Can You Use Home Equity to Buy an Investment Property?
You can use equity in your existing home to fund the deposit and purchase costs for an investment property without needing to save a separate cash deposit. Most lenders will allow you to borrow against up to 80% of your home's current value, which means the equity you've built becomes accessible for your next purchase.
For homeowners in Parramatta, this approach has become particularly relevant as property values in the area have grown steadily over recent years. The equity sitting in your home isn't just a number on paper. It can be released through refinancing your current home loan or by taking out a separate loan secured against your property. Either way, you're using the value you've already built to fund your investor deposit and associated costs like stamp duty and legal fees.
Consider a homeowner in North Parramatta who purchased their home several years ago. Their property is now valued higher, and they owe less on the mortgage than when they started. That gap between what the property is worth and what they owe is equity. If the home is valued at a level where 80% loan to value ratio leaves them with accessible equity, they might have enough to cover a 20% deposit on a second property plus the costs involved in purchasing it.
The mechanics involve your lender reassessing your property's current value, calculating how much you can borrow against it while staying within their lending criteria, and then either increasing your existing loan or establishing a new one. That borrowed amount is then used to fund the investment property purchase. You're not withdrawing cash in the traditional sense. Instead, you're increasing your total borrowing, secured against the value of your home.
For many property investors, this method avoids the need to accumulate another large cash deposit while their money is already tied up in their existing home. It also means you can move when the right opportunity appears rather than waiting years to save again.
How Lenders Calculate Usable Equity
Usable equity is calculated by taking 80% of your property's current market value and subtracting what you still owe on the mortgage. The remaining figure is what most lenders will allow you to access without requiring Lenders Mortgage Insurance.
If your Parramatta home is valued higher now than when you bought it, and your loan balance has reduced through regular repayments, the difference can be substantial. Lenders will typically order a valuation to confirm your property's current worth before approving any equity release. This valuation reflects recent sales in your area, the condition of your home, and local demand.
Once the valuation is complete, the lender applies their loan to value ratio cap. Most will lend up to 80% of the property's value without LMI. If you want to borrow more than that, you'll need to pay LMI, which can add thousands to your upfront costs. Staying at or below 80% keeps your borrowing costs lower and makes the transaction more viable for building a portfolio over time.
In our experience, many Parramatta homeowners underestimate how much equity they've accumulated, particularly if they purchased before the suburb's recent growth or if they've been making extra repayments. A property bought years ago in one of the older pockets near the Parramatta CBD may have appreciated significantly, creating a larger equity pool than expected.
Your borrowing capacity also plays a role. Even if you have accessible equity, the lender still needs to be satisfied that you can service both your existing home loan and the new investment loan repayments. They'll assess your income, existing debts, living expenses, and the expected rental income from the investment property. Rental income is usually included at 80% of its value to account for vacancy periods and ongoing costs.
Investment Loan Structure and Repayment Options
Most property investors structure their investment loan separately from their home loan to keep the finances distinct and maintain clear records for tax purposes. You can choose between principal and interest repayments or interest only repayments, depending on your cash flow needs and investment strategy.
Interest only investment loans allow you to pay only the interest portion each month, which reduces your regular repayment amount and can improve cash flow. This structure is common among investors who want to maximise tax deductions and reinvest surplus funds elsewhere. The loan balance doesn't reduce during the interest only period, but you're not required to pay down the principal until that period ends, which is typically between one and five years.
Principal and interest repayments mean you're paying down the loan balance over time while also covering the interest. Your repayments are higher, but you're building equity in the investment property with each payment. Some investors prefer this approach for long-term portfolio stability, particularly if they're planning to hold the property for decades.
You'll also need to decide between a variable interest rate and a fixed interest rate. Variable rates move with the market, which means your repayments can increase or decrease depending on rate changes. Fixed rates lock in your interest rate for a set period, usually between one and five years, which provides repayment certainty but less flexibility if you want to make extra repayments or access features like an offset account.
Many investors use a split loan structure, fixing part of the loan for stability and keeping part variable for flexibility. This approach lets you manage risk while retaining the ability to make extra repayments on the variable portion if your cash flow allows.
Tax Implications and Deductibility
Interest on an investment loan is generally tax deductible when the loan is used to purchase an income-producing property. This is one of the key tax benefits that makes property investment appealing, particularly for those on higher marginal tax rates.
To maximise tax deductions, it's important that the loan is used solely for investment purposes. If you mix personal and investment borrowing, the ATO may limit what you can claim. Keeping your investment loan separate from your home loan ensures the interest you pay on the investment portion is fully claimable as a deduction against your rental income.
Other claimable expenses include property management fees, council rates, insurance, maintenance and repairs, and depreciation on the building and fixtures. Stamp duty and other upfront purchase costs are generally not immediately deductible but may be factored into your capital gains tax calculation when you eventually sell.
