April 2025 Stamp Duty Changes: One Year On, What Really Happened to the Property Market

The SDLT thresholds introduced as a temporary measure during the COVID pandemic were allowed to expire on 31 March 2025. From 1 April 2025, the standard nil-rate band reverted from £250,000 to £125,000, and the first-time buyer nil-rate band fell from £425,000 to £300,000.

These changes were widely anticipated and extensively reported, which is precisely why they generated the market distortions visible in the data. Use our pre vs post April 2025 comparison tool to see the exact impact on your purchase price.

Economists call it “forestalling”: the behaviour of buyers who accelerate transactions before an announced tax rise, or delay them to benefit from a cut. The UK property market has now produced three textbook examples in less than 20 years — and the April 2025 episode is the largest of them all.

HMRC transaction data shows that the period between January and March 2025 saw approximately 77,480 additional residential transactions compared to the same quarter in 2024, a 22% year-on-year surge. This was one of the largest single-quarter volume spikes in the SDLT era.

Conveyancers and solicitors reported record workloads throughout January to March. Some firms operated extended hours, and estate agents noted that properties were being snapped up within days of listing as buyers raced to exchange before the end of March.

The surge was concentrated in the £125,000–£425,000 price bracket, precisely the range most affected by the threshold changes. Properties above £500,000 saw relatively normal transaction volumes, as the April changes had a smaller proportional impact at higher prices.

The Q2 2025 (April–June) data confirmed what analysts expected: a sharp fall in transaction volumes following the deadline rush. HMRC data indicates transactions fell approximately 15–20% compared to Q2 2024.

By Q3 2025, the market had broadly absorbed the higher rates. Lower interest rates (the Bank of England cut the base rate twice in H2 2025) offset some of the affordability impact and supported a gradual recovery in transaction volumes heading into early 2026.

First-time buyers faced the most significant change. The reduction in the FTB nil-rate band from £425,000 to £300,000 meant buyers purchasing between £300,001 and £500,000 now pay 5% SDLT on the amount above £300,000, up from 0% on the same band under the old rules.

For FTBs in London and the South East, where average first purchase prices are above £350,000, the change was most impactful. Data shows a measurable shift in FTB activity toward properties priced just below £300,000, consistent with buyers optimising their purchases to stay within the new nil-rate threshold.

Use our stamp duty calculator to calculate your exact FTB liability under the current rates, or our FTB vs standard rate comparison to understand your position.

Investors and second-home buyers faced not one deadline but two. The additional dwelling surcharge rose from 3% to 5% on 31 October 2024, and then the standard nil-rate band fell on 1 April 2025. Anyone who missed the first deadline still had a strong incentive to beat the second. The result was a 13% jump in higher rates additional dwelling (HRAD) transactions and a 52% jump in HRAD-driven SDLT revenue year-on-year.

Two distinct waves of investor activity defined 2024-25. First, BTL buyers accelerated completions ahead of October 2024 to lock in the 3% surcharge. Second, those who missed October still had a reason to complete before April 2025 to avoid the lower nil-rate band. Industry analysts now report sustained suppression of BTL demand under the 5% surcharge, with yields harder to achieve at entry. See our second-home & buy-to-let calculator for the current numbers.

Corporate purchases (limited-company structures used to hold rental property) were less affected by the surcharge timing, since the 17% flat rate already applies on residential properties above £500,000. But the threshold change still added a marginal incentive to complete before April. Compare structures with our company vs personal calculator.

Despite predictions of a price correction, UK average house prices proved resilient in the year to March 2026, rising approximately 3% nationally. However, the impact was uneven across regions.

The divergence reflects a structural shift: buyers are increasingly favouring northern city-regions where properties fall below, or comfortably within, SDLT thresholds. This regional divergence is likely to persist and may accelerate through 2026.

The overall SDLT rate structure above £250,000 is largely unchanged; the impact of the April 2025 reversion is concentrated in the lower and middle price ranges where the nil-rate reductions bite hardest. Use our comparison calculator to see the full before-and-after picture for any purchase price.