Home › News › Why House Sales Fall Through in the UK in 2026
House sales fall through more often than most people expect. In the first quarter of 2026, about 23.7% of UK property sales collapsed before completion, according to estimates from TwentyCi reported by Property Industry Eye. The usual causes are problems found in the survey, a buyer changing their mind, and trouble with mortgages or the chain. As of October 2026, the most recent estimates cover the second quarter of 2026.
If your sale has fallen through, or you are worried it might, this guide explains what the figures mean, why it happens and what to do next.
What is a fall-through?
A fall-through happens when a sale collapses after a price has been agreed but before it completes. The deal can stop because one side pulls out, or because a survey, a mortgage or a chain problem makes it impossible to carry on.
Because a collapse can come so late in the process, it can be very disruptive, especially if you have already made plans around the sale.
How common are fall-throughs now?
The figures below come from estimates by TwentyCi, which are published by property industry outlets and by some commercial firms. They are useful for trends, but they are not official government statistics.
- Q1 2026: The national fall-through rate was 23.7%, down from 24% a year earlier. Absolute numbers fell by 12.1%, from 76,814 to 67,489.
- Q2 2026: TwentyCi’s estimate was about 71,959 collapsed transactions, which is 8.7% lower than the same quarter of 2025 but 6.6% higher than Q1 2026.
Some headlines describe this as “more than one in four”. The Q1 rate was 23.7%, so the more precise figure is close to one in four.
Where are fall-throughs highest?
The picture varies across the country. Ten of the 13 regions in the Q1 data saw fall-through rates fall. Northern Ireland had the biggest improvement, followed by Scotland and Wales.
Inner London bucked the trend. Its rate rose from 24.6% to 27%. The report links this to the proposed mansion tax, which it says was understood to have weighed on buyer confidence. It does not measure that effect, so treat it as one possible factor rather than proof.
When do fall-throughs usually happen?
Timing matters, because the risk is not spread evenly. According to the same Property Industry Eye report:
- about 38% of fall-throughs happen within the first four weeks after a sale is agreed
- just under 16% happen in the first two weeks alone
- the weekly rate falls below 3% after around 12 weeks
The first few weeks are the most fragile period. Sellers and buyers should be most careful about surveys, mortgage offers and the timing of the other sales in the chain at that stage.
What causes fall-throughs?
The reasons are rarely a single problem. Based on a breakdown of Q1 2026 cases published by a company that buys houses, the most common causes were:
- Survey problems, where the survey finds defects, damp, structural issues or a valuation that is lower than the price agreed
- The buyer changing their mind, often after a survey or when costs become clearer
- Mortgage and chain issues, where a lender withdraws or reduces an offer, or a linked sale in the chain collapses
- Legal delays in the conveyancing process
This is a commercial source, and its percentages are not from an official dataset, so use the list as a guide to common patterns rather than precise shares. Coverage of the Q2 figures also points to affordability pressures and wider economic uncertainty as factors.
What does it cost?
TwentyCi’s estimate for the cost of fall-throughs was about £257.9 million in Q2 2026, up from £239.7 million in Q1. The average cost per fall-through was about £3,584. These are estimates, and the cost to any individual depends on their situation, including survey fees, removal bookings, legal fees and any money lost on a new property.
What to do if your sale falls through
If your sale collapses, the steps below can help you protect your position.
- Ask the estate agent or the other party for the reason in writing. Knowing the cause tells you whether the problem can be fixed.
- Check what you have already paid for. This can include survey fees, searches and legal fees. Some costs may be recoverable, depending on your agreement.
- Look at the survey. If it raised issues, consider whether a price reduction, repairs or a second opinion could help.
- Talk to your solicitor or conveyancer. They can explain what you can do, including whether it is worth trying to restart the sale.
- Review your position. If you need to sell quickly, compare the open-market options with other routes, and make sure you understand fees and timescales before you commit.
- Get advice if money is tight. A free debt adviser can help if a fall-through puts your finances under pressure.
Who is most affected?
Fall-throughs can affect anyone, but they hit some people harder. Sellers who have already bought another property, or who are relying on the money to pay off debt, face the most risk. Buyers who need a mortgage in a chain can also be left with costs and delays. Anyone who is selling in a hurry should plan for a fall-through, not just hope it will not happen.
Key points
- In Q1 2026, about 23.7% of UK property sales fell through, according to TwentyCi estimates.
- Q2 2026 saw about 72,000 collapsed sales, up on Q1 but down on the same quarter a year earlier.
- Most fall-throughs happen in the first few weeks after a sale is agreed.
- Common causes include survey problems, buyers changing their mind, and mortgage or chain issues.
- If your sale falls through, ask for the reason in writing and speak to your solicitor quickly.
Frequently asked questions
How often do house sales fall through in the UK? Recent estimates put the Q1 2026 rate at 23.7%, roughly one in four sales. Rates vary by region, with Inner London higher than the national average in Q1.
What is the most common reason a sale falls through? Survey problems and buyers changing their mind are often cited as the main causes. Mortgage and chain problems also play a big part.
Can I get my money back if a sale falls through? It depends on what you have paid and on your agreement with the other party and your agents. Ask your solicitor which costs you may be able to recover.
Is it worth trying to save a fall-through sale? Sometimes. If the reason is a survey issue or a price change, a renegotiation can work. If the buyer has lost confidence, it may be better to move on quickly.
When is the risk highest? In the first few weeks after a sale is agreed. The data suggests the weekly risk falls after around 12 weeks.
Do I need a solicitor if my sale falls through? Yes, it is sensible to speak to your conveyancer. They can check your contract, your fees and your options.
This article is general information, not legal or financial advice. For your own situation, speak to a qualified solicitor or conveyancer, and a debt adviser if money is tight.