mansion tax VALUATIONS
preparation and challenges
From April 2028, the government will introduce the High Value Residential Property Value Tax—commonly known as the “Mansion Tax.” Your liability will be based on your property’s value as of April 2026, with official assessments carried out by the Valuation Office Agency (VOA).
For properties valued at £2,000,000 to £2,500,000, the tax will be £2,500 per annum.
For properties valued above £2,500,000 and up to £3,500,000, the tax will be £3,500 per annum.
For properties above £3,500,000 and up to £5,000,000, the tax will be £5,000 per annum.
For properties above £5,000,000, the tax will be £7,500 per annum.
Why Act Now?
- Timing Is Everything: The closer your valuation is carried out to April 2026, the more accurately it will reflect true market conditions at the relevant date. Relying on outdated figures from a year or two earlier risks an inaccurate assessment—and could leave you unprepared.
- Strengthen Your Position: A recent, independent valuation gives you credible evidence if you need to challenge the VOA’s assessment. It’s much harder to dispute a valuation if you don’t have up-to-date, professional documentation.
- Plan With Confidence: Knowing your likely tax bracket ahead of time allows you to make informed decisions, whether you’re considering selling, remortgaging, or simply want peace of mind.
What We Offer in LONDON AND SURROUNDING COUNTIES
- Expert, Timely Valuations: Our RICS-qualified surveyors provide reports based on the latest market evidence, ensuring maximum relevance for your needs.
- Valid for Key Deadlines: Reports issued before April 2026 are valid for three months from the date of issue. After April 2026, all valuations are referenced specifically to that date—ensuring you’re ready for the new tax regime.
- Support for Challenges: Our reports can be used to support your case if you need to challenge the VOA’s valuation, or even to pre-empt their assessment if government guidance allows.
How It Works
- Accurate Assessment: We inspect your property and prepare a detailed, evidence-based report.
- Actionable Results: You receive a clear, client-friendly report to use for planning or as evidence if required.
Why Websters Surveyors?
- RICS-Qualified Experts
- Professionally Designed, Clear Reports
- Personal Support at Every Step
- Rigorous reports, backing up our conclusions to help in the event of a challenge to the tax payable
Ask us for a valuation as soon as possible after April 2026 and hold it ready for if and when you need it. Worst case - you'll have a better idea of what the tax is likely to be. This will help you budget for a later date.