BEHIND AN EXISTING FIRST
Second Mortgages
A second mortgage lets you use equity without disturbing a first loan you want to keep. It ranks behind that first loan, which is why the first mortgagee has to consent and why the pricing reflects the position.

- 01
Lender panel
40+
- 02
Ranking
Behind the first mortgage
- 03
Needs
First mortgagee consent
- 04
Typical use
Short to medium term
- An owner with a favourable first mortgage they do not want to disturb
- A business needing funds where breaking a fixed rate would be costly
- A developer adding funding to a site already carrying a first mortgage
- A director raising funds against equity to clear a tax liability
- An owner whose first lender will not increase the existing facility
- A borrower bridging to a full refinance a few months away
How it works
Three moves, in plain words.
- 01
Title search and payout figure
We establish who is on title, who holds the first mortgage, what is owing and whether there are other registered interests or caveats.
- 02
Check the first mortgagee’s consent policy
Before any cost is incurred. If the incumbent does not consent to second mortgages, we redirect to a refinance or a caveat facility rather than waste your money on a valuation.
- 03
Indicative terms
Amount, term, total cost in dollars, and the conditions. Second mortgage pricing sits between a first mortgage and a caveat facility, closer to the latter.
Check the first mortgage first
How ranking works, and why it decides everything
Mortgages on a title rank in order. The first mortgagee is paid in full from any sale before the second mortgagee receives anything. That single fact explains the entire product: the pricing, the conservative lending ratios, the paperwork and the consent requirement.
It also explains why a second mortgagee cares intensely about what is owing on the first, and about whether that amount could grow. A first mortgage with a redraw facility or a line of credit can increase after the second is registered, quietly eroding the second lender’s position. This is exactly what a deed of priority is for.
The deed of priority
A deed of priority is an agreement between the first and second mortgagees, usually joined by the borrower, that fixes the order and caps the priority amount of the first mortgage. It sets out how much the first lender can claim ahead of the second, including interest and enforcement costs, and it commonly restricts further advances by the first lender without the second’s agreement. Without it, most second mortgagees will not proceed.
- Priority amount
- The ceiling on what the first mortgagee can claim ahead of the second. Without a cap, interest and enforcement costs on the first can quietly erode the second lender’s position.
- Further advances
- Money the first lender releases after the second is registered, through redraw or a line of credit. A deed of priority usually restricts them for exactly that reason.
- Cross-default
- A clause that makes a default on one loan a default on the other. Both facilities sit on the same property, so trouble rarely stays on one side of the title.
- Consent
- The first mortgagee’s formal agreement to a second mortgage being registered behind it. Several major lenders decline as a matter of policy rather than as a negotiation.
The detail
02What a second mortgage is used for
+
| Purpose | Why a second rather than a refinance |
|---|---|
| Clearing an ATO or creditor liability | Speed, and the first loan stays untouched |
| Funding a project cost overrun | Development first mortgage is already in place |
| Business working capital | Cheaper than unsecured, without breaking a good first loan |
| Bridging to a sale or refinance | Short-term need against a dated exit |
| Deposit for a further purchase | Releases equity without a full restructure |
| Avoiding a fixed rate break cost | Breaking a fixed first loan can cost more than the second |
The pattern in all of these is that the first mortgage is worth keeping. If it is not worth keeping, the better answer is usually to refinance the whole position into a single facility, which is cheaper, simpler and does not need anyone’s consent.
Keep the first, add a second
- The existing first loan survives untouched, including a fixed rate you would otherwise pay to break.
- Faster than a full refinance, and it does not restart a long approval process with the incumbent.
- Priced materially higher than the first, because the position on title is materially weaker.
- Needs the first mortgagee’s consent, and several lenders decline it as a matter of policy.
Refinance the whole position
- One lender, one repayment, one set of legal costs, and nobody’s consent to wait for.
- Almost always the cheapest structural answer where there is time to do it properly.
- Breaks a fixed rate if you have one, and a break cost can be significant.
- Takes weeks, which is the reason it is not always available when the money is needed.
