Many Australian property owners will have seen capital growth in their home in recent years. Fewer understand that this growth, sitting silently in their equity, can be put to work without selling the property. Using equity to buy another property is a commonly used strategy among experienced investors, and for good reason: it removes the need to accumulate a separate cash deposit over years while your next opportunity waits.
The strategy works, but only when it is approached with discipline. Done well, it accelerates portfolio growth and puts compounding property values on your side. Done poorly, it stretches serviceability past breaking point and leaves you holding two properties with no financial buffer. This guide walks through exactly how lenders calculate usable equity, the three main methods for releasing it, what the ATO expects, and a worked example using realistic Brisbane figures. The investment specialists at Your Home Loan Consultant work through this process with clients regularly, and what follows reflects the structures that hold up under lender scrutiny.
Using equity to buy another property, how much can you actually access?
Lenders do not let you borrow against the full value of your property. The standard ceiling for equity release without triggering Lenders Mortgage Insurance is 80% of the lender’s assessed property value, minus your existing loan balance. The formula is straightforward: multiply the property value by 0.80, then subtract what you still owe.
Using a concrete example: a home valued at $900,000 with a $500,000 mortgage leaves approximately $220,000 of usable equity ($900,000 x 80% = $720,000, minus $500,000 = $220,000). That figure represents the security-based ceiling, not an automatic approval. The lender still needs to be satisfied that you can service the additional debt.
Lenders conduct their own valuation, which can come in lower than your estimate, and a lower valuation directly reduces usable equity. Conservative lenders, particularly for regional, high-density or atypical properties, often cap at 70, 75% LVR rather than 80%, reflecting policies described in many lender product guides. Going above 80% is possible with some lenders, but it typically triggers LMI, higher pricing and tighter credit assessment. The equity calculation tells you what you might access; serviceability determines what you will actually be approved for.
Three ways to access your equity when using equity to buy another property
Cash-out refinance: the most common path
A cash-out refinance replaces your existing home loan with a larger one, and the difference is released as a lump sum. This is the most commonly used structure for property investors because it is straightforward to administer and gives you a clear, defined amount to deploy as a deposit. Owner-occupier variable rates on refinanced loans were broadly in the range of 5.7, 6.0% p.a. as at mid-2026 (based on major lender published rates and aggregator comparisons), and a typical refinance costs $1,000, $2,000 including discharge fees from the outgoing lender. Allow four to eight weeks for a mainstream lender to complete the process.
Home equity line of credit: flexibility with a cost
A HELOC-style facility operates as a revolving credit line secured against your property, letting you draw funds progressively rather than receiving a single lump sum. This suits investors who need to access equity in stages, for multiple purchases over time or for renovation projects where the final spend is uncertain. The trade-off is cost: HELOC rates typically run from around 6.6% to 9.0% p.a. depending on LVR and lender. Always compare the comparison rate rather than the headline figure, because annual package fees and unused-limit charges can make a seemingly low rate more expensive in practice.
Bridging finance: when timing is tight
Bridging loans are a short-term solution designed for situations where you need to act before a refinance settles or before another property sale completes. They are effective tools in the right circumstances, but they carry a cost premium of roughly one to three percentage points above standard home loan rates, putting typical bridging rates between 6.3% and 9.5% p.a. Facility terms generally run from three to twelve months, with establishment fees of up to $1,500. Capitalised interest is the key risk: if the expected sale or refinance is delayed, costs accumulate quickly and the pressure on your cash flow becomes significant.
A real-world example: from one property to two
Consider an owner-occupier in Brisbane with a home valued at $900,000 and an outstanding mortgage of $500,000. Their usable equity, calculated at 80% LVR, sits at approximately $220,000. Their goal is to purchase an investment property at $650,000, requiring a 20% deposit of $130,000 plus approximately $15,000 in stamp duty and purchase costs, for a total of around $145,000.
The strategy is to refinance the owner-occupied home to release $145,000 as a separate loan split, keeping the combined debt on that property at or below $645,000 and the LVR at approximately 71.7%. This stays comfortably below the 80% threshold and avoids LMI. The equity release is set up as a dedicated investment loan split, separate from the original mortgage, which keeps the borrowing purpose clean for tax purposes. A separate investment loan of $520,000 (80% of the $650,000 purchase price) then funds the balance of the investment property.
After settlement, the investor holds two properties with two distinct loan structures and a rental income stream beginning to offset the investment loan interest. This scenario is illustrative: over a five-to-ten year horizon, equity in both properties may grow as values increase, and with it, the capacity to support a third purchase. Whether that is achievable depends on market performance and serviceability at that time. This is where multi-property financing structure starts to matter considerably.
