Quick answer
If a second mortgage is already on your property, the usual way to borrow more isn't a third mortgage, which few lenders offer. Instead, owners replace the existing second with a larger one, ask the current second lender for an increase, refinance both loans into one first mortgage, or use a different property. Each works only if total debt stays within the lending limit and there's a clear exit.
Key points
- Third mortgages exist but few lenders will rank behind two others
- Replacing the existing second with a larger one is the most common fix
- Total debt on the property must still fit the lending limit
- Get a written payout figure for the existing second before you start
- A different property, or several together, can avoid stacking loans at all
A second mortgage solved the last problem. Now the business needs more: a bigger contract, a second tax bill, an opportunity that won’t wait. The property still has equity, but there are already two loans on the title. Can you add a third?
Third mortgages exist, but they’re uncommon, and they’re rarely the cheapest or simplest answer. This guide explains why, and walks through the five ways business owners usually raise more money when a second mortgage is already in place.
Why are third mortgages so rare?
Mortgages on a Torrens title generally rank in the order they’re registered. Land Use Victoria describes a mortgage as security registered on the title that sets out the lender’s rights if the loan isn’t repaid, and the register for each property lists every mortgage and caveat against it. A third mortgage sits behind both of the others.
That position creates three problems for a lender:
- It’s paid last. On a sale, the first and second lenders are repaid before the third sees anything.
- It depends on two other contracts. Both the first and second mortgage may restrict further security, so two sets of consent may be needed.
- It’s exposed to the other loans growing. If either earlier loan has capitalising interest or can be redrawn, the cushion behind them shrinks over time.
Few lenders want that position, and those that take it price it accordingly. In most cases, rearranging the existing loans is better.
How much room is actually left?
Before choosing an option, work out the real number. Combined lending on a property can reach 80% of its value for residential security or 70% for commercial (less on large acreage), counting everything owing.
| Line | Round figures |
|---|---|
| What the property is worth | $1,200,000 |
| Lending limit at 80% (residential) | $960,000 |
| First mortgage owing | −$520,000 |
| Existing second mortgage, payout figure | −$180,000 |
| Room left for more borrowing | $260,000 |
Two numbers here are often wrong in owners’ heads. The first mortgage may have crept up through redraws, and the existing second may be larger than the original advance if interest has been capitalised. Get current statements for both, and ask the second lender for a written payout figure. The equity calculator helps you check the rest.
What are the five ways to borrow more?
1. Ask your current second lender for an increase. The simplest path if they’ll do it: a variation to the existing loan, no new registration, no payout. Some private lenders are open to it if the exit still works.
2. Replace the second with a larger second. The most common solution. A new lender advances a bigger second mortgage, pays out the existing one at settlement, and registers behind your first. You keep your bank loan and end up with one second mortgage instead of two layers.
3. Refinance both loans into a single first mortgage. Clearing the bank and the second mortgage together leaves one lender in first position, which often unlocks more and simplifies everything. See refinancing a bank first mortgage.
4. Use a different property. If you own another property with no loan on it, a first mortgage over unencumbered property needs no one’s consent.
5. Combine several properties. Spreading security across two or more titles can reach the amount without stacking a third loan on one. See multiple properties as security.
Not sure which fits? A 60-second enquiry lets a specialist look at the figures with you.
How does replacing a second mortgage work in practice?
Option 2 is where most owners land, so here are the steps:
- Get the payout figure for the existing second mortgage, in writing, valid to a settlement date. It should show the balance, interest to that date and any fees.
- Check the existing loan’s terms for early repayment costs. Some private loans charge for paying out early; ours have open terms with no penalty, which is worth knowing for next time too.
- Raise consent with your first lender, if the first mortgage contract requires it. Explain that the new second replaces the old one.
- Settle. At settlement the new lender pays the old second lender directly, the old mortgage is discharged, the new one is registered, and the surplus comes to you or goes straight to the creditor you need to pay.
The page on paying out an expiring private loan covers the payout mechanics in more detail, and our guide to paying out a second mortgage early explains discharge.
