Stamp Duty Calculator Pro
Calculate SDLT for residential property in England and Northern Ireland using published GOV.UK / HMRC rate bands. Generate a professional report after email verification.
Property and buyer details
How this works: SDLT is calculated from the purchase price, buyer status, additional-property position and non-UK resident status. Deposit and completion costs do not change SDLT; they only update the Live Purchase Summary.
Buyer status
Official GOV.UK source table
LondonGBP uses the published GOV.UK SDLT residential bands. GOV.UK does not provide a stable public SDLT calculation API, so the safer approach is to encode the official rate table and show the source clearly.
| Residential SDLT band | Standard rate | Additional property / company | Non-UK resident addition |
|---|---|---|---|
| £0 – £125,000 | 0% | +5% | +2% |
| £125,001 – £250,000 | 2% | +5% | +2% |
| £250,001 – £925,000 | 5% | +5% | +2% |
| £925,001 – £1,500,000 | 10% | +5% | +2% |
| Above £1,500,000 | 12% | +5% | +2% |
GOV.UK residential SDLT ratesHigher ratesNon-resident surcharge
Important disclaimer
This calculator is for general information only. It is not tax, legal, mortgage or financial advice. SDLT liability can depend on transaction structure, linked transactions, lease terms, companies, trusts, reliefs and other facts.