Quick answer
To buy commercial property before you sell, a bridging loan funds the new purchase using both properties as security. Your debt peaks while you own both, then the sale proceeds pay the bridging portion down, leaving an end debt on the new premises. Lenders focus on peak debt against combined value, a realistic sale price and a term with room for the sale to take longer than planned.
Key points
- Both properties usually secure the bridge while you own them
- Peak debt is highest between the purchase settling and the sale settling
- The sale of the old premises is the exit; evidence of its value matters
- End debt is what remains on the new premises once the sale settles
- Typical security
- Old and new premises together
- Property-secured range
- $20k – $5m
- Exit
- Settlement of the property you're selling
- Key number
- Peak debt vs combined value
The right premises rarely come up at a convenient time. The warehouse next to your biggest customer, the clinic with parking, the shopfront on the corner you’ve watched for years: when it lists, you either move or watch someone else buy it. The problem is that most of your borrowing power is sitting in the premises you already own, and they haven’t sold.
Buying before you sell is the textbook bridging case. There are two events. Event A is the settlement of the property you’re buying. Event B is the settlement of the property you’re selling. For a period, you own both. A bridging loan carries you across that span.
How does buying before selling actually work?
In most structures, both properties are offered as security. The lender looks at them together, as one package, and funds the new purchase against the combined equity. When your old premises sell, the net proceeds go straight to paying down the bridge. What’s left owing sits on the new property and becomes your ongoing debt.
It helps to think in three numbers:
- Peak debt. Everything you owe while you hold both properties: your current loan, plus the purchase price and purchase costs (stamp duty, legals, any adjustments), less the cash you put in, plus any finance costs added to the loan.
- Net sale proceeds. The expected sale price of your current premises, less agent’s commission, legals and adjustments.
- End debt. Peak debt minus net sale proceeds. This is the long-term loan you’ll carry on the new premises.
The bridging timeline and peak-debt calculator works all three out from your figures and draws the timeline for you.
What will a lender look at first?
A bridging lender reads the plan from the far end. They want to know that the sale will happen, roughly when, and for roughly how much. In practice that comes down to:
- Evidence of value for the property you’re selling: an agent’s appraisal at minimum, and often a formal valuation.
- Status of the sale: not yet listed, listed, under offer, exchanged or unconditional. Each step makes the exit firmer.
- Peak debt against combined value, which works like a loan-to-value ratio across both properties. The more headroom, the more room there is for a lower price or a slower sale.
- End debt you can carry. Once the bridge is repaid, can the business service what’s left on the new premises?
You’ll notice what isn’t at the top of that list: a perfect credit history. Past credit issues are considered case by case. The security and the exit do most of the talking.
An illustrative example
A family-owned joinery business owns its workshop outright in a suburb that has gone residential around it. A larger industrial unit comes up for $1.6m, with about $95k of stamp duty and legal costs. They expect the old workshop to sell for around $1.1m, with $35k of selling costs, and they’ll put in $120k of cash.
| Line | Amount |
|---|---|
| Existing debt | $0 |
| Purchase plus costs | $1,695,000 |
| Less cash contributed | −$120,000 |
| Peak debt | $1,575,000 |
| Net sale proceeds | $1,065,000 |
| End debt on the new unit | $510,000 |
Against combined security of $2.7m, peak debt is about 58% of value. The end debt of $510k sits against a $1.6m property. On paper this is a comfortable bridge. The real work is confirming the $1.1m sale price and deciding how long to allow for the sale. (Illustrative figures only.)
How long should the bridge run?
As long as the sale might realistically take, plus a buffer. A commercial sale can involve a marketing campaign, negotiation, due diligence by the buyer and a settlement period set in the contract. Any of those can stretch. Our guide to bridging loan terms walks through how to size the buffer, and our page on exiting by sale covers what makes a sale exit convincing.
A short test before you commit: write down the date you hope the sale settles, the date you expect it to settle, and the date it could settle if the first buyer falls over. Ask for a term that covers the third one.
If you want a second opinion on your dates and numbers at this point, you can run your buy-before-you-sell plan past a specialist in about a minute.
What about stamp duty and GST?
Buying a commercial property triggers transfer (stamp) duty in the state where it sits, and the timing of that payment is part of your Event A costs. Check the rules with your state revenue office, for example Revenue NSW, and build the amount into the purchase costs in the calculator.
On the sale side, commercial property sales are generally subject to GST unless an exemption such as a going concern applies, and a capital gain may arise. The ATO’s guidance on selling commercial premises explains how GST, the margin scheme and the small business CGT concessions can apply. Your accountant should confirm your net proceeds, because tax can change what’s actually available to repay the bridge.
Buy first or sell first?
Selling first means no bridge, but it can leave you without premises or renting in between, and you may miss the property you want. Buying first secures the property but means carrying two properties for a while. Neither is right for everyone. Our guide on whether to sell first or buy first sets out the trade-offs, and if the problem is just the deposit on exchange, a deposit bridge may be all you need.
Could you buy first? Let’s find out.
If the new premises are the right move, the finance shouldn’t be the reason you miss them. Tell us about both properties, your cash contribution and where the sale is up to. It takes about 60 seconds, there’s no credit check when you first enquire, and your details go to one team rather than being passed down a line of lenders. A bridging specialist will call you to talk through peak debt, end debt and timing.
Please answer the form accurately, particularly the property values and existing loans. That’s what lets us suggest the right structure on the first call.
Frequently asked questions
Can I buy new business premises before selling my current ones?
Yes. A bridging loan can fund the purchase while you still own your current premises, usually secured over both properties. Once the old premises sell, the net proceeds pay down the bridging portion and what remains becomes your ongoing loan on the new property.
Do I have to have my current premises listed before I apply?
Not always, but it helps a great deal. A listing agreement, an agent's appraisal or a recent valuation turns a hopeful sale into evidence. If you already have a signed contract, even better, because the exit then has a date and a price.
What is peak debt when buying before selling?
It's the total you owe while you own both properties: your existing loan, plus the new purchase price and costs such as stamp duty and legals, less the cash you put in, plus any finance costs added to the loan. Our bridging calculator works it out from your figures.
What happens if my old premises don't sell in time?
That's what the term buffer and a plan B are for. Options include extending the term using the equity in both properties, reducing the asking price, or refinancing the remaining debt. It's far easier to plan these before you buy than to negotiate them later.
Can I buy before I sell if my business has an ATO debt?
Possibly. ATO debt is considered case by case. With property security and a clear exit, a bridge can sometimes fund the purchase and clear the tax debt in the same structure. Tell us about the debt up front so the plan accounts for it.