Sources

Every rate in this calculator traces to one of these primary sources — never a secondary summary.

• GOV.UK — Stamp Duty Land Tax (general authority) — General SDLT guidance for England & Northern Ireland.
• GOV.UK — SDLT residential property rates — Standard bands and first-time-buyer relief for England & Northern Ireland (SDLT).
• GOV.UK — SDLT rates for non-UK residents — The non-UK-resident surcharge for England & Northern Ireland (SDLT).
• GOV.UK — SDLT non-residential and mixed-use rates — Non-residential/mixed-use rates for England & Northern Ireland — out of this calculator's scope, but a source we checked and cite for completeness.
• Revenue Scotland (general authority) — General LBTT guidance for Scotland.
• Revenue Scotland — LBTT residential property — Standard bands and first-time-buyer relief for Scotland (LBTT).
• Revenue Scotland — Additional Dwelling Supplement — The Additional Dwelling Supplement for Scotland (LBTT).
• Revenue Scotland — LBTT non-residential property — Non-residential rates for Scotland — out of this calculator's scope, but a source we checked and cite for completeness.
• Welsh Revenue Authority — Land Transaction Tax overview (general authority) — General LTT guidance for Wales.
• Welsh Government — LTT rates and bands — Standard bands and higher residential rates for Wales (LTT).

See methodology for how these sources are used to compute a figure, andthe changelog for when each was last verified.