Stamp Duty on a Buy-to-Let Property: Rates, Rules and Refunds
BTL buyers pay higher rates — but overpayments are more common than you think.
Current buy-to-let SDLT rates (from April 2025)
Buy-to-let purchases attract the standard SDLT rates plus a 5% additional property surcharge applied to every band. Here are the combined rates:
| Band | Standard rate | BTL rate (incl. surcharge) |
|---|---|---|
| £0 – £125,000 | 0% | 5% |
| £125,001 – £250,000 | 2% | 7% |
| £250,001 – £925,000 | 5% | 10% |
| £925,001 – £1,500,000 | 10% | 15% |
| Over £1,500,000 | 12% | 17% |
Rates effective from 1 April 2025. The 5% surcharge was increased from 3% on 31 October 2024. Use our SDLT calculator for your exact figures.
Common reasons BTL investors overpay SDLT
Chattels included in purchase price
Furnished buy-to-lets frequently include carpets, curtains, white goods, and furniture in the purchase price. These are chattels and should be excluded from the SDLT calculation — especially important at BTL's higher combined rates.
Mixed-use property misclassified as residential
If your BTL property has a genuine commercial element — a shop with a flat above, or agricultural land — it may qualify for lower non-residential or mixed-use SDLT rates. Misclassification is common.
Property uninhabitable at completion
If the property was genuinely uninhabitable when you completed (structural failure, no services), it should have been taxed at non-residential rates. The bar is high, but the saving is significant.
Multiple Dwellings Relief (MDR)
Multiple Dwellings Relief allowed investors buying two or more dwellings in a single transaction to calculate SDLT based on the average price per dwelling rather than the total. This could significantly reduce the SDLT bill when purchasing a block of flats, a house with an annexe, or multiple units.
MDR was abolished on 1 June 2024
The government removed MDR for transactions completing on or after 1 June 2024. If you completed a multi-dwelling purchase before that date and didn't claim MDR, you may still be able to amend your SDLT return within the allowed window.
Even without MDR, BTL investors can still claim refunds for overpaid SDLT on chattels. Furnished rental properties typically include meaningful chattel values — and at BTL's higher combined rates, the refund per pound of chattels is larger than for standard purchases. Use our refund estimator to check your specific situation.
Frequently asked questions
Do I pay the 5% surcharge on a buy-to-let?
Yes. Since 31 October 2024, all buy-to-let purchases in England and Northern Ireland are subject to a 5% surcharge on top of the standard SDLT rates. This applies regardless of whether you already own other property — the surcharge is triggered by the fact that the property is not your main residence.
Can I claim stamp duty back on a buy-to-let property?
You cannot reclaim the 5% surcharge on a standard BTL purchase (unlike the main residence replacement relief for second homes). However, you can claim back SDLT overpaid on chattels — carpets, curtains, appliances, and furniture — that were included in the purchase price without being separately valued.
What is Multiple Dwellings Relief and do I qualify?
Multiple Dwellings Relief (MDR) was available for purchases of two or more dwellings in a single transaction, allowing SDLT to be calculated on the average price per dwelling rather than the total. However, MDR was abolished for transactions completing on or after 1 June 2024. If you completed before that date and didn't claim MDR, you may still be able to amend your return.
Does stamp duty apply to HMOs?
Yes — Houses in Multiple Occupation (HMOs) are subject to the same SDLT rates as other residential buy-to-let properties, including the 5% surcharge. The property is treated as a single dwelling for SDLT purposes regardless of how many tenants occupy it. However, chattels in furnished HMOs can be significant and worth claiming against.
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