Disclaimer
The SDLT calculator on this website is for general information and estimation only. It is not a substitute for professional tax or legal advice and must not be relied upon for your actual Stamp Duty Land Tax liability or return.
Guidance only
Calculations are based on SDLT rates effective from 1st April 2025 for freehold residential properties in England and Northern Ireland. Figures are rounded down to the nearest pound. Rules and reliefs (e.g. first-time buyer relief, multiple dwellings relief) can be complex; our tool does not cover every scenario.
Not HMRC or legal advice
We are not affiliated with HM Revenue and Customs (HMRC) or any government body. For your official SDLT return and liability, use GOV.UK and HMRC guidance. For your personal situation, always seek advice from a qualified solicitor or conveyancer.
No warranty
We do not warrant the accuracy or completeness of the calculator or that it will reflect your final SDLT bill. We are not liable for any loss or damage arising from your use of this tool or reliance on its results.