Gazumping explained: what it is and how to protect your offer

Gazumping is when a seller accepts a higher offer from another buyer after they have already verbally agreed to sell to you, but before the sale becomes legally binding. You can be gazumped right up until contracts are exchanged and you have a signed contract of sale, because until that moment a verbal agreement is not enforceable. It is a stressful experience, and it usually happens in a hot market where more than one buyer is chasing the same property.

This guide covers what gazumping means in plain terms, when it can happen, why it is allowed, and the practical steps that may reduce your risk. The aim is to help you move quickly and confidently when you find the right home, so you give yourself the best chance of getting to a signed contract before anyone else can step in.

What is gazumping?

The simplest gazumping meaning is this: a seller agrees to sell to you at a certain price, then accepts a better offer from someone else before the deal is locked in. You may have had your offer accepted on the phone, shaken hands at the property, or even paid a holding deposit, and still lose the home because the agreement was not yet binding.

Gazumping is most common in private treaty sales, where a property is listed at a price or price guide and buyers negotiate with the agent. In a private sale, the agent has a duty to pass on offers to the seller, so a later, higher offer can still be considered even after yours was verbally accepted. It does not happen at auction in the same way, because the winning bid at auction creates a binding sale on the spot.

When can you be gazumped?

You are exposed to gazumping in the window between a verbal agreement and the exchange of signed contracts. The two main ways to buy explain why that window exists.

When you buy at auction, there is no cooling-off period, the sale is final, and it is not subject to finance or a building or pest inspection. You can expect to pay the deposit immediately, for example 10% of the purchase price. Because the sale binds the moment the hammer falls, there is no gap for another buyer to slip in with a higher offer.

When you buy by private treaty, there is usually a cooling-off period in most states and territories, and you can usually get out of the contract and get most of your deposit back if you give written notice. The flip side is that the agreement is not binding until contracts are exchanged, and that is the gap where gazumping can occur. The deposit amount and timing are set out in the contract of sale.

Why is gazumping allowed?

It can feel unfair, especially if you have already paid for a building and pest inspection or legal review. The faster you can move from a verbal yes to a signed contract, the smaller the window for another buyer to outbid you. Speed and preparation are your main protections.

How to reduce your risk of being gazumped

You cannot remove the risk entirely, but you can make yourself the buyer who is ready to exchange first. The steps below all work towards the same goal: being able to sign quickly and credibly.

Get your finance ready first

Pre-approval lasts for 3 to 6 months and shows you are eligible to apply for a loan up to a certain amount. Having pre-approval in place means you are not scrambling for finance while another buyer moves ahead of you, and it gives the seller confidence that your offer is real. Working out your borrowing power early also helps you set a firm maximum price so you can act fast without overstretching.

A useful savings target is a deposit of 20% of the purchase price, plus enough to cover buying costs, which means you can avoid paying lenders mortgage insurance (LMI). A smaller deposit may still work depending on your circumstances and lender criteria, and first home buyers may be able to access the Australian Government 5% Deposit Scheme in qualifying situations. Knowing your numbers in advance is part of being ready to exchange quickly.

If you want a quick sense of your price range before you start offering, you can run the figures yourself.

Auction versus private treaty: where gazumping fits

Understanding how the two sale methods differ helps you see where the gazumping risk sits and how to plan around it.

The trade-off is real. A private treaty gives you more flexibility and a cooling-off period, but it carries the gazumping risk. An auction removes the gazumping risk but also removes your conditions and cooling-off protection, so you need to do your checks before you bid.

What happens after your offer is accepted

Once your offer is accepted and you move towards a signed contract, the path to owning the home becomes clearer. Settlement is the date the property title is transferred into your name and your mortgage begins. After settlement, stamp duty is a one-off state government property-transfer tax, and is usually payable within 30 days of settlement. Getting to a signed contract is the moment the gazumping risk falls away, which is why speed up to that point matters so much.

Frequently asked questions

Talk it through before you offer

Being gazumped often comes down to not being ready to exchange fast enough. Getting your finance sorted early is the part you can control. The team at Finance Lab can help you get pre-approval in place and understand your borrowing power, so you can act quickly and confidently when you find the right home.

To keep building your knowledge, read more from The Lab: