Refinancing to Access Equity: What Not to Overlook

How refinancing your home can unlock capital for your next investment property, and what experienced buyers consider before they apply.

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Using equity from your home to fund an investment property is one of the more common pathways to building a portfolio.

The process itself is straightforward: you refinance your existing mortgage to release the equity that has built up in your property, and you use those funds as a deposit or to cover costs on the next purchase. But the structure you choose, the lender you move to, and the timing of the application all shape whether the outcome supports your long-term position or creates friction down the line.

How Equity Release Through Refinancing Works

When you refinance to access equity, you are increasing your loan amount based on the current value of your property. Lenders typically allow you to borrow up to 80% of your property's value without requiring lenders mortgage insurance, though some will lend higher with additional cost. The difference between what you owe and what you can borrow is the equity you can access.

Consider a property owner in Albert Park whose home has appreciated steadily over the years. They owe $450,000 on a property now valued at $1.2 million. At 80% of the current value, they could borrow up to $960,000. After repaying the existing $450,000, they would have access to $510,000 in usable equity. That amount can be used as a deposit on an investment property, with the balance retained in an offset or redraw depending on the loan structure.

The application itself is similar to a standard refinance, though lenders will assess your ability to service both the increased home loan and any new borrowing tied to the investment. This is where income, existing debts, and the rental yield on the intended property all come into play.

Structuring the Loan to Preserve Tax Efficiency

How you structure the refinance matters as much as the amount you release. If you simply increase your existing home loan and transfer funds to buy an investment property, the interest on that increased portion becomes deductible. But if those funds sit in an offset account attached to your owner-occupied loan, or if they are used for non-investment purposes before the purchase, the tax treatment becomes less clear.

The approach that holds up under scrutiny is to split the loans at the point of refinance. Your original home loan remains quarantined, and the equity release is drawn down into a separate split that is used exclusively for the investment. That way, the interest on the investment portion is clearly deductible, and the interest on your home loan is not.

This also gives you the option to structure each split differently. You might keep your home loan on a variable rate with an offset account to manage repayments, while fixing part of the investment loan if you want certainty on serviceability for the next few years. The flexibility to adjust one without affecting the other becomes useful when circumstances change.

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What Lenders Look at When You Apply

Lenders assess equity release applications based on your ability to service the total debt, not just the new portion. That means they will factor in the increased repayment on your home loan, plus the repayment on the new investment loan, minus any rental income the investment property is expected to generate. Most lenders will shade the rental income by 20% to account for vacancy and costs, so the full amount does not count toward your serviceability.

If your income has not changed significantly since your last application, or if you have taken on additional commitments such as car finance or business expenses, the amount you can access may be lower than the equity calculation suggests. Running a loan health check before you apply helps identify whether your current lender will support the increase, or whether you need to move to a lender with more favourable serviceability settings.

In our experience, applicants who have recently come off a fixed rate period and are now on a higher variable rate may find their serviceability constrained, even if their actual repayments have not changed. Lenders assess at the current rate plus a buffer, so a small shift in the variable rate can reduce borrowing capacity more than expected.

Choosing Between a Cash-Out Refinance or a Line of Credit

A cash-out refinance gives you a lump sum at settlement, which you can then deploy as needed. A line of credit, by contrast, allows you to draw down equity as required, paying interest only on the amount you have actually used. Both structures can work, but they suit different scenarios.

If you have already identified the investment property and know exactly how much you need for the deposit and settlement costs, a cash-out refinance is usually the more straightforward option. You refinance once, the funds are available at settlement, and you move forward with the purchase.

If you are still searching for the right property, or if you are planning to make multiple purchases over the next year or two, a line of credit can offer more control. You are not paying interest on funds you have not yet used, and you can draw down in stages as opportunities arise. The trade-off is that lines of credit are less common than they used to be, and the lenders that still offer them tend to price them at a margin above standard variable rates.

For buyers in areas like Albert Park, where the market moves quickly and off-market opportunities are not uncommon, having access to pre-approved equity through a line of credit can make the difference between securing a property and missing out.

