Top 10 Moves for Your First Investment Property Purchase

Your first investment property loan determines whether you build wealth efficiently or spend the next decade unwinding structural mistakes.

Brisbane investors entering the market now face deposit-to-income limits from February, negative gearing changes applying to established properties purchased after May, and capital gains tax indexation replacing the discount method from July next year. The loan structure you choose today either accommodates those shifts or locks you into a position that becomes expensive to exit.

Deposit Requirements and Borrowing Power Under DTI Limits

Lenders assess your total debt against your gross income and cap new investor lending at a debt-to-income ratio of six times for no more than 20 per cent of their book. If your household income sits at $120,000 and you carry $50,000 in other debt, your maximum total borrowing sits at $670,000 before hitting the threshold where most lenders pull back. A 10 per cent deposit on a property at the current Brisbane median leaves you with an LVR above 80 per cent, which triggers Lenders Mortgage Insurance and increases your capital requirement under the risk weighting banks apply to investor loans. Saving a 20 per cent deposit avoids LMI, keeps you inside standard risk weighting, and preserves borrowing capacity for your second purchase. The DTI measure applies across all your lending, so every dollar of existing personal debt reduces what you can deploy toward property.

Consider a buyer earning $95,000 with a $25,000 car loan. Total allowable debt before breaching the DTI threshold sits at $545,000. After deducting the car loan, investment borrowing capacity drops to $520,000. If that buyer instead cleared the car loan before applying, they reclaim $25,000 in capacity without increasing their income or deposit. Lenders measure total exposure, not just the new loan amount.

Interest Only Versus Principal and Interest Loan Structures

Interest-only repayments reduce your monthly outgoings and preserve cash flow for additional purchases, but the loan balance remains static and you pay interest on the full amount for the entire interest-only period. Principal and interest repayments build equity automatically and reduce your total interest cost, but they increase your monthly commitment and reduce the surplus available for a second deposit. Under the current prudential framework, an interest-only loan at an LVR above 80 per cent with a term longer than five years attracts a non-standard classification and higher risk weighting, which feeds through to pricing and borrowing power.

Most investors establishing a portfolio choose an initial interest-only period of three to five years to maximise cash flow and accelerate the timeline to their next purchase. Once the second property settles, switching the first loan to principal and interest reduces the interest deduction but starts compounding equity growth across both assets. The sequencing matters because your borrowing capacity peaks when your debt serviceability is lowest, which occurs when repayments are interest-only and rental income offsets the holding cost.

Offset Accounts and Deductibility of Interest

Interest on borrowings used to acquire or hold rental property is deductible against assessable income. Interest on borrowings for private purposes is not deductible, regardless of the security provided. If you park surplus cash in an offset account linked to your investment loan, you reduce the interest charged and therefore reduce your deduction. If you instead park that cash in an offset account linked to your owner-occupied loan or hold it in a separate savings account, your investment loan interest remains fully deductible and you reduce non-deductible interest elsewhere. The ATO views the purpose of the borrowing, not the security, as the determining factor. Mixing funds or redrawing for private purposes contaminates the deductibility of future interest, and unwinding that contamination requires refinancing with clear separation of purpose.

Investors who structure their loans with offset accounts linked to non-deductible debt and keep their investment lending separate maximise their annual tax deduction and minimise their after-tax holding cost. The difference over a five-year period on a $500,000 loan can exceed $15,000 in forgone deductions if the offset is attached to the wrong loan.

Variable Rate, Fixed Rate, and Split Rate Loan Products

Variable rate investment loans allow unlimited additional repayments, full offset functionality, and portability when you sell and replace the security property. Fixed rate loans lock your repayment for a set term but restrict additional repayments, rarely offer offset capability, and impose break costs if you exit early or sell the property before the fixed term ends. A split rate structure divides your borrowing into a variable portion and a fixed portion, giving you partial rate certainty while retaining flexibility on the variable component.

