UK Stamp Duty calculator 2026/27
Estimate residential SDLT for England and Northern Ireland, including first homes and additional properties.
How the Stamp Duty (SDLT) estimate works
The SDLT estimate applies residential bands for England and Northern Ireland, with routes for an eligible first-time buyer, an additional property and the non-UK-resident surcharge. It assumes a straightforward freehold purchase.
Rules checked
Read the checking method
What the result includes
- Standard residential bands
- First-time buyer relief within its price limit
- Additional-property and non-resident supplements when selected
What to have ready
- Chargeable purchase price
- Every buyer’s property ownership position
- Residence status and whether a main home is being replaced
Questions about Stamp Duty (SDLT)
When is SDLT normally filed and paid?
The return and payment are generally due within 14 days of the effective date. A conveyancer usually handles this as part of completion.
Can an additional-property surcharge later be repaid?
A refund may be possible when a previous main home is sold within the statutory period and all conditions are met. The calculator does not test that claim.
About this estimate
This covers England and Northern Ireland. Scottish LBTT, Welsh LTT, mixed-use purchases, companies, linked transactions and lease rent use different rules.