Stamp Duty Calculator

Calculate your Stamp Duty Land Tax (SDLT) accurately with our professional calculator. Get instant calculations for residential properties, buy-to-let investments, and second homes. Includes first-time buyer relief and the latest tax rates.

Calculate Your Stamp Duty

Important Notes

  • Rates are current as of April 2024
  • First-time buyers get relief up to £425,000
  • Buy-to-let properties incur a 3% surcharge
  • Commercial rates differ from residential rates

Frequently Asked Questions

Common questions about stamp duty calculation

When do I need to pay stamp duty?

Stamp duty must be paid within 14 days of completing your property purchase. Your solicitor usually handles this payment, but you're legally responsible for ensuring it's paid on time. Late payment can result in penalties and interest charges.

What is the first-time buyer stamp duty relief?

First-time buyers pay no stamp duty on the first £425,000 of their property purchase. If the property costs more than £625,000, you'll pay the standard rates. This relief only applies to residential properties, not buy-to-let investments.

How is stamp duty calculated on buy-to-let properties?

Buy-to-let properties and second homes incur a 3% surcharge on top of standard rates. For example, if the standard rate is 2%, you'll pay 5%. This applies to the entire purchase price, not just portions above certain thresholds.

Can stamp duty be added to my mortgage?

While technically possible to add stamp duty to your mortgage, it's not recommended as you'll pay interest on it over the entire mortgage term. For example, £10,000 in stamp duty could cost you an additional £5,000-£8,000 in interest over a 25-year mortgage.

Are there any stamp duty exemptions?

Yes, certain transactions are exempt from stamp duty, including property transfers during divorce or separation, properties left in wills, and properties below the minimum threshold (currently £250,000 for residential properties). Some zero-carbon homes may also qualify for relief.