Investors building a portfolio typically favour variable or majority-variable splits because the ability to redraw, offset, and port the loan outweighs the benefit of fixed rate certainty. Fixed rates work when you intend to hold the property long-term, expect rates to rise materially, and do not anticipate selling or refinancing within the fixed period. For a first purchase where your strategy may adapt as your income or family circumstances shift, locking the full amount into a fixed term removes options you may need within two to three years. Splitting 70 per cent variable and 30 per cent fixed preserves flexibility while smoothing part of your repayment.

Negative Gearing After May and the New Build Exemption

Losses from residential rental properties held at 7:30pm AEST on 12 May this year remain fully deductible against salary and wages until you sell. Losses from established properties purchased after that date are deductible only against other residential property income from the 2027-28 income year onward, meaning your first year of restricted deductibility begins on 1 July next year. If you purchase an eligible new build, losses remain deductible against all income regardless of purchase date. An eligible new build includes dwellings constructed on previously vacant land and dwellings replacing existing properties where the number of dwellings increases. A knock-down rebuild that does not increase dwelling numbers does not qualify.

For a Brisbane investor purchasing an established unit in Fortitude Valley with an annual holding cost of $8,000 after rental income, the full $8,000 loss offsets salary income if the property was held before May. If purchased now, that $8,000 loss carries forward and offsets future property income or capital gains, but it does not reduce this year's tax liability unless you also hold another property generating positive income. New builds purchased in growth corridors such as Ripley or Yarrabilba retain full negative gearing, which reduces your after-tax holding cost in the early years when rental yields are lower and vacancy is higher.

Loan Structures That Accommodate Portfolio Expansion

Your first loan structure should assume you will purchase again within three to five years. Lenders assess your borrowing capacity at each application using your current income, existing debts, and the rental income from properties you already hold. If your first loan is structured as principal and interest with no offset, your repayments are higher, your surplus income is lower, and your capacity for a second purchase is reduced. If your first loan is interest-only with an offset linked to non-deductible debt elsewhere, your cash flow is preserved and your capacity is maximised.

Investors purchasing in suburbs with strong rental demand and moderate entry price, such as Coorparoo or Annerley, typically structure their first loan as interest-only for five years with offset capability, even if they do not use the offset immediately. This structure keeps monthly repayments at the minimum, allows surplus income to accumulate in an offset account linked to their owner-occupied loan if they have one, and presents the lowest ongoing commitment when the broker runs serviceability for the second property. Once the second loan settles, switching the first loan to principal and interest accelerates equity growth without constraining further purchases, because the second property now provides the marginal borrowing capacity.

Capital Gains Tax Indexation and the Timing of Your Purchase

From 1 July next year, the 50 per cent capital gains tax discount is replaced by cost base indexation and a 30 per cent minimum tax rate on real gains accruing after that date. Gains accruing before 1 July next year remain subject to the current discount method. For a property purchased now and sold in ten years, the gain is split into a pre-July portion taxed under the discount and a post-July portion taxed under indexation. The ATO will publish an apportionment formula, or you can obtain a market valuation as at 1 July next year to establish the split.

Eligible new builds retain access to both the discount method and the indexation method as a choice at disposal, meaning you select whichever treatment produces the lower tax. For an investor in the 37 per cent marginal bracket purchasing an established property, a $100,000 gain accruing entirely after 1 July next year and indexed to $80,000 in real terms results in tax of $24,000 under the new minimum rate. The same gain under the current discount method would result in tax of $18,500, but that method will not be available for the post-July portion unless the property qualifies as a new build. The timing of your purchase relative to 1 July determines how much of your future gain is taxed under each regime, and the difference compounds over a long hold period.

Loan Features That Support Tax Deductibility and Compliance

The ATO requires clear separation between borrowings for investment purposes and borrowings for private purposes. If you draw down an investment loan and use part of the funds for a private expense, the interest on that portion is not deductible. If you later make additional repayments and then redraw, the ATO applies those repayments to the deductible portion first, meaning any redraw is treated as non-deductible. The only way to preserve full deductibility is to avoid redrawing for private purposes entirely, or to refinance and split the loan into separate accounts with documented purposes.

