Stamp Duty on £125,000 Property — Additional Property
Additional property / buy-to-let. Rates from 1 April 2025.
Property price
£125,000
SDLT payable
£6,250
Effective rate
5%
Total cost (incl. SDLT)
£131,250
SDLT breakdown by band
| Band | Rate | SDLT in band |
|---|---|---|
| £0 – £125,000 | 5% | £6,250 |
| Total SDLT | £6,250 | |
Frequently asked questions
How much Stamp Duty is due on a £125,000 property?
SDLT of £6,250 is payable on a £125,000 additional property / buy-to-let purchase. The effective rate is 5% across the full purchase price.
When do I pay Stamp Duty?
SDLT must be paid within 14 days of completion. Your solicitor or conveyancer typically handles the SDLT return and payment as part of the conveyancing process — the SDLT is usually included in the monies you transfer on completion day.
Can I add Stamp Duty to my mortgage?
Some lenders will allow SDLT to be added to your mortgage, increasing your loan amount. However, this means you pay interest on the SDLT cost over the full mortgage term, which is more expensive in the long run. It is generally advisable to pay SDLT from savings if possible.