03What lenders assess on a second
+
- The combined position. The first balance plus the proposed second, against a conservative valuation. Second mortgagees keep a real buffer, because enforcement costs and first-mortgage interest sit ahead of them.
- Whether the first mortgage is amortising or interest only, and whether it has redraw or a line of credit that could grow.
- The conduct of the first mortgage. Arrears on the first are close to fatal for a second application.
- The exit. Most second mortgages are short to medium term with a defined way out, whether a refinance, a sale or a business event.
- The purpose of the funds, which determines both the documentation and whether the loan is regulated credit.
- The property itself. Location, type and saleability matter more here than on a first mortgage, because the second lender is the one who suffers if the property is hard to sell.
What is left behind the first mortgage
A second mortgagee is not measuring your equity. It is measuring what would survive the first mortgage, its interest and the cost of enforcement, on a valuation that assumes the property has to sell quickly.
Illustrative bands only. Every second mortgagee sets its own limits and a conservative valuation moves the reading. Not a quote and not an offer of credit.
View as a table
| Band | Up to |
|---|---|
| First mortgage territory | 65% |
| Where a second is considered | 80% |
| No buffer left | 100% |
| First mortgage plus the proposed second, against valuation | 76.0% |

04How the transaction runs
+
- 01
Title search and payout figure
We establish who is on title, who holds the first mortgage, what is owing and whether there are other registered interests or caveats.
- 02
Check the first mortgagee’s consent policy
Before any cost is incurred. If the incumbent does not consent to second mortgages, we redirect to a refinance or a caveat facility rather than waste your money on a valuation.
- 03
Indicative terms
Amount, term, total cost in dollars, and the conditions. Second mortgage pricing sits between a first mortgage and a caveat facility, closer to the latter.
- 04
Valuation and consent in parallel
Requesting consent takes time at the first mortgagee’s pace, not ours, and it is the usual cause of delay. We start it immediately.
- 05
Deed of priority negotiated and executed
This is where the priority amount is fixed. It involves both lenders’ solicitors and it is worth having your own solicitor read it.
- 06
Settlement and diarised exit
Funds advance and the mortgage registers. The exit date goes in the calendar on day one, and the refinance work starts well before it.
05Second mortgage, caveat loan, or refinance
+
| Refinance the first | Second mortgage | Caveat loan | |
|---|---|---|---|
| Speed | Slowest | Middle | Fastest |
| Cost | Lowest | Middle | Highest |
| Consent needed | No | Yes, from the first mortgagee | No |
| Security strength | Registered first | Registered second | Caveat only |
| Term | Long | Short to medium | Short |
| Keeps the existing first loan | No | Yes | Yes |
| Best when | There is time and the first is not special | The first is worth keeping and consent is available | The calendar rules out the others |
In our experience most people who ask for a second mortgage are better served by one of the other two, and a meaningful minority are better served by exactly what they asked for. Working out which group you are in takes one conversation and a title search.
06The risks, stated plainly
+
- There are now two lenders with security over the property, and two sets of obligations to meet.
- A default on the first mortgage can trigger consequences under the second, and often the reverse as well. Cross-default provisions are common and should be read.
- Second mortgage pricing is materially higher than first mortgage pricing, because the position is materially weaker.
- Terms are shorter. This is not permanent funding, and treating it as permanent is how it becomes expensive.
- If property values fall, the second mortgagee’s equity buffer disappears first, and refinancing out becomes harder at precisely the wrong moment.
- Legal costs on both sides, plus the deed of priority, add real cost to a modest advance. On smaller amounts those fixed costs matter proportionally more.
Run the numbers
See it with your own figures.
Indicative only. Change anything — the defaults are starting points, not quotes.
Monthly repayment
$4,108.44
$650,000 over 30 years at 6.50%, principal and interest.
- Number of repayments
- 360 monthly repayments
- Total repaid
- $1,479,039
- Total interest
- $829,039
- Interest as a share of the amount borrowed
- 127.5%
Where the money goes
A repayment figure is the easy part. Whether a lender will lend it, on what security and at what cost, is the part we handle. Bring the number you have landed on and we will tell you what is realistic.
