Second mortgages in Australia: the complete guide for business owners

A second mortgage lets a business owner borrow against the equity sitting behind an existing loan without disturbing that loan. The bank stays in first place on the title, its repayments and pricing carry on unchanged, and a private lender registers a further mortgage (or lodges a caveat) behind it. Across Australia we lend $20k to $5m this way for business purposes, secured on residential, commercial, industrial, rural property or vacant land.

This page is the map. It explains the moving parts in plain English, then points you to the page on this site that goes deepest on your exact situation.

What is a second mortgage, and why do business owners use one?

Land Use Victoria describes a mortgage as security a borrower gives a lender, registered on the title, setting out the lender’s rights if the loan isn’t repaid. A second mortgage is simply the next one in line. Because it ranks behind the first, it can be added without refinancing or even touching the first loan.

That is the whole appeal. Business owners usually reach for a second mortgage when:

• the existing bank loan is on a good term they don’t want to break;
• refinancing the whole debt would take weeks the business doesn’t have;
• the need is short (a tax bill, a supplier, a settlement gap) and will be repaid from a sale, a refinance or incoming payments;
• the bank has said no to a top-up, often because of trading history, an ATO debt or credit hiccups.

Our core page on second mortgage business loans walks through the structure in detail, and how second mortgages rank covers what “second” means when a property is sold.

How much can a second mortgage unlock?

The number that matters is the gap between the lending limit and everything already owing. We lend up to 80% of value on residential property and up to 70% on commercial (lower on large acreage), counting every existing loan on the title. There’s no sworn valuation: we assess value ourselves, so there is nothing to arrange or pay for.

Step	Residential example	Commercial example
What the property is worth	$1,000,000	$1,000,000
Lending limit (80% / 70%)	$800,000	$700,000
Less existing first mortgage	−$450,000	−$450,000
Room for a second mortgage	$350,000	$250,000

Those are round figures to show the arithmetic. Try your own in the secured borrowing calculator, or read how much equity you can use.

Second mortgage or caveat loan: which structure fits?

Both sit behind your bank. The difference is how the lender’s interest is recorded. A registered second mortgage goes on the title as a mortgage. A caveat loan relies on a caveat, which Land Use Victoria explains gives anyone looking at the title notice that a third party may have rights over the property. A caveat is generally quicker to put in place and suits short, sharp needs; a registered second suits longer terms. A caveat loan can later be converted to a registered second mortgage.

	Registered second mortgage	Caveat loan
How it shows on title	Registered mortgage	Caveat
Typical fit	A need running several months	Days matter, short term
Existing lender consent	Often required by the first mortgage contract	Depends on the first mortgage terms
Can change later	Already registered	Can convert to a registered second

The caveat loans page and the guide to first vs second mortgage vs caveat compare them properly. Not sure which you need? The five-question which secured loan quiz points you to one.

Every second mortgage and caveat page on this site

Use this index to jump straight to your situation.

The essentials

• Second mortgage business loans: the core explanation
• How second mortgages rank: priority, consent and sale
• Second mortgage vs refinance: which leaves you better off
• Private second mortgage: borrowing from a private lender rather than a bank

When time is short

• Fast second mortgage: what speeds settlement up
• Urgent second mortgage: triage when a deadline is already set
• Urgent caveat loan: the quickest property-backed option

When credit or paperwork is complicated

• Second mortgage with bad credit: defaults, judgments and past bankruptcy
• Second mortgage with ATO debt: clearing the tax office with equity
• Caveat loan with bad credit
• Low doc second mortgage and caveat
• Second mortgage for the self-employed

By property and owner

• Second mortgage on your home for business
• Second mortgage on commercial property
• Second mortgage on company or trust property
• Caveat loans and caveat loan requirements

Guides worth reading before you sign

• Second mortgage checklist and first mortgagee consent
• Will my bank find out about a second mortgage?
• Already have a second mortgage? How to borrow more
• Converting a caveat to a second mortgage and caveat lapsing notices by state
• Paying out a second mortgage early and a second mortgage on an investment property

What does a lender look at before approving a second mortgage?

A bank’s checklist leans on financial statements and serviceability; business.gov.au’s own list of what lenders ask for includes business plans, financial reports and forecasts. A private second-mortgage lender cares about some of that, but three things carry most of the weight:

1. Equity. Is there enough room behind the first mortgage, within the lending limit?
2. The first mortgage. Is it up to date, and what does its contract say about further security?
3. The exit. How will this loan be repaid: a sale, a refinance, a contract payment, a tax refund?

Credit history is part of the picture but not the gate. Bad credit, defaults and ATO debt are considered, and none of them is disqualifying on its own. Companies, trusts and sole traders can all borrow, including start-ups, with no minimum trading period or turnover. Our full lending criteria are set out in one place.

If that sounds like your position, a 60-second check will tell you where you stand before anyone looks at your credit file.

How do repayments, terms and exits work?

Terms are open: no minimum, no maximum, and you can repay early at any time without a penalty. Interest can be capitalised for up to 6 months, so there are no repayments in that period and the business keeps its cash for the job it borrowed for. The balance grows while interest is capitalised, so the exit needs to cover it.

Because a second mortgage sits behind another lender, it is designed to be temporary. Most end one of three ways: the property (or another asset) is sold, the whole debt is refinanced into one loan, or money owed to the business arrives and pays it out. Our guide to exit strategies for a short-term mortgage shows how to make that plan believable.

Who is a second mortgage right for, and who should look elsewhere?

It tends to suit owners with real equity, a defined need and a clear end date. It’s the wrong tool when:

• the purpose is personal. These loans are for business purposes only. ASIC notes the National Credit Code covers credit for “personal, domestic or household purposes” and certain residential investment lending, which is a different market from the business lending on this site;
• there’s no realistic exit, because a short-term loan with nowhere to go becomes an expensive long-term one;
• a cheaper option will arrive in time, such as a bank top-up with a comfortable deadline;
• the equity is thin, in which case a first mortgage over another property or multiple properties as security may work better.

Illustrative example: a Newcastle engineering firm owns its workshop, worth around $1.6m, with $700k owing to its bank. It lands a contract that needs $300k of steel paid up front. Illustrative: at a 70% commercial band, total lending could reach $1.12m, leaving $420k of room behind the bank. A $300k second mortgage with interest capitalised means no repayments while the job runs; the contract’s progress payments clear the loan and the bank facility is never touched.

Ready to see what your property can do?

Whichever page above matches your situation, the next step is the same. The enquiry takes about 60 seconds and asks about the property, what’s owing on it, the amount you need and how it will be repaid.

There’s no credit check just for asking, so it won’t leave a mark on your credit file, and your details aren’t shopped around to a list of funders: the enquiry comes to us as the direct lender, and a secured-lending specialist reads it and calls you. The more accurate your figures, especially the balance on the first mortgage, the faster we can give you a straight answer.

Check what your property can unlock →