Using Home Equity to Buy a Business in Australia: What the Banks Won't Tell You

Using home equity to buy a business in Australia means borrowing against the value you've built up in your home — or investment property — to fund the purchase of a business. The loan is secured against your property, not the business itself, which changes how banks assess the risk, how the interest is treated for tax, and what happens if the business doesn't work out. For Australian buyers in the $150K–$600K acquisition range, it's one of the most common ways to bridge the gap between what a bank will lend against the business and what you actually need to settle.

Most of the content you'll find about home equity talks about using it to buy investment properties or renovate your kitchen. Using it to buy a business is a different animal — different risk profile, different tax treatment, different lending criteria.

What Home Equity Is and How Much You Can Access

Home equity is the difference between what your property is worth and what you owe on it. If your home is worth $800,000 and your mortgage balance is $300,000, you have $500,000 in equity on paper.

The part you can actually use is different. Most Australian lenders will lend up to 80% of the property's value (this is called the loan-to-value ratio, or LVR). So the usable equity in that example is roughly:

$800,000 × 0.8 − $300,000 = $340,000

That's the practical ceiling before you hit lender's mortgage insurance territory. Some specialist lenders (and some deals) will go higher, but 80% LVR is the rule of thumb you should plan around.

This means you don't need a paid-off property to use this strategy. If you bought a home five years ago and values have risen — as they have in most Australian capital cities and many regional areas — you may have more accessible equity than you think.

How to Access Equity: Three Structures

There are three main ways to pull equity out of your property for a business purchase.

1. Cash-out refinance. You refinance your existing mortgage to a higher amount and take the difference as cash. If you're on a poor rate anyway, this can be a chance to tidy up your financing at the same time. Downside: you're locking the equity into the new loan structure and often paying break costs if you have a fixed rate.

2. Line of credit (LOC). A revolving credit facility secured against your property, up to an approved limit. You draw down what you need, when you need it, and interest is charged only on what's drawn. This is useful if your deal is staged — paying a deposit now and the balance at settlement, for example. The flexibility is good (some brokers I know swear by this structure for business purchases specifically), but you need discipline not to treat it as an ATM.

3. Redraw on existing mortgage. If you've made extra repayments into an offset or redraw account, some lenders let you pull that money back out. The cleanest structure for most people is keeping this separate from the business loan.

The right structure depends on your deal timeline, your current lender, and — critically — the tax situation. More on that below.

What Banks Actually Check

Here's where it gets more complex than the bank's website suggests. Using home equity to buy a business isn't just a mortgage application. The lender wants to know you can service the total debt — which means they'll look at both your existing mortgage repayments and the new drawdown.

For a purchase in the $200K–$400K range, typical lender checks include:

Your income: Serviceability calculators add a buffer (usually 2–3% above the actual rate) to stress-test repayments. If you're leaving employment to run the business, this is a harder conversation.
The business's cash flow: Even if the loan is secured against your home, most banks want to see that the business generates enough cash to service the debt. A two-year track record of financials is standard. One-year or newly acquired businesses are harder.
LVR: As above — most lenders cap usable equity at 80% LVR without LMI.
Your overall debt position: Existing personal loans, credit cards, and other liabilities all count in the serviceability calculation.

If you're buying while still employed, this is usually manageable. If you're quitting to run the business, the bank will likely want the business cash flow to cover the repayments from day one — which is why how to finance buying a small business matters early in your planning, not at the end.

Specialist business purchase lenders often have more flexible criteria than the major banks — worth talking to a broker who works specifically with business acquisitions, not just residential mortgages.

This is covered in depth in Module 6 of the Playbook.

The Tax Treatment (Where Most Buyers Get Confused)

This is the part the banks definitely don't explain well. The deductibility of interest on a loan secured against your home depends on how the money is used — not what the security is.

If you use a home equity loan to buy a business that you'll earn income from, the interest is generally deductible as a business expense. The ATO looks at the purpose of the borrowed funds, not the collateral. So the fact that your house is the security doesn't make the interest a personal (non-deductible) expense.

There's a catch: you need to keep the loan purpose clean. If you use the same loan to pay for the business purchase and also take a family holiday or pay down your mortgage, you've created a mixed-purpose loan — and apportioning the deductible vs non-deductible interest becomes a mess. The smart approach is a separate loan account dedicated entirely to the business acquisition.

