Terms & Conditions

Last updated: March 2025

1. Acceptance

By using SDLT Calculator you agree to these terms. If you do not agree, please do not use the site.

2. Use of the calculator

The SDLT calculator is provided free of charge for informational purposes. It uses rates effective from 1 April 2025 for England and Northern Ireland. Results are rounded down to the nearest pound and are estimates only. They do not constitute tax or legal advice.

3. No professional advice

We are not affiliated with HMRC or any government body. For your actual Stamp Duty Land Tax liability and to submit your return, you must rely on a qualified solicitor, conveyancer, or the official HMRC guidance and calculator.

4. Limitation of liability

The site is provided "as is". We do not guarantee accuracy or completeness of results. We are not liable for any loss or damage arising from your use of the calculator or reliance on its output.

5. Changes

We may change these terms or the calculator at any time. Continued use after changes constitutes acceptance of the updated terms.