Autumn Budget 2026: what property buyers, sellers and mortgage borrowers should watch
The Autumn Budget will take place on 28 October, and property is likely to be one of the areas attracting particularly close attention. Higher government borrowing costs have reduced the Chancellor’s room for manoeuvre, while speculation continues around taxation, support for first time buyers and the treatment of higher value homes. Reuters’ latest Budget overview is here: https://www.reuters.com/legal/transactional/options-uk-finance-minister-healey-october-28-budget-2026-10-07/
Not everything being discussed will appear in the Budget. Some measures are already confirmed, some have been explicitly ruled out, and others remain possibilities reported in the press. For buyers, sellers, landlords and mortgage borrowers, separating those categories is more useful than trying to predict every announcement.
Stamp duty: major reform has been ruled out
Stamp Duty Land Tax frequently becomes the subject of speculation before a Budget because changes can have an immediate effect on transaction costs and buyer behaviour.
However, Prime Minister Andy Burnham explicitly ruled out changing or abolishing stamp duty at the forthcoming Budget in July. Unless that position changes, buyers in England and Northern Ireland should therefore plan on the basis of the existing system rather than delaying a transaction in anticipation of a stamp duty overhaul. Reuters reported the announcement here: https://www.reuters.com/world/uk/uk-pm-burnham-rules-out-changes-stamp-duty-next-budget-2026-07-27/
That does not mean property taxation will remain untouched. It simply removes one of the largest potential changes from the current Budget discussion.
High value homes could face further changes
One area still attracting attention is the High Value Council Tax Surcharge.
The existing policy is designed to impose an additional annual charge on higher value homes in England from April 2028. The current threshold is £2 million, but Reuters reported on 7 October that lowering it to £1.5 million is among the options being considered ahead of the Budget. Such a change could significantly increase the number of properties brought within the scope of the surcharge.
This remains a reported option rather than confirmed policy. Buyers of higher value properties should therefore be aware of the discussion, particularly when considering the longer term running costs of a property, but should not assume that a lower threshold will definitely be announced.
What about Capital Gains Tax?
Capital Gains Tax has also featured in the wider pre Budget debate. This is most relevant to investors, landlords and owners selling second homes or other property where gains may be taxable, rather than most people selling their main residence.
Recent discussion has included the possibility of further changes to CGT rates or bringing them more closely into line with income tax rates. However, no such measure has been confirmed. The range of tax options being discussed ahead of the Budget was examined here: https://www.thetimes.com/uk/politics/article/andy-burnham-refuses-rule-out-tax-rises-what-levers-could-he-pull-chrk3dkzm
For landlords considering selling a property, the distinction between speculation and policy matters. A decision involving a significant taxable gain should generally be based on the rules that actually apply and appropriate tax advice, rather than an assumption about what the Chancellor might announce.
A new first time buyer scheme is already coming
One major housing announcement is not speculation.
The government has confirmed that its new Your First Home scheme will be formally set out at the Budget. The proposed scheme is expected to allow eligible first time buyers purchasing qualifying new build properties in England to use a deposit of 2.5%, supported by a government backed equity loan of up to 20%.
The government has said there will be household income limits and local property price caps, with further details, costs and implementation dates to be announced on 28 October. Developers taking part will also be expected to contribute to the scheme. The official announcement is here: https://www.gov.uk/government/news/new-first-time-buyer-scheme-to-be-confirmed-at-budget
For prospective first time buyers, this is therefore one section of the Budget worth watching particularly closely. Eligibility details could determine whether the scheme is relevant to an individual purchase.
Why the Budget could affect mortgages even without a mortgage announcement
Borrowers should also pay attention to the wider economic reaction to the Budget.
Mortgage rates do not only respond to Bank Rate. Fixed mortgage pricing is influenced by swap rates, which in turn can move when investors reassess inflation, government borrowing and future interest rates.
That means the Budget could influence mortgage pricing indirectly even if the Chancellor announces nothing specifically about mortgages. The government is currently dealing with higher borrowing costs and reduced fiscal headroom, which makes the market response to its tax and spending plans particularly relevant.
A Budget that changes expectations for government borrowing or inflation could therefore move gilt and swap markets, with lenders potentially adjusting fixed mortgage pricing afterwards. The direction of that reaction cannot be known in advance.
What buyers and sellers should focus on
For most buyers, the Budget should be treated as useful information rather than a reason to put every plan on hold. Stamp duty changes have been ruled out under the government’s current position, while many of the other possible tax measures would affect relatively specific groups of property owners.
First time buyers considering new builds have a clearer reason to watch 28 October because important details of Your First Home are still to come.
Higher value homeowners and buyers should pay attention to any change to the High Value Council Tax Surcharge, while landlords and property investors may want to monitor any Capital Gains Tax announcements.
For everyone with a mortgage, the wider financial market reaction may ultimately prove just as relevant as the property tax headlines.
Practical takeaways
The most useful approach before the Budget is to distinguish between what is confirmed, what has been ruled out and what remains speculation. Your First Home is coming, major stamp duty reform is not currently planned, and possible changes affecting high value homes and Capital Gains Tax remain uncertain.
The Budget may also influence mortgage rates indirectly through bond and swap markets, making it sensible for borrowers approaching a purchase or remortgage to understand their options before 28 October rather than assuming the announcement will automatically produce cheaper borrowing.
Altura Mortgage Finance can help you assess the mortgage options available now and understand how any relevant Budget announcements may affect your plans once the details are known.
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