How to Bid at a Property Auction on Behalf of Someone Else
Can You Bid at a Property Auction on Behalf of Someone Else?
In some circumstances, a person may be able to bid at a property auction for another buyer. However, the agency will usually need to know who the actual purchaser is and confirm that the bidder has authority to act for them.
The Short Answer
It may be possible to bid on behalf of another person, company or purchasing entity, but you should arrange this with the selling agent before the auction begins.
The registration and authority requirements can vary depending on the auction, location and purchaser structure, so do not assume that simply registering in your own name allows you to bid for somebody else.
Why Might Someone Bid for Another Buyer?
The Buyer Cannot Attend
A purchaser may be interstate, overseas, travelling or otherwise unable to attend the auction personally.
A Family Member or Representative Is Bidding
A buyer may ask another person to attend and place bids according to instructions they have agreed beforehand.
The Purchase Is Through a Company or Other Entity
The person physically placing the bid may not be the same person or entity that will ultimately appear as the purchaser.
A Professional Representative Is Involved
In some cases, a buyer may arrange for an authorised representative to bid for them as part of their purchase strategy.
Will You Need Authority to Bid?
You may need to provide evidence that you are authorised to bid for the intended purchaser.
The selling agency may ask for purchaser details, bidder identification, written authority or other supporting information before approving the registration.
The exact documents required can differ, so the best approach is to contact the selling agent well before auction day and explain who will be bidding and who intends to purchase the property.
Make Sure the Registration Is Set Up Correctly
The person holding the bidder number, paddle or online bidding access may not always be the ultimate purchaser.
If you are bidding for somebody else, tell the agency before the auction so the bidder registration can be completed in the appropriate way.
Leaving this until after a successful bid can create avoidable confusion at exactly the point when important sale documentation may need to be completed.
What If You Are Buying Through a Company or Trust?
Purchasing through a company, trust or another structure may involve additional information or documentation.
Buyers should confirm the intended purchaser details with their legal, accounting or other professional advisers before bidding and then advise the selling agent of the correct structure.
Do not rely on the assumption that purchaser details can always be changed easily after the auction.
Can Someone Bid for You Online?
Remote participation may provide more than one option depending on the auction.
A buyer may be able to register and bid personally online, or the agency may support another approved arrangement where a representative participates on the buyer's behalf.
Auctions Live supports digital bidder registration and online bidding where enabled by the agency, as well as workflows that can support authorised participation arrangements.
Buyers should confirm with the agency which method is appropriate before registration is completed.
What About Telephone Bidding?
Some auctions may allow a buyer to participate by telephone through an agency representative.
In this type of arrangement, the buyer communicates their bidding instructions to the representative, who then places or communicates the bid into the live auction.
If telephone bidding is available, arrange it before auction day and make sure you understand how the process will work.
Who Is Responsible for the Bids Being Placed?
If you have agreed to bid for another person, you should have clear instructions about the amount you are authorised to bid and how decisions will be made during the auction.
Property auctions can move quickly, so unclear instructions can create problems if the bidding reaches the buyer's limit or circumstances change during the auction.
Both the purchaser and their representative should understand the arrangement before bidding begins.
Questions to Ask Before Bidding for Someone Else
- Can I register to bid on behalf of another purchaser?
- What authority or documentation will the agency require?
- Whose name should appear on the bidder registration?
- Whose details will appear on the sale documents if we are successful?
- Does the purchaser need to complete identity checks personally?
- Can the purchaser bid online instead?
- Is telephone bidding available?
- What should happen if I cannot contact the purchaser during the auction?
- Should our legal adviser review the arrangement before auction day?
Common Questions About Bidding for Someone Else
Can a family member bid for me?
It may be possible, but the agency should be told beforehand so any registration, authority and purchaser requirements can be confirmed.
Can I register in my own name and decide later who is buying?
Buyers should not assume this will be permitted. The intended purchaser and bidding arrangement should be confirmed with the agency before the auction.
Can someone bid for a company?
Potentially, but the agency may require information confirming the company and the bidder's authority to act on its behalf.
Is online bidding easier than appointing another person?
For some buyers it may be. If online bidding is available, it can allow the purchaser to participate remotely themselves rather than appointing another person to make bidding decisions.
General Information Disclaimer
This article provides general information only and does not take into account the laws, regulations, auction requirements or property practices that may apply in a particular country, state or territory.
Requirements can vary depending on the property, location and circumstances. Buyers should seek appropriate professional advice and confirm any specific requirements with the relevant real estate agent, auctioneer, legal adviser or other qualified professional before acting.
Posted 28th October, 2026