When a Bridging Loan Is Really a Second Mortgage
Some short term finance sold as a bridging loan is documented as a second mortgage. How to tell, why the price flips to a monthly rate, and what changes.
Property Lending Hub
Second Mortgage · Bridging Loan · Australia
They called it a bridging loan. The documents say second mortgage. That is not always wrong, and it is sometimes the right instrument, but it changes the price, the security and, in one case the Federal Court has ruled on, the protection you keep.
Quick Answer
A bridging loan is a second mortgage whenever the lender takes its security behind your existing first mortgage instead of replacing it. The label on the offer does not decide that. The security clause does, and so does the unit the second mortgage rate is quoted in.
Part of the bridging, caveat or second mortgage guide, alongside bridging finance guide.
Also called: second mortgage bridging loan, bridging loan vs second mortgage.
When is a bridging loan actually a second mortgage?
A bridging loan is a second mortgage whenever the lender registers its security behind your existing first mortgage rather than replacing it. Nothing about the word on the offer decides that. Two quite different structures are sold under the same name in Australia, and the one you are being handed is settled by where the lender sits on title.
The first structure refinances. The lender takes the senior position across the outgoing and the incoming property for the term of the bridge, repays your existing loan, and is repaid when the outgoing property sells. The second structure does not refinance anything. Your bank stays in first position, untouched, and the short term money goes on behind it as a registered second mortgage, with its own documents, its own priority arrangements and its own price. Both get called bridging loans.
In deals I have seen, the borrower works out which one they have at the legal documents stage rather than at the offer stage, and by then the pricing has been agreed. The three way comparison between a bridge, a second mortgage and a caveat loan is set out in full elsewhere on this site, along with what each instrument means for consent and enforcement. This page is narrower. It deals with one thing: the substitution, and what changes when it happens.
What does not change is the shape of the money. It is still short term funding with a defined exit. What changes is the security, the pricing unit and, in one fact pattern, the law that applies to your contract.
How do you tell from the paperwork which one you are being offered?
You can tell from three lines: the security clause, the priority wording, and the unit the rate is quoted in. You do not need to be able to read a mortgage to find them, and you do not need the lender to volunteer the answer. Nothing on the SERP, in the citation map or elsewhere on this estate walks a borrower through their own offer, so here are the tells, written as they actually appear on paper.
What tells you it is a bridging facility
- Security is taken over both the outgoing and the incoming property for the bridging period, then released from one of them.
- The exit named in the document is the sale of the outgoing property, sometimes with a contract or a date attached.
- The rate is quoted per annum.
- Interest is described as set aside, retained, incorporated into the loan amount, or covered by an interest budget, rather than as a monthly charge.
What tells you it is a second mortgage
- Security is a registered mortgage over one property, expressly behind an existing first mortgage.
- The documents refer to the first mortgagee's consent, or to a deed of priority, or make one of them a condition of funding.
- The rate is quoted per month.
- Interest is described as capitalising onto the balance rather than being held aside at the start.
If the offer in front of you uses the phrase second charge, it was written for a market that is not this one. The Australian instrument is a second mortgage, the registry language is different, and the fact that the document has imported British wording is itself worth a question. The application and document sequence for a second mortgage is its own process, and it is not the process a refinancing bridge runs. Where a bank sits in front of the new money, what the senior lender allows behind it becomes a live question rather than a formality.
Why does the price change from a yearly rate to a monthly one?
The unit changes because the instrument changes. Annual pricing belongs to a facility that expects to be repaid out of a sale it has been underwritten against. Monthly pricing belongs to private money sitting behind a bank on a short, defined term, where the lender is pricing a position on title rather than a borrower's income.
