This calculator uses the same progressive tax bands and legislative rules as HMRC’s own tool — drawn directly from the Finance Act 2003 and its subsequent amendments — but goes significantly further. Where the standard HMRC calculator handles a basic residential purchase, this one covers all five major SDLT scenarios: residential, non-residential, mixed-use, company transfers and reclaims.
Stamp Duty Calculator
Calculate your SDLT for England & Northern Ireland. Covers residential, non-residential, mixed-use, company transfers and reclaims.
Residential SDLT
If yes, the 15% enveloped-dwellings rate may not apply.
Non-Residential SDLT
If yes, SDLT is based on market value under FA 2003 s.53.
Mixed-Use SDLT
Mixed-use properties are taxed at lower non-residential rates. Select your property type and complete the eligibility checker.
Company Transfer SDLT
Calculate SDLT when transferring property to or acquiring via a company. For residential properties over £500,000 without a qualifying business purpose, the 15% enveloped-dwellings rate may apply.
Connected parties include directors, shareholders with significant control, and associated companies. If connected, SDLT is based on market value (FA 2003 s.53).
If yes, the 15% enveloped-dwellings rate does not apply — the company pays standard residential rates with the higher-rates surcharge instead.
SDLT Reclaim
Think you overpaid stamp duty? Select the reclaim reason, enter your original purchase details, and see your potential refund.
Check your SDLT5 certificate — the surcharge is 5% (from Oct 2024) or 3% (before then).
Disclaimer: This calculator provides an indicative estimate and does not constitute tax or legal advice. For complex transactions or if you believe you may have overpaid, get in touch for a free review.
