UK Stamp Duty (SDLT) Calculator
- Stamp duty / LBTT / LTT
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- Effective rate
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Band breakdown
2026/27 rates as published by HMRC, Revenue Scotland, WRA. Additional-property surcharge: +5% (E/NI), +8% (Scotland ADS), +4% (Wales).
About this tool
UK Stamp Duty (SDLT) Calculator is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
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