Lenders offer investment loan products with split loan functionality, where your total approved limit is divided into multiple sub-accounts, each with its own balance, rate, and offset. A common structure is one sub-account for the property purchase, one for future renovations or improvements, and one for holding costs or shortfall funding. Each sub-account is drawn only for its stated purpose, and interest on each remains deductible to the extent it relates to producing rental income. Setting this structure up at the outset costs nothing additional and avoids the need to refinance later to separate contaminated funds. Investors who fail to structure their loans this way often discover the issue only when their accountant queries the deductibility of interest at tax time, by which point the contamination has occurred and the only remedy is a costly restructure. You can learn more about loan structures that support portfolio growth and how we help investors set up compliant, flexible arrangements from the start.

Choosing Lenders Based on Serviceability Policy and Rate Discounts

Each lender applies a different serviceability buffer, different rental income shading, and different policy treatment of expenses such as body corporate fees and property management costs. One lender may assess rental income at 80 per cent of the lease amount, while another assesses it at 100 per cent and separately deducts estimated expenses. The difference in borrowing capacity between those two approaches can exceed $50,000 on the same income and deposit. Rate discounts also vary by lender, loan amount, and LVR, with the deepest discounts typically reserved for loans above $500,000 at an LVR below 80 per cent.

Brisbane investors purchasing units in inner-city suburbs with high body corporate fees often find that lenders who assess rental income at 100 per cent and deduct actual body corporate costs provide higher borrowing capacity than lenders who shade rental income to 80 per cent and ignore the body corporate component. The published rate is less relevant than the discount applied to that rate, and the discount is negotiable based on loan size and your overall relationship with the lender. Investors who approach a single bank directly receive the standard published discount, while brokers with access to multiple lenders and volume-based pricing often secure an additional 0.10 to 0.20 per cent reduction, which saves several thousand dollars annually on a typical loan amount. Our approach focuses on matching your structure to the lender whose serviceability policy and pricing delivers the highest net borrowing capacity and lowest after-discount rate, not the lender with the lowest advertised rate. More detail on how we assess investment loan options from banks and lenders across Australia is available on our investment loans page.

Stamp Duty, Holding Costs, and Claimable Expenses in Your First Year

Stamp duty on investment property purchases in Queensland is calculated on the full purchase price and is payable at settlement. Stamp duty is not deductible as an expense but is added to the cost base of the property for capital gains tax purposes. Other upfront costs, including legal fees, building and pest inspections, and loan establishment fees, are either deductible in the year incurred or added to the cost base depending on their nature. Ongoing holding costs, including council rates, insurance, property management fees, repairs, and loan interest, are deductible in the year they are incurred to the extent the property is rented or genuinely available for rent.

Investors purchasing in suburbs such as New Farm or Teneriffe, where body corporate fees commonly exceed $4,000 per year, should factor those fees into their cash flow projection and confirm they are deductible in full. Lenders Mortgage Insurance, if payable, is deductible over five years or the term of the loan, whichever is shorter. The first year of ownership typically generates the largest loss because you incur settlement costs, pay interest on the full loan amount, and may experience vacancy while the property is tenanted. Maximising your deductible expenses in that first year reduces your overall tax liability and improves your cash flow, provided the property was purchased before the negative gearing restrictions apply or qualifies as an eligible new build.

Brisbane's investor market has absorbed the DTI limits without material disruption because most investors entering with a 20 per cent deposit and moderate existing debt sit comfortably within the six-times threshold. The investors constrained by the new rules are those stretching to a second or third purchase with high existing exposure, or those attempting to enter with a 10 per cent deposit and LMI while carrying significant non-property debt. The legislation passed in June and September clarifies the tax treatment for the next decade, which removes one layer of uncertainty but compresses the window in which you can acquire established property and retain full negative gearing on the pre-July portion of any gain. If your deposit, income, and borrowing capacity support a purchase now, the structure you choose today will either compound your advantage or limit your options when you return for your second loan.

Call one of our team or book an appointment at a time that works for you. We structure first investment loans for Brisbane buyers who plan to hold long-term, build equity across multiple properties, and minimise tax on the way through.

Frequently Asked Questions