Buyer’s guide  ·  NSW

Gazumping in NSW: what it is and how to protect yourself

Gazumping in NSW happens when a seller accepts your offer, then sells to someone else before exchange. Learn your rights and how to protect yourself.

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You make an offer on a home in NSW. The agent tells you it has been accepted. Then, before you exchange contracts, the property is sold to someone else for more. This is called gazumping.

Gazumping in NSW is legal, and it happens more often in a hot market. The good news is that there are practical steps you can take to reduce the risk.

This guide explains why gazumping happens, what you can (and cannot) recover, and how to protect yourself.

Key takeaways

  • Gazumping is when a seller accepts your offer but then sells to someone else (usually for a higher price) before contracts are exchanged.
  • In NSW, a sale is generally not legally binding until contracts are exchanged. Until then, either side can walk away.
  • Agents must pass on all offers to the seller until exchange, unless the seller has instructed otherwise in writing.
  • If you are gazumped, you generally cannot recover costs such as legal fees, inspection reports or finance application fees.
  • Any expression of interest deposit must be refunded in full if the property is sold to someone else.
  • The best protection is to be ready to exchange quickly.

In NSW, a property sale becomes legally binding only when contracts are exchanged. Exchange means the buyer and seller each sign a copy of the contract and the copies are swapped (usually by the agent or the lawyers). The buyer usually pays a deposit at the same time.

Before exchange, an accepted offer is just an agreement in principle. It is not binding on you or the seller.

Until exchange, the agent must tell the seller about every offer they receive, unless the seller has given written instructions otherwise. So if a higher offer comes in, the seller can accept it, and the first buyer is “gazumped”. See the NSW Government guidance on making an offer.


It is frustrating, but your legal options are limited:


You cannot rule out gazumping completely. But these steps reduce the risk:

For more tips, read our guides on how to make an offer for a property and the cooling-off period in NSW.


Sellers are not obliged to sell to the highest bidder, and they can change their minds at any time before exchange. A seller may choose a lower offer because the buyer is ready to exchange sooner or offers better terms, such as a shorter settlement.

That is why being organised and “exchange ready” can be as persuasive as a higher price.


No. At a NSW auction, the sale is binding when the hammer falls, and the winning bidder signs the contract on the spot. There is no cooling-off period for auction purchases, so you need your inspections and contract review done before auction day.

Read our auction buyer guide for more.


Is gazumping illegal in NSW?

No. Because a sale is not binding until exchange, a seller can accept a higher offer. But agents must follow conduct rules, including passing on all offers and not misleading buyers.

Can I get my costs back if I am gazumped?

Generally, no. The seller and agent do not have to compensate you for legal, inspection or finance costs. An expression of interest deposit must be refunded in full.

What is the best way to avoid gazumping?

Have your finance and lawyer ready before you make an offer, and aim to exchange contracts as soon as possible after your offer is accepted.

What is gazundering?

It is the reverse of gazumping: a buyer lowers their offer just before exchange, hoping the seller will accept rather than lose the sale.

Need help buying property in NSW?

Talk to our property team

Property & Conveyancing

Our team can review your contract quickly so you are ready to exchange and reduce the risk of being gazumped. Find out more about our property buying and conveyancing services.

This article is general information only and is not legal advice. It reflects NSW law at the date of publication. Please contact us for advice about your circumstances.