Buying at auction is a rite of passage for many Australian property buyers — particularly in Sydney and Melbourne where auction culture is deeply embedded. Unlike private treaty sales, auction purchases are unconditional — there is no cooling off period, no finance clause, and no building and pest inspection clause. This means your preparation must be completed before auction day.
Auction Rules and Cooling Off Rights by State
In NSW and Victoria, there is no cooling off period for properties purchased at auction. The fall of the hammer creates a binding, unconditional contract. You must pay the deposit (typically 10%) on auction day and settle within the timeframe specified in the contract (usually 42 days in NSW, 30–90 days in Victoria).
For properties purchased before auction (prior to auction day), cooling off rights may apply depending on the state — but the vendor will often only agree to a pre-auction sale if the buyer waives cooling off rights (via a Section 66W certificate in NSW).
In Queensland, auctions operate slightly differently — a cooling off period of 5 business days applies if the property is purchased before auction or if the auction is conducted under specific conditions. However, most auction contracts in Queensland also waive cooling off rights.
The critical point: if you buy at auction, you are committed. If your finance falls through after auction, you lose your deposit (10% of the purchase price) and may face legal action from the vendor for the shortfall.
No Finance Clause at Auction
Unlike private treaty purchases, auction contracts do not include a finance clause. If your loan is not approved after you purchase at auction, you are personally liable for the deposit (10%) and potentially additional damages. Unconditional pre-approval is strongly recommended before bidding.
Finance Preparation: What You Need Before Auction Day
Your finance preparation should include: unconditional (or as close to unconditional as possible) pre-approval from your lender, a solicitor or conveyancer who has reviewed the contract of sale and Section 32 (in Victoria), completion of building and pest inspections, and a strata report (for units and townhouses).
Conditional pre-approval (the standard type) confirms the lender is prepared to lend to you based on your income, expenses, and credit history — but is subject to a satisfactory valuation of the property. For auction purchases, some lenders offer 'valuation upfront' pre-approval, where the property is valued before auction day, giving you greater certainty.
Discuss your auction plans with your broker early. They can recommend lenders with the fastest turnaround times, arrange upfront valuations where possible, and ensure your pre-approval is as robust as it can be before you bid.
- ✓Unconditional or valuation-confirmed pre-approval
- ✓Contract of sale reviewed by your solicitor/conveyancer
- ✓Section 32 reviewed (Victoria)
- ✓Building and pest inspection completed
- ✓Strata report reviewed (units/townhouses)
- ✓Deposit funds available (10% of estimated purchase price)
- ✓Maximum bid amount agreed with your broker
Bidding Strategies That Experienced Buyers Use
Set your maximum bid before auction day and do not exceed it. This is the single most important discipline. Your maximum should be based on what the property is worth to you (informed by comparable sales research) and what your finance allows — whichever is lower.
Start with a strong opening bid to signal serious intent and thin out underprepared competition. Bid in round numbers initially ($10,000 or $20,000 increments) but be prepared to switch to smaller increments ($5,000 or $2,000) as bidding approaches the reserve price and your maximum.
If the property is passed in (does not meet the reserve price), the highest bidder gets first right of negotiation with the vendor. This can be a strong position — you are negotiating one-on-one, and the vendor knows the market has spoken. Be prepared with a clear offer and a short deadline to create urgency.
Consider having your broker or a buyer's advocate attend the auction with you. They can provide real-time advice, help you stay disciplined, and manage the emotional intensity of the auction environment.
Attend Auctions Before You Buy
Before bidding on a property you want, attend 5–10 auctions as an observer. This helps you understand the process, read the auctioneer's tactics, observe bidding patterns, and manage the adrenaline that comes with competitive bidding.
Frequently Asked Questions
About the Author
Sakib Manzoor
Senior Finance Wellness Expert
Sakib Manzoor is the founder of Secure Finance and brings extensive experience in Australian mortgage broking and financial wellness. Specialising in helping clients achieve their property finance goals through personalised strategies and expert guidance, Sakib is FBAA accredited and committed to providing clear, actionable advice. All content is written to meet Australian regulatory standards and is regularly updated to reflect current market conditions.