Government urged to clarify tax surcharge liability on rental properties
The High Value Council Tax Surcharge will affect residential properties valued at £2 million or more from April 2028, but questions remain over who should pay when these homes are rented out.
The government is facing calls to provide clearer guidance on the application of the High Value Council Tax Surcharge (HVCTS), a new tax set to impact high-value residential properties in England. Scheduled to come into effect in April 2028, the surcharge targets homes valued at £2 million or above. However, a key issue has emerged regarding whether landlords or tenants should bear responsibility for paying the surcharge on rental properties.
Propertymark, the professional body representing letting agents, has highlighted several unresolved practical challenges in its response to the government’s consultation on the tax. These include concerns about accurate property valuation, enforcement mechanisms, and the allocation of liability in the private rented sector.
Valuation and enforcement challenges for high-value homes
Propertymark emphasises that many high-value homes have not changed hands for several years, making it difficult to establish accurate valuations based solely on online estimates or recent market appraisals. The organisation warns that there may be insufficient qualified valuers available to assess the estimated 165,000 properties affected before the surcharge’s implementation date.
In addition, Propertymark questions whether local councils will have the necessary resources and funding to administer and enforce the scheme effectively. This raises concerns about the practicality of rolling out the surcharge without a clear operational framework in place.
Liability ambiguity in the private rented sector
One of the most significant points of contention is who should be liable for the surcharge when a property is rented. Currently, council tax liability can be flexible, with arrangements sometimes allowing tenants to pay directly. Propertymark suggests that landlords should have the option to decide whether they or their tenants are responsible for the surcharge. This approach would reflect existing council tax practices and provide clarity for all parties involved.
The consultation document also proposed an additional surcharge for non-UK resident owners of high-value properties. Propertymark opposes this measure, warning that it could deter international investment in the UK’s luxury housing market, which could have wider economic implications.
Context of the High Value Council Tax Surcharge
The HVCTS is part of the government’s wider strategy to raise revenue from high-value residential properties. It is expected to affect fewer than 1% of homes in England, targeting the upper end of the housing market. The surcharge is sometimes referred to as a “Mansion Tax” due to its focus on expensive properties.
While the tax aims to generate additional funds, the complexity of applying it fairly and effectively to rental properties has brought new challenges. The private rented sector includes a significant number of high-value homes, and the lack of clarity over payment responsibility could lead to disputes and administrative difficulties.
Practical implications for landlords and letting agents
For landlords with properties valued above the £2 million threshold, the introduction of the HVCTS will add a new financial consideration. If landlords are deemed liable, this could increase holding costs substantially. Conversely, if tenants are responsible, landlords will need to factor this into tenancy agreements and rent calculations.
Letting agents will need to advise landlords on the implications of the surcharge and may have to facilitate discussions with tenants regarding liability. Clear communication and documentation will be essential to avoid misunderstandings and potential legal disputes.
Valuation will also become a critical issue. Landlords and agents should prepare for the possibility of formal valuations being required and consider the impact on property marketing and portfolio management.
Uncertainties and what landlords should watch
Many details about the HVCTS remain unresolved, including the exact valuation methodology, enforcement procedures, and the final rules on liability for rented properties. The government has yet to publish definitive guidance, leaving landlords and agents in a state of uncertainty.
Landlords should monitor official announcements closely and seek professional advice when the government releases further information. It will be important to review tenancy agreements and council tax arrangements to ensure compliance once the surcharge is introduced.
Propertymark’s call for a clear and practical framework highlights the need for the government to address these outstanding issues before the surcharge’s April 2028 start date.
What landlords should consider now
- Review the valuation of any properties potentially affected by the surcharge and consider commissioning formal valuations if necessary.
- Assess current tenancy agreements to determine how council tax liabilities are assigned and whether adjustments will be needed.
- Engage with letting agents to understand the practicalities of surcharge payment and communication with tenants.
- Stay informed about government consultations and guidance to anticipate changes and prepare accordingly.
- Consider the financial impact of the surcharge on portfolio profitability and explore options to mitigate costs.
Supporting landlords through tax changes with TLA
The Landlord Association (TLA) offers members access to up-to-date compliance resources and practical guidance on emerging regulatory and tax issues such as the High Value Council Tax Surcharge. Through TLA’s developing property management platform, ORBIT, currently in BETA testing, landlords and letting agents can organise property records, monitor compliance activities, and securely store key documents related to council tax and tenancy agreements.
ORBIT’s tools can assist in tracking valuation reports and recording communications with tenants about tax liabilities, helping landlords stay organised as they prepare for new obligations. TLA membership also provides access to expert insights and alerts on government consultations, supporting landlords in making informed decisions amid regulatory uncertainty.
Explore TLA membership and learn more about ORBIT BETA access to enhance your property management and compliance readiness.
As the government moves towards implementing the High Value Council Tax Surcharge, landlords and letting agents should remain vigilant and proactive. Early preparation and clear understanding of the surcharge’s implications will be crucial to managing its impact on the private rented sector.
Sources: Letting Agent Today


