Buying property at auction in NSW: what to check before you bid
Key facts
| Fact | Detail | Source |
|---|---|---|
| Cooling-off at auction | None, including contracts exchanged on auction day after the property is passed in | Buying property at an auction |
| Registering to bid | Give the agent your name and address and show government or financial-institution ID | Buying property at an auction |
| Bidders record | Confidential, even from the vendor | Buying property at an auction |
| Deposit | Usually 10%, paid when the winning bidder signs, unless a lower amount or deposit bond was agreed before the auction | Buying property at an auction |
| Inspection reports | Not compulsory but recommended; when you ask for the contract, the agent must tell you about any pre-purchase reports it knows of, including who prepared them and whether you can buy a copy | Pre-purchase inspection reports when buying a home |
| Missing prescribed documents | The buyer may rescind by written notice within 14 days after the contract is made, unless it has been completed | Conveyancing (Sale of Land) Regulation 2022 |
| Default settlement date | 42nd day after the contract date under the standard contract, unless agreed otherwise | Contract for the sale and purchase of land 2026 edition (sample) |
Is there a cooling-off period at auction in NSW?
No. There is no cooling-off period when you buy residential property at auction in NSW.
The same applies if the property is passed in and you exchange contracts on the day of the auction. Compare this with a private sale, where a buyer normally has 5 business days to cool off at a cost of 0.25% of the price.
So the contract binds you as soon as it is signed and exchanged after the auction. If you then cannot complete, you risk losing your deposit and may be liable for the vendor's losses.
Sources: Buying property at an auction; Contracts and deposits when buying property in NSW
How do you register to bid at an auction?
You must register with the selling agent before you can bid. You give your name and address and show identification issued by a government or a financial institution.
The agent keeps these details in a bidders record. That record is confidential, even from the vendor.
Ask the agent about its registration process before auction day, and bring your identification with you.
Sources: Buying property at an auction
What happens if you are the highest bidder?
If your bid is the highest and the property is sold to you, you sign the contract and pay the deposit on the spot. The deposit is usually 10% of the price.
If you want to pay a lower deposit or use a deposit bond, agree it with the agent before the auction. Do not assume you can negotiate it after the hammer falls.
The deposit is held by a stakeholder, such as the agent, in a trust or controlled money account. If the property is passed in, a contract exchanged later that day still has no cooling-off period.
Sources: Buying property at an auction; Making an offer on a property
What should you check in the contract before the auction?
Have the contract reviewed before auction day, because you cannot change it or cool off once you win. In NSW the contract must be prepared before the property is offered for sale, and the agent must have a copy available for you to inspect.
Many homes in Hills District suburbs such as Castle Hill and Baulkham Hills go to auction, so ask for the contract early. Check these points:
- Special conditions: these can change the standard terms, for example the deposit, the settlement date or what happens if settlement is delayed.
- Settlement period: under the standard contract, completion is due on the 42nd day after the contract date unless the contract says otherwise. Make sure the date suits your finance and any sale of your current home.
- Deposit: check the amount and whether a lower deposit or a deposit bond will be accepted, and agree it before the auction.
- Prescribed documents: check that the property certificate (title search), the plan and dealings on title, the sewer or drainage diagram (where available) and any required pool certificate are attached.
- Section 10.7 planning certificate: this shows the zoning and constraints such as flooding, bushfire and road widening. For most Baulkham Hills properties it comes from The Hills Shire Council.
- Strata documents: for a strata lot, check the strata plan and the by-laws attached to the contract.
Sources: Sales contracts: requirements for property agents; Contract for the sale and purchase of land 2026 edition (sample); Steps to selling a property; Conveyancing (Sale of Land) Regulation 2022; Buying a strata property
Do you need building, pest and strata reports before an auction?
Building, pest and strata reports are not compulsory in NSW, but they are recommended, and at auction they need to be done before you bid. You cannot use cooling-off to get out of the contract if a report later finds a problem.
When you ask the agent for the contract, the agent must tell you about any pre-purchase inspection reports it knows of, including who prepared them and whether you can buy a copy. A copy may be cheaper than a new report, but a report prepared for someone else may not cover what matters to you, so consider your own reports as well.
For a lot in a strata scheme (most units and many townhouses), a strata report usually combines an inspection of the owners corporation's records with a section 184 strata information certificate. It shows levies, any outstanding amounts and how the capital works plan will be funded.
Sources: Pre-purchase inspection reports when buying a home; Pre-purchase inspection reports: requirements for property agents; Buying a strata property; Section 184 certificate (strata schemes)
How should you prepare your finance and deposit?
Have your finance in place before auction day, because the contract binds you once it is signed and exchanged. Talk to your lender about whether your approval covers this property and buying at auction.
Have the deposit ready in a form the agent accepts. If you want to pay less than 10% or use a deposit bond, agree it before the auction.
Work out your transfer duty too. It must be paid by the earlier of the settlement date or 3 months after the contract date.
Sources: Buying property at an auction; Who pays transfer duty and when
Can you get out of an auction contract if documents are missing?
Possibly, but only in narrow cases. If the vendor did not attach the prescribed documents to the contract, the buyer may rescind by written notice within 14 days after the contract is made, unless the contract has been completed.
This right comes from section 52A of the Conveyancing Act 1919 (NSW) and the Conveyancing (Sale of Land) Regulation 2022, not from the cooling-off rules. A buyer may also be able to rescind for breach of a prescribed vendor warranty.
