Mortgage & Stamp Duty Calculator

Estimate Your Mortgage and Stamp Duty Land Tax (SDLT)

Understanding the potential Stamp Duty Land Tax is an important part of planning your property purchase. Use our calculator for an estimate of the SDLT payable on residential properties in England and Northern Ireland, based on current government rates.

Our Calculators

Mortgage Calculator
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Stamp Duty Calculator
Calculate Your Stamp Duty
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Results
Stamp Duty To Pay:
Effective Rate:
Tax Band % Taxable Sum Tax

Please note: These rates are for residential properties and are subject to change based on government announcements. Always seek professional financial and legal advice. 

 This calculator provides an estimate only and should not be solely relied upon for financial decisions. SDLT calculations can be complex and depend on individual circumstances.
We strongly recommend consulting with a qualified legal and financial advisor for precise calculations and advice tailored to your situation.
Castles Estate Agents accepts no liability for any inaccuracies or decisions made based on this estimation.