KEY TAKEAWAYS
- Rule 1: Bids are cash and unconditional. There is no subject to finance or subject to sale, so get your finance approved before auction day.
- Rule 2: Complete all inspections before bidding. Building and pest reports must be done in advance, because you cannot cancel after the hammer falls.
- Rule 3: Have your deposit ready on the spot. It is due immediately when you win, so raise your banking transfer limits beforehand.
- Rule 4: Bidding signals are simple. Raise your hand, call out a figure or give a clear nod.
- Rule 5: ‘On the market’ means the reserve is met. From that moment, the highest bid wins when the hammer falls.
- Rule 6: The reserve stays confidential. Don’t wait for an announcement — keep bidding until the third call.
- Rule 7: The highest bidder at a passed-in auction negotiates first. You are told the reserve price and can negotiate at that figure.
Standing on a crowded Perth driveway while an energetic auctioneer calls for opening bids is enough to send anyone’s heart rate soaring. While auctions have long been standard practice in Sydney and Melbourne, Perth buyers now see them far more frequently across suburbs like South Perth, Como and Victoria Park. Competing directly against rival buyers creates genuine excitement, but stepping into an auction without knowing the ground rules is risky.
Before raising your hand or nodding at the auctioneer, understand that auction contracts operate under completely different rules from a standard private treaty sale. Western Australia has no mandatory cooling-off period for real estate, and an auction contract is binding the moment it is signed. There are no subject-to-finance clauses and no second chances once the hammer falls. Here are the seven rules that matter most on the day.
1. Auction Bids in WA Are Cash and Unconditional
In a standard private treaty purchase, your offer usually includes protective clauses for bank finance, building inspections and timber pest reports. When you bid at a Western Australian auction, those safety nets vanish completely. Consumer Protection WA states plainly that at auction you cannot make your offer subject to any conditions, including pre-finance approval.
An auction bid is a legally binding commitment to buy on an unconditional cash basis. If your bid wins, you cannot withdraw because your mortgage application fell through or your existing home failed to sell.
Get Your Finance Formally Approved First
Ensure your finance is formally approved well before auction morning, not merely pre-assessed over the phone. Our guide to improving your property offer explains how pre-approval works, what conditions normally attach to it and how long it takes — worth reading before you commit to bidding, because at auction that approval needs to be solid.
2. Complete All Inspections Prior to Bidding
Because auction contracts are unconditional, all due diligence has to happen long before you arrive. Buyers forfeit the right to request repairs or cancel the sale once the auction concludes, so a defect discovered afterwards is simply yours.
If you want a structural engineer or pest inspector to examine the roof cavity and subfloor, arrange and pay for those reports beforehand. Discovering severe termite damage or plumbing defects after the gavel falls will not excuse you from completing settlement. Paying for reports on a property you might not win feels frustrating, but it is far cheaper than inheriting a major repair bill.
3. Have Your Deposit Ready on the Spot
Winning the auction means signing the contract and paying a deposit immediately after the final call. Consumer Protection WA advises that the deposit is about 10% of the purchase price, payable at the close of the auction, with the balance due at settlement — usually around 30 days later. Some contracts allow for a figure between 5% and 10%, so confirm the exact amount with the selling agent before the day rather than assuming.
Confirm Payment Methods and Raise Your Limits
Before stepping into the crowd, confirm accepted payment methods with the selling agent. Most agencies accept electronic transfers or bank cheques, but you must ensure your daily online banking transfer limits are raised in advance — limits are a common and entirely avoidable reason a winning bidder cannot pay on the day. Failing to pay the deposit immediately after winning places you in default of the auction terms.
4. Bidding Signals at a WA Auction Are Simple
First-time attendees often worry that scratching their nose or waving to a friend will accidentally commit them to a major purchase. In reality, auctioneers look for clear, deliberate signals: raising your hand, calling out a figure, or giving a clear nod when the auctioneer makes eye contact.
If you feel nervous about managing your emotions during bidding, you can authorise a trusted buyer’s agent or friend to bid on your behalf using formal written authority. Arrange this with the selling agent well before auction day so the paperwork is in place and registered.
5. Understanding ‘On the Market’
Every auction features a confidential reserve price, set privately between the owner and auctioneer before the event. This figure represents the minimum the seller will accept. Once bidding reaches or passes the reserve, the auctioneer declares the property officially “on the market”, and from that second the highest bid wins when the hammer falls.
6. Reserve Prices Stay Confidential
Do not expect the auctioneer to disclose the reserve before bidding starts. It remains private between owner and auctioneer, and not every auctioneer explicitly announces when it has been reached. To avoid missing out while waiting for an announcement that may never come, stay active in the bidding momentum. Once the auctioneer reaches the third call and prepares for the final strike, any unplaced bid is lost for good.
7. Highest Bidders Earn Exclusive Negotiation Rights
If bidding stops before reaching the reserve, the property passes in. Stopping short of the reserve does not mean you have lost your chance, though — under WA auction practice the highest bidder at a passed-in auction is told the reserve price and earns the exclusive first right to negotiate directly with the seller at that figure.
That position is a genuine tactical advantage over every other buyer in the room who hesitated to bid, which is why placing a bid matters even when you suspect the reserve is out of reach.
Raise Your Hand with Confidence
Walking into an auction with a solid game plan takes the panic out of the experience. At Bourkes we run auction campaigns with licensed auctioneers who know the nuances of Western Australian property auctions, and we would far rather talk a buyer through the rules beforehand than watch them learn them on the day.
If you are preparing to bid on a home or considering putting your own property under the hammer, you can see which Bourkes properties are going to auction in Perth, or ask us to walk you through an upcoming auction before you register to bid.
Frequently Asked Questions About Buying at Auction in WA
Can you make a conditional offer at auction in WA?
No. Consumer Protection WA confirms that at auction you cannot make your offer subject to any conditions, including pre-finance approval. You cannot make a bid subject to finance, the sale of your current home, or building and pest reports, so complete all due diligence beforehand.
How much deposit do you need at a WA auction?
About 10% of the purchase price, payable at the close of the auction when you sign the contract. Some contracts allow for a figure between 5% and 10%, so confirm the exact amount and the accepted payment methods with the selling agent before auction day. The balance is due at settlement, usually around 30 days later.
What happens if a property is passed in?
If bidding does not reach the seller’s reserve, the property is passed in. The highest bidder is told the reserve price and gets the first opportunity to negotiate with the seller at that figure, which is a real advantage over other buyers in the room.
What does “on the market” mean at auction?
It means bidding has reached the seller’s confidential reserve price. From that point the highest bid wins the property when the hammer falls. Not every auctioneer announces it, so keep bidding rather than waiting for the declaration.
Is there a cooling-off period for auctions in WA?
No. Western Australia has no mandatory cooling-off period for real estate contracts, and an auction contract is unconditional and binding once signed. This is precisely why inspections, finance and legal review all need to be completed before you bid.
Can someone else bid for me?
Often yes. You can authorise a trusted buyer’s agent or friend to bid on your behalf using formal written authority. Arrange this with the selling agent well before auction day so the paperwork is registered and there is no dispute on the day.
Disclaimer: Advice and auction guidelines in this article are provided for general educational purposes and reflect Western Australian real estate laws current at the time of publication (2026). Auction rules, deposit requirements and contract terms can vary, so prospective buyers should seek tailored legal and financial advice before bidding on real estate.
