The UK government is gearing up to implement a new council tax surcharge targeting high-value properties, widely known as the “mansion tax.” Scheduled to come into effect in April 2028, this measure will impact properties valued over £2 million. As part of the preparations, tax authorities plan to conduct inspections to accurately assess the value of such properties, especially when internal features or measurements are needed.
Owners of properties valued between £2 million and £2.5 million can expect to pay an annual surcharge of £2,500. This fee increases to £3,500 for homes valued up to £3.5 million, £5,000 for properties between £3.5 million and £5 million, and £7,500 for those exceeding £5 million. The surcharge will be distinct from the existing council tax and is planned to adjust annually in line with inflation.
Valuation officers will evaluate various aspects of a property, including its size, architectural characteristics, number of bedrooms and bathrooms, and the number of storeys. To ensure compliance, property owners who deliberately hinder the work of valuation officers could incur a fine of £200. Additionally, failing to provide necessary information without a valid reason could lead to penalties of up to £500.
The government has emphasized that inspections will occur by prior arrangement with homeowners and will adhere to official guidelines. This approach aims to ensure transparency and cooperation in assessing the properties for taxation under the new scheme.