Switchboard's own guide to how a second mortgage works publishes the convention, indicative and as at July 2026: private second mortgages are commonly quoted monthly, roughly 1 per cent to 2 per cent per month depending on combined loan to value ratio, property type and exit, while non-bank term second mortgages sit materially lower on an annualised basis. That guide owns the cost question and the pricing assessment in full. What matters here is narrower and it is the thing borrowers get wrong: a monthly figure and an annual figure are not comparable on the page they arrive on.
| Line on the offer | Quoted as a bridging facility | Quoted as a second mortgage | What to compare it against |
|---|---|---|---|
| The rate unit | Per annum, usually a variable rate | Per month, commonly roughly 1 per cent to 2 per cent per month on private funding, indicative as at July 2026 | Put both in the same unit before you look at either |
| How the interest is held | Commonly set aside inside the approved amount as an interest budget | Commonly capitalised onto the balance month by month | Total interest across the term you will actually run |
| Where the security sits | Usually across the outgoing and the incoming property for the bridging period | Registered behind the existing first mortgage on one property | Which titles are encumbered, and for how long |
| Whose agreement is needed | The incoming and outgoing lenders on a refinance | The first mortgagee, by consent or a deed of priority | Whether consent is a condition of funding |
| The term | Tied to the sale of the outgoing property | A short fixed term with a stated exit | What the document says happens on the day the term ends |
| The fee stack | Establishment and legal, quoted once | Establishment, legal, valuation and any consent processing, quoted once | The stack plus the interest, not the rate line alone |
| What ends it | The sale settles and the facility is repaid | Refinance, sale, or repayment from another source | Whether your exit is written into the offer or assumed |
The practical instruction is short. Before you compare two offers, put them in the same unit, and compare the total cost across the term you will actually run, not the headline. On a six to 12 month bridge that single step changes which offer is cheaper more often than any other.
What does capitalising a monthly rate do to your equity over 6 months?
A monthly rate that capitalises does not stay a monthly rate. Once the interest is added to the balance rather than paid, the balance charges interest too, so the figure that matters is what the monthly rate compounds to over the term. On the published convention above, roughly 1 per cent a month works out to approximately 12.7 per cent over 12 months, roughly 1.5 per cent to approximately 19.6 per cent, and roughly 2 per cent to approximately 26.8 per cent, indicative and before any fees.
The second thing it moves is the percentage the lender measures you against. Interest that is capitalised interest is debt, and combined loan to value ratio is tested on total debt against value. The worked lane below holds the property value flat on purpose, because a flat value is the honest case: it isolates what the capitalising balance alone does.
Basis, stated so it can be checked: an indicative property value of $1,200,000 held flat, an existing first mortgage of $700,000, and a second mortgage advance of $150,000 at an indicative 1.5 per cent per month capitalising, which is the midpoint of the published monthly band. Fees are excluded. Every figure below was computed rather than estimated, and rounded to the nearest dollar.
| Month | Balance if interest is capitalised | Equity remaining at an indicative value | What the combined percentage becomes |
|---|---|---|---|
| At drawdown | $150,000 | $350,000 | approximately 70.8 per cent |
| Month 3 | $156,852 | $343,148 | approximately 71.4 per cent |
| Month 6 | $164,016 | $335,984 | approximately 72.0 per cent |
| Month 9 | $171,508 | $328,492 | approximately 72.6 per cent |
| Month 12 | $179,343 | $320,657 | approximately 73.3 per cent |
In deals I have seen this is where a borrower is caught out, because the equity line moves without anything going wrong. Nothing was missed, no payment was late, the sale simply took longer than the plan assumed. Note that this is a different mechanism from a bridging facility that holds its interest in a budget fixed inside the approved amount at settlement, where the balance does not compound month on month. Different instrument, different arithmetic, and that contrast is the whole reason to know which one you have.
Does signing a business purpose declaration change your protection?
Signing a business purpose declaration changes which law applies to your loan, and it does not reliably do what the person asking for the signature assumes. The declaration creates a presumption that the credit is for business purposes and so sits outside the consumer regime. It is a presumption, not a switch.
The Australian Securities and Investments Commission put the limit plainly in media release 25-060MR of 16 April 2025, reporting Federal Court findings against a lender and an introducer: "business purpose declarations are ineffective including where a credit provider would have known, if they had made reasonable inquiries about the credit purpose, that the credit was in fact to be applied for personal use." The business purpose declaration provisions themselves sit in the National Credit Code, which is Schedule 1 to the National Consumer Credit Protection Act 2009, at section 13 "Presumptions relating to application of Code", read in Compilation No. 52 compiled on 1 July 2026.
