This article explains how Australians can use home equity to invest in a way that actually supports their long-term plans instead of quietly increasing their risk. It breaks down what equity and usable equity really are, how lenders think about LVRs, cross-collateralisation and serviceability, and the common ways people tap equity, from investment property and shares through to renovations. It draws a clear line between good reasons to access equity, such as strategic investments, sensible renos and restructuring bad debt with genuine behaviour change, and dangerous reasons, such as funding lifestyle, plugging overspending and “Hail Mary” investing. You’ll get a step-by-step Summit framework for deciding whether to use equity at all, how much is sensible, and how to structure the loans with your broker and accountant. It finishes with a “Summit Equity Safety Checklist” so you can quickly see whether using equity is likely to help you, or whether staying put and building buffers is the wiser move for now. This is general information only, not personal financial advice.

Using Equity to Invest: How to Do It Safely (and When Not To)

At some point after buying a home, you will hear a line like, “You’re sitting on a goldmine. Why not use your equity to invest?” On paper, it sounds perfectly logical. Your property has gone up in value, you can borrow against that increase, you use it as a deposit for an investment property or other assets and, in theory, your money “works harder” while you carry on with life.

Sometimes, that story plays out beautifully. Other times, it quietly turns into higher repayments, more risk, more pressure, three loans and no buffer. The difference is not luck. It is whether equity is used as a calm, deliberate tool inside a bigger plan, or as a shortcut when you feel behind.

What follows is a way to think about using equity that fits a family-first, long-term approach. It is general information only. Before acting on anything here, talk to a licensed adviser, broker and accountant who understands your situation.

Understanding equity and usable equity

It helps to start with clear definitions. At its simplest, equity is just the difference between what a property is worth and what you owe on it. If your home is worth nine hundred thousand dollars and your loan balance is five hundred thousand, your simple equity is four hundred thousand. That is the gap between value and debt.

You cannot, and generally should not, borrow all of that. Lenders and regulators want you to keep some “skin in the game”, so they only allow borrowing up to a certain percentage of the property’s value, known as the loan-to-value ratio, or LVR. A common mental anchor is around eighty per cent LVR before Lenders Mortgage Insurance becomes a factor, although there are nuances.

To work out usable equity, you take the property value, multiply it by the LVR the lender is comfortable with, and subtract your current loan. Using the earlier example, if your home is worth nine hundred thousand and the lender is happy with an eighty per cent LVR, that gives a maximum lending amount of seven hundred and twenty thousand. If you currently owe five hundred thousand, the ballpark usable equity is about two hundred and twenty thousand. That is the amount the lender might consider letting you access, subject to income and serviceability checks.

You might then use some of that as a deposit and costs for an investment property, as capital for other investments, or as funds for renovations. The key question is not, “How much can we get?” but, “How much should we safely use, if any?”

How banks think about equity – and how you should

When you apply to access equity, banks are not only looking at your property value. They are also looking at the LVR they are comfortable with, your serviceability, which is your income and living costs relative to all your debts, the structure of your loans and your credit history.

If you use equity to invest, you will usually end up with a separate loan split that represents the equity you have drawn, plus a new loan secured against the new investment property if you are buying one. From the lender’s point of view, the questions sound like, “If these clients take on this extra debt, are they still likely to repay us if rates rise?” and “Is the total exposure across their home and investments within our risk appetite?”

From a Summit perspective, your internal questions need to be even tougher. You want to know whether, if you take on this extra debt and things are a little worse than expected, you can still sleep at night and live your life. That means thinking about higher rates, lower rents and the possibility of income changes, not just the current snapshot.

The main ways people use equity

In practice, there are a few common paths people take once they tap equity.

One is using equity to buy an investment property. In that scenario, you might draw, say, one hundred and fifty to two hundred thousand dollars from your home, and use it as your deposit plus stamp duty and other buying costs. You then take out a new loan against the investment property for the remainder of the purchase price. You end up with your original home loan, an equity loan split still secured by your home, and an investment loan secured by the new property. Done thoughtfully, this can be a powerful way to grow your asset base and move into investing without having to save a full cash deposit again. Done carelessly, it can leave you with significantly higher repayments, very little buffer and a structure that only works if the market and your income behave perfectly.

