Investment Loan Features That Support Different Property Goals
The investment loan structure that serves someone building passive income looks different to the structure needed for rapid portfolio growth. Interest-only repayments reduce holding costs during the accumulation phase, while principal and interest repayments accelerate equity build and suit investors approaching retirement or aiming to hold fewer properties with lower debt. A split facility combining both can bridge those strategies when your timeframe sits somewhere in between.
Consider an investor purchasing a two-bedroom apartment in Footscray. The property generates rental income of $2,100 per month, and the investor plans to hold for capital growth while keeping out-of-pocket costs low during the first five years. An interest-only term reduces monthly repayments by several hundred dollars compared to principal and interest, and the interest component remains fully deductible against other income provided the property was held or under contract at 7:30pm AEST on 12 May 2026. The investor uses the cash flow difference to service a second property two years later. The outcome is two properties held within a five-year window, both positively contributing to the investor's equity position as values rise.
How Borrowing Capacity Changes With Your Deposit Size
Your deposit size directly affects how much you can borrow and what you'll pay in upfront costs. Lenders calculate borrowing capacity by assessing your income, existing debts, living expenses, and the rental income the investment property is expected to generate. Most lenders apply a discount to rental income when calculating serviceability, typically assessing 70 to 80 per cent of the projected rent.
An investor with a 10 per cent deposit will generally require Lenders Mortgage Insurance, which adds to the upfront cost and is calculated on a sliding scale based on loan amount and loan to value ratio. An investor with a 20 per cent deposit avoids LMI entirely and may access slightly lower interest rates. If you're using equity from an existing property rather than cash savings, the same LVR principles apply. Lenders assess the combined LVR across your portfolio when determining whether LMI is required and what rate applies. Understanding your borrowing capacity before you start looking at properties helps you focus on what's within reach and structure your deposit accordingly.
Variable or Fixed Rates for Property Investors
Variable rates give you flexibility to make extra repayments, redraw funds, and switch loan features without penalty. Fixed rates lock in your repayment amount for a set period, typically one to five years, and protect you from rate rises during that window. For investors, the choice often comes down to cash flow predictability versus flexibility.
A variable rate suits investors who want the option to pay down debt faster, access redraw when opportunities arise, or refinance without incurring break costs. A fixed rate suits investors who prefer certainty around holding costs, particularly when cash flow is tight or when other properties in the portfolio are on variable rates. A split loan combines both. You might fix 50 per cent of the loan to lock in a portion of your repayment and leave the other 50 per cent variable to retain flexibility. The split can be adjusted to suit your risk tolerance and investment timeline.
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Negative Gearing and How the Rules Apply to Your Loan
Negative gearing allows you to offset the loss from your investment property against your other income, reducing your taxable income and your overall tax bill. If your property costs more to hold than it earns in rent, that loss is deductible provided the property is genuinely available for rent and the loan was used to purchase or hold the property.
The rules changed for properties acquired after 7:30pm AEST on 12 May 2026. Losses on established properties purchased after that date can only be offset against income from other residential properties, including capital gains on residential properties, from the 2027-28 income year onward. Losses from eligible new builds purchased after that date remain fully deductible against all income. Properties held or under contract before that date are grandfathered and continue to allow full deductibility of losses against salary, business income, and other assessable income until sold. Your loan structure doesn't change the tax treatment, but understanding which properties qualify for full negative gearing affects how you prioritise acquisitions and whether a new build or established property better serves your strategy.
Interest-Only Loans and When They Serve Investors
An interest-only loan allows you to pay only the interest component of your debt for a set period, typically up to five years. Your loan balance doesn't reduce during that time, but your monthly repayment is lower. This structure suits investors focused on acquiring multiple properties, maximising cash flow, or holding properties during the early years when capital growth is the primary goal.
Interest-only periods are not indefinite. When the interest-only term ends, the loan reverts to principal and interest repayments unless you apply to extend it. Lenders reassess your circumstances before approving an extension, and not all investment loans allow multiple interest-only periods. If your goal is to reduce debt over time, switching to principal and interest earlier in the loan term accelerates equity growth and reduces the total interest paid over the life of the loan. If your goal is to hold more properties and delay debt reduction until later in your investment timeline, interest-only terms are a tool that keeps repayments lower while your portfolio grows.
Refinancing to Access Equity for Your Next Purchase
As your investment property increases in value, the equity in that property becomes accessible. You can refinance to release equity and use it as a deposit for your next investment without selling the original property. Lenders assess your total debt position, including the proposed new borrowing, and calculate whether your income and rental income across the portfolio can service the increased debt.
