The UK government is preparing to implement a new council tax surcharge, colloquially known as the “mansion tax,” targeting high-value properties. Set to take effect in April 2028, the measure will apply to homes valued over £2 million. To accurately assess these properties, tax authorities plan to conduct inspections where necessary, focusing on internal features and measurements to determine their value.
Under the proposed scheme, property owners will face varying levels of surcharge based on the value of their homes. Those with properties valued between £2 million and £2.5 million will incur an annual charge of £2,500. This amount increases to £3,500 for homes worth up to £3.5 million, £5,000 for properties valued between £3.5 million and £5 million, and £7,500 for homes exceeding £5 million. Importantly, this surcharge will be independent of the existing council tax and is anticipated to rise annually in line with inflation.
Valuation officers will be tasked with evaluating several property characteristics to determine worth. This includes the property size, architectural design, number of bedrooms and bathrooms, and the number of storeys. Homeowners who deliberately impede these valuation assessments may face a £200 fine, while those who fail to provide necessary information without a valid reason could incur penalties of up to £500.
The government assures that all inspections will be conducted by prior arrangement with property owners, adhering to established official guidelines. These measures underscore the government’s commitment to ensuring tax assessments are fair and accurate, reflecting the true value of high-end properties. Through these steps, authorities aim to enforce the new surcharge effectively while maintaining transparency and cooperation with homeowners.