Budget Watch: How the Autumn Budget Could Shape Stamp Duty, Taxes & Buyer Behaviour

A Budget in the Balance 

As we head into what may prove to be a pivotal Autumn for the UK housing market, uncertainty rather than clarity appears to be guiding buyer and seller behaviour. With the Autumn Budget 2025 slated for 26 November, speculation is rife about possible reforms to stamp duty, property taxes and other housing-related levies. Many potential movers are pausing decisions, and price growth is showing signs of softening as the market waits on the Chancellor’s next move. 

What’s on the Table? 

Among the most reported proposals are the merger or replacement of stamp duty land tax (SDLT) with either an annual property levy or an expanded tax base for high-value homes. There is also talk of National Insurance being applied to rental income and of tougher capital gains tax for high-value primary residences. While none of these are confirmed, the mere possibility is influencing market behaviour. 

How These Rumours Are Affecting Buyers and Sellers 

Many buyers are adopting a “wait-and-see” approach in the hope of hearing concrete announcements before committing to purchase. For sellers, this means those who list early may face less competition and more motivated buyers. On the other hand, waiting too long might mean missing favourable borrowing conditions or advantageous fixed rates. The combination of tax-rumour fatigue and interest-rate stability has created a window of opportunity for those who move decisively. 

Timing and Strategy: What to Do Now 

If you are thinking of buying, it could be wise to start your preparation now. Secure mortgage agreement-in-principle, review your deposit and affordability, and be ready to act. Sellers should assess whether listing before the Budget gives them a strategic edge, or whether positioning for post-Budget clarity makes more sense. And for those investing or remortgaging, remaining agile may pay dividends. 

With Expertise at Hand 

At Altura Mortgage Finance, we’re keeping a close eye on Budget developments and how they could impact your property plans. Whether you’re a buyer, seller, or investor, we can help you position for success now rather than waiting for the announcement. Get in touch today to discuss your next move or read more of our insights online.