Guide
The auction is not the negotiation
By the time the auctioneer starts, most of the decisions that matter have already been made. Australian buyers who treat auction day as the beginning are arriving at the end.
Auction is the default sale method across much of urban Australia, and it is widely misunderstood by the people bidding. The theatre on the day is real, but it is the last ten minutes of a process that started weeks earlier.
What is settled before anyone raises a hand
The contract. An auction contract is prepared by the vendor. What you bid on is that contract, on those terms, with that settlement period. If something in it does not suit you, the time to raise it is during the campaign — your solicitor or conveyancer can request an amendment, and the vendor can agree or decline. Once the hammer falls you are bound to what is in the document.
Your due diligence. Building and pest inspections, the strata report, finance. All of it needs to be done beforehand, because an auction purchase is generally unconditional and in most jurisdictions carries no cooling-off period. A private-treaty purchase often does. This is the single most consequential difference between the two, and it is the one buyers most often discover late.
Your limit. Not a hope, a number — decided when you are calm, written down, and known to whoever is bidding.
What is actually happening on the day
The reserve is the minimum the vendor will accept. It is not published, and it is not necessarily what was quoted during the campaign.
A vendor bid is a bid made on the vendor’s behalf to move the auction toward the reserve. Where it is permitted it must be announced as such. It is not another buyer. Hearing one and reading it as competition is a common and expensive misreading.
Passed in means the property did not reach reserve. The highest bidder usually gets first right to negotiate immediately afterwards — which is why bidding, even into a quiet room, can be worth more than standing silent.
Price quoting during the campaign is regulated, and the rules differ by state. Quoted ranges are a guide and a legal obligation on the agent, not a forecast of the result.
The questions worth asking beforehand
- Has the contract been amended for other bidders, and can I see the amended version?
- What is the settlement period, and is the vendor flexible on it? Terms can matter as much as price.
- Are there any conditions I can negotiate before auction day — and will the vendor consider a prior offer at all?
- What deposit is required, and in what form, immediately on the fall of the hammer?
An agent who answers these plainly is doing the job. Their duty is to the vendor, which is exactly why you should ask precise questions rather than general ones.
Why the method shapes who you should work with
Auction-heavy markets reward agencies that run campaigns well and buyers who prepare like professionals. An agency whose business is predominantly auction is doing different work from one selling by private treaty — different marketing spend, different timelines, different advice.
That is a description of what a business does, not a verdict on how well it does it. Nothing on BrokListed is rated, scored or ranked, and the order of every list here is alphabetical.
What this drew on
State and territory auction and property-sale legislation, and standard agency practice — checked August 19, 2026. Auction rules, price-quoting obligations and cooling-off provisions differ by state and territory. Confirm the position in the relevant jurisdiction.