duty / Land Tax Calculator
Calculate stamp duty (England/NI), LBTT (Scotland), LTT (Wales), or land transfer tax.
MSc Finance, Chartered Accountant (ICAEW)
Financial analyst with 12 years experience in mortgage advisory, investment planning and personal finance education.
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About the Stamp Duty / Land Tax Calculator
Stamp Duty Land Tax (SDLT) in England and Northern Ireland, Land and Buildings Transaction Tax (LBTT) in Scotland, and Land Transaction Tax (LTT) in Wales are taxes paid by buyers when purchasing property above certain thresholds. Understanding your stamp duty liability is essential when budgeting for a property purchase — it can represent tens of thousands of pounds and must be paid to HMRC within 14 days of completion.
Stamp duty is calculated on a tiered basis: only the portion of the purchase price within each band is taxed at that band's rate. This is similar to income tax — a £300,000 purchase is not taxed at 5% on the entire amount. In England (2025 rates): the first £250,000 is taxed at 0%, the portion between £250,001 and £925,000 is taxed at 5%, and so on. For a £300,000 property: £0 on the first £250,000, plus 5% of £50,000 = £2,500 total.
First-time buyers benefit from a relief that raises the 0% threshold to £425,000, with 5% on the portion up to £625,000. If you have never owned residential property anywhere in the world, you qualify — this includes inherited property. The additional dwelling supplement (3% in England, 6% in Scotland, 4% in Wales) applies to anyone buying an additional property, including buy-to-let investments and second homes.
How it works
England SDLT (standard, 2025): 0% on first £250,000 5% on £250,001–£925,000 10% on £925,001–£1,500,000 12% above £1,500,000 First-time buyer (England): 0% on first £425,000 5% on £425,001–£625,000 (no relief above £625,000 — standard rates apply) Additional property surcharge: +3% on every band
Tips to improve your result
- 1.
Always factor stamp duty into your total purchase budget from day one — it cannot be added to your mortgage and must be paid in cash at completion.
- 2.
If you are buying with a partner who already owns property and you haven't, you may still owe the additional dwelling surcharge as a couple. Each buyer's status is assessed together.
- 3.
For mixed-use properties (e.g. flat above a shop), commercial stamp duty rates may apply, which can be significantly lower on high-value properties — worth checking with a tax solicitor.
- 4.
Stamp duty is paid to HMRC by your solicitor from your funds within 14 days of completion. Late payment attracts penalties and interest.
- 5.
New Zealand abolished stamp duty in 1999. Ireland abolished it on residential property in 1997 then reintroduced it in 2010. There is periodic political debate about abolishing or reforming SDLT in England to reduce friction in the housing market.