What Is Gazumping? Is it legal?

Gazumping is when a seller accepts a higher offer from a new buyer after already agreeing to sell the property to you. It is legal in England and Wales, because an accepted offer is not legally binding until contracts are exchanged, so a seller can change their mind at any point before then. In June 2026 the government announced reforms that would make agreements binding earlier and penalise buyers and sellers who pull out without a legitimate reason, but these are proposals, not law, and are not expected to be legislated before the end of this Parliament (around 2029).

What is gazumping?

Gazumping means a seller accepts a higher offer after they have already agreed to sell to someone else. The first buyer has been “gazumped”: their accepted offer is dropped, and they usually lose the money they have spent on surveys, legal work and mortgage fees.

The definition of gazumping is simple, but the term is often used loosely. A property sale in England and Wales is only secure once both sides exchange contracts. Until then, the accepted offer is an agreement in principle that either party can walk away from.

The word is thought to come from the Yiddish “gezumph”, meaning to cheat or overcharge. “Gazumped” is simply the past tense: if a buyer says they were gazumped, a seller took another offer after accepting theirs.

Why does gazumping happen?

Gazumping happens because nothing legally stops a seller from accepting a better offer before exchange. The most common triggers are:

• A higher offer. Another buyer bids above the agreed price, which is most likely in a fast-moving market with strong competition.
• A more reliable buyer. A new buyer who is a cash buyer, a first-time buyer or chain free can look quicker and safer to the seller, even at the same price.
• Slow progress. Delays with your mortgage, survey or legal work give a rival time to step in.
• Seller doubts. The seller gets cold feet about your offer or timeline.

The window of risk is long. Government figures cited by the HomeOwners Alliance put the average time from offer accepted to completion at 120 days, and around one in three sales fall through before completing for all reasons, not only gazumping.

Is gazumping illegal?

No. Gazumping is not illegal in England and Wales, although it is widely considered unethical. Until contracts are exchanged there is no legally binding agreement between buyer and seller, so the seller is free to accept any offer, and the original buyer has no legal comeback for the costs they have already paid.

Estate agents are generally required to pass every further offer on to the seller, even after one has been accepted. That means an agent cannot refuse to relay a higher bid, although some agents have a policy of taking the property off the market once an offer is accepted.

Gazumping becomes impossible only once exchange has happened, because the sale is then legally binding on both sides.

Is gazumping possible in Scotland?

Gazumping is technically possible in Scotland but very rare. The Scottish system makes offers legally binding much earlier: once the buyer’s and seller’s solicitors have concluded their exchange of letters, known as missives, a party who withdraws is liable for the other side’s financial losses.

That is why most gazumping stories come from England and Wales. The 2026 reforms discussed below are aimed at bringing a similar level of early commitment to the English and Welsh system.

What happens if you are gazumped?

If you are gazumped, you can either raise your offer to compete or walk away. There is no legal right to compensation from the seller, so what you do next depends on how much you want the property and how much you have already spent.

1. Decide whether to match or beat the new offer. If the new bid is only slightly higher, increasing yours may be worth it. Do not get drawn into an open-ended bidding war, and set a ceiling before you respond.
2. Ask the agent what the seller really wants. If the seller’s reason is speed or certainty rather than price, you may be able to compete by showing you can move quickly.
3. Check what you can recover. You cannot claim your costs back from the seller. Home buyers protection insurance, sometimes called gazumping insurance, can cover conveyancing, mortgage and survey costs if your purchase falls through, but it must be arranged before the sale collapses.
4. Tell your solicitor and lender. If you walk away, they can stop work and limit further costs.

How can you avoid being gazumped?

You cannot remove the risk entirely, but you can reduce it by moving faster and making your offer more attractive. The most effective steps are:

• Get a mortgage in principle (agreement in principle) before you offer. It shows the seller you are financially ready.
• Instruct a solicitor straight away. Have ID and proof of funds ready so the legal work can start as soon as your offer is accepted.
• Book the survey quickly. Every week of delay is another week for a rival to appear.
• Ask for the property to be taken off the market. Make this a condition of your offer and ask whether the agent has an anti-gazumping policy.
• Consider a lock-out agreement. This is a legal agreement in which the seller commits not to consider other offers for an agreed period. Agents note that these can be hard to enforce, so take legal advice before relying on one.
• Keep in regular contact with the agent and seller. Buyers who communicate well are less likely to lose out to a late bid.
• Reduce your chain. A buyer with no property to sell looks safer. Read our guide to what chain free means in property.
• Take out home buyers protection insurance. It does not stop gazumping, but it limits the financial damage.

What is the difference between gazumping and gazundering?

Gazumping is a seller taking a higher offer from someone else, while gazundering is a buyer lowering their offer at the last minute. Both can happen at any point before exchange and both are legal in England and Wales.

Gazumping is more common when prices are rising and demand is high, and gazundering is more common when prices are falling or stalling. The 2026 reforms are designed to tackle both by making agreements binding earlier.

Will the government’s 2026 reforms end gazumping?

The government’s reforms are designed to make gazumping effectively a breach of contract, but they are not law yet. On 19 June 2026 the Ministry of Housing, Communities and Local Government announced a home buying and selling reform roadmap for England and Wales. The key measures are:

• Binding conditional contracts. Both parties would be committed earlier in the process, with potential financial penalties for withdrawing without a legitimate reason. Possible legitimate reasons include serious survey problems, mortgage refusal, a collapsed chain, missing or misleading information, or legal defects, although the government has not yet published a definitive list.
• Sales packs. Sellers would provide key information before listing, including a property condition report, local searches, leasehold terms and chain status, so buyers can make better-informed offers.
• Estate agent standards. A new code of practice and proposals for mandatory qualifications.

The government says the package could cut average buying times by about four weeks and save first-time buyers around £650. However, legislation has not yet been passed and the main reforms are expected by the end of this Parliament, around mid-2029. Until then, the current rules apply and a seller can still accept a higher offer before exchange.

The reforms apply to England and Wales. Scotland already has a different system.

Key takeaways

• Gazumping is when a seller accepts a higher offer after agreeing to sell to you. “Gazumped” means it has happened to you.
• Gazumping is legal in England and Wales because an accepted offer is not binding until contracts are exchanged.
• It is possible but rare in Scotland, where offers become binding earlier through missives.
• You have no legal right to recover costs from the seller if you are gazumped. Home buyers protection insurance can cover some of them if arranged in advance.
• You can reduce the risk by getting a mortgage in principle, instructing a solicitor early, moving quickly on the survey and asking for the property to be taken off the market.
• Gazundering is the buyer-side equivalent: lowering an offer late in the process.
• The June 2026 reforms propose binding conditional contracts with penalties, but they are proposals, not law, and are not expected until around 2029.