AUTUMN BUDGET 2025: WHAT DOES IT MEAN FOR THE HOUSING MARKET?
The Chancellor, Rachel Reeves, has delivered the Autumn Budget 2025, and while some widely-rumoured changes didn’t materialise, there are still major implications for homeowners, landlords and anyone planning a move over the next few years.
Here’s what you need to know.
AT A GLANCE: KEY HOUSING ANNOUNCEMENTS
• New ‘mansion tax’ on homes worth more than £2 million from April 2028
• No changes to Stamp Duty – despite months of speculation
• Landlords to pay an additional 2% income tax on rental profits
Let’s break down what this actually means in practice.
A NEW ‘MANSION TAX’ ON £2M+ HOMES
From April 2028, a new annual “mansion tax” will apply to homes valued over £2 million. This charge is paid on top of council tax and will be the responsibility of the owner, not the occupier.
The proposed annual charges are:
• £2,500 per year for homes valued over £2 million
• £7,500 per year for homes valued over £5 million
While the headline sounds dramatic, the number of properties affected is relatively small:
• Less than 0.5% of all sales agreed this year have been for homes with an asking price above £2 million
• Only around 1% of homes currently for sale are priced above this threshold
That said, the market is already reacting. Sales agreed on £2m+ homes are down 13% year-on-year, suggesting buyers and sellers at the top end have been repositioning in anticipation of this kind of change.
WHY A TAX ON THE TOP END STILL AFFECTS EVERYONE
On paper, this looks like a highly targeted tax aimed at a small, wealthy segment of the market. In reality, the effects are likely to ripple outwards.
As one property expert, Colleen Babcock, points out:
“The property market needs less taxation, not more, to encourage and enable movement. Today’s announcement of a mansion tax could lead to some distortion at the top end of the market, particularly as the implementation date draws closer.”
There are a few reasons for this:
• Knock-on pricing effects: When the very top end slows or reprices, it can drag on the tiers below as chains become more fragile and sellers adjust expectations.
• Reduced mobility: Extra friction at the upper end can reduce overall market turnover, affecting everyone from first-time buyers to families trading up.
• Regional imbalance: This tax will disproportionately hit London and the South of England, where £2m+ properties are more common and where the market is still recovering from April’s Stamp Duty increase.
Even if fewer than 0.5% of sales are directly impacted, a slower, more cautious market can affect financing, buyer confidence, and the speed at which people can move at all price points.
WHEN DOES THE MANSION TAX START?
The tax is scheduled to apply from April 2028. That gives affected homeowners a window of time to:
• Review whether they plan to hold, sell, or restructure ownership
• Take advice on valuation, tax planning and long-term strategy
However, as implementation gets closer, we’re likely to see:
• Some owners bringing forward sales to avoid the new annual charge
• Buyers negotiating harder on price to account for the ongoing cost
HOW WILL THE MANSION TAX AFFECT HOMEOWNERS?
If you own (or are considering buying) a home above £2 million, you’ll need to factor in an annual running cost that simply didn’t exist before.
For affected owners, this is effectively an additional fixed annual bill that:
• Reduces the net yield on high-value properties
• May influence whether owners choose to let, sell, or hold
• Could make some properties less attractive as long-term investments or second homes
For homeowners just below the £2m threshold, there may be subtle pressure to keep valuations below the line, especially as April 2028 approaches.
NO CHANGES TO STAMP DUTY – FOR NOW
Despite heavy speculation, the Budget did not include any changes to Stamp Duty.
That means:
• Existing Stamp Duty thresholds and rates remain in place
• Buyers and sellers can continue planning within the current framework
Given the recent Stamp Duty increase in April, the absence of further change will be a relief to many, but the combination of higher transaction taxes and now an additional annual charge at the top end will still weigh on overall market activity.
LANDLORDS HIT WITH AN EXTRA 2% TAX ON RENTAL INCOME
On top of the mansion tax, the Budget also confirmed that landlords will pay an additional 2% income tax on rental profits.
