In Australia, buying property at auction is fundamentally different from buying via private treaty (the standard offer-and-acceptance process). When the auctioneer's hammer falls and you are the highest bidder, you are contractually committed — there is no cooling-off period, no finance clause, no building and pest clause, and no opportunity to withdraw. You must sign the contract and pay the deposit (typically 10%) on the spot. If your finance is subsequently declined, you can lose your deposit and potentially face legal action from the vendor. This guide ensures you are financially prepared before raising your hand.
Why Is Buying at Auction Different from Private Treaty?
Private treaty purchases allow you to include conditions in your offer — most commonly a 'subject to finance' clause (giving you 14–21 days to obtain formal loan approval) and a 'subject to building and pest inspection' clause. If your finance is declined, you can withdraw from the contract without penalty.
At auction, there are no conditions. The contract is unconditional from the moment the hammer falls. This means:
No finance clause: You cannot make the purchase conditional on your loan being approved. If your lender declines the loan after auction, you are still obligated to complete the purchase.
No cooling-off period: In most states, the standard cooling-off period (2–5 business days for private treaty) does not apply to auction purchases. You cannot change your mind.
Immediate deposit: You must pay a deposit (typically 10% of the purchase price, or as specified by the vendor) at the time of sale — usually by personal cheque, bank cheque, or electronic transfer. Some auction agents accept a reduced deposit (e.g., 5%) by prior arrangement with the vendor.
Fixed settlement date: The settlement period is set in the contract (typically 30–90 days) and cannot be extended without the vendor's agreement.
This means your finance must be as close to guaranteed as possible before auction day. Pre-approval alone does not guarantee that formal approval will follow — but it significantly reduces the risk.
Pre-Approval Is Not Formal Approval
Pre-approval (also called conditional approval or approval in principle) means the lender has assessed your income, expenses, and credit history — but has not yet valued the specific property. Formal approval only occurs after the lender values the property and confirms all conditions are met. A pre-approval can still be declined if the property valuation comes in low, if your circumstances change, or if the lender's policies change.
How to Prepare Your Finance Before Auction Day
Step 1 — Obtain pre-approval: Apply for pre-approval (conditional approval) well before auction day — ideally 4–6 weeks prior. Provide all required documents: payslips, tax returns, bank statements, identification, and details of existing debts. A strong pre-approval means the lender has verified your income and borrowing capacity — the only remaining step is the property valuation.
Step 2 — Get the property independently valued: While you cannot obtain a formal lender valuation before auction (the lender orders this after you apply for formal approval), you can commission your own independent valuation or request a free market appraisal from a local agent. If the property's value aligns with your intended bid range, you can be more confident that the lender's valuation will support the loan.
Step 3 — Complete building and pest inspection before auction: Since you cannot include a building and pest clause at auction, arrange inspections before the auction date. The cost ($400–$700) is worthwhile — it reveals any structural issues, pest damage, or defects that could affect the property's value or your willingness to purchase.
Step 4 — Have your conveyancer review the contract: The contract of sale is available for inspection before auction. Have your conveyancer or solicitor review it for any unusual conditions, easements, encumbrances, or terms that could affect the purchase or your finance.
Step 5 — Set a firm maximum bid: Based on your pre-approved borrowing capacity, available deposit, and the estimated property value, set an absolute maximum bid that you will not exceed. Factor in stamp duty, conveyancing fees, building and pest costs, and a buffer for unexpected expenses. Do not get caught up in auction-day emotions and bid beyond your financial capacity.
Step 6 — Prepare your deposit: Confirm how the deposit will be paid — personal cheque, bank cheque, deposit bond, or electronic transfer. Different auction agents accept different methods. A deposit bond (purchased from a provider for a small fee) allows you to provide a guarantee instead of cash — the actual deposit is paid at settlement.
- ✓Obtain pre-approval 4–6 weeks before auction day
- ✓Commission an independent valuation or market appraisal
- ✓Complete building and pest inspection before auction
- ✓Have your conveyancer review the contract of sale
- ✓Set a firm maximum bid — do not exceed it on the day
- ✓Prepare your deposit method (cheque, bank cheque, deposit bond)
- ✓Confirm your pre-approval amount covers the expected price range
- ✓Discuss the specific property with your broker before bidding
What Happens If Your Finance Is Declined After Winning at Auction?
This is the nightmare scenario — and it does happen. If you win at auction and your formal loan application is subsequently declined (typically because the valuation is lower than expected, or a previously undisclosed issue emerges), the consequences are serious:
You lose your deposit: The vendor is entitled to keep your deposit (typically 10% of the purchase price — potentially $70,000–$100,000 or more) as compensation for taking the property off the market.
The vendor can sue for damages: If the vendor resells the property for less than your contracted price, they can sue you for the difference — plus their additional costs (re-listing fees, additional holding costs, legal fees).
Your credit history may be affected: A failed property purchase does not directly affect your credit score, but the financial stress and potential legal proceedings can have flow-on effects.
What to do if this happens: Contact your broker immediately. Options include: approaching a different lender who may value the property more favourably, applying with a non-bank or specialist lender with different assessment criteria, negotiating with the vendor for an extension of the settlement period, or (as a last resort) negotiating a mutual release from the contract — though the vendor is under no obligation to agree.
Prevention is better than cure: The best protection against this scenario is thorough preparation — strong pre-approval, an independent valuation before bidding, and a conservative maximum bid that sits comfortably within your approved borrowing capacity.
Consider a Deposit Bond for Extra Protection
A deposit bond (costing $200–$1,500 depending on the amount and term) provides the vendor with a guarantee from an insurance company instead of requiring you to hand over cash at auction. While this does not protect you from the legal obligation to complete the purchase, it means your cash is not immediately at risk if complications arise with your finance.
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.