Mansion Tax 2028? The High Value Council Tax Surcharge Explained
From April 2028, residential properties in England worth £2m or more face an annual surcharge of £2,500–£7,500. Here is the band structure, how the VOA s targeted valuation exercise works, and how the surcharge differs from earlier mansion tax proposals.
Last reviewed by the Homedata editorial team — 4 May 2026
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The High Value Council Tax Surcharge (HVCTS) is an annual charge on residential properties in England worth £2 million or more, commencing April 2028. It revives, in a confirmed and structured form, the debate about an annual tax on high-value property — but it does not work the way a classic mansion tax does, and it does not use the 1991 council tax bands. Understanding the actual mechanism matters for anyone planning around the top end of the market.
Status: the surcharge is confirmed for April 2028 commencement. The bands and amounts set out below are taken from the HM Treasury High Value Council Tax Surcharge policy paper. Implementing secondary legislation and the Valuation Office Agency's targeted valuation programme are running in advance of commencement.
What the HVCTS does
The HVCTS is an annual charge applied to residential properties in England with a 2026 valuation of £2 million or more. It sits alongside the existing council tax bill — it does not replace council tax, it does not change a property's standard 1991-based band, and it does not depend on what band the property falls into. It is a separate, targeted charge on high-value homes only.
The bands and annual amounts published in the HM Treasury policy paper are:
| 2026 valuation | Annual surcharge from April 2028 | Cumulative 4-year liability (2028/29 – 2031/32) |
|---|---|---|
| £2m – £2.499m | £2,500 | £10,000 |
| £2.5m – £3.499m | £3,500 | £14,000 |
| £3.5m – £4.999m | £5,000 | £20,000 |
| £5m+ | £7,500 | £30,000 |
Source: HM Treasury — High Value Council Tax Surcharge policy paper. The cumulative figures assume the bands remain at the published amounts across the four years; future Finance Acts could revise them.
The VOA targeted valuation exercise
Because the standard council tax band system uses 1991 valuations, it cannot be used to identify £2m+ homes in 2026 terms — a Band H property in a northern city may be worth substantially less than £2m today, while plenty of £2m+ homes elsewhere sit in lower bands. The Valuation Office Agency is therefore conducting a separate targeted valuation exercise for high-value residential properties, independent of the standard council tax band register.
The targeted exercise identifies properties likely to exceed the £2m threshold and assigns each a 2026 valuation for HVCTS purposes only. Owners will be notified of the valuation outcome ahead of April 2028 commencement and will have rights to challenge the valuation through standard VOA appeals processes. The exercise does not affect the property's existing council tax band.
How the surcharge is collected
- Liability falls on the property — the occupier is liable for the surcharge in the same way as for council tax, including under tenancy arrangements where council tax is the tenant's responsibility
- Billing authorities (local councils) collect the surcharge alongside the standard council tax bill
- The 2026 VOA valuation determines the band; subsequent revaluations would be needed to move a property between bands during the surcharge's lifetime
- Standard council tax discounts and exemptions are not the primary route into HVCTS treatment — the surcharge applies wherever a property has a qualifying 2026 valuation
Is this a mansion tax?
"Mansion tax" has been used in political debate since at least the 2010s, describing various proposals for an annual charge on high-value properties. The HVCTS shares the underlying principle — an annual charge on residential property based on current market value — but takes a fixed-band, four-tier structure rather than a percentage of value:
| Feature | Classic "mansion tax" proposal | HVCTS |
|---|---|---|
| Valuation basis | Current market value | 2026 VOA targeted valuation |
| Threshold | Typically £2m+ at current values | £2m+ at 2026 valuation |
| Charge structure | Percentage of value above threshold | Fixed amounts in four bands (£2,500 – £7,500) |
| Collection mechanism | New charge via self-assessment | Added to council tax bill by billing authority |
| Current status | Not enacted | Confirmed — commences April 2028 |
The HVCTS is closer to a banded high-value property tax than a percentage-of-value mansion tax. The distinction matters at the top of the market: a £20m property pays the same £7,500 as a £5m property, which would not be the case under a percentage-based design.
Who is affected
- Owner-occupiers of £2m+ residential properties, who face a higher annual bill from April 2028
- Landlords of £2m+ properties — the surcharge follows the same liability rules as council tax, so the occupier is generally liable unless the tenancy passes council tax to the landlord
- Valuation professionals and mortgage advisers — who need to factor the surcharge into affordability assessments and resale value adjustments at the top of the market
- Property Developers building high-value homes that will fall above the £2m threshold — buyer appetite and resale values may be influenced by the cumulative four-year liability
What to do now
- Estimate the 2026 value. Use the HVCTS surcharge calculator to see the annual band and four-year cumulative liability for a given property value.
- Watch for a VOA notification. If your property is identified by the targeted valuation exercise, you will receive a 2026 valuation notice with appeal rights. The valuation is independent of your existing council tax band.
- Review affordability modelling for £2m+ properties. Lenders, brokers and developers assessing schemes at the top of the market should include the surcharge in long-run cost projections — particularly the cumulative four-year figures, which run into tens of thousands of pounds.
Council tax data and high-value property identification
The HVCTS uses a separate VOA 2026 valuation, but the standard council tax band still matters for the underlying bill and for portfolio screening. The Homedata Council Tax API returns the current council tax band and billing authority for any UK address or UPRN — useful as a first-pass filter when identifying properties likely to fall into the HVCTS scope.
Try this: screen for likely HVCTS properties
Query the Homedata Council Tax Bands API for any UPRN or postcode and combine with the HVCTS surcharge calculator to model annual and cumulative liability for £2m+ properties. See the API documentation or get a free API key.
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Council tax band data by UPRN
Current council tax bands and billing authority for any UK address. Useful as a first-pass screen for HVCTS exposure, affordability modelling, and portfolio analysis at the top of the market.