The mansion tax has been discussed, debated and speculated about for years. Now it is confirmed. From April 2028, an annual charge will apply to all residential properties in England valued above £2million. For homeowners, buyers and sellers across Virginia Water, Wentworth Estate and Sunningdale, it is worth understanding exactly what this means.
We wrote about this briefly when the Autumn Budget was announced in 2024, and again in December 2025 when further details emerged. Since then, the questions we receive from clients have become more specific. People want to understand the numbers, how properties will be valued, and what practical steps they should be taking. This blog sets out to answer those questions honestly.
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What exactly is the mansion tax?
The mansion tax is an annual surcharge on residential properties valued at £2million or more. The charge starts in April 2028, with valuations based on what your property is worth now, in 2026. It will be collected in addition to council tax, not instead of it. Unlike stamp duty, which is paid once when you purchase a property, this is a recurring annual cost that applies for as long as you own a qualifying home.
The charge is banded according to property value, with the first assessment based on 2026 valuations carried out by the Valuation Office Agency. Revaluations are expected every five years.
The annual charges by band
- £2m to £2.5m: £2,500 per year (around £208 per month)
- £2.5m to £3.5m: £3,500 per year (around £292 per month)
- £3.5m to £5m: £5,000 per year (around £417 per month)
- Above £5m: £7,500 per year (around £625 per month)
For a homeowner on the Wentworth Estate with a property valued at £4 million, that is an additional £5,000 per year on top of council tax, simply for continuing to own their home. The government retains the ability to adjust bands and rates in future Budgets, and details around the appeals process and the treatment of corporate or trust-held property are still to be fully confirmed.
Why does this matter particularly in Virginia Water and Wentworth?
The concentration of properties above the £2million threshold is higher in this part of Surrey than almost anywhere outside central London. The majority of homes on the Wentworth Estate fall within scope. A significant number of properties across Virginia Water, Sunningdale and Ascot do too. That means this charge is not an abstract policy concern for our clients. It is a real annual cost that needs to be factored into decisions about buying, selling, holding or letting.
We want to be straightforward about that. It would be easy to say the charge is modest relative to overall property values, and in some respects, that is true. But it is also a new and permanent cost of ownership that did not exist before, and buyers in this market are well informed. They will factor it in.
How will properties be valued?
The Valuation Office Agency will determine which band each property falls into. The initial valuations will be based on property values as they stood in 2026, and revaluations are expected every five years thereafter.
This has some important implications. Owners who have seen significant capital growth over recent years may find themselves placed in a higher band than they might expect based on what they originally paid. Long-term owners of properties that have appreciated considerably since purchase will need to take particular care.
There is expected to be a formal process for challenging a valuation, though the details of this have not yet been published. (We will share updates with our clients as they become available.)
What does this mean if you are thinking of selling?
The question of timing becomes more relevant with a confirmed charge date approaching. Selling ahead of April 2028 means marketing to a buyer audience that has not yet started paying the charge. That is not a reason to rush a decision you are not ready to make, but it is worth considering if you were already planning to sell within the next two or three years.
We are also seeing some early movement around the £2million threshold. Buyers are more sensitive to where a property sits relative to that number, and sellers of homes priced close to £2million are having to think carefully about positioning. A modest adjustment in guide price can, in some cases, open the door to a noticeably wider pool of buyers.
For properties well above the threshold, the charge is simply part of the conversation now. Buyers at this level are sophisticated, and their advisors will raise it. Being prepared to discuss it openly, and having a clear view of how your property sits within the valuation bands, puts you in a stronger position.
Practical steps for sellers
- Talk to us about where your property sits relative to the valuation bands before you set a guide price.
- If you were already considering selling in the next few years, think about whether bringing that forward makes sense given the April 2028 date.
- Make sure your solicitor is up to date with the legislation as it develops, particularly around valuation challenges.
What does this mean if you are thinking of buying?
The mansion tax does not change the fundamental appeal of Virginia Water and Wentworth as places to live. The schooling, the privacy, the access to open space, the community, the transport links, the Wentworth Club and everything that surrounds it, none of that changes because of an annual charge.
What it does change is the financial modelling required before you commit. When assessing the total cost of owning a property above £2million, the annual charge now needs to be part of that calculation alongside council tax, service charges and running costs.
It is also worth thinking about your intended holding period. Over ten or fifteen years, the cumulative cost of the charge is not insignificant, and there is no guarantee that rates will not increase in future. Taking independent financial and legal advice as part of your purchase process is something we would always recommend.
Things to consider as a buyer
- Factor the annual charge into your total cost of ownership calculation from the outset.
- Consider your likely holding period and the cumulative cost over that time.
- If a property sits just above the £2million threshold, understand what that means for your annual liability compared with a property just below it.
- Seek independent legal and financial advice, particularly around how revaluations may affect your band over time.
Questions we are regularly being asked
Does it apply to second homes and investment properties?
Yes. The charge applies to all qualifying residential properties regardless of whether they are a primary residence, a second home or a buy-to-let investment.
What about properties held through a company or trust?
The government has indicated that corporate structures will not provide a route around the charge. Specific rules for trust and company-owned property are expected to be confirmed before April 2028.
My property is just above £2million. Does it make sense to price below the threshold?
This is a question we are being asked more regularly, and the honest answer is that it depends on the property and the current market. In some cases, a modest price adjustment opens up a noticeably larger buyer pool. In others, it represents an unnecessary concession. It is the kind of decision that benefits from good local knowledge of where demand actually sits, and we are happy to talk it through.
Will I be able to appeal the valuation?
A formal appeals mechanism is expected to be part of the legislation, but the details have not yet been published. We will keep clients informed as the picture becomes clearer ahead of 2028.
Our view
We aim to give our clients a clear and honest picture of the market, including the parts that are less comfortable. The mansion tax is a real cost, and it will influence how buyers in this price range think about what they are taking on.
At the same time, demand for well-positioned, well-presented homes in Virginia Water and on the Wentworth Estate has remained resilient through significant policy changes before, and we expect it to remain so. The area offers something that is genuinely difficult to replicate elsewhere in the Home Counties, and that continues to attract buyers who weigh quality of life alongside the numbers.
What matters now is making sure decisions are well informed rather than made without understanding the full picture. That is where we can help.
As always, we would encourage anyone making a significant property decision to take independent legal and financial advice specific to their own circumstances. The details around the mansion tax are still developing, and we will continue to update our clients as things become clearer ahead of April 2028.
Are you considering your next step?
As trusted property experts in Virginia Water, the Wentworth Estate and the wider Surrey market, we are here to offer clear, tailored advice based on decades of local insight. Whether you are reviewing your property plans, considering a sale or preparing to buy, our team can help you navigate the current landscape with confidence.
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If you are thinking of moving in or out of the area, make sure you take a look at our amazing catalogue of properties for sale in Virginia Water and the surrounding areas. If you’d like to speak to someone about properties to let in Virginia Water, a member of our expert team would be happy to help. You can call us on 01344 843000 or email us. You can also follow us on Facebook, Instagram, and LinkedIn to stay updated.
