Beginner's Guide to Using Home Equity for a Second Property

You can use the equity in your current home to fund the deposit and costs for a second property without needing to save for years or sell what you already own.

For teaching assistants looking to build wealth through property, this approach makes investment ownership possible earlier than waiting to accumulate cash savings. The mechanics are straightforward: you refinance your existing home loan to borrow against the equity you've built up, then use those funds as a deposit for an investment property. Whether that equity came from price growth, paying down your loan, or both, it becomes the funding source for your next purchase.

What Equity Actually Means in Dollar Terms

Equity is the difference between what your property is worth and what you owe on it. If your home is valued at $550,000 and your loan balance sits at $380,000, you have $170,000 in equity. Lenders won't let you access all of it. Most will lend up to 80% of your property's value without requiring lenders mortgage insurance, which means your total borrowing across both the existing loan and any new funds can't exceed $440,000 in this scenario. That leaves $60,000 available to draw out. From that amount, you'll need to cover the deposit on the investment property, stamp duty, conveyancing, and any other settlement costs.

How the Refinancing Process Works to Release Funds

You apply to either your current lender or a new one to increase your loan amount. The lender orders a valuation of your property to confirm its current worth, then assesses your income and expenses to make sure you can service the higher loan amount. Once approved, the additional funds are released, usually at settlement if you're switching lenders or within a few days if you're staying with your current one. Those funds then sit in your offset account or transaction account until you need them for the investment property purchase.

Consider a teaching assistant who bought a unit five years ago for $420,000 with a 10% deposit. The loan balance has dropped to $340,000, and the property is now valued at $530,000. That's $190,000 in equity. At 80% LVR, the maximum borrowing is $424,000, leaving $84,000 available. After setting aside $50,000 for a 10% deposit on a $500,000 investment property and another $25,000 for stamp duty and costs, the numbers work. The refinance allows the purchase to go ahead without years of additional saving.

Serviceability Matters More Than Equity Alone

Having equity doesn't guarantee approval. Lenders assess whether you can afford the repayments on both the increased home loan and the new investment loan. They'll look at your salary, any rental income from the investment property, and your regular expenses. Teaching assistant salaries are stable and understood by lenders, which helps, but if your living costs are high or you carry other debts, that affects how much you can borrow. Running the numbers with a broker before committing to a property search prevents disappointment later. We regularly see applicants with sufficient equity but not enough income to support both loans at the same time, especially if they're planning to hold the investment property on a principal and interest loan rather than interest-only.

Should You Stay With Your Current Lender or Switch?

Staying with your current lender can be faster because they already have your financial information and may not require a full application process. Some lenders offer internal top-ups that settle within days. Switching lenders takes longer but opens up access to better interest rates, different loan features, or lenders with more flexible serviceability policies. If your current loan has a high rate or limited offset and redraw options, refinancing to a new lender while accessing equity can improve your overall loan structure. The choice depends on whether speed or long-term loan performance matters more for your situation. For teaching assistants managing both a home loan and an investment loan, ongoing rate differences add up over time, so it's worth comparing. You can read more about the refinancing process in our guide on home loan refinancing for teachers.

What Happens to Your Repayments After Accessing Equity

Your repayments on the refinanced loan will increase because you're borrowing more. If you had $380,000 owing and you draw out $60,000, your home loan balance becomes $440,000. At current variable rates, that could mean an extra few hundred dollars per month depending on your interest rate and loan term. You'll also have repayments on the new investment loan, though rental income offsets part of that cost. The key is making sure your budget can handle both. Some buyers structure the refinanced home loan and the investment loan with different lenders to keep the tax treatment clear, since interest on the investment loan is deductible but interest on the portion used for your own home isn't. Others keep it simple and manage everything with one lender. Both approaches work depending on your circumstances and how much you value simplicity versus tax efficiency.

Equity Release vs Saving for a Deposit: The Timeline Difference

Saving a $50,000 deposit plus $25,000 in costs from your salary takes years. For a teaching assistant putting aside $500 per month, that's over ten years before you can buy. Accessing equity compresses that timeline to a few months, assuming your property has grown in value and your income supports the borrowing. The trade-off is higher debt and larger repayments, but you're also gaining rental income and potential capital growth from the investment property during those years instead of waiting. Whether that trade-off makes sense depends on your income stability, risk tolerance, and how long you plan to hold both properties. We often work with teaching assistants who've owned their home for three to five years and built enough equity through modest price growth to make this approach viable without stretching their budget too far.

When Equity Release Doesn't Work

If your property hasn't increased in value or you bought recently with a small deposit, you might not have enough equity yet. If your income has dropped or your expenses have increased since you first bought, serviceability becomes the barrier even if equity exists. If you're already at or near 80% LVR, there's little room to borrow more without paying lenders mortgage insurance, which adds cost and reduces the amount available for the investment deposit. In those situations, waiting until you've paid down more of the loan or your property value has increased makes more sense than forcing a refinance that leaves you with insufficient funds or unaffordable repayments. For more on how equity works in your specific situation, visit our page on equity release loans for teachers.

Structuring the Loans for Tax and Flexibility

Keeping the funds you draw out separate from your existing home loan makes tax time simpler. If you refinance and increase your home loan by $60,000, that $60,000 portion is being used to fund an investment, so the interest on it is deductible. The interest on the original loan amount for your home isn't. Some lenders allow you to split the loan into two accounts under one facility to keep the distinction clear. Others require separate loans. If you're planning to pay off your home loan faster while keeping the investment loan interest-only, splitting the loans gives you that flexibility. It's a detail that doesn't seem important at settlement but becomes relevant when you're managing repayments and completing tax returns year after year.

Call one of our team or book an appointment at a time that works for you to discuss whether accessing your equity makes sense for your current financial position and investment goals.

Frequently Asked Questions