What will a new lender ask about the existing second mortgage?
Expect questions that are really about the story behind the first loan:
- What was it for, and did it work? If the last second mortgage funded a job that paid off, that’s a strong sign. If it plugged a gap that reopened, the new plan needs to show what’s different.
- Is it up to date? Arrears or a missed maturity date on the existing second change the assessment, though they don’t automatically rule you out.
- When does it end? A loan close to its end date makes replacement more urgent and may affect timing.
- Who holds it? The lender’s name and contact details are needed for the payout request.
Having the original Letter of Offer, recent statements and the payout figure on hand answers all four in one go.
Which option suits which situation?
| Your situation | Option that often fits |
|---|---|
| Existing second lender happy and the exit still works | Increase with the current lender |
| Existing second is near its end date or poorly priced | Replace with a larger second |
| First lender restrictive or both loans due for review | Refinance both into one first mortgage |
| Another property is debt-free | Separate first mortgage on that property |
| Not enough room on one title | Combine properties |
What should you watch out for?
- Stacking short-term debt without an exit. More borrowing behind your bank only works if there’s a clear way to repay it all. If the last second mortgage hasn’t been repaid because the exit stalled, fix the exit plan before adding to it. Our guide to exit strategy red flags is a useful check.
- Capitalised interest on both loans. If the existing second capitalises interest and the new money does too, the combined balance grows faster than it looks. Model the total at the end of the term.
- Costs at both ends. Discharging one loan and registering another means legal and registration costs on both. Factor them into the net amount.
- Using business debt for personal needs. These loans are for business purposes only.
business.gov.au’s guidance on choosing funding makes a fair point that applies here: be sure you understand exactly what you’re agreeing to, and compare options before committing. That matters more, not less, when there are already two loans on the title.
A worked example
Illustrative example: a Wollongong scaffolding company’s director has a home worth about $1.2m, with $520k owing to the bank and a private second mortgage now at $180k after capitalised interest. The company wins a large commercial contract that needs $200k for extra scaffolding stock and labour. Illustrative: at an 80% residential band, total lending could reach $960k, leaving $260k of room. Rather than adding a third mortgage, a new $380k second mortgage pays out the existing $180k at settlement and releases $200k for the contract. The bank consents to the replacement, and the new loan is repaid from progress payments over six months.
Already borrowed behind your bank? See what’s still possible
A second mortgage on the title doesn’t mean the door is closed. Often there’s room to do more, just in a tidier shape. Tell us about the property, both loans and what the business needs in a 60-second enquiry.
No credit check is run at enquiry, so you can find out without it showing on your credit report. We’re the direct lender, so your details aren’t passed around to multiple lenders; a specialist looks at both existing loans personally and calls you. Please give accurate current balances for both loans, ideally from recent statements and a payout figure, so the answer reflects where you really stand.
Frequently asked questions
Can I get a third mortgage for my business?
They exist but are uncommon, because a third-ranking lender is repaid only after two others and needs consent or cooperation from both. Most owners are better served by replacing the existing second with a larger one, or by using different security.
How do I replace my existing second mortgage with a bigger one?
The new second mortgage lender pays out the existing second at settlement using a written payout figure, the old mortgage is discharged, and the new one is registered behind your first. You receive the difference between the new loan and the payout, less costs.
Will my first lender need to consent again?
Often, yes. A new second mortgage is new security, even if it replaces an old one, so check your first mortgage contract. Tell your bank it's a replacement and give the new amount, purpose and exit.
Are there costs to paying out my existing second mortgage early?
It depends on that loan's terms. Ask for a written payout figure showing the balance, any interest to the payout date and any fees. Our own loans have open terms with no early repayment penalty.
What if there isn't enough equity for a bigger second mortgage?
Then adding another property as security, or using a debt-free property for a separate first mortgage, may work better. The equity calculator lets you test both.
Can a caveat sit behind two mortgages?
Sometimes, depending on the property's equity and what both existing loan contracts allow. It's specific to each title and contract, so it needs to be looked at individually rather than assumed.