Investment Loans & Tax: Avoid These 5 Costly Mistakes

The way you structure your investment loan directly determines which deductions you can claim and how much tax you'll pay when you sell.

Recent changes announced in the Federal Budget mean that the timing and type of property you buy now affects your tax position for decades. If you're considering an investment property in Brighton or the surrounding Bayside area, understanding these changes before you apply for finance can save you significant money and help you avoid locking in a structure that limits your options later.

Not Understanding How Negative Gearing Rules Changed in May 2026

Negative gearing allows you to offset rental losses against your other income, reducing your overall tax. Under new rules taking effect from July 2027, this only applies to properties purchased before 13 May 2026. If you buy an established residential property after that date, rental losses can only be offset against other residential property income or capital gains, not your salary.

Consider a buyer who purchased an established apartment in Brighton on 10 May 2026. They pay $850,000 with a 20% deposit and borrow $680,000 on an interest-only investment loan. Their rental income is $650 per week, but loan interest, body corporate fees, and other holding costs total $780 per week. The $6,760 annual shortfall can be claimed against their salary, reducing their taxable income. A similar buyer purchasing the same type of property on 20 May 2026 cannot claim that loss against salary from July 2027 onwards. They can carry the loss forward to offset against future rental income or capital gains, but the immediate tax benefit disappears.

This doesn't mean established properties are no longer viable after the cutoff date. It means the cash flow looks different, and you need more equity or rental income to service the loan without relying on tax refunds to cover the gap.

Choosing the Wrong Loan Structure for Your Deductions

Every dollar of interest you pay on an investment loan is generally tax deductible, but only if the loan is used exclusively for investment purposes. Mixing personal and investment funds in the same loan account can compromise your ability to claim the full deduction.

If you redraw funds from your investment loan to pay for personal expenses like a holiday or car, the portion of interest attributable to that withdrawal is no longer deductible. The Australian Taxation Office tracks the purpose of borrowed funds, not the security. Using an offset account linked to your investment loan rather than redrawing keeps your personal savings separate and preserves the full deductibility of the loan interest.

In situations where you plan to use equity from your home to fund an investment deposit, the new borrowing should be structured as a separate split or loan account. That way, the interest on the amount used for investment remains fully deductible, while interest on your owner-occupied portion does not.

Missing Claimable Expenses Beyond Loan Interest

Loan interest is the largest deduction most property investors claim, but it's not the only one. Ongoing costs like property management fees, landlord insurance, council rates, water charges, strata levies, and repairs are also deductible in the year they're incurred.

Depreciation on the building structure and fixtures can add thousands to your annual deductions without any ongoing cost. For properties built after 1985, you can claim capital works deductions at 2.5% per year over 40 years. Plant and equipment depreciation applies to items like air conditioners, blinds, and carpets. A quantity surveyor's report, which typically costs between $500 and $800, sets out what you can claim. The report fee itself is tax deductible.

Borrowing costs, including loan establishment fees, lender's mortgage insurance, and broker fees, can be deducted over five years or the life of the loan, whichever is shorter. Stamp duty on the property purchase is not immediately deductible, but it's added to your cost base, which reduces capital gains tax when you sell.

Ignoring How Capital Gains Tax Rules Shifted from July 2027

The 50% capital gains tax discount that applied to investment properties held for more than 12 months has been replaced with a cost base indexation model for properties purchased after 12 May 2026. Instead of discounting the gain by 50%, your purchase price is adjusted for inflation, and you pay tax on the real gain. A minimum 30% tax rate applies to capital gains under the new system, with some exemptions for pensioners and social security recipients.

Properties purchased before 13 May 2026 remain under the old rules, meaning you still receive the 50% discount on gains that accrued up to July 2027. If you're buying a new build after the cutoff, you can choose between the 50% discount and the new indexed model, whichever results in a lower tax bill.

Brighton's median house price has historically appreciated due to its proximity to the beach, Church Street shopping precinct, and well-regarded schools. Over a long hold period, the difference between a 50% discount and inflation indexing can amount to tens of thousands of dollars in tax. The structure you lock in now affects what you pay decades later.

Not Reviewing Your Loan Structure When Circumstances Change

Your investment loan structure should adapt as your portfolio grows. If you start with one property and later want to buy a second, releasing equity from the first property through a refinance or top-up creates a new borrowing. That new amount should be split into its own loan account so the interest remains deductible against the new investment.

Some investors switch from interest-only to principal and interest repayments once they've built enough equity or want to reduce debt before retirement. Others move to a variable rate after fixing to take advantage of offset accounts or make extra repayments without penalty. Both changes affect your tax position. Principal repayments reduce your loan balance but aren't tax deductible, so your annual deductions decrease. Offset accounts linked to variable loans allow you to reduce interest costs without losing deductibility, because the loan balance stays intact.

Refinancing your investment loan to access a lower rate or better loan features can increase your cash flow and improve your ability to service additional borrowing. It's worth reviewing your loan structure every few years, particularly when your fixed rate expires or your property value increases significantly.

The investment loan you choose today shapes your tax position, cash flow, and ability to grow your portfolio over time. Recent changes to negative gearing and capital gains tax mean the timing and structure of your borrowing now carry long-term consequences that weren't as pronounced a year ago. Getting the structure right from the start means you won't need to unwind poor decisions later.

Call one of our team or book an appointment at a time that works for you to discuss how these changes apply to your situation and which investment loan options suit your property strategy.

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