gov uk stamp duty calculator

What is stamp duty in the UK?

When you buy property in England or Northern Ireland, you may need to pay Stamp Duty Land Tax (SDLT). The amount depends on the purchase price, your buyer status (for example, first-time buyer or additional property buyer), and sometimes your residency status.

If you are buying in Scotland or Wales, different systems apply:

• Scotland: Land and Buildings Transaction Tax (LBTT)
• Wales: Land Transaction Tax (LTT)

This page focuses on the SDLT structure used for England and Northern Ireland and gives you a practical way to estimate your bill before you exchange contracts.

How this GOV UK stamp duty calculator works

The calculator applies SDLT in bands. That means you do not pay one single rate on the full property price (except surcharge portions). You pay different rates on different slices of the price.

Standard residential rates used by this calculator

• 0% on the portion up to £125,000
• 2% on the portion from £125,001 to £250,000
• 5% on the portion from £250,001 to £925,000
• 10% on the portion from £925,001 to £1.5 million
• 12% on the portion above £1.5 million

First-time buyer relief

For eligible first-time buyers, this calculator applies relief where available:

• 0% up to £300,000
• 5% on £300,001 to £500,000
• If purchase price is above £500,000, first-time buyer relief is not applied and standard rates are used

Additional property and non-UK surcharge

If you are buying an additional property (like a second home or buy-to-let), the calculator adds a 5% higher-rate surcharge across the full purchase price. If flagged as non-UK resident, it also adds an additional 2% surcharge across the full purchase price.

Why using a calculator helps before you buy

SDLT is often one of the biggest upfront costs after your deposit. A reliable estimate helps you:

• Set a realistic total budget
• Compare properties at different prices without guesswork
• Avoid cashflow surprises close to completion
• Plan for legal fees, surveys, removals, and emergency buffer

Example quick scenarios

1) Standard home mover at £350,000

You pay 0% up to £125,000, 2% on the next £125,000, and 5% on the final £100,000. The tool handles this instantly and shows the full breakdown.

2) First-time buyer at £425,000

With relief, the first £300,000 is 0%, and the remaining £125,000 is taxed at 5%. This can significantly reduce your SDLT versus standard rates.

3) Buy-to-let purchase at £300,000

Standard SDLT applies first, then the additional-property surcharge is added on top. In many cases this meaningfully changes the investment math, so model it early.

Common mistakes people make

• Assuming one flat rate applies to the whole property price
• Forgetting to include additional-property surcharges in affordability checks
• Claiming first-time buyer rates when the purchase price exceeds the relief threshold
• Not checking residency-based surcharge rules
• Budgeting only for deposit and mortgage, not total completion costs

Final notes

This page is designed to give you a practical, user-friendly estimate similar to what many buyers search for when they type “gov uk stamp duty calculator”. It is ideal for planning, but rules can change and personal circumstances matter.

Before committing to a purchase, always confirm the latest SDLT guidance and ask your conveyancer or tax adviser to validate the final amount payable.