UK Government Authorizes Property Inspections for Mansion Tax

The Government of the United Kingdom confirmed that valuation officers from HM Revenue & Customs may conduct internal inspections of high-value properties to implement a new council tax surcharge. The levy, frequently referred to as the mansion tax, applies to properties valued at more than £2 million and adds an annual charge ranging from £2,500 to £7,500.

Homeowners who obstruct inspectors face fines of up to £200, while those who fail to provide requested information may be fined up to £500. To support lower-income homeowners—specifically those earning £35,000 or less annually or holding savings below £16,000—ministers have proposed a deferral scheme that is currently under consultation.

Opposition leaders have criticized the enforcement measures. Shadow Chancellor Mel Stride and Shadow Housing Secretary James Cleverly characterized the inspections as the deployment of "council tax police." The government maintains the policy is necessary to correct systemic unfairness in existing council tax valuations.