UK Stamp Duty Calculator

How this calculator works

Stamp Duty Calculator uses current UK rates and thresholds. Results are indicative and should be confirmed with a qualified adviser before you commit to a purchase.

Enter your figures and the calculator updates instantly. Nothing you type is stored, and you do not need an account to use it.

What to check before you rely on the result

• Rates, allowances and thresholds change at each UK fiscal event, so confirm the position at the date you complete.
• Your circumstances matter: additional properties, non-resident status, first-time buyer relief and joint ownership all change the outcome.
• Lender, legal, survey and ongoing running costs sit outside this calculation and should be budgeted separately.
• For an investment decision, pair the result with local sold price, rent and yield evidence rather than the headline number alone.

Use it with local market data

A calculator tells you what a deal costs. It does not tell you whether the price is fair. REalm BI Property Check compares a specific address with recent sold prices, rents and yields nearby, so you can sanity check the purchase price before you offer.

The UK House Price Index shows how prices in the local and wider area have moved over the last twelve months and over the longer term, in both cash and inflation adjusted terms.