Buying or Selling a Property Before the October 2026 Budget? What You Need to Know

For anyone buying or selling a property, there is often a point where everything feels relatively straightforward. You have found a property, agreed a price and instructed your conveyancer.

Then the Chancellor stands up in Parliament and delivers the Budget.

Within a matter of minutes, the conversation around the property market can change.

Changes to Stamp Duty, taxation, mortgage affordability or measures affecting landlords and second-home owners can all influence decisions about buying and selling. For those already part-way through a transaction, the timing of any changes can be particularly important.

With the next Budget due to take place on Wednesday 28 October 2026, it is worth considering what a Budget announcement could mean if you are thinking about moving, or are already in the middle of a property transaction.

One of the most obvious areas is Stamp Duty Land Tax (SDLT).

SDLT applies to property purchases in England, with different rates and reliefs depending on factors including the purchase price, whether you are a first-time buyer and whether you already own another property.

Previous Budgets have demonstrated how quickly the position can change. In the 2024 Budget, for example, the higher rate of SDLT for additional dwellings was increased from 3% to 5%, with the change taking effect from 31 October 2024.

For someone buying a property, a change like that can have a significant impact on the overall cost of moving.

Budget announcements can therefore lead to increased activity, as buyers and sellers try to understand whether they may be better or worse off depending on when their transaction completes.

However, it is important not to make decisions based on headlines alone.

This is where things can become more complicated.

A property transaction does not usually complete immediately after an offer is accepted. Searches need to be carried out, enquiries raised, a mortgage arranged and a chain coordinated. Contracts then need to be agreed before exchange and completion can take place.

As a result, a buyer could agree a purchase under one set of financial circumstances but find themselves completing after a change in legislation has been announced.

The important point is that an announcement does not necessarily mean that the rules change immediately.

The detail matters, including:

• When does the change take effect?
• Does it apply to transactions that have already started?
• Are there any transitional arrangements?
• Are there exemptions or reliefs?
• Does the change depend on exchange, completion or another date?

These questions can be particularly important for anyone who is already well advanced in their transaction.

If you are concerned that a Budget announcement could affect your purchase or sale, speaking to your conveyancer before changing your plans can help you understand your position.

If you have agreed a purchase or sale but have not yet exchanged contracts, it is important to remember that the transaction may not yet be legally binding.

There can still be a number of steps to complete before exchange, including searches, enquiries, mortgage arrangements and resolving issues identified during the conveyancing process.

If a Budget announcement occurs during this period, the financial implications will depend on the precise nature of any changes and when they take effect.

This is one reason why it is important to keep your conveyancer informed if your circumstances change or if you have concerns about the impact of a Budget announcement.

Once contracts have been exchanged, the position is different.

Exchange normally creates a legally binding commitment to buy or sell the property, subject to the terms of the contract. Completion will then take place on the agreed completion date.

If tax rules change between exchange and completion, the consequences will depend on the particular measure and its effective date.

This is an area where professional advice can be particularly important. A headline suggesting that “Stamp Duty is changing” does not, by itself, tell you whether the change will affect your transaction.

Your conveyancer can consider the specific circumstances and explain what the change means for you.

Budget day can generate plenty of attention in the property market.

You may see headlines such as:

• “Stamp Duty to Rise!”
• “Tax Changes for Landlords”
• “First-Time Buyers to Benefit”
• “Property Market Faces Uncertainty”

But the headline rarely tells the whole story.

The detail of any announcement matters enormously. Who does the change apply to? When does it take effect? Are there exemptions? Are there transitional arrangements?

It is also important to remember that different parts of the UK have different property taxes.

SDLT applies in England and Northern Ireland, while Scotland and Wales have their own land transaction taxes.

If you are buying or selling property, make sure you are looking at information that applies to the jurisdiction in which the property is located.

The Budget is only one factor influencing the property market.

Mortgage rates, lender criteria, house prices, employment, consumer confidence and the wider economy can all affect the cost and affordability of moving.

This means that a property transaction which looks affordable when an offer is accepted can sometimes look different several weeks or months later.

That does not mean buyers and sellers should be put off moving.

It simply reinforces the importance of understanding the full cost of your transaction and allowing some room for the unexpected.

If you are considering moving around Budget time, there are some practical steps you can take:

• Understand the full cost of your transaction, not just the purchase price.
• Check whether SDLT applies and how much you may have to pay.
• If you are relying on a mortgage, understand your borrowing and affordability position.
• Keep in regular contact with your conveyancer, particularly if you are already part-way through a transaction.
• Don't assume a headline change applies to you without checking the detail.
• If you are close to exchange or completion, ask your conveyancer whether any announced changes could affect your particular transaction.

Most importantly, avoid making a major decision about your property transaction based solely on speculation about what might be announced.

The property market does not stand still, and neither does the legislation surrounding it.

A Budget announcement can create uncertainty, particularly for people who are already buying or selling. But understanding the timing and detail of any changes can help put that uncertainty into context.

At Thomas Flavell & Sons Solicitors, we understand that buying or selling a property is about more than paperwork. It is a significant financial and legal commitment, and our role is to help clients understand the conveyancing process and keep their transaction moving.

The next Budget may bring changes that affect property buyers and sellers. Until the Chancellor delivers the detail, however, the best approach is not to speculate but to be prepared, understand your own circumstances and seek professional advice if you are concerned about how any changes could affect your transaction.