How Home Equity Loans Work in Australia: A Complete Guide for Property Owners

If you own property in Australia, you may be sitting on a valuable asset that can unlock funds for renovations, investments, or consolidating debt. A home equity loan allows you to borrow against the equity you’ve built up in your home. In this comprehensive guide, we’ll explain how home equity loans work, how to calculate your usable equity, the different types available, and the key factors to consider before applying.


What Is a Home Equity Loan?

A home equity loan is a type of secured loan that uses the equity in your property as collateral. Equity is the difference between your property’s current market value and the outstanding balance on your mortgage. For example, if your home is worth $800,000 and you owe $400,000 on your mortgage, your equity is $400,000.

Lenders typically allow you to borrow up to 80% of your property’s value, minus any existing mortgage. This is known as your usable equity. Home equity loans can be structured as a lump sum, a line of credit, or through refinancing. They are popular among Australian homeowners because they often have lower interest rates than personal loans or credit cards, and the interest may be tax-deductible if used for investment purposes.

How to Calculate Your Usable Equity

Before applying, it’s crucial to understand how much you can borrow. Here’s a step-by-step calculation:

1. Estimate your property’s current market value. You can use recent sales of similar properties in your area or get a professional appraisal.
2. Calculate 80% of that value. This is the maximum most lenders will allow you to borrow in total (existing loan plus new equity loan).
3. Subtract your current mortgage balance. The result is your usable equity.

Example:

• Property value: $900,000
• 80% of value: $720,000
• Current mortgage: $350,000
• Usable equity: $370,000

Keep in mind that lenders will also assess your income, expenses, and credit history to determine your borrowing capacity. Some lenders may offer up to 90% of the property value, but this often comes with higher interest rates and Lenders Mortgage Insurance (LMI) if the total loan exceeds 80%.

Types of Home Equity Loans in Australia

There are several ways to access your home equity, each with its own features and suitability.

1. Lump Sum Home Equity Loan

This is a traditional loan where you receive a fixed amount upfront and repay it over a set term (usually 5 to 30 years) with principal and interest. It’s ideal for large, one-off expenses like a major renovation or a car purchase. Interest rates can be fixed or variable.

2. Home Equity Line of Credit (HELOC)

A line of credit works like a credit card with a limit based on your equity. You can draw funds as needed up to the approved limit and only pay interest on the amount used. It’s flexible and suitable for ongoing projects or as an emergency buffer. However, it requires discipline because it’s easy to overspend.

3. Cash-Out Refinancing

Instead of taking out a second loan, you can refinance your existing mortgage for a higher amount and take the difference in cash. This consolidates your debt into one loan, potentially at a lower rate. It’s a popular option when your current fixed rate is expiring or you want to simplify repayments.

4. Reverse Mortgages (for Seniors)

Available to homeowners aged 60+, a reverse mortgage allows you to borrow against equity without making repayments until you sell the home, move into aged care, or pass away. The interest compounds over time, which can significantly reduce the remaining equity. It’s important to seek independent financial advice before considering this option.

Comparison Table: Lump Sum vs Line of Credit vs Cash-Out Refinance

Interest Rates, Fees, and Tax Considerations

Interest Rates

Home equity loan rates in Australia are generally higher than standard home loan rates but lower than unsecured personal loans. As of 2025, variable rates for home equity loans typically range from 6.5% to 8.5% p.a., while fixed rates may be slightly higher. The rate you receive depends on your credit score, loan-to-value ratio (LVR), and the lender’s assessment.

Fees

Common fees include:

• Application fee: $0–$600
• Valuation fee: $200–$500
• Settlement fee: $100–$300
• Ongoing annual fee: $0–$400 (especially for lines of credit)
• Discharge fee: $150–$500

Some lenders offer no-fee packages, but these may have higher interest rates. Always compare the total cost over the loan term.

Tax Deductibility

If you use the loan for income-producing purposes—such as buying an investment property, shares, or renovating a rental—the interest may be tax-deductible. However, if used for personal expenses like a holiday or car, it is not deductible. Consult a tax professional to understand your situation.

Risks and Considerations

While home equity loans can be a powerful financial tool, they come with risks:

• Increased debt: Borrowing against your home increases your overall debt and reduces your equity cushion.
• Repayment pressure: If your income drops or interest rates rise, repayments can become unaffordable.
• Risk of foreclosure: Your home is collateral. Defaulting could lead to repossession.
• Market downturns: If property values fall, you could end up owing more than your home is worth (negative equity).
• Temptation to overspend: With a line of credit, easy access to funds can lead to poor spending decisions.

To mitigate these risks, borrow only what you need, have a clear repayment plan, and consider fixing your rate if you’re on a tight budget.

How to Apply for a Home Equity Loan

1. Check your equity: Use the calculation method above or talk to a broker.
2. Compare lenders: Look at interest rates, fees, and loan features. Consider using a mortgage broker for access to multiple lenders.
3. Gather documents: Typically, you’ll need proof of income (payslips, tax returns), ID, property details, and a list of assets and liabilities.
4. Apply: Submit your application online or through a broker. The lender will order a property valuation.
5. Approval and settlement: If approved, you’ll receive the funds as a lump sum or credit line, usually within a few weeks.

FAQ

What credit score do I need for a home equity loan in Australia?

Most lenders require a good credit score (typically 600 or above on a scale of 0–1200) to qualify for competitive rates. If your score is lower, you may still get approved but with a higher interest rate.

Can I get a home equity loan if I’m still paying off my mortgage?

Yes, most home equity loans are taken out by homeowners who have an existing mortgage. The new loan is either a second mortgage or a refinance of the original loan.

How long does it take to get approved?

Approval can take from a few days to several weeks, depending on the lender and the complexity of your application. A simple line of credit may be faster than a cash-out refinance.

Is a home equity loan better than a personal loan?

It depends. Home equity loans usually have lower interest rates and longer terms, but they put your home at risk. Personal loans are unsecured and faster to obtain but have higher rates.

Can I use a home equity loan for a deposit on an investment property?

Yes, many investors use equity as a deposit. This can be an effective strategy, but ensure you can manage the repayments on both loans, especially during vacancy periods.

References

1. Australian Securities and Investments Commission (ASIC) - Home loans and equity release: https://moneysmart.gov.au/home-loans (Accessed 2025)
2. Reserve Bank of Australia - Statistical Tables: Housing Lending Rates (2025): https://www.rba.gov.au/statistics/tables/
3. Australian Taxation Office - Rental properties expenses: https://www.ato.gov.au/individuals-and-families/investments-and-assets/rental-property/expenses-to-claim (2024-25)
4. Canstar - Home Equity Loan Comparison (2025): https://www.canstar.com.au/home-loans/equity-loans/
5. Mortgage Choice - How to use equity in your home (2025): https://www.mortgagechoice.com.au/home-loans/equity/