Market Analysis

Properties worth more than £2m in England face mansion tax

Published by TEO Overseas Property on 28 November 2025

Owners of tens of thousands of properties in England valued at more than £2m are set to be hit with a surcharge of at least £2,500 from 2028, in what has been dubbed a mansion tax.

The annual charge will come on top of existing council tax, and will increase depending on the price of a property - with four separate bands.

The lowest band covers properties valued between £2m and £2.5m, while the highest charge of £7,500 will fall on homes valued at £5m or more. The majority of the properties affected are in London.

The Office for Budget Responsibility (OBR) expects the measure to raise about £400m a year by 2029-2030.

The High Value Council Tax Surcharge on properties valued at more than £2m is part of a range of tax rises included in Chancellor Rachel Reeves's Budget to allow her to meet her own self-imposed financial rules.

Announcing the change, the chancellor said she was taking "further steps to deal with a longstanding source of wealth inequality in our country".

However, the change was criticised by the Institute for Fiscal Studies (IFS) think tank for not going far enough.

  • Properties valued from £2m to £2.5m will pay £2,500
  • Properties valued from £2.5m to £3.5m will pay £3,500
  • Properties valued from £3.5m to £5m will pay £5,000
  • Properties valued at more than £5m will pay £7,500

While the charge is imposed on top of existing council tax, the money will go to the Treasury rather than the local authority.

In its assessment of the tax, the OBR said it expected the tax would begin to be reflected in the price of properties, with "price bunching to just below each band boundary".

This refers to the incentive to value a property just below the price at which it would become liable for the charge - something which "reduces the estimated yield by reducing the number of properties in scope of the measure".

The band at which properties will become liable for the charge will increase in line with inflation.

In its assessment, the OBR said the costings for the new surcharge had a "high" degree of uncertainty.

The government will now hold a consultation on what reliefs and exemptions will be put in place - including for things like people who have to live in a high-value property as a result of their job.

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