Whether the right applies depends on exactly what is missing, so get advice straight away. The better protection is to check the attachments before you bid.
Sources: Conveyancing (Sale of Land) Regulation 2022; Steps to selling a property
What rules apply to agents at auctions?
Agents must follow NSW auction and agent conduct laws, including the rules on bidder registration. Dummy bidding is an offence.
The Property and Stock Agents Amendment (Underquoting and Other Agent Conduct) Act 2026, assented to on 29 June 2026, raised penalties for some offences, including dummy bidding, to up to $110,000 for a corporation and $55,000 for an individual.
Sources: Changes to property and stock agents laws; Buying property at an auction
What should you bring on auction day?
Bring what you need to register, bid and sign on the spot. If you win, you sign the contract and pay the deposit straight away, so there is no time to sort things out later.
- Identification issued by a government or a financial institution, so you can register to bid.
- Deposit funds in a form the agent has confirmed it will accept, or written confirmation of any lower deposit or deposit bond agreed before the auction.
- Your solicitor's or conveyancer's details, which go into the contract.
- Your maximum price, decided in advance with your finance and transfer duty in mind.
Sources: Buying property at an auction
How a conveyancing solicitor can help
Baulkham Hills Conveyancing can review the auction contract and its attachments before you bid, explain the special conditions and settlement terms, and coordinate settlement if you are the winning bidder. Send us the contract or call (02) 9000 1408 before auction day.
Frequently asked questions
Can you back out after winning an auction in NSW?
Generally no. There is no cooling-off period at auction, so the contract binds you once it is signed and exchanged. If you cannot complete, you risk losing your deposit and may be liable for the vendor's losses. Narrow rights remain, such as rescinding if prescribed documents were not attached.
How much deposit do you pay at auction in NSW?
The deposit at auction is usually 10% of the price, paid when the winning bidder signs the contract. Unless a lower amount or a deposit bond was agreed before the auction, expect to pay 10% on signing, so raise any lower deposit or deposit bond with the agent well before auction day.
Do you need ID to bid at an auction in NSW?
Yes. To bid at a NSW residential auction you must register with the selling agent, giving your name and address and showing identification issued by a government or a financial institution. You cannot bid until you are registered.
Can the vendor see who registered to bid?
No. The agent keeps a bidders record of everyone who registers, and that record is confidential, even from the vendor. Registering simply allows you to bid; it does not commit you to buy unless you are the winning bidder.
Is there a cooling-off period if the property is passed in?
Not if contracts are exchanged on the day of the auction after the property is passed in. A contract exchanged on a later day is generally treated like a private sale, so the usual 5 business day cooling-off applies unless the buyer's solicitor or licensed conveyancer gives the vendor a section 66W certificate to waive or shorten it.
Can I make an offer before an auction in NSW?
Yes, and the seller may accept it. If you exchange before auction day, it is a private sale, so the usual 5 business day cooling-off period applies unless your solicitor or licensed conveyancer gives the seller a section 66W certificate to waive or shorten it. Sellers often ask for one before auction, so finish your finance, inspections and contract review first.
Should I get a building and pest inspection before an auction?
It is not compulsory, but it is recommended. Because there is no cooling-off at auction, any report needs to be done before you bid. When you request the contract, the agent must tell you about any pre-purchase reports it knows of, including who prepared them and whether you can buy a copy.
When does settlement happen after an auction in NSW?
Under the standard NSW contract, completion is due on the 42nd day after the contract date unless the contract says otherwise. NSW Government guidance says settlement generally happens around 6 weeks after exchange. Check the special conditions before you bid, because the agreed date may differ.
Sources
- Buying property at an auction – NSW Government (NSW Fair Trading)
- Contracts and deposits when buying property in NSW – NSW Government (NSW Fair Trading)
- Making an offer on a property – NSW Government (NSW Fair Trading)
- Pre-purchase inspection reports when buying a home – NSW Government (NSW Fair Trading)
- Pre-purchase inspection reports: requirements for property agents – NSW Government (NSW Fair Trading)
- Buying a strata property – NSW Government (NSW Fair Trading)
- Section 184 certificate (strata schemes) – NSW Government (NSW Fair Trading)
- Sales contracts: requirements for property agents – NSW Government (NSW Fair Trading)
- Steps to selling a property – NSW Government (NSW Fair Trading)
- Conveyancing (Sale of Land) Regulation 2022 – NSW Legislation
- Contract for the sale and purchase of land 2026 edition (sample) – The Law Society of NSW
- Exchanging contracts and settlement when buying a home – NSW Government
- Who pays transfer duty and when – Revenue NSW
- Changes to property and stock agents laws – NSW Government (NSW Fair Trading)
- Conveyancing Act 1919 (NSW), section 66T: No cooling off period in certain cases – AustLII (NSW Consolidated Acts)
Related pages
Related services
Related guides
- The cooling-off period in NSW: how it works for property buyers
- Section 66W certificates in NSW: what buyers give up and what to check first
- Strata reports in NSW: what to check before buying a unit or townhouse
- The conveyancing process in NSW, step by step
Local pages
This guide is general information about New South Wales law as at 4 October 2026, not legal advice for your circumstances. Laws, thresholds and government fees change; check the official sources listed and contact us for advice about your matter.
Talk to us about your matter: call (02) 9000 1408, email info@baulkhamhillsconveyancing.com.au or request a quote online.