Second mortgage business loans: tapping equity behind your existing lender

You’ve got a home loan you’re happy with. Maybe it’s on a rate you fixed at the right time, maybe it’s with a bank that’s treated you well for fifteen years. Now the business needs $200k, and every option seems to start with “refinance”. A second mortgage is the way around that: the existing loan stays put, and a new lender takes the next spot on the title.

How a second mortgage sits on the title

Think of the property’s value as a pie that lenders cut in order. The first mortgagee takes its slice first. The second mortgagee’s slice comes from what remains. Because of that ordering (which, for registered mortgages, generally follows the date of registration) the second lender carries more risk, so it lends less against the same property and charges more for each dollar.

That trade is often worth it. You keep your first loan’s terms on the big balance and pay second-mortgage pricing only on the new amount.

Worked example: finding your headroom

Here’s an illustration. The numbers are hypothetical, and every lender sets its own maximum.

• Property value: $1.2m
• Existing first mortgage balance: $600k
• Suppose the second-mortgage lender caps combined lending at 70% of value: $1.2m × 70% = $840k
• Headroom: $840k − $600k = $240k, before fees and any interest the lender requires up front

If the business needs $200k, it fits. If it needs $300k, either a lender with a higher combined cap, a different property, or a mix of finance would be needed. Plug your own figures into our second mortgage calculator.

Why your first loan’s limit can matter more than its balance

This one surprises people. Picture a first loan showing $600k owing against an $800k limit, because you’ve paid ahead and the extra sits in redraw. A second lender may worry that the first lender could advance that $200k again, and that those funds could rank ahead of the second mortgage. Many second-ranking lenders therefore calculate headroom on the first loan’s limit, or ask for the redraw to be reduced or a priority arrangement to be put in place. Bring your first loan’s limit, balance and available redraw to the conversation; it saves an awkward revision later.

Does your first lender have to agree?

There are two separate questions here.

The registry. In New South Wales, the CoRD regime, short for control of the right to deal (under which the first mortgagee effectively had to consent before other dealings were registered) was abolished on 11 October 2021, along with paper certificates of title. At registry level, a second mortgage there no longer needs the first lender’s sign-off. Other states have their own electronic lodgement arrangements, so the conveyancer or lender’s solicitor will confirm what applies to your property.

Your contract. Many home and business loan contracts prohibit further mortgages without the lender’s consent, or treat them as a default. That’s a contractual matter, not a registry one, and it applies even where the registry wouldn’t stop the dealing. Read the “further security” or “negative pledge” clauses in your existing loan, or simply ask. Some first lenders agree readily; a few will offer you a top-up instead, which can be cheaper.

Got equity behind a home loan you’d rather not disturb? Run it past our team. Asking is free, and no credit enquiry is recorded against you.

What do second mortgage lenders assess?

Factor	What they’re looking for
Combined loan-to-value	Both debts added together and divided by the valuation, inside the lender’s ceiling
The first mortgage	Balance, limit, redraw, repayment history, and any contractual restrictions
Purpose	Genuinely for the business: tax debt, stock, a purchase, working capital, refinancing business debts
Repayment plan	Cash flow for longer terms; a defined exit such as a sale or refinance for short ones
The property	Type, location and saleability; houses in established suburbs are simplest
Borrowers and guarantors	ID, credit history (weighed against the equity), company or trust structure

What does a second mortgage cost?

Per dollar borrowed, it’s dearer than first-ranking money, because of the ranking. Expect an establishment fee, the lender’s legal and registration costs, a valuation, and interest that may be paid monthly, prepaid or capitalised depending on the lender. Some short-term lenders also charge a discharge fee.

What matters is the total in dollars, compared honestly with the alternative. If the realistic alternative is refinancing a $600k home loan onto business-loan pricing, a $200k second mortgage often wins easily. If your first loan is small, refinancing might win instead; the crossover point is explained in first vs second mortgage business loans.

When should you skip a second mortgage?

• When you need money today and the term is only a few weeks: a caveat loan is usually quicker to put in place. See caveat loan vs second mortgage.
• When your first lender will simply increase your existing loan on good terms. Banks often price a top-up very sharply, so ask them first.
• When there’s no realistic way to repay. Equity can buy a business breathing room, but it can’t cure ongoing losses.

Who typically uses one?

Business owners clearing an ATO debt (see ATO debt business loans), buying out a partner, funding a fit-out, paying out expensive online loans, or covering a large order. Many were declined by a bank because of a short trading history, late tax returns or a credit blemish, and found that a non-bank or private second-mortgage lender looked at the equity first. Our partner lender EquityTap is one example of a private lender that writes short-term second mortgages for business purposes.

Applying

1. Get your first loan’s balance, limit and redraw figures.
2. Check the existing contract for restrictions on further security.
3. Estimate value and headroom with the calculator above.
4. Prepare ID, ABN, recent BAS or bank statements, and a one-paragraph explanation of purpose and exit.
5. Valuation, offer, signing and registration of the second mortgage, then funds.

Keeping the loan you like, and getting the funds you need

The appeal of a second mortgage is simple: you protect a good arrangement while still unlocking equity for the business. Getting it right comes down to the headroom maths and the fine print on your first loan.

We can help with both. Our online form is around a minute’s effort, and enquiring has zero impact on your credit rating. Your details aren’t bulk-referred anywhere, so no surprise calls from lenders you’ve never heard of; a specialist on our team reviews your situation and gets in touch personally. Include the first loan’s balance and limit plus a realistic property value, and within one conversation you’ll know whether second-ranking finance stacks up.

Check your second mortgage headroom →