Buying at Auction With a Bridging Loan

By Jason Given - 2026-08-14 - 6 min read

Why bridging loans work for auctions

Auctions require unconditional finance. There is no finance clause, no cooling-off period, and no room for "subject to sale" conditions. When the hammer falls, you are committed. That creates a problem for anyone who has not yet sold their current home.

Without bridging finance, you have two options - neither of them great. You can sell your current home first, which means you might end up homeless between properties or rushing into a purchase you are not happy with. Or you skip the auction entirely and miss out on the property you actually want.

A bridging loan solves this. It lets you hold both properties simultaneously - your existing home and the one you are buying at auction. The bridging facility covers the purchase while your current property remains on the market (or is yet to be listed). When your existing home sells, the bridge closes and you refinance to a standard home loan.

Lendology's approach is to get the bridging facility pre-approved before auction day. That way, you walk into the auction room knowing the finance is sorted. You bid with the same confidence as a cash buyer - because from the vendor's perspective, you are one.

Pre-auction preparation

Getting ready for auction with bridging finance is not complicated, but it does need to happen in the right order. Here are the four steps:

• 1.Get bridging pre-approval. Submit your financials, and Lendology assesses your equity and borrowing capacity. The lender confirms the bridging facility. Do this 1-2 weeks before auction day - it gives enough time for any questions to be resolved without last-minute pressure.
• 2.Set your maximum bid. Lendology models the peak debt (both properties held simultaneously), the monthly interest cost during the bridge, and your end position after your current property sells. This gives you a hard ceiling for bidding - not a guess, but a number backed by actual lender assessment.
• 3.Confirm your deposit. Auctions require a 10% deposit on the day (or as negotiated). Confirm where this comes from - savings, equity release, or a deposit bond. Lendology confirms your deposit position as part of pre-approval so there are no surprises.
• 4.Brief your conveyancer. They need to know you are buying with bridging finance. Settlement terms may need to be negotiated, and your conveyancer should be across the structure before auction day.

Understanding peak debt at auction

Peak debt is the total amount you owe when you are holding both properties at the same time. It is the single most important number in any bridging loan scenario, and understanding it before auction day is essential.

Peak debt = your existing mortgage + the new purchase price. For example: if your existing mortgage is $400,000 and you purchase at auction for $1,100,000, your peak debt is $1,500,000.

At an interest rate of 7.5%, the monthly cost during the bridging period is approximately $9,375. Over a 4-month bridge (which is roughly the average sale time in Adelaide), the total interest cost comes to approximately $37,500.

That sounds like a lot - but it needs to be weighed against the costs you avoid by not selling first: temporary accommodation, double moves, storage fees, and the stress and financial risk of buying under pressure after you have already sold. For most clients, bridging works out cheaper and significantly less disruptive.

Lendology models this precisely for every client. You will know the peak debt, the monthly cost, and the total interest cost across different sale timelines - so you can factor it into your maximum bid with confidence.

Auction day

With bridging pre-approval in place, auction day is straightforward. You bid knowing the finance is approved. No finance clause is needed - you are an unconditional buyer.

This is a significant advantage. Vendors and their agents strongly prefer unconditional offers. In a competitive auction, being an unconditional buyer puts you on equal footing with cash buyers and ahead of anyone who needs a finance clause or is subject to sale.

If you win, you sign the contract and pay the deposit on the day. Settlement typically follows within 30-60 days, depending on the terms negotiated.

If you do not win, the pre-approval stays active. You can use it for the next auction or private sale opportunity. There is no cost for not using it.

After the auction: managing the bridge

Settlement on the new property typically occurs 30-60 days after auction. During this time, your existing property goes on the market (or continues if it is already listed).

Interest on the peak debt is capitalised in most cases, which means you are not making separate repayments during the bridging period. The interest accrues and is paid when your existing property sells.

When your existing property sells, the bridging loan is paid out and you refinance to a standard home loan on the new property. The bridge closes, and you are left with a single mortgage on the home you actually want to live in.

Lendology monitors the entire process and coordinates with your real estate agent and conveyancer throughout. If the sale takes longer than expected, we work with the lender on extensions well before any deadline approaches.