Key Highlights

  • England's council tax system continues to rely on 1991 property valuations, with no nationwide revaluation announced.
  • The government has instead introduced a High Value Council Tax Surcharge for properties valued above £2m from April 2028.
  • The surcharge will apply through four value bands, with revenue directed to central government rather than local authorities.
  • Economists and policy groups continue to argue that the existing council tax system is outdated and places a proportionally heavier burden on lower-income households.
  • Ministers maintain that targeted changes are preferable to a full overhaul of the current council tax framework.

Every council tax bill issued in England continues to be calculated using property values assessed in April 1991. Despite decades of house price growth and repeated calls for reform, the basic structure of council tax remains unchanged.

Successive governments have considered changes to the system, yet comprehensive reform has repeatedly been postponed. Instead of replacing the existing band structure or conducting a nationwide property revaluation, ministers have chosen a more limited approach by introducing an additional charge on the country's most valuable homes.

What Ministers Have Decided

The government's principal property tax reform is the High Value Council Tax Surcharge, commonly referred to as the "mansion tax."

Originally announced in the Autumn 2025 Budget, the surcharge will apply from April 2028 to residential properties in England valued at more than £2m using 2026 valuations.

According to proposals outlined by the House of Commons Library, the surcharge will operate across four bands:

  • £2,500 annually for homes valued between £2m and £2.5m
  • £3,500 annually for homes valued between £2.5m and £3.5m
  • £5,000 annually for homes valued between £3.5m and £5m
  • £7,500 annually for homes valued above £5m

Government estimates suggest approximately 165,000 properties will fall within the scope of the surcharge, representing fewer than 1% of homes in England.

Unlike standard council tax, liability for the surcharge rests with property owners rather than occupiers, while revenue generated will be collected by central government instead of local councils.

A public consultation on the design of the surcharge concluded on 14 July 2026, with ministers currently reviewing responses.

Reform, But Not the Reform Many Wanted

Although the surcharge represents a significant policy change for higher-value properties, it does not alter the underlying council tax system.

The government has not announced plans to revalue England's approximately 25 million homes or replace the existing banded structure with a system based on current market values.

Many economists, policy organisations and think tanks have argued for comprehensive reform, suggesting that council tax should better reflect today's property values rather than assessments made more than three decades ago.

Since becoming Prime Minister in July 2026, Andy Burnham has continued the government's existing approach, prioritising the implementation of the surcharge rather than launching a broader review of council tax.

Why This Matters

Council tax remains one of the most important sources of funding for local government services, helping finance social care, waste collection, road maintenance, libraries and other essential community services.

Because the system continues to rely on 1991 property values, critics argue that households in areas where prices have risen significantly since then may pay relatively less than those living in regions with slower property appreciation.

Campaign groups also argue that lower-income households contribute a larger share of their income through council tax than wealthier households.

Debt advice organisations have highlighted growing council tax arrears across England, suggesting that affordability remains a significant issue for many families.

Against this backdrop, supporters of wider reform argue that the new surcharge affects only a small number of high-value properties and does not address broader concerns surrounding fairness across the existing council tax system.

Risks, Limitations and Opposing Views

Despite calls for comprehensive reform, governments have remained cautious.

A nationwide property revaluation would inevitably create both winners and losers, with many households potentially moving into higher council tax bands. Such changes are widely regarded as politically sensitive.

Developments in Wales illustrate these challenges. Planned council tax reforms have been delayed until 2028, reflecting concerns about introducing significant changes during ongoing cost-of-living pressures.

The surcharge itself also presents uncertainties.

Its long-term revenue will depend on property values at the upper end of the housing market remaining resilient. Any significant decline in luxury property prices could reduce projected receipts.

Questions also remain regarding future governments. While no changes have been announced, some commentators have suggested that a future administration could lower the qualifying property threshold, although ministers have not confirmed any such plans.

Supporters of the current system argue that council tax remains relatively stable, predictable and inexpensive to administer compared with more comprehensive alternatives.

Outlook

For now, England's council tax framework remains largely unchanged.

Rather than undertaking a wholesale redesign, the government has opted for a targeted surcharge affecting only the highest-value residential properties while leaving the broader banding system intact.

The debate over council tax reform, however, is unlikely to disappear. Economists, charities and local government experts continue to argue that a tax based on property values from 1991 no longer reflects today's housing market.

While the introduction of the High Value Council Tax Surcharge marks a notable adjustment, the broader question of whether England should modernise its council tax system has once again been postponed rather than resolved.