The fact pattern that matters on this page is specific, and it is not business purpose lending in general. It is a bridge taken over a home, for the purchase of another home, documented on a business purpose declaration because that is how the short term money is written. Whether the declaration holds is a question about the purpose of the credit and the inquiries the credit provider made, not about what the borrower signed. That is a conversation for your solicitor before signature, not after, and it belongs at the same point in the file as the rest of the documents you are asked to sign.
When is a second mortgage the right instrument for a bridge?
Often, and treating the substitution as a trick would be wrong. Keeping a cheap first mortgage in place is frequently worth more than any saving from a lower headline rate on a facility that would refinance it, particularly where the existing loan is fixed, or where refinancing would trigger a break cost, a fresh assessment or a re-test of self-employed income.
It fits where four things are true at once. The existing first mortgage is worth keeping. The term is genuinely short and the exit is written into the offer rather than hoped for. The first mortgagee will consent, or the priority position can be documented. And the purpose is genuinely a business purpose, tested against what the credit is actually for.
It fits badly in the opposite cases: where the exit is a sale that has not been listed, where the term needed is longer than the funding is written for, or where the real purpose is personal and the paperwork says otherwise. Where a borrower is putting up more than one title, two properties behind one loan is its own structure with its own consequences. If you are weighing a bridge against a second mortgage now, a second mortgage through Switchboard is assessed on the position and the exit, and the wider lane sits in the property lending hub.
Short term finance sold as a bridging loan is sometimes documented as a second mortgage, and the difference is not cosmetic. The lender sits behind your bank rather than replacing it, the price is quoted per month rather than per year, the interest usually capitalises onto the balance instead of being held aside, and a business purpose declaration may be doing more work in the file than anyone has told you. None of that makes it the wrong product. It makes it a different product from the one the word suggests.
Key takeaway: read the security clause and the pricing unit before the rate line, because those two lines tell you which instrument you have been handed.Frequently Asked Questions
A bridging loan counts as a mortgage whenever it is secured by a mortgage registered on the title of a property, which is how most Australian bridging loans are written. What varies is the position: some bridging loans take first position by refinancing the existing loan, and some is registered behind an existing first mortgage, which makes it a second mortgage in everything but the name on the offer. The three way comparison of a bridging loan, a second mortgage and a caveat loan sets out what each instrument means on title.
A bank can refuse to consent to a second mortgage going on behind it, and consent is where these deals most often stall rather than at credit assessment. Your loan contract with the first mortgagee typically requires its consent before further security is registered, so the request goes to the senior lender and the answer is a matter of its policy rather than your equity position. Where consent is withheld, the alternatives are a different structure or a different senior lender, and how a second mortgage is placed depends on which of those is realistic.
A bridging loan is a second mortgage when the lender registers behind your existing first mortgage instead of replacing it, and it is not one when the lender refinances into first position across both properties. Both structures are marketed as bridging loans in Australia, so the label tells you very little. Offers written in imported British wording describe the same instrument under a different registry system, and the Australian document you would actually sign is a short term loan secured by a second mortgage.
A second mortgage behind a bank is priced per month because private lenders on short defined terms price the position on title and the length of the exposure rather than an annual borrower relationship. The consequence is a comparison problem rather than a pricing problem: a monthly figure has to be annualised before it can sit beside a per annum bridging loan quote. Where the monthly interest is capitalised onto the balance it also compounds, so the annualised figure is higher than twelve times the monthly rate.
Signing a business purpose declaration does not automatically remove consumer protection, because the declaration creates a presumption rather than a result. The regulator has stated that such declarations are ineffective where a credit provider would have known, on reasonable inquiries about the credit purpose, that the credit was in fact to be applied for personal use. On a bridge taken over a home for the purchase of another home, that question is live, and it is one to put to your solicitor before you sign anything in the second mortgage document set.
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