Home loans & credit
Bridging finance, explained
Bridging finance covers the gap between buying one property and selling another. Here is how peak debt, end debt and capitalised interest actually work, and where the structure goes wrong.
William Krypuy
Senior Broker
· 10 min read

What bridging finance does
Bridging finance is a short-term loan that covers the gap between buying one property and selling another. You settle on the new place before the old one has sold, and the bridging facility carries both positions until the sale completes.
It exists because property settlements rarely line up. The seller of the house you want has a date in mind. The buyer of the house you own has a different one. The auction you win is the auction you win, on the day it runs. Bridging removes the requirement that those dates agree with each other.
Most residential bridging is arranged as a home loan product through mainstream and non-bank lenders. On the commercial side it is more often funded privately, because the timeframes are shorter and the exit needs to be evidenced rather than forecast. The structure is the same in both cases, and so is the discipline required to use it well.
Peak debt and end debt
Two numbers govern every bridging loan, and almost every decision about the structure comes back to one or the other.
| Number | What it includes | How it is assessed |
|---|---|---|
| Peak debt | Your existing loan balance, the purchase price of the new property, stamp duty and acquisition costs, and the interest expected to accrue across the bridging term, less whatever cash you contribute | Against the combined value of both properties. A maximum loan-to-value ratio applies across the pair, and the lender sets it |
| End debt | Peak debt less the net proceeds of the sale, after agent commission, marketing costs, conveyancing and the discharge of the existing mortgage | Against your income, at an assessment rate above the actual rate, exactly like an ordinary home loan |
Peak debt is a temporary position, and lenders treat it that way. What they will not compromise on is the end debt. That is the loan you are still holding in twelve months, and it has to be serviceable on your income in its own right.
Net proceeds is the number people get wrong. It is not the sale price. Agent commission comes out, so does the marketing budget you agreed at listing, so do the conveyancing costs, and so does anything outstanding on council rates or owners corporation levies. Model the end debt on what actually lands in the account.
What peak debt is actually made of
- Still owing on the outgoing home$300,000
- The incoming purchase, less the cash contributed$1,130,000
- Stamp duty and acquisition costs$70,000
Peak debt is not the price of the new house. It is both positions plus the cost of getting into one of them, carried across two securities at once. Expected interest sits on top of this figure rather than inside it, which is why the term you choose changes the number.
Illustrative projection only, continuing the example above. Not a quote and not an offer of credit.
View as a table
| Component | Amount | Share |
|---|---|---|
| Still owing on the outgoing home | $300,000 | 20% |
| The incoming purchase, less the cash contributed | $1,130,000 | 75% |
| Stamp duty and acquisition costs | $70,000 | 5% |
| Total | $1,500,000 | 100% |
Closed and open bridging
Lenders split bridging into two categories, and the distinction decides both the price and the appetite.
Closed bridging
- Status of the sale — The outgoing property is under an unconditional contract with a known settlement date
- The lender's risk — Low. The exit is contracted and dated
- Usual term — Set to the contracted settlement date
- Availability — Broad, including through mainstream lenders
- What the lender wants to see — The contract of sale and evidence the deposit has been paid
Open bridging
- Status of the sale — The property is listed, or not yet listed, with no contract in place
- The lender's risk — Higher. The exit is a forecast
- Usual term — A fixed window set by the lender, commonly around six months for an established property and longer where a new home is being built
- Availability — Narrower. More often non-bank, specialist or private, and priced accordingly
- What the lender wants to see — A valuation, an agent appraisal backed by comparable sales, and a realistic price expectation
General characteristics of the two bridging types. Individual lender policy varies.