An investor in Geelong refinanced an investment property purchased three years earlier. The property had risen in value, and the investor now held 35 per cent equity. The investor released a portion of that equity to fund a 20 per cent deposit on a second property in Ballarat, avoiding LMI and keeping the new loan within a manageable LVR. The rental income from both properties covered the interest on both loans, and the investor's taxable income reduced due to the deductible interest on the new borrowing. The outcome was two properties held with positive cash flow contribution and growing equity across both. Refinancing to access equity works when the numbers support the additional borrowing and when the properties generate sufficient rental income to meet serviceability requirements.
Loan Features That Support Portfolio Growth
Offset accounts, redraw facilities, and flexible repayment options give you control over your loan as your circumstances change. An offset account is a transaction account linked to your investment loan. The balance in the offset account reduces the interest charged on your loan without affecting the deductibility of interest, because the loan balance itself remains unchanged. This differs from paying extra off the loan, which reduces the principal and may limit future deductibility if you redraw funds for private purposes.
A redraw facility allows you to access extra repayments you've made on your loan. Some lenders charge fees for redraw or place limits on how much you can access. Others allow unlimited free redraws. If you plan to use surplus cash flow to build a buffer for future deposits or expenses, an offset account is usually more flexible than redraw. If your priority is reducing the loan balance and you don't anticipate needing access to those funds, paying extra off the principal saves interest without requiring an offset account.
Investment Property Rates and How Lenders Price Investor Loans
Investment property rates are typically higher than owner-occupier rates. Lenders apply a risk premium to investor lending because investors are statistically more likely to prioritise their own home repayments over investment property repayments during financial hardship. The rate you're offered depends on your LVR, your deposit size, whether the loan is interest-only or principal and interest, and your overall financial position.
A strong rental yield, a lower LVR, and evidence of genuine savings or existing equity improve your negotiating position. Some lenders offer rate discounts for professionals, for borrowers with multiple loans with the same institution, or for larger loan amounts. The difference between a discounted rate and a standard rate over a 30-year term is significant, even when the rate gap is small. Comparing investment loan options across multiple lenders gives you a clearer picture of where your situation attracts the most competitive pricing, and a broker can access lender panels you may not approach directly.
Serviceability Rules and the Debt-to-Income Cap
Lenders assess your ability to repay an investment loan by applying a serviceability buffer of at least 3.0 percentage points above the actual loan rate. If the loan rate is 6.0 per cent, the lender tests whether you can afford repayments at 9.0 per cent. This buffer protects both you and the lender from future rate rises. In addition to the buffer, lenders now operate under a debt-to-income lending limit. From 1 February 2026, no more than 20 per cent of new investor loans from any authorised deposit-taking institution can be made to borrowers with total debt of six times or more of their gross annual income.
If your income is $100,000 per year and your total debt including the proposed investment loan exceeds $600,000, your application falls into the high DTI category. Lenders can still approve these loans, but they are capped at 20 per cent of the lender's total new investor lending. If the lender has already reached that cap in the current quarter, your application may be declined even if your income and expenses otherwise support the loan. The cap applies separately to investor and owner-occupier lending, and it does not apply to non-bank lenders. Knowing where you sit relative to the DTI threshold helps you choose lenders with capacity to lend in your category or adjust your deposit size to bring your borrowing within a lower DTI band.
Tax Deductions Beyond Interest
Interest on your investment loan is deductible, but so are most other costs associated with holding the property. Council rates, insurance, property management fees, repairs, and depreciation on the building and fixtures all reduce your taxable income. Stamp duty is not immediately deductible, but it forms part of the cost base of the property and reduces your capital gain when you sell. Body corporate fees for units and apartments are fully deductible. Costs incurred to advertise for tenants, conduct rental inspections, and prepare the property for lease are also claimable.
Keeping records of all expenses and holding costs makes tax time easier and ensures you claim everything available to you. If you pay LMI upfront, the premium is deductible in the year it's paid if the total amount is under a threshold set by the ATO, or over five years if it exceeds that threshold. If you capitalise the LMI premium into your loan, the interest on that portion of the loan remains deductible. Maximising deductions reduces the after-tax cost of holding your investment property and improves your cash flow position, particularly in the early years when rental income may not cover all outgoings.
Your property investment strategy deserves a loan structure that works with your goals, not against them. Call one of our team or book an appointment at a time that works for you.
