Stamp Duty Calculator (UK)
Calculate the stamp duty on any UK property purchase. Includes standard residential rates, first-time buyer relief, and the 3% additional property surcharge.
UK Stamp Duty Rates 2025
Standard Residential Rates
Up to £250,000: 0%. £250,001–£925,000: 5%. £925,001–£1.5m: 10%. Over £1.5m: 12%. Stamp duty is calculated on each band separately — not a flat rate on the total price.
First-Time Buyer Relief
First-time buyers pay no SDLT on the first £425,000, then 5% on the portion up to £625,000. Above £625,000, standard rates apply with no first-time buyer relief.
Additional Property Surcharge
Buying a second home or buy-to-let property incurs a 3% surcharge on top of all standard rates. On a £350,000 additional property, this adds £10,500 to your SDLT bill.
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