Another path is using equity to invest in shares, exchange-traded funds or managed funds. Some people prefer the idea of a more diversified portfolio and use an equity loan as the funding source. This is often described as geared investing, or borrowing to invest. It can work, but sharemarkets move faster in price than property. The ups and downs show up in your account balance more abruptly, and using debt to buy volatile assets means you are amplifying both the upside and the downside.

A third common use is tapping equity to renovate or undertake value-add projects. Here, the borrowed funds are used to upgrade kitchens and bathrooms, improve outdoor areas, add bedrooms or extra living spaces, or reconfigure layouts. If you have a clear plan, a sensible budget and an understanding of local values, this can make your home more liveable and, in some cases, increase value and rental potential. Without that discipline, renovations can easily drift over budget and schedule, deliver less uplift than you hoped, and turn into emotional projects rather than strategic ones.

Good reasons and dangerous reasons to use equity

The specific use matters less than the underlying motivation. Two people can make the same move for very different reasons. One is strengthening their position; the other is quietly hollowing theirs out.

Stronger reasons for accessing equity tend to involve strategic, long-term investing where you understand the asset, have stress-tested the cashflow, and are not relying on everything going right to stay afloat. Sensible renovations can also fit here if there is a clear plan, scope and budget, you have thought about the risk of overcapitalising and you can cope even if the value uplift is modest. Restructuring high-interest bad debt into a lower-rate loan can be a positive step if it is combined with genuine behaviour change, such as closing old facilities and putting guardrails in place to avoid rebuilding the same balances.

On the other side are reasons that almost always spell trouble. Using equity to fund lifestyle is a big one. Holidays, cars, toys, weddings and gaps in day-to-day spending can all feel justified in the moment, especially when the house has grown in value and the equity feels abstract. The reality is that you are turning short-term lifestyle into long-term debt and asking your future self to pay for it, often with interest over many years.

Another danger zone is using equity to plug ongoing overspending, such as wiping out credit cards without changing the habits that created them. The balance sheet looks cleaner for a while, but if the behaviour stays the same, the debts simply climb back up on top of a bigger mortgage. “Hail Mary” investing is equally risky: borrowing against the family home to chase the latest hot tip, speculative market or too-good-to-be-true return because you feel behind and want to catch up quickly. These moves usually increase pressure rather than reducing it.

Key risks to understand before you touch equity

Beyond the obvious point that more borrowing means more debt, using equity changes the shape of your risk in a few important ways.

The first is higher total repayments and less slack in your monthly budget. Any extra borrowing adds to your overall repayment load and makes you more sensitive to interest rate changes. Before drawing equity, it is worth asking yourself, quite bluntly, what would happen if repayments on all your loans rose in line with a two or three percentage point increase across the board. If you struggle to see how you would cope, you may already be at the edge.

The second is that more of your life becomes tied to markets you cannot control. Using equity to buy more property concentrates your exposure to property cycles. Using it to buy shares concentrates your exposure to equity markets. In both cases, you are still relying on your income to service the debt. Leverage is part of many property strategies, but it needs to be used with respect and a clear appreciation of downside scenarios.

The third risk is structural. Some banks or brokers will, by default, tie multiple properties and loans together in ways that can make it difficult to sell one property without affecting others, or to move lenders later. This is sometimes called cross-collateralisation. It is not always evil, but it is usually less flexible than having separate loans against separate properties, with clear splits for home versus investment purposes, and for original home debt versus equity-drawn investment debt. A good broker and accountant can help you avoid messy, all-in-one structures unless there is a very deliberate reason.

The final risk is emotional. More loans, more moving parts and more complexity mean there is more to think about, and more scope for worry, especially if you are already near your stress threshold. Using equity is only worth it if, on balance, you can still sleep well, live your life and not feel like you have to track every news headline and rate move to feel safe. Knowing your own temperament is part of the equation.

Principles for using equity wisely

A family-first, Summit-style approach to equity is less about clever tricks and more about simple guardrails.

One helpful principle is to resist the temptation to push right up to the maximum LVR just because a lender will allow it. Instead of asking how far you can stretch, it is better to ask what LVR lets you sleep at night, keep a proper buffer and still have options if life throws you a curveball. For many families, that means keeping the home itself at a relatively conservative LVR, even if investment properties operate at higher levels, and deliberately leaving some equity unused as a shock absorber.