If you can exchange on the outgoing property before you commit to the incoming one, do it. Converting an open bridge into a closed one widens the field of lenders, shortens the assessment, and lowers the cost. It is the single most valuable thing you can do to the deal, and it is available to almost everyone who is willing to sell first.
How the interest is charged
Bridging interest is usually capitalised. Rather than making a monthly repayment, the interest is added to the loan balance and repaid out of the sale proceeds at the end. That is what makes bridging survivable. You are not asked to service two mortgages out of one income while a sales campaign runs.
Capitalisation has a cost, and it is not linear. The balance grows each month, and interest is then charged on the grown balance. A bridging period that runs three months longer than planned does not cost you three months of interest at the original balance. It costs three months at a larger one.
- Interest through the bridge
- Usually capitalised
- Monthly repayments
- Often none
- What drives the cost
- Balance and time
- Extending the term
- A lender variation
Structures differ. Some lenders capitalise the whole facility. Others require you to service the end-debt portion monthly and capitalise only the peak-debt portion above it. Ask which applies before you sign, because it changes your cash flow through the bridge, not just the final number.
What a lender assesses
A bridging application asks for everything an ordinary home loan asks for, plus proof that the exit is real. Expect to produce most of the following.
- Evidence of value on both properties. A valuation on the incoming property is standard, and on the outgoing one it is common.
- Income evidence sufficient to service the end debt: payslips for employees, or tax returns, notices of assessment and business financial statements if you are self-employed.
- A credible sale strategy: the agency agreement or appraisal, the campaign timeline, and the price range you are working to.
- The contract of sale on the incoming property, plus evidence the deposit has been paid and where it came from.
- Statements for every existing debt, including the loan being discharged at settlement.
- An exit that does not depend on a second thing also going right. Lenders are wary of an exit that first requires a planning approval, a tenant, or another sale.
Self-employed applicants should expect more questions, not fewer. Where income is drawn irregularly, or through a trust or a company structure, put that in front of the lender at the start rather than letting it surface halfway through assessment.
Bridging on the commercial side
The same shape exists in business finance, and there the gap being bridged is rarely a property settlement. It is a funding event.
- A commercial purchase where the bank's approval will not land before the contract settles.
- A refinance approved in principle that will not settle in time to meet a deadline already running.
- A statutory demand, a director penalty notice or an ATO enforcement step, where the real exit is a longer-term facility already in progress.
- A development where the construction facility is weeks away and the land settlement is not.

Commercial bridging is shorter, more expensive and faster to settle than the residential version, and it is frequently funded privately. The test a private lender applies is narrow and consistent: the exit has to be real, dated and evidenced. They are buying an exit, not a story about one.
Where the purpose is genuinely business, the loan generally sits outside the National Consumer Credit Protection Act. The consumer protections that attach to a home loan do not apply in the same way. That is not a reason to avoid it, but it is a reason to read the terms properly and to ask, before you sign, exactly what happens if the exit is late.
- Caveat loan
- A short-term facility secured by a caveat lodged over property, usually sitting behind an existing mortgage. Quick to arrange, and narrow in what it can carry.
- Statutory demand
- A formal demand for payment of a debt owed by a company. It has consequences if it is ignored, and it is a matter for a lawyer or an insolvency practitioner rather than a broker.
- Director penalty notice
- A notice that can make a company director personally liable for certain unpaid company tax. The response options are time-limited, so it belongs in front of a registered tax agent immediately.
- Construction facility
- Staged funding released against building progress. It rarely arrives in time for the land settlement, which is one of the gaps bridging is used to cover.
Where bridging goes wrong
Bridging fails in predictable ways, and nearly all of them trace back to one assumption: that the outgoing property will sell for what the owner hopes, in the time the owner hopes.
- 01The price expectation came from an appraisal rather than from the market. Appraisals are opinions, offered by people who would like the listing.
- 02The campaign ran long, the term expired, and the extension had to be negotiated with no leverage at all.
- 03Net proceeds were calculated on the sale price instead of after commission, marketing, legals and outstanding levies, so the end debt landed higher than modelled.
- 04The end debt was never genuinely serviceable, and the bridge simply moved the problem twelve weeks into the future.
What the sale price does to the end debt
A $100,000 swing in the sale price is about eleven per cent of the price and about seventeen per cent of the end debt. The bottom of the range is the figure to test your income against, because it is the one you do not control.
Illustrative projection only, continuing the example above with selling costs of about $40,000. Not a quote and not an offer of credit.
View as a table
| Amount | |
|---|---|
| Sells at $950,000 | $590,000 |
| Sells at $900,000 | $640,000 |
| Sells at $850,000 | $690,000 |
How to run the decision
- 01
Get a range in writing, then use the bottom of it
Ask two or three agents for a price range backed by comparable sales, not a single number. Model the entire exercise on the low end. If it works there, everything above it is upside rather than a requirement.
- 02
Work out net proceeds, not sale price
Subtract agent commission, the agreed marketing spend, conveyancing, and any outstanding council rates or owners corporation levies. What remains is what actually pays down the bridge.
- 03
Test the end debt against your income
Take peak debt, subtract net proceeds at the low end, and check the residual loan is serviceable at an assessment rate above the actual rate. A repayment calculator gives you an indicative starting figure. It is indicative only, not an offer of credit and not a guarantee of approval.
- 04
Try to close the bridge
If you can exchange on the outgoing property before committing to the incoming one, the deal becomes cheaper and more lenders will look at it.
- 05
Set the term with margin, and agree the extension terms now
Ask what the extension process is, what it costs, and who decides. Getting that answer while the lender still wants your business is worth a great deal more than getting it in month five.
- 06
Line up the exit paperwork early
The discharge of the existing mortgage, the incoming contract and the two valuations are the items that most often delay a bridging settlement. None of them are difficult. All of them take longer than expected.





