UK Stamp Duty Calculator
Estimate UK stamp duty land tax on property purchases.
- Last reviewed
- July 8, 2026
- Cost
- Free to use
- Data
- Runs in your browser
Estimated Stamp Duty
—
Price Plus Stamp Duty
—
Methodology
How this calculator handles inputs
This calculator uses the values you enter above and applies the formula explained in the guide below. Results update in the browser and are intended for quick planning, comparison, and sanity-checking.
- Use consistent periods, currencies, and units across inputs.
- Review any assumptions before using the result in a decision.
- Recalculate when rates, prices, tax rules, or business terms change.
Important note
This tool provides general planning information only. It is not tax, legal, financial, accounting, or investment advice. Check the current rules for your location and speak with a qualified professional before making a high-stakes decision.
Guide
How it works
Use this calculator to estimate UK stamp duty on a property purchase.
What this calculator does
The UK stamp duty calculator estimates Stamp Duty Land Tax on a residential property purchase in England or Northern Ireland.
It uses:
- property purchase price
- buyer type
- first-time buyer assumptions
- additional property surcharge assumptions
This gives you an estimated stamp duty amount and total upfront purchase cost impact.
Stamp Duty Formula
Stamp Duty = Purchase Price Applied Across SDLT Bands
Where:
- Purchase price is the property price agreed with the seller
- SDLT bands apply progressively to slices of the price
- Surcharges may apply to additional homes or certain buyer circumstances
Example calculation
If a property purchase crosses more than one SDLT band, only the part of the price inside each band is charged at that band's rate.
This means stamp duty is progressive. A higher purchase price does not usually cause the whole property value to be taxed at the highest rate reached.
When to use this calculator
Use this calculator when you want to:
- estimate SDLT before making an offer
- compare total cash needed across purchase prices
- model the impact of first-time buyer relief
- estimate the surcharge for an additional property
For wider property purchase costs, use the Property Transfer Cost Calculator.
FAQs
Does this apply across the whole UK?
No. SDLT applies in England and Northern Ireland. Scotland and Wales use different property transaction taxes.
Is stamp duty charged on the whole price at one rate?
Usually no. SDLT is applied progressively across price bands, so each slice of the purchase price can be taxed at a different rate.
Explore more
More calculators in this topic
Continue exploring
Related calculators
Explore the next calculations most relevant to this topic.
tax-compliance
UK Corporation Tax Calculator
Estimate UK corporation tax on company profits.
property-investment
Property Transfer Cost Calculator
Estimate property transfer cost for rental property and real estate investment decisions.
property-investment
Stamp Duty Calculator
Estimate simplified stamp duty based on property value and property type.