Stamp Duty is the biggest additional cost for many buyers. In England and Northern Ireland, the first-time buyer nil-rate threshold has been £300,000 since 1 April 2025 (it was temporarily £425,000 before that). On a £350,000 home: first-time buyers pay 5% on £50,000 = £2,500. Non-first-time buyers pay: 0% on first £125,000, 2% on next £125,000, 5% on remaining £100,000 = £7,500 total. Scotland (LBTT) and Wales (LTT) have their own rates. Use HMRC's SDLT calculator or our
stamp duty calculator for your exact figure before making offers.