Buy-to-Let Stamp Duty Calculator UK

What this buy-to-let stamp duty calculator covers

Buying costs decide whether a deal stacks up. The August Stamp Duty Calculator shows your Stamp Duty Land Tax (SDLT) instantly and explains the rules that affect real buyers: first-time buyer relief, higher rates for additional properties, the 2% non-resident surcharge, mixed-use and non-residential, and the post-2024 changes to reliefs. Ready to try August?

SDLT rates for buy-to-let and additional properties 2026

Main residence (you’ll own one home after completion) - 0% to £125,000; 2% on £125,001–£250,000; 5% on £250,001–£925,000; 10% on £925,001–£1.5m; 12% above £1.5m.

First-time buyer relief - 0% to £300,000, then 5% on £300,001–£500,000 (no relief if price > £500,000).

Higher rates for additional properties (buy-to-let/second homes) - Add 5% to each main-residence band (so bands are 5%, 7%, 10%, 15%, 17%).

Non-UK resident surcharge - +2% on top of whatever rate applies. Possible refund if you meet the 183-day residence test within the permitted window.

Non-residential/mixed-use rates - 0% to £150,000; 2% on £150,001–£250,000; 5% above £250,000. Six or more dwellings in one transaction are treated as non-residential.

Scotland and Wales have different taxes (LBTT and LTT). This calculator covers England & Northern Ireland only.

What changed for buy-to-let stamp duty from April 2025

• Multiple Dwellings Relief abolished for transactions effective on or after 1 June 2024 (with limited contract-exchange protection if exchanged on or before 6 March 2024). Model deals without MDR; for 6+ dwellings, non-residential rates apply.

• Higher-rate bands updated from 1 April 2025 (see 5/7/10/15/17% table above).

Can you reclaim the 5% stamp duty surcharge?

If you buy a new main residence before selling your existing home, you will initially be charged the 5% additional property surcharge on the purchase, because at the point of completion you own more than one property. However, HMRC allows a refund of that surcharge if you sell your previous main residence within 36 months of completing on the new one.

The good news is that HMRC allows a full refund of the surcharge if you sell your previous main residence within 36 months of completing on the new purchase. To claim, you must apply to HMRC within 12 months of selling your old home, or within 12 months of the filing date for your original SDLT return, whichever is later. Applications are made through the GOV.UK website.

For buy-to-let investors who genuinely hold multiple properties with no intention of selling a main residence, the 5% surcharge is a permanent acquisition cost and cannot be reclaimed. It should be factored into your upfront buying costs alongside legal fees and survey costs before you exchange. Our article on stamp duty changes from April 2025 explains how the surcharge rate increased from 3% to 5% and what else changed for landlords, and our guide to capital gains tax for landlords covers the tax position at the other end of ownership when you come to sell.

Stamp duty in Scotland and Wales: LBTT and LTTs

This calculator covers England and Northern Ireland only, where Stamp Duty Land Tax (SDLT) applies. Scotland and Wales use separate taxes with different thresholds and rates.

In Scotland, Land and Buildings Transaction Tax (LBTT) applies. The nil-rate threshold is £145,000 for standard residential purchases, and an Additional Dwelling Supplement (ADS) of 8% applies to second homes and buy-to-let properties, significantly higher than the English 5% surcharge.

In Wales, Land Transaction Tax (LTT) applies. The nil-rate threshold is £225,000 for standard residential purchases, higher than England's £125,000, but higher residential rates apply to additional properties and there is no first-time buyer relief equivalent.

If you are considering property across more than one UK jurisdiction, confirm the applicable rates for each country with your solicitor before exchanging. Our guide to buy-to-let investment strategy covers how acquisition costs including stamp duty affect returns across different property types and regions.

Non-UK resident stamp duty surcharge

A 2% SDLT surcharge applies to non-UK residents purchasing residential property in England or Northern Ireland. This stacks on top of all other applicable rates, so a non-UK resident buying a buy-to-let property faces the standard residential bands, plus the 5% additional property surcharge, plus the 2% non-resident surcharge. At the top of the combined rate table, that produces a marginal rate of 19% on the portion of the purchase price above £1.5 million.

HMRC defines a non-UK resident as someone present in the UK for fewer than 183 days in the 12-month period before the transaction date. If you meet that 183-day test within a 12-month window ending 12 months after the transaction, you can claim a full refund of the 2% surcharge, making it potentially temporary for buyers relocating to the UK. The refund window runs from the date of purchase, not the date you achieve residency.

A growing number of landlords acquiring property through a limited company structure are affected by both the non-resident rules and the additional property surcharge simultaneously. Our guide to whether forming a limited company is right for UK landlords sets out when company ownership changes the stamp duty and tax position and when it does not.

Worked examples: stamp duty across buyer types

1) First-time buyer, £295,000 house
0% on £300,000 threshold ⇒ £0 SDLT (price is below £300k + relief band).

2) Home mover (single property after completion), £500,000
0% on £125k = £0; 2% on next £125k = £2,500; 5% on £250k = £12,500 ⇒ £15,000 SDLT.

3) Additional property, £300,000 (England)
Apply higher rates: 5% on £125k = £6,250; 7% on next £125k = £8,750; 10% on £50k = £5,000 ⇒ £20,000 SDLT.

4) Mixed-use freehold, £275,000
Non-residential bands: 0% to £150k; 2% on £100k = £2,000; 5% on £25k = £1,250 ⇒ £3,250 SDLT.

How to use the buy-to-let stamp duty calculator

Enter the price (or premium), pick buyer type (first-time/mover/additional property), and toggle non-UK resident and mixed-use if relevant. The calculator shows SDLT by band and totals your acquisition cost.

Stamp duty is one of the biggest upfront costs in any property purchase, and the rates vary significantly depending on buyer type and completion date. Our article on capital gains tax for landlords covers the tax position at the other end of ownership, when you come to sell. If you are buying a property with tenants already in place, our guide to buying a rental property with tenants in situ walks through the additional legal and financial considerations involved.

Disclaimer

This calculator provides stamp duty estimates for guidance only and does not constitute legal or financial advice. Actual tax owed may vary based on individual circumstances and HMRC or devolved administration rules. Always consult a qualified solicitor or tax adviser before making property decisions