Another principle is to keep home and investment loans clearly separated. In practice, that means distinct loan splits for home debt and for investment debt, rather than one big blended facility. Clear separation makes it easier for your accountant to work out which interest is tax-deductible, and easier for you to see at a glance how much of your debt belongs to the roof over your head and how much is tied to investments. It also makes it simpler to decide which loans you want to pay down faster.

Interest-only loans and offset accounts can be part of a sensible strategy if they are used deliberately. Some investors, under advice, choose interest-only terms on investment loans for a period to maximise cashflow and flexibility while focusing principal repayments on the home loan. Offset accounts can then be used to park surplus cash so it reduces interest without permanently locking those funds into a loan. None of these tools are magic. They are only as wise as the plan sitting behind them.

Finally, there is value in stress-testing the whole portfolio, not just the new loan. Before using equity, it is worth looking at all loans together, including your home, any existing investments and the proposed new one, and running them through a tougher environment: higher interest rates, lower rent and some disruption to income. If the plan only works in perfect conditions, it is not robust enough.

A practical framework for deciding whether to use equity

To bring this back to something you can use in a real conversation at the kitchen table, it can help to work through a simple sequence.

The first step is to map your current position honestly. That means noting a realistic range for your home’s value, your current home loan balance and repayments, any other property values and loans, your combined after-tax income and your current cash buffer in terms of months of living expenses. You want a clear baseline before you start moving pieces around.

The second step is to define the purpose clearly. Ask yourselves what exactly you would use the equity for, why that, and why now. Then ask how this step fits into your ten to twenty year plan and how it helps you get closer to the life you want. If the answer is vague, such as “we just want to invest in something”, or driven by emotion, such as “we feel behind and need to catch up”, it is a sign to slow down rather than a green light.

The third step is to bring your accountant into the conversation before anything is locked in with a lender. Sit down with them and outline your idea for using equity, and ask how it should be structured from a tax and risk perspective. Once you have that guidance, take it back to your broker and ask for help setting up the loans in line with that advice. Good brokers welcome that collaboration.

The fourth step is to ask your broker for a few concrete scenarios in numbers. One scenario might be staying as you are with no equity release. Another might be a conservative equity release and investment. A third might be a more aggressive version that shows you the upper edge of the risk. For each scenario, look at loan amounts and structures, repayments now and at higher rates, remaining buffers and LVRs on each property. Then, together, ask which scenario feels like calm, deliberate progress and which feel like you are pushing your luck.

The final step is to step away for a moment, then check your gut. Give it a couple of days, and then imagine yourselves a year down the track living inside your preferred scenario. Notice whether you feel more relaxed or more tense, whether you feel like you are building, or scrambling. If the only way you can make it feel okay is by assuming perfect conditions and perfect behaviour, that is useful information in itself.

The Summit Equity Safety Checklist

To make all of this more practical, it can help to hold a potential equity move up against a few simple tests.

It is more likely to be a good time to use equity if your home is sitting at a conservative LVR and you are not pushing it to the maximum, you will still have several months of essential expenses in cash after any equity draw, the purpose is specific and strategic rather than lifestyle-driven, you have spoken to both an accountant and a broker about structure, you have stress-tested all loans at higher interest rates, you understand that repayments will rise and have a clear plan for covering them, and you can explain, in a sentence or two, how this step supports your ten to twenty year plan.

It is more likely to be a “not yet” if the main driver is a feeling of being behind or trying to catch up quickly, you are already stretched with your current repayments, using equity would leave you with minimal or no buffer, the purpose is vague or centred on lifestyle, your home LVR would jump to a level that makes you nervous, you have not properly run numbers at higher rates, or you have not involved an accountant in the discussion about structure. If that is where you are, it is not failure. It is wisdom. The next step is usually to build more buffer, pay down existing debt and stabilise your cashflow, then revisit equity from a stronger position.

Bringing it all together

Using equity to invest is neither automatically brilliant nor automatically reckless. It is a lever. In the right context, it can accelerate your progress. In the wrong context, it can magnify your risk. The difference lies in why you are doing it, how it is structured, how strong your buffers are, how honestly you have stress-tested your plan and whether it fits the broader story of your life rather than just this year’s goals.

A family-first approach asks whether using equity in this way strengthens your long-term position, still lets you sleep at night and leaves you room to handle life happening. If the answer is yes and the numbers stack up, equity can be a powerful next step. If the answer is no, the bravest and wisest move may be to leave the equity where it is for now, keep building your base and come back to it later with more stability, more options and a calmer head.

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