Guides & Tools

Free calculators, estimators, and in-depth guides to help you understand and reclaim overpaid stamp duty.

Calculators & Tools

Calculate stamp duty on any property in England & NI. Standard, first-time buyer, and additional property rates.

Walk through your property room by room and get an instant estimate of the SDLT you may have overpaid.

Describe any household item and get an AI-powered HMRC-backed ruling on whether it qualifies as stamp-duty-exempt.

Answer a few quick questions to find out if you qualify for a stamp duty refund.

Compare market value election vs share-only method to find the cheapest SDLT option for shared ownership purchases.

Calculate SDLT for company purchases including the 15% flat rate, 5% surcharge, and non-residential rates.

Look up EPC data and property details by postcode to support your chattel valuation.

The complete guide to every type of SDLT refund — chattels, additional property, uninhabitable dwellings, and more.

Everything that changed on 1 April 2025 — nil-rate bands, first-time buyer thresholds, and the 5% surcharge.

Updated FTB relief rates, eligibility rules, and worked examples after the April 2025 threshold changes.

Before-vs-after comparison tables showing the impact of the October 2024 Budget on SDLT bills.

Which household items are legally exempt from stamp duty and how to value them correctly.

Step-by-step instructions for claiming overpaid SDLT yourself or through a specialist.

The legal distinction between fixtures (taxable) and fittings (exempt) and where the grey areas are.

How landlords can reclaim overpaid SDLT on investment properties.

When a property qualifies for non-residential rates and the potential savings.

A quick breakdown of typical overpayments by property price band.

Takes 2 minutes. No obligation. See exactly how much SDLT you may have overpaid.