This comes on the back of years of tighter taxation for landlords, including:
• The phased reduction of mortgage interest relief
• The additional 3% Stamp Duty surcharge on second homes and buy-to-lets
The extra 2% income tax will:
• Further squeeze net returns for many landlords
• Likely push some towards selling up, especially those with highly leveraged portfolios
• Potentially lead to higher rents over time, as landlords try to pass on some of the increased costs to tenants
For tenants, this is unlikely to be good news. A smaller pool of rental stock and higher landlord costs generally mean reduced choice and upward pressure on rents.
WHAT DOES ALL THIS MEAN IF YOU’RE…
…a homeowner in a £2m+ property?
You’ll need to factor in a new annual cost from April 2028 and consider whether to:
• Adjust your long-term ownership plans
• Seek a professional valuation closer to implementation
• Take advice on potential mitigation or restructuring
…a buyer at or near the £2m mark?
You may see:
• Increased caution among sellers and buyers
• More negotiation around price to offset the annual tax
• A clearer premium placed on truly exceptional properties that justify the extra cost
…a landlord?
Expect:
• A further hit to net income from the additional 2% tax on rental profits
• More importance placed on portfolio efficiency, void management, and financing costs
• A need to review whether each property still earns its place in your portfolio
…a typical buyer, seller or mover below the £2m threshold?
The tax may not touch you directly, but:
• A slower, more cautious top end can feed back into the overall pace and confidence of the market
• Lending appetite, chain length, and transaction times can all be affected by overall activity levels
FINAL THOUGHTS
While the new mansion tax is aimed squarely at high-value homes, housing markets are interconnected. Taxes that appear targeted at a narrow band often create wider turbulence – particularly in regions like London and the South East, where £2m+ homes play a key role in local chains and pricing.
Combined with the additional 2% tax on rental income, this Budget continues the trend of using property as a tax base, rather than as a sector to be actively stimulated.
If you’re a homeowner, landlord, or planning a move in the next few years, it’s worth:
• Reviewing your position early
• Running the numbers on your ongoing costs and returns
• Getting tailored advice from your tax adviser and property professional
Because while less than 0.5% of sales may sit above the £2m mark, the effects of policy changes at the top rarely stay there.
The Chancellor, Rachel Reeves, has delivered the Autumn Budget 2025, and while some widely-rumoured changes didn’t materialise, there are still major implications for homeowners, landlords and anyone planning a move over the next few years.
Here’s what you need to know.
AT A GLANCE: KEY HOUSING ANNOUNCEMENTS
• New ‘mansion tax’ on homes worth more than £2 million from April 2028
• No changes to Stamp Duty – despite months of speculation
• Landlords to pay an additional 2% income tax on rental profits
Let’s break down what this actually means in practice.
A NEW ‘MANSION TAX’ ON £2M+ HOMES
From April 2028, a new annual “mansion tax” will apply to homes valued over £2 million. This charge is paid on top of council tax and will be the responsibility of the owner, not the occupier.
The proposed annual charges are:
• £2,500 per year for homes valued over £2 million
• £7,500 per year for homes valued over £5 million
While the headline sounds dramatic, the number of properties affected is relatively small:
• Less than 0.5% of all sales agreed this year have been for homes with an asking price above £2 million
• Only around 1% of homes currently for sale are priced above this threshold
That said, the market is already reacting. Sales agreed on £2m+ homes are down 13% year-on-year, suggesting buyers and sellers at the top end have been repositioning in anticipation of this kind of change.
WHY A TAX ON THE TOP END STILL AFFECTS EVERYONE
On paper, this looks like a highly targeted tax aimed at a small, wealthy segment of the market. In reality, the effects are likely to ripple outwards.
As one property expert, Colleen Babcock, points out:
“The property market needs less taxation, not more, to encourage and enable movement. Today’s announcement of a mansion tax could lead to some distortion at the top end of the market, particularly as the implementation date draws closer.”
There are a few reasons for this:
• Knock-on pricing effects: When the very top end slows or reprices, it can drag on the tiers below as chains become more fragile and sellers adjust expectations.
• Reduced mobility: Extra friction at the upper end can reduce overall market turnover, affecting everyone from first-time buyers to families trading up.