Talk it through with a brokerAssumptions
- The interest rate is a figure you typed. It is not a current rate, a comparison rate, or a lender product we are offering.
- The rate is assumed to stay the same for the whole term. Variable rates move, and a single change resets every figure on this page.
- Repayments are principal and interest, equal in size, made on time, with no interest-only period, no repayment holiday and no redraw.
- Weekly and fortnightly figures are calculated on the true period rate — the annual rate divided by 12 — and on 360 repayments. They are not a monthly figure divided down.
- Interest is calculated per repayment period. A lender accruing daily and charging monthly will land on a slightly different number.
- Extra repayments are assumed to start with the first repayment and continue every period, and to reduce the balance immediately with no fee and no break cost.
- No fees are included: no establishment, valuation, legal, settlement, discharge or ongoing fees, no lender's mortgage insurance and no broker fee.

“Tell me the number. I have almost certainly seen worse.”
Dave Pham · Head Broker
FAQ
Questions people actually ask
If yours is not here, ask it. We would rather answer the awkward one early than have you find out later.
1300 015 267- Do I need my first lender’s permission for a second mortgage? +
- In practice, yes. Most second mortgagees require the first mortgagee’s consent and a deed of priority that fixes how much the first lender ranks ahead for. Several major lenders decline consent as a matter of policy, so the first step is always checking the incumbent’s position before spending money on anything else.
- What is a deed of priority? +
- It is an agreement between the two lenders that records the order of ranking and caps the priority amount of the first mortgage, including interest and enforcement costs. It usually also limits further advances by the first lender. Without it, the second lender’s position could be eroded without their knowledge.
- How much can I borrow on a second mortgage? +
- It depends on the equity remaining after the first mortgage, assessed against a conservative valuation with a real buffer. Second mortgagees keep that buffer because first-mortgage interest and enforcement costs would be paid ahead of them. Expect a more cautious number than a first mortgage would produce on the same property.
- Why is a second mortgage more expensive than my home loan? +
- Because the lender is paid second. If the property were sold, the first mortgagee is repaid in full before the second receives anything, so the second lender carries more risk on the same asset. The pricing reflects the position on title, not a view about you.
- Would refinancing be better than a second mortgage? +
- Often, yes. A single refinanced first mortgage is cheaper, simpler and needs nobody’s consent. A second mortgage makes sense when the existing first loan is genuinely worth keeping, when a fixed rate break cost is significant, or when there is not enough time for a full refinance.
- Can I get a second mortgage on an investment or commercial property? +
- Yes. Second mortgages are common on both, and on development sites where a first mortgage construction facility is already in place. On a development the first mortgagee’s consent is even more important, because the funding sequence and the priority amount interact with the drawdown schedule.
- How long does a second mortgage take to settle? +
- Longer than a caveat facility and shorter than a full refinance. The variable is the first mortgagee, whose consent process runs at its own pace and is the usual cause of delay. If you need funds inside a week, a caveat-based facility is generally the more realistic route.
- What happens if I default on a second mortgage? +
- The second mortgagee has enforcement rights, but exercises them behind the first mortgagee, so in practice the outcome usually involves a sale where the first is paid out first. Cross-default provisions mean trouble with one loan can create trouble with the other. Talk to the lender early rather than at the point of default.
- Can a second mortgage be used to pay tax debt? +
- Yes, and it is a common use where a business has equity but does not want to disturb an existing first loan. It works best as part of a plan that also addresses why the arrears built up. Whether paying is the right response to a specific notice is a matter for your registered tax agent.
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Credentials
- Credit Representative 554029
- ABN 20 672 801 651
- FBAA member
- AFCA external dispute resolution
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Check the first mortgage first
Send us the property and who holds the existing loan. We will tell you whether consent is realistic and whether a second is genuinely your best option.
Or call us
1300 015 267Monday – Friday, 09:00 to 17:30

“Tell me the number. I have almost certainly seen worse.”
Dave Pham · Head Broker