Negative gearing occurs when your rental income is less than your total property expenses, including loan interest. The net loss can be offset against your other income, reducing your overall tax liability. This strategy has been widely used by Australian property investors to build wealth over time while receiving a tax benefit in the early years of ownership.
Recent changes announced in the Federal Budget will affect negative gearing for established residential properties purchased after 12 May 2026. From 1 July 2027, losses from these properties will only be deductible against rental income or capital gains from residential property, not against wage income. If you purchased your investment property before Budget night, your existing arrangements are largely unaffected. Excess losses can still be carried forward, so deductions aren't lost entirely, but the immediate tax benefit is reduced for new purchases of established homes.
New builds remain incentivised, and investors purchasing newly constructed properties will retain access to the existing negative gearing rules and can choose the most favourable capital gains tax treatment when they sell.
Borrowing Capacity and Serviceability Assessment
Your ability to borrow against your home equity depends on whether you can service the combined debt from both your existing home loan and the new investment loan. Lenders assess your income, current debts, living expenses, and the rental income the investment property is expected to generate.
Rental income is included in the serviceability calculation, but lenders typically only count 80% of the anticipated rent to allow for vacancy periods and ongoing costs. If you're purchasing in an area with a higher vacancy rate, this buffer becomes particularly relevant. Parramatta's rental market has remained relatively stable due to demand from students, professionals working in the CBD precinct, and families, but lenders still apply the same conservative assessment.
Your existing commitments also affect how much you can borrow. Credit card limits, personal loans, and other investment debts are all factored into the calculation, even if you don't carry a balance. Lenders assess your borrowing capacity by applying a buffer to current interest rates, meaning they test whether you could still afford repayments if rates increased.
If your serviceability is tight, there are a few strategies that can help. Paying down or closing unused credit cards, consolidating other debts, or increasing your income through a pay rise or additional work can all improve your position. Some lenders also have different serviceability policies, so exploring investment loan options from banks and lenders across Australia can reveal more favourable terms.
Managing Risk and Portfolio Growth
Using equity to purchase investment property increases your overall debt, which also increases your exposure to interest rate movements and property market fluctuations. Managing this risk requires a clear understanding of your cash flow, a buffer for unexpected costs, and a long-term view of your investment strategy.
One approach is to ensure you have sufficient cash reserves to cover several months of repayments, particularly if the property becomes vacant or requires urgent repairs. Building wealth through property works when you can hold the asset through market cycles without being forced to sell during a downturn.
Another consideration is loan to value ratio management across your portfolio. If you're borrowing at 80% LVR on both your home and your investment property, a fall in property values could push you into a position where you owe more than 80% of the property's worth. While this doesn't trigger an immediate issue if you're meeting repayments, it does limit your ability to access further equity or refinance without paying LMI.
Diversifying your portfolio by location, property type, or investment structure can also reduce concentration risk. Some investors in Parramatta choose to buy their investment property in a different suburb or region to avoid having all their wealth tied to one local market. Others prefer to stay close to home where they understand the area and can manage the property more directly.
Finally, reviewing your loans regularly ensures you're still on a competitive rate and that your loan features align with your current goals. A loan health check every couple of years can identify opportunities to refinance, access better investor interest rates, or adjust your loan structure as your circumstances change.
Using your home equity to purchase an investment property is a proven strategy for building a portfolio without needing to save another large deposit. If you own property in Parramatta and you've built equity over time, that value can be put to work funding your next purchase. The decision involves understanding your borrowing capacity, structuring your loans appropriately, and managing the risks that come with increased debt. Call one of our team or book an appointment at a time that works for you to discuss your investment loan options and explore how equity release could support your property goals.
Frequently Asked Questions
Can I use the equity in my home to buy an investment property?
Yes, you can use equity in your existing home to fund the deposit and purchase costs for an investment property. Most lenders allow you to borrow up to 80% of your home's current value, and the difference between that amount and what you owe becomes accessible equity.
How much equity do I need to buy an investment property?
You'll typically need enough equity to cover a 20% deposit on the investment property plus associated costs like stamp duty and legal fees. This keeps you at or below an 80% loan to value ratio and avoids Lenders Mortgage Insurance.
What is the difference between interest only and principal and interest investment loans?
Interest only loans require you to pay only the interest each month, reducing your repayment amount and improving cash flow. Principal and interest loans require you to pay down the loan balance over time, resulting in higher repayments but building equity in the property.
Are investment loan interest payments tax deductible?
Yes, interest on an investment loan is generally tax deductible when the loan is used to purchase an income-producing property. Keeping your investment loan separate from your home loan ensures the interest is fully claimable against your rental income.
How do lenders assess my borrowing capacity for an investment loan?
Lenders assess your income, existing debts, living expenses, and expected rental income from the investment property. Rental income is usually counted at 80% of its value to account for vacancies, and lenders test your ability to service the loan at higher interest rates.
