Stamp Duty Changes for Westminster Buyers in 2026

The recent budget announcements have introduced significant shifts in the Stamp Duty Land Tax (SDLT) landscape, particularly affecting high-value property transactions in prime Central London areas like Westminster (SW1).

"For properties over £1.5m, the new tiered rates mean strategic timing is more crucial than ever. We are advising clients to review their completion dates immediately."

Key Changes at a Glance

• Threshold Adjustments The nil-rate band has been adjusted, impacting first-time buyers and home movers differently.
• Surcharge for Non-Residents The surcharge for overseas buyers has seen a marginal increase, tailored to cool the international investment market slightly while retaining appeal.
• Additional Dwellings The 3% surcharge on second homes remains, but with tighter scrutiny on mixed-use relief claims.

What This Means for You

If you are looking to purchase a property in Westminster over £1.5M, these changes could alter your tax liability by tens of thousands of pounds. It is more critical than ever to have a clear tax strategy before exchanging contracts.

Our Conveyancing team has updated our fee calculators and advisory notes to reflect these 2026 updates. We recommend scheduling a consultation early in your property search to budget effectively.