What lenders check before approving your equity release
Usable equity satisfies the lender’s security requirement, but it does not address serviceability. Under APRA’s published framework, lenders must assess your repayments at the contracted rate plus a minimum three-percentage-point buffer. A 6.0% home loan is therefore stress-tested at approximately 9.0%. When you increase your loan balance through a cash-out refinance, the buffered repayment on that larger loan increases substantially, reducing the income surplus available for the investment loan.
The full serviceability picture pulls in all existing commitments: credit card limits (even unused ones), personal loans, HECS/HELP obligations, and living expenses scaled to household size and dependants. Investment rental income is generally credited at around 70, 80% of gross rent to account for vacancy and management costs, depending on the lender’s policy.
Extending the loan term can improve the serviceability calculation by reducing the monthly assessed repayment, but it increases total interest paid over the life of the loan, a trade-off worth modelling carefully before committing.
Property type and location also influence how much a lender will approve. A metropolitan Brisbane property is assessed more favourably than a regional, rural or high-density property, which may attract a lower LVR cap regardless of your income position.
The tax side: interest deductibility and CGT
The ATO’s position is clear: deductibility follows the purpose of the borrowed funds, not the security used to obtain them. Interest on the equity released and used specifically to purchase the investment property is generally deductible because the funds are directed toward an income-producing asset. Interest on the original home loan, used to fund your private residence, remains non-deductible. Using a separate loan split to hold the investment equity, as described in the worked example above, keeps these purposes clean and makes the tax position straightforward to document and sustain.
Mixing investment and personal borrowing into a single account creates a mixed-purpose loan, which requires ongoing apportionment of interest. This is administratively messy, creates audit risk, and can result in deduction claims being disputed or disallowed. The ATO’s guidance on mixed-purpose loans makes clear that the compliance burden and potential cost of disallowed deductions significantly outweigh the convenience of a single account.
If the investment property runs at a net loss after deducting interest, management fees, rates and depreciation, that loss can generally be offset against other taxable income under negative gearing rules. This reduces the after-tax holding cost of the property and is one reason investors often structure investment loans as interest-only during early portfolio-building years.
When you eventually sell, the capital gain is calculated as sale proceeds minus cost base, inclusive of eligible acquisition costs. Australian resident individuals who have held the property for more than 12 months generally qualify for the 50% CGT discount, which means only half the eligible gain is added to assessable income and taxed at the marginal rate. Negative gearing deductions claimed during the holding period do not reduce the CGT calculation; they are assessed entirely separately. Note that the Australian Government has signalled changes to CGT discount treatment from 1 July 2027, so disposal timing and applicable rules are worth confirming with a tax professional before making decisions based on the current discount.
Structuring multi-property financing the right way
As a portfolio grows, the structure of each loan matters as much as the interest rate. Which loans are interest-only? Which properties secure which debts? Cross-collateralisation, where multiple properties are bundled as security for a single loan, can make initial approval easier but creates significant inflexibility later. If you want to sell one property or refinance another independently, a cross-collateralised structure can require the lender’s approval for both, reducing your options at exactly the moment you need them most. Keeping loans on separate titles wherever possible preserves your flexibility as the portfolio evolves.
At Your Home Loan Consultant, our investment specialists work through equity release scenarios with clients in detail: modelling usable equity, running serviceability across proposed loan structures, identifying the right access method for each situation, and structuring loan splits to keep tax positions clean. The goal is not simply to find a low rate, it is to build a structure that functions across multiple properties, holds up under lender assessment, and positions you to act when the next opportunity arrives.
A practical starting point is to run your numbers through an equity calculator to understand what your current position allows. From there, book a strategy session with a specialist who can map out the full loan structure before you approach a lender. Arriving with a clear picture of your equity, your serviceability, and your proposed structure puts you in a significantly stronger position than most borrowers who approach lenders unprepared.
Building a portfolio requires more than a good rate
Equity is one of the most powerful tools available to Australian property investors, but it operates within real constraints: the 80% LVR ceiling, the APRA serviceability buffer, lender valuations that may not match your expectations, and tax rules that reward clean loan structures. Understanding each constraint before you act is what separates a smooth portfolio expansion from one that stalls at the second property.
Using equity to buy another property works best when the loan structure is right from day one, separate splits, clearly documented purposes, and a serviceability model that accounts for stressed rates and realistic rental income. This is not a shortcut; it is a structured approach that rewards careful planning and penalises assumptions. Speak with an investment-focused mortgage broker who can model the specific numbers for your situation, because general guidance only takes you so far when lender policies and individual serviceability vary this much.