Simple hacks to use home equity for a second property

You can borrow against your existing home to fund a second property purchase

You can use the equity in your current home as security to borrow funds for a deposit on a second property without needing to sell or save from scratch. Equity is the difference between what your home is worth now and what you still owe on it, and lenders will let you access a portion of that amount to fund another purchase.

This approach works when you have enough usable equity, your income can service both loans, and the new property meets lending criteria. For buyers in areas like Greensborough, Eltham, or Bundoora where property values have risen steadily over recent years, the equity available can be substantial enough to cover a full deposit and purchase costs on an investment property.

How lenders calculate usable equity

Lenders typically allow you to borrow up to 80% of your home's current value, minus what you still owe. The difference between that 80% threshold and your existing loan balance is your usable equity. Consider a homeowner in Ivanhoe whose property is now valued at $900,000 with $500,000 remaining on the mortgage. The lender would allow borrowing up to $720,000 (80% of $900,000), which leaves $220,000 in usable equity. That amount could fund a deposit on a second property in the region without requiring any cash savings.

If you borrow more than 80% of your home's value, lenders will require lenders mortgage insurance, which adds to your costs and reduces how much equity you can practically access. Most buyers aim to stay within that 80% threshold to avoid the additional expense. Your borrowing capacity for the second property will depend on your income, existing debts, and the rental income the new property is expected to generate if it is an investment.

Using equity to fund the full deposit and purchase costs

You can structure the loan so that the equity from your existing home covers both the deposit and all associated purchase costs for the second property. This includes stamp duty, conveyancing, building and pest inspections, and any lender fees. The equity is accessed by increasing the loan amount on your current home, refinancing it entirely, or setting up a separate loan secured against your existing property.

In North East Melbourne, where purchase costs can add another 5% to 7% on top of the property price, using equity means you do not need to drain cash reserves or delay the purchase while saving. If you are buying an investment property, this approach also preserves your cash flow for managing any rental vacancies or ongoing maintenance once you settle.

The structure that keeps both loans manageable

When you borrow against your home to fund a second purchase, the new loan for the investment property is kept separate from the loan on your existing home. Your current home loan may increase to release the deposit funds, but the loan for the second property is a standalone investment loan secured against that new property. This separation matters for tax purposes, as interest on the investment loan is typically deductible while interest on your home loan is not.

Some buyers set up a split loan structure, where the additional amount borrowed against their home is kept in a separate account or sub-account so the deductible and non-deductible interest can be clearly tracked. Your broker can help structure this correctly from the start so you do not need to unpick it later when preparing tax returns.

Serviceability determines how much you can borrow across both properties

Your income needs to service both your existing home loan and the new loan, even if the second property is an investment. Lenders will assess your income, existing debts, living expenses, and the rental income the new property is expected to generate. Most lenders apply a discount to rental income, typically calculating it at around 80% of the expected rent to account for vacancies and maintenance.

If your income alone does not support both loans, lenders may decline the application or reduce the amount they are willing to lend. In our experience, buyers who have paid down their existing home loan or increased their income since the original purchase are in a stronger position. If serviceability is marginal, restructuring existing debts or choosing a property with higher rental yield can improve the outcome.

When a valuation falls short of your expectation

Lenders will order a valuation on your existing home to confirm its current value before calculating usable equity. If the valuation comes in lower than you expected, the amount of equity available reduces accordingly. This can happen in areas where property values have plateaued or where your home requires updates that affect its market appeal.

If the valuation does not support the amount you need, you have a few options. You can provide a cash contribution to make up the shortfall, choose a lower-priced second property, or wait and pay down more of your existing loan to increase usable equity over time. Some buyers also consider a second valuation if they believe the first was conservative, though lenders are not obligated to accept it.

Cross-collateralisation and what it means for future flexibility

When you use equity from one property to secure a loan on another, the lender may place a mortgage over both properties. This is called cross-collateralisation, and it means both properties are linked as security for both loans. If you want to sell one property, refinance, or access equity again in the future, you will need the lender's approval to remove the mortgage from that property.

Cross-collateralisation can limit your options later, particularly if you want to switch lenders or sell the investment property without disturbing your home loan. Some lenders allow you to structure the loans so each property secures only its own debt, but this depends on how much equity you have and the lender's policies. Your broker can discuss whether keeping the securities separate is an option in your situation.

Call one of our team or book an appointment at a time that works for you

Using equity to fund a second property purchase requires careful structuring, particularly when it comes to serviceability, loan separation, and tax planning. If you are considering this approach, call one of our team or book an appointment at a time that works for you. We work with buyers across North East Melbourne and can help you understand how much equity you have, what lenders will allow, and how to structure the loans to keep both properties manageable.

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