How the Valuation Affects What You Can Access

The amount of equity you can release depends on the lender's valuation, not your own estimate or a recent sales price in the area. Lenders use their own panel valuers, and those valuations can vary depending on comparable sales, property condition, and the valuer's interpretation of the local market.

In Albert Park, where heritage overlays and planning restrictions affect individual properties differently, two homes on the same street can receive different valuations based on whether recent renovations have been completed to a high standard or whether the property is still in original condition. If the valuation comes in lower than expected, the amount of equity you can access reduces accordingly.

You can request a revaluation if you believe the initial assessment does not reflect the property's true value, but that process adds time and does not always result in a higher figure. If you are working to a tight settlement timeline on the investment property, a conservative equity estimate at the outset helps avoid delays.

When Refinancing to Access Equity Makes Sense and When It Does Not

Refinancing to release equity works when your property has appreciated, your income supports the increased debt, and the investment you are planning will generate a return that justifies the additional interest cost. It does not work as a solution if your current loan is already stretched, if your income has declined, or if the investment property you are considering has weak rental yield or limited capital growth prospects.

The other factor to consider is the cost of the refinance itself. Discharge fees from your current lender, application fees with the new lender, valuation costs, and legal fees can add up to several thousand dollars. If you are only accessing a small amount of equity, or if you are likely to refinance again in the near term, those costs can erode the benefit.

In some cases, it makes more sense to approach your existing lender for a top-up rather than refinancing to a new lender. The approval process is faster, the costs are lower, and you avoid the disruption of moving your entire loan. The downside is that you may not have access to the same range of features or rates that a new lender could offer, particularly if your current lender has tightened serviceability or increased rates since your original application.

Timing the Refinance Around the Investment Purchase

The timing of your refinance matters. If you refinance too early, you may have funds sitting idle in an offset account, which is not a problem in itself but does mean you are carrying a larger loan balance before the investment is generating any return. If you refinance too late, you may not have the funds available in time for settlement on the investment property.

The approach that tends to work is to start the refinance process once you have a clear sense of your budget and timeline for the investment purchase, but before you have signed a contract. That gives you enough time to get the valuation done, receive formal approval, and have the funds available when you need them. Most lenders can settle a refinance within four to six weeks if the application is straightforward, though that timeline can stretch if there are complications with the valuation or serviceability.

If you are buying at auction or in a competitive market where settlement periods are short, having pre-approval in place before you start bidding removes one layer of uncertainty. You know exactly how much equity you can access, and you know the funds will be available when the contract goes unconditional.

Refinancing to access equity is not a decision that needs to be rushed, but it does need to be considered in the context of your broader financial position and the opportunities in front of you. If the numbers support it and the structure is sound, it can be one of the more reliable ways to move from one property to multiple without needing to save a second deposit from scratch.

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Frequently Asked Questions

How much equity can I access when refinancing my home?

Most lenders allow you to borrow up to 80% of your property's current value without lenders mortgage insurance. The accessible equity is the difference between 80% of the valuation and your existing loan balance.

Do I need to refinance to a new lender to access equity?

Not necessarily. You can approach your existing lender for a loan top-up, which is often faster and cheaper than refinancing to a new lender. However, a new lender may offer more favourable rates or features depending on your circumstances.

How should I structure the loan to keep the interest tax deductible?

Split the loan at the point of refinance so the equity release sits in a separate account used exclusively for the investment. This keeps the interest on the investment portion clearly deductible and avoids mixing purposes.

How long does it take to refinance and access equity?

Most refinances settle within four to six weeks if the application is straightforward. Timing depends on the valuation, lender processing, and whether there are any serviceability issues that need to be resolved.

What happens if the property valuation comes in lower than expected?

A lower valuation reduces the amount of equity you can access. You can request a revaluation, but that adds time and does not guarantee a higher figure, so it is worth estimating conservatively at the outset.


Ready to get started?

Book a chat with a Finance Broker at Summit Finance Group today.