One owner I spoke to last year had refinanced his mortgage to pull out $180,000 for a landscaping business purchase. He'd mixed it into his existing offset account with his savings. His accountant spent the better part of two months untangling which interest was deductible and which wasn't. Avoidable problem. Get your accountant involved before you draw anything down.

The trust structure you buy into matters here too — interest deductibility works differently depending on whether you're buying as an individual, through a company, or through a trust.

Combining Home Equity With Other Financing

Most deals in the sub-$600K range don't get funded from a single source. The most common structure I see is:

Home equity covers the equity contribution — think of it as your 20–30% deposit
A business bank loan funds the remaining 60–70%, secured against the business assets (debtors, equipment, goodwill — whatever the lender accepts)
Vendor finance fills any remaining gap — the seller holds a note for 10–20% of the price, repaid from business cash flow over 1–3 years

This stacking approach reduces the amount you need from any single source and can often get deals across the line that a single-lender approach can't. The bank sees you have real equity in the deal (they hate 100% debt-funded acquisitions), the seller gets some certainty of payment, and you're not over-leveraging against your home.

The gotcha is that multiple lenders means multiple sets of covenants, reporting obligations, and personal guarantee requirements. You need a lawyer who's done this before.

Want the full breakdown of how these financing layers fit together? Grab the free Deal Structure Comparison Framework — it maps out the pros, cons, and risk profile of each approach so you can make an informed decision before you talk to a lender.

The Risks Worth Taking Seriously

The elephant in the room: if the business fails and you can't service the loan, the lender can come after your home. This is not the same risk profile as borrowing against the business itself (where the lender can seize business assets but your home is protected). You are putting your family home on the line.

I'm not saying don't do it. I've done it, and I'd do it again under the right circumstances. But I've also seen buyers go into this without fully internalising the risk — treating it like a mortgage application for a better kitchen rather than a genuine bet on a business they've done real due diligence on.

A few practical mitigations:

Don't fund the entire purchase with home equity. The vendor finance / bank loan stack above exists for good reasons.
Run the serviceability numbers at interest rates 3% higher than current. If that breaks you, the deal is too big or too leveraged.
Have a six-month personal cash buffer before you close. The first few months of owning a business always have surprises.
Understand the worst case clearly: if you had to sell the business and wind up the loan, what's the hole? Can you survive it?

FAQ

Can you use equity in your house to buy a business?

Yes. Using home equity to fund a business purchase is legal and common in Australia. The loan is secured against your property, and interest is generally tax-deductible if the money is used for a business that earns income. Keep the loan purpose clean and get accountant advice before drawing down.

What is the maximum equity I can access from my home in Australia?

Most Australian lenders allow you to borrow up to 80% of your property's value. Subtract your existing mortgage balance to find your usable equity. Going above 80% LVR usually requires lender's mortgage insurance and tighter lending criteria.

What should you not use a home equity loan for?

Don't use home equity to fund a business you haven't properly assessed — the risk is your house. Also avoid mixing the loan with personal expenses (it kills your tax deduction). And don't use it if you're already at the limit of your serviceability; one bad quarter in a new business can spiral quickly.

Do I need to tell my lender I'm using equity to buy a business?

Yes. Most lenders require you to disclose the purpose of the funds, and using equity for a business purchase is a different risk assessment than using it for a property deposit. Going through a broker who specialises in business purchase finance is worth the cost of their time.

The Bottom Line

Home equity is a legitimate and often efficient way to fund a business acquisition in Australia — particularly for buyers who have built up equity over the last decade of property value growth. The mechanics are straightforward; the risks and tax treatment require more care.

Do the numbers properly before you talk to a bank. Understand the serviceability position with a buffer. Use separate loan accounts. Get an accountant and a lawyer who have seen these deals before. And make sure you've done real work on the business before you put your home behind it.

For more on financing strategy and deal structure, subscribe to The Leveraged Worker — I write about the mechanics of funding, structuring, and running business acquisitions in Australia, from someone who's actually doing it.

This article is general information only and not financial or legal advice. Speak to a qualified adviser before making financing decisions.