Use our free stamp duty calculator to calculate SDLT for buy-to-let purchases. This free SDLT calculator tool includes the 3% additional property surcharge.
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Buy-to-Let SDLT Rates (2024/25)
Landlords buying additional properties pay a 3% surcharge on top of standard SDLT rates. Companies buying residential property pay the surcharge regardless of portfolio size.
BTL purchases are treated as additional properties with 3% surcharge
Limited company purchases always pay surcharge
Total Stamp Duty
Effective rate: 0.00%
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Get Started FreeA stamp duty calculator (also called an SDLT calculator or stamp duty tool) is a free online tool that helps UK property buyers calculate Stamp Duty Land Tax. Our free stamp duty calculator includes the 3% surcharge for buy-to-let and additional property purchases.
When purchasing a buy-to-let property in England or Northern Ireland, you'll pay Stamp Duty Land Tax (SDLT) at higher rates than residential buyers. The additional 3% surcharge applies to all BTL purchases and second homes.
| Property Price Band | Standard Rate | BTL Rate (+3%) |
|---|---|---|
| Up to £250,000 | 0% | 3% |
| £250,001 - £925,000 | 5% | 8% |
| £925,001 - £1,500,000 | 10% | 13% |
| Over £1,500,000 | 12% | 15% |
If you're replacing your main residence and sell your previous home within 3 years, you may be able to reclaim the 3% surcharge. This doesn't apply to genuine BTL purchases.
Properties purchased through a limited company always attract the 3% surcharge, regardless of whether it's the company's first property. However, there may be other tax benefits to company ownership.
Yes! This SDLT calculator is completely free. Calculate stamp duty for any UK property purchase without signup or payment required.
Yes, all buy-to-let purchases are treated as additional properties and attract the 3% surcharge on top of standard SDLT rates, even if it's your first investment property.
Stamp duty must be paid within 14 days of completion. Your solicitor will usually handle this as part of the conveyancing process.