The UK government is gearing up to implement a new council tax surcharge targeting high-value properties, commonly dubbed the “mansion tax.” Set to be enforced from April 2028, this measure will apply to homes valued at over £2 million. As part of the preparations, tax authorities plan to conduct inspections to accurately assess property values, focusing on internal features and dimensions when necessary.
Under the proposed scheme, property owners will face additional charges based on their home’s value. Those whose properties are worth between £2 million and £2.5 million will be required to pay an extra £2,500 annually. This fee increases to £3,500 for homes valued up to £3.5 million, £5,000 for properties priced between £3.5 million and £5 million, and £7,500 for those exceeding the £5 million mark. The surcharge is intended to be independent of the current council tax and will be adjusted annually to reflect inflation rates.
Valuation officers will assess various factors during their inspections, including the size of the property, architectural features, and the number of bedrooms, bathrooms, and storeys. Property owners are expected to cooperate with these inspections, which will be conducted by prior agreement and in line with official guidelines.
There are penalties in place for those who do not comply with the inspection process. Property owners who deliberately obstruct valuation officers may incur a £200 fine. Additionally, failing to provide the necessary information without a valid excuse could lead to penalties reaching up to £500. These measures ensure that the tax authorities can effectively implement the surcharge and accurately evaluate properties.