• Regional imbalance: This tax will disproportionately hit London and the South of England, where £2m+ properties are more common and where the market is still recovering from April’s Stamp Duty increase.
Even if fewer than 0.5% of sales are directly impacted, a slower, more cautious market can affect financing, buyer confidence, and the speed at which people can move at all price points.
WHEN DOES THE MANSION TAX START?
The tax is scheduled to apply from April 2028. That gives affected homeowners a window of time to:
• Review whether they plan to hold, sell, or restructure ownership
• Take advice on valuation, tax planning and long-term strategy
However, as implementation gets closer, we’re likely to see:
• Some owners bringing forward sales to avoid the new annual charge
• Buyers negotiating harder on price to account for the ongoing cost
HOW WILL THE MANSION TAX AFFECT HOMEOWNERS?
If you own (or are considering buying) a home above £2 million, you’ll need to factor in an annual running cost that simply didn’t exist before.
For affected owners, this is effectively an additional fixed annual bill that:
• Reduces the net yield on high-value properties
• May influence whether owners choose to let, sell, or hold
• Could make some properties less attractive as long-term investments or second homes
For homeowners just below the £2m threshold, there may be subtle pressure to keep valuations below the line, especially as April 2028 approaches.
NO CHANGES TO STAMP DUTY – FOR NOW
Despite heavy speculation, the Budget did not include any changes to Stamp Duty.
That means:
• Existing Stamp Duty thresholds and rates remain in place
• Buyers and sellers can continue planning within the current framework
Given the recent Stamp Duty increase in April, the absence of further change will be a relief to many, but the combination of higher transaction taxes and now an additional annual charge at the top end will still weigh on overall market activity.
LANDLORDS HIT WITH AN EXTRA 2% TAX ON RENTAL INCOME
On top of the mansion tax, the Budget also confirmed that landlords will pay an additional 2% income tax on rental profits.
This comes on the back of years of tighter taxation for landlords, including:
• The phased reduction of mortgage interest relief
• The additional 3% Stamp Duty surcharge on second homes and buy-to-lets
The extra 2% income tax will:
• Further squeeze net returns for many landlords
• Likely push some towards selling up, especially those with highly leveraged portfolios
• Potentially lead to higher rents over time, as landlords try to pass on some of the increased costs to tenants
For tenants, this is unlikely to be good news. A smaller pool of rental stock and higher landlord costs generally mean reduced choice and upward pressure on rents.
WHAT DOES ALL THIS MEAN IF YOU’RE…
…a homeowner in a £2m+ property?
You’ll need to factor in a new annual cost from April 2028 and consider whether to:
• Adjust your long-term ownership plans
• Seek a professional valuation closer to implementation
• Take advice on potential mitigation or restructuring
…a buyer at or near the £2m mark?
You may see:
• Increased caution among sellers and buyers
• More negotiation around price to offset the annual tax
• A clearer premium placed on truly exceptional properties that justify the extra cost
…a landlord?
Expect:
• A further hit to net income from the additional 2% tax on rental profits
• More importance placed on portfolio efficiency, void management, and financing costs
• A need to review whether each property still earns its place in your portfolio
…a typical buyer, seller or mover below the £2m threshold?
The tax may not touch you directly, but:
• A slower, more cautious top end can feed back into the overall pace and confidence of the market
• Lending appetite, chain length, and transaction times can all be affected by overall activity levels
FINAL THOUGHTS
While the new mansion tax is aimed squarely at high-value homes, housing markets are interconnected. Taxes that appear targeted at a narrow band often create wider turbulence – particularly in regions like London and the South East, where £2m+ homes play a key role in local chains and pricing.
Combined with the additional 2% tax on rental income, this Budget continues the trend of using property as a tax base, rather than as a sector to be actively stimulated.
If you’re a homeowner, landlord, or planning a move in the next few years, it’s worth:
• Reviewing your position early
• Running the numbers on your ongoing costs and returns
• Getting tailored advice from your tax adviser and property professional
Because while less than 0.5% of sales may sit above the £2m mark, the effects of policy changes at the top rarely stay there.