UK Stamp Duty Calculators

Rates read 22 October 2026 from HM Revenue & Customs

Buy-to-Let Stamp Duty

If you own another residential property, SDLT goes up by 5 percentage points on every band — not a flat 5% of the price. On a £200,000 buy-to-let that is £11,500, against £1,500 at the standard rate.

These are the rates for a purchase completing on or after 1 April 2025. If yours completed earlier, the rates were different — the main SDLT calculator has a date selector that applies the right bands for 2022–24 and 2024–25.

Work it out

Enter the amount. Commas are fine.

Tax payable
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The bands

Portion of the priceRate
£0 – £125,0005%
£125,001 – £250,0007%
£250,001 – £925,00010%
£925,001 – £1,500,00015%
Above £1,500,00017%

Why it is not simply “+5% of the price”

GOV.UK says you usually pay 5% on top of these rates if you own another residential property. That means each band rate rises by 5 points: 0% becomes 5%, 2% becomes 7%, 5% becomes 10%, and so on. The surcharge is charged band by band, on the slice of the price in each one.

The surcharge was 3% before 31 October 2024

If your purchase completed before 31 October 2024 the additional-property surcharge was 3 percentage points, not 5 — so the rates were 3%, 5%, 8%, 13% and 15%. That is also the figure that gets reclaimed if you later sell a main home you replaced. GOV.UK published the 3% table separately for purchases from 23 September 2022 to 30 October 2024.

When the higher rates do not apply

GOV.UK treats a purchase as an additional property when you already own another home anywhere in the world, and the rules are applied on completion. There are reliefs — for example where you replace your main home and sell the old one within the allowed period — but they have conditions, so check GOV.UK before relying on one.

Source: HM Revenue & Customs — Stamp Duty Land Tax: residential property rates, read 22 October 2026. England and Northern Ireland. Scotland uses the Additional Dwelling Supplement and Wales uses higher residential rates — both are different mechanisms with different numbers.

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