Disclaimer: This calculator is a guide only. Figures are based on residential Stamp Duty Land Tax (SDLT) rates for England and Northern Ireland effective from April 2025. It does not cover Scotland (LBTT), Wales (LTT), mixed-use or non-residential property, linked transactions, shared ownership schemes, leasehold rent, multiple dwellings relief, purchases by companies or trusts, or other specialist reliefs. Mortgage repayment figures and additional buying costs are estimates only and do not constitute financial advice. SDLT must be reported and paid to HMRC within 14 days of completion. Always consult a qualified solicitor or independent financial adviser before proceeding.