Smart Ways to Use Your Home Equity for a Second Property

Can You Refinance to Access Equity for a Second Property?

You can refinance your current home loan to access built-up equity and use those funds as a deposit for a second property. Lenders will assess your borrowing capacity across both loans, including whether you can service the new debt while covering holding costs on the investment property.

Consider someone who owns a property in Doncaster with a current value that has grown significantly since purchase. They owe $350,000 on the loan, and the property is now valued higher, creating usable equity. Rather than saving for years to build a deposit for an investment property, they refinance to access a portion of that equity. The lender will typically allow borrowing up to 80% of the property value without requiring lenders mortgage insurance, though some will go to 90% or 95% with LMI added. The amount available depends on the gap between what you owe and what you can borrow against the current valuation.

When you refinance to pull out equity, you are increasing your loan amount on the existing property. That additional borrowing becomes available as cash, which you can then use as a deposit on the second property. The challenge is not just accessing the equity, but proving to the lender that you can service two loans simultaneously, particularly if the second property will be tenanted and rental income is part of the assessment.

How Lenders Assess Borrowing Capacity Across Two Properties

Lenders calculate serviceability by combining your existing loan repayments, the proposed new loan repayments, and all other commitments, then comparing that total to your household income. Rental income from the investment property is included, but lenders typically only count 80% of the expected rent to account for vacancy periods and maintenance costs.

If the Doncaster property owner earns a combined household income that comfortably covers the increased loan on their home, they then need to show they can also service a loan on an investment property in an area like Ringwood or Croydon. The lender will assess the likely rental yield based on comparable properties in the target suburb. A two-bedroom unit in Croydon might generate rental income that offsets part of the loan repayment, but the borrower still needs to demonstrate they can cover the shortfall, plus rates, insurance, and other holding costs.

Some lenders are more conservative with how they treat rental income, particularly if the property has not yet been tenanted. Others will accept a rental appraisal from a licensed property manager as part of the application. Your borrowing capacity may also be affected by whether you plan to keep your current property as your principal place of residence or convert it to an investment property when you purchase the second one. The latter scenario can sometimes increase your taxable deductions but may also change how the lender views your loan structure.

Structuring Your Refinance to Keep Deductions Clear

When you refinance to access equity, the purpose of the additional borrowing determines whether the interest is tax-deductible. If you borrow an extra $100,000 against your home to use as a deposit on an investment property, the interest on that $100,000 is generally deductible because it was used for investment purposes. The interest on the remaining balance, which relates to your home, is not deductible unless your home is also an investment property.

To keep this clear for tax purposes, many borrowers split their loan into two separate accounts at the point of refinancing. One account holds the original home loan balance, and the other holds the equity drawdown used for the investment. This separation makes it straightforward to track which portion of your interest expense is deductible each year. Without this split, you may need to apportion interest manually, and that creates unnecessary complexity at tax time.

If you are working with a broker who understands investment loans, they will typically recommend this structure upfront. It also gives you flexibility later if you want to pay down the non-deductible portion more aggressively or if you decide to sell one property and retain the other.

What Happens If Your Equity Position Is Not Enough

If your equity position does not give you a full 20% deposit for the second property, you have a few options. You can proceed with a smaller deposit and pay lenders mortgage insurance on the new purchase, you can look at a lower-priced property, or you can combine your equity with additional savings to reach the 20% threshold.

In a scenario where the Doncaster property provides $80,000 in accessible equity, but the target investment property requires a $100,000 deposit to avoid LMI, the borrower might add $20,000 in cash savings to close the gap. Alternatively, they might accept the LMI cost if they believe the property will deliver strong capital growth or rental yield that offsets the insurance premium over time. LMI can add several thousand dollars to the upfront cost, and it is a one-off, non-refundable fee, so the decision depends on how urgently you want to proceed and what trade-offs you are willing to make.

Another consideration is whether the lender will allow you to borrow above 80% on your current property to access more equity. Going to 90% or 95% on the refinance also triggers LMI on that loan, so you may end up paying insurance on both sides of the transaction. For some borrowers, this is worthwhile to secure the second property sooner. For others, it makes more sense to wait and build equity or savings further before proceeding.

Timing Your Refinance and Purchase Application

You can apply for the refinance and the new purchase loan simultaneously, or you can complete the refinance first and then apply for the second loan once the equity is accessible. Applying simultaneously can speed up the process, but it also means both approvals are conditional on each other, which can create complications if one lender moves slower than the other or if valuations come in differently than expected.

Completing the refinance first gives you certainty about how much equity you have available and allows you to approach the second purchase with cash in hand, which can strengthen your negotiating position. It also simplifies the application process for the investment loan because the refinance is already settled and the new loan amount on your home is locked in. The downside is that it adds a few weeks to the overall timeline, which may be a problem if you have found a property you want to move on quickly.

If you are purchasing in a suburb like Ringwood, where stock can move quickly, having pre-approval for both the refinance and the investment loan before you start looking gives you more confidence to make an offer when the right property appears. Working with a broker who can coordinate both applications and ensure the timing aligns with your settlement dates will make the process more predictable.

Managing Cashflow After You Have Two Loans

Once both loans are active, your cashflow needs to account for two sets of repayments, along with any shortfall between rental income and investment property costs. Many investors underestimate the holding costs in the first few months, particularly if there is a gap between settlement and securing a tenant, or if unexpected maintenance comes up.

Setting aside a buffer of three to six months of repayments for the investment property can prevent stress if the property sits vacant longer than expected or if interest rates rise. Some lenders offer offset accounts on investment loans, which allows you to park this buffer in an account linked to the loan and reduce the interest charged without losing access to the funds. Others may only offer offset on owner-occupied loans, so the features available will depend on the loan structure and lender you choose.

If your borrowing capacity is tight, you may also want to consider whether fixing part of one or both loans gives you more certainty around repayments, or whether staying variable gives you the flexibility to make extra repayments as your income or rental yield improves. There is no universal answer, and the right approach depends on your risk tolerance and how actively you plan to manage the loans.

Using equity to purchase a second property can accelerate your wealth-building, but it only works if the numbers support the debt and you have a clear plan for managing both properties over the medium term. If you are weighing up whether your current equity position and income will support a second purchase, call one of our team or book an appointment at a time that works for you.

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