A home equity loan is additional borrowing secured against a home you already own. In Australia, it usually takes the form of a home loan increase, a separate loan split or a line of credit.
Equity is the property value less the debt secured against it. Accessing equity creates more debt, so the structure must fit the client's purpose and ability to repay.
How Equity Facilities Are Built
Home equity facilities either add to the existing loan, separate the new borrowing into a split or provide a revolving credit limit. Property security generally means lower interest rates than unsecured credit, because the lender can recover the debt from the home.
- An increase rolled into one loan combines the existing balance and new borrowing under one repayment schedule. This is simple to manage, but mixing private and investment spending makes purpose tracking harder.
- A separate split keeps the new borrowing in its own account. The client can track its balance and repayments separately, with a repayment term suited to the expense.
- A line of credit lets the client draw and repay funds up to an approved limit. It suits spending spread over time, but requires discipline to reduce the balance.
Increasing the existing loan with the current lender is a home loan top-up. Moving to another lender with a larger loan is cash-out refinancing.
For access rules and repayment details, read the home equity line of credit guide.
How Much Can Be Borrowed
Lenders commonly calculate usable equity as 80% of the property's valuation less the existing loan balance. The 80% figure comes from lender policy. Australian law does not impose that cap. CommBank's equity guide uses this approach.
Some lenders approve higher loan-to-value ratios (LVRs), often with lenders mortgage insurance (LMI). LMI protects the lender if the borrower defaults. The purpose and property must still meet the lender's policy.
Consider a hypothetical home valued at $800,000 with a $300,000 loan balance. Its total equity is $500,000. At an 80% cap, the calculation is $800,000 multiplied by 80%, less $300,000, leaving about $340,000 before costs.
The client cannot assume they can borrow the full $340,000. Income, expenses and existing commitments must support the larger loan. A lower valuation also reduces the available amount.
APRA's residential mortgage serviceability standard requires regulated banks to assess repayments at least 3 percentage points above the loan's actual rate. Lenders can apply stricter assessment settings.
Where Brokers Add Value on Equity Files
On an equity file, the broker's work is to match the structure to the use of the money. An increase, split or line of credit changes purpose tracking and how repayments reduce the debt.
For an investor, keeping investment borrowing separate from private spending makes interest records easier to maintain. A separate split alone does not make interest deductible. The use of the funds and the applicable tax rules decide that.
Arrange the lender's valuation and compare panel policies on cash-out purposes, acceptable security and maximum LVR. Check how each product calculates interest, its fees and whether its repayment term suits the expense.
Record why the proposed structure meets the client's needs. If the valuation or serviceability result falls short, reduce the requested amount or reconsider the plan before progressing.
How Clients Use Equity
Clients use home equity borrowing for renovations, debt consolidation or an investment deposit. Each purpose needs its own repayment plan.
For renovations, base the amount on quotes and a contingency allowance. Borrowing against the home does not guarantee the work will add the same amount to its value.
Rolling high-interest debts into the mortgage can lower the rate and monthly repayment. The client must address the spending habits behind those debts, or credit cards can refill alongside the larger home loan.
An investment deposit creates another debt as well as a new property purchase. Assess repayments on both loans. The guide to using equity as a deposit covers the purchase process.
A lump-sum split is a useful starting point for a known expense with a fixed budget. Compare its rate and fees with a line of credit, which allows repeated access but can leave debt outstanding.
A personal loan usually costs more in interest if it is unsecured, but its shorter term can limit lifetime interest. Compare total cost over the intended repayment period.
Tax and Redraw Traps
Interest deductibility follows the use of borrowed money. Under ATO ruling TR 2000/2, a redraw is a new borrowing, even when the original loan funded an investment.
Correct treatment: when an investor redraws money for a private holiday, interest on that portion is private. Incorrect treatment: claiming all interest because the account is labelled an investment loan.
Withdrawing savings from an offset account is different. The savings sit in a separate account, so withdrawing them does not create a new borrowing. It increases the loan balance on which interest is charged.
Negative gearing is also changing. Schedule 2 of the Treasury Laws Amendment (Tax Reform No. 1) Act 2026 introduces residential rental-loss restrictions from the 2027 to 2028 income year.
Qualifying new builds and property acquired before the legislated Budget cut-off retain full negative-gearing treatment. For affected established properties, excess deductions are quarantined under the new rules instead of reducing salary income.
These are general tax rules. Refer investment clients to a registered tax adviser to confirm eligibility and the treatment of their borrowing before they commit.
Risks Stated Plainly
A home equity loan puts the home at risk if repayments fail. Default can lead to a mortgagee sale, including when the borrowed funds paid out previously unsecured debts.
If property values fall, the loan can exceed the home's value. Selling then leaves a shortfall to repay, and refinancing can become harder.
Stretching short-term debt over decades can increase lifetime interest despite a lower rate. Moneysmart's debt consolidation guidance explains this risk.
For consolidated debts, compare a shorter repayment term with the existing debt's remaining term. A separate split helps the client see whether they are actually reducing that balance.
Steps to Accessing Equity
Accessing equity starts with the property's value and ends with settlement of an affordable, purpose-matched loan.
- Estimate the current property value and confirm the outstanding loan balance. Calculate total equity and the amount within the proposed lender's LVR limit.
- Write down the purpose and exact amount required. Include renovation contingencies and loan costs, and obtain tax advice where the use is investment-related.
- Choose an increase, separate split or line of credit. Match access to the spending schedule and set a repayment term that fits the expense.
- Compare suitable panel products on rate, fees and access features. Complete serviceability checks and obtain the lender's valuation before relying on the borrowing amount.
- Lodge the application, meet approval conditions and proceed to settlement. Confirm the final balance, repayment schedule and available funds match the approved structure.
After settlement, review pricing regularly and monitor repayments. Recheck loan terms when the client's circumstances change, especially before another drawdown or refinance.
Write down the purpose, exact amount and tax position before comparing products. Those details determine which home equity loan structure is suitable.
