What are the Tax Rules for Investment Property Loans?

What Changed in May 2026?

Investment property tax rules changed on 12 May 2026. Losses from residential investment properties purchased after 7:30pm AEST on that date can only be offset against other residential property income, not against your teaching salary. Properties you already owned at that time remain under the old rules.

The distinction matters because most teachers funding their first investment property rely on the ability to claim losses against salary income to manage cash flow in the early years of ownership. Under the new rules, that option is no longer available for properties purchased after May 2026. You can still claim those losses, but only against income from other residential properties or against future capital gains when you sell.

Consider a teacher who purchased a unit in regional Queensland in March 2026. Annual rental income is $22,000. Loan interest, council rates, insurance, and management fees total $28,000. The $6,000 loss offsets salary income, reducing taxable income and delivering a refund at tax time. A second teacher who purchased a similar property in the same suburb in July 2026 pays the same costs and earns the same rent, but that $6,000 loss can only be offset against other residential property income. If there is no other property income, the loss is carried forward to offset future property income or capital gains.

How the Grandfathering Rules Work

Any residential investment property you held at 7:30pm AEST on 12 May 2026 continues under the old negative gearing treatment. Losses remain deductible against all income, including salary and wages, for as long as you hold that property.

The rule is based on when you purchased the property, not when you took out the loan. If you refinance an existing investment property to access equity or switch lenders, the grandfathering protection remains in place. If you purchase a new investment property after May 2026, the new rules apply to that property even if the loan is with the same lender or part of a combined facility.

This creates a planning point for teachers building a portfolio. Properties purchased before May 2026 retain flexibility that newer purchases do not. In our experience, buyers who were planning to purchase within the next 12 to 18 months brought those plans forward to lock in the old rules. Others decided the new rules did not materially change their position and proceeded as planned.

What Happens to Losses Under the New Rules?

Losses on properties purchased after May 2026 are not lost. They are carried forward and can be offset against residential property income in future years, including rental income from other properties or capital gains when you sell.

If you hold a single investment property purchased after May 2026 and it runs at a loss each year, those losses accumulate. When you eventually sell and realise a capital gain, the accumulated losses reduce the taxable gain. If you later purchase a second investment property that generates positive cash flow, the carried-forward losses from the first property can offset that income.

The outcome is a timing difference, not a permanent denial of the deduction. The tax benefit is delayed rather than removed. For teachers with a long investment horizon, particularly those building a property portfolio over a decade or more, the deferred deductions may still deliver value. For teachers relying on immediate tax relief to manage cash flow on a single property, the delay creates a material difference.

How Capital Gains Tax Changes from July 2027

From 1 July 2027, the 50 per cent capital gains discount for individuals is replaced by cost base indexation and a 30 per cent minimum tax rate on residential property gains. You index the purchase price in line with inflation and pay tax on above-inflation profits only.

The change applies to gains accruing from 1 July 2027. Gains that accrued before that date remain subject to the 50 per cent discount. If you purchased in 2024 and sold in 2029, part of the gain would be taxed under the old rules and part under the new rules, apportioned based on the holding period before and after 1 July 2027.

For properties held over long periods, indexation may deliver a lower tax outcome than the 50 per cent discount, particularly in high-inflation environments. For properties held for shorter periods or sold in low-inflation years, the 30 per cent minimum rate may result in higher tax. The comparison depends on your marginal tax rate, the inflation rate during the holding period, and the size of the gain.

Does This Affect Owner-Occupied Loans?

No. These changes apply only to residential investment properties. Interest on an owner-occupied home loan has never been deductible, and that position has not changed. The full capital gains tax exemption on your principal place of residence also remains in place.

If you live in a property and later convert it to an investment, the tax treatment depends on when you purchased the property and when you began renting it out. If you purchased before May 2026 and convert it to an investment property after that date, the old negative gearing rules continue to apply because the purchase date determines the treatment. The capital gains rules follow the same approach, with apportionment applying based on the period the property was your main residence and the period it was rented.

Some teachers use a property as their main residence for a period and then rent it out while relocating for work or while building equity to purchase a second property. The tax treatment of that arrangement has not fundamentally changed, but the timing of the conversion and the dates involved will determine which rules apply to which portion of the gain.

What This Means for First-Time Investors

If you are purchasing your first investment property now, the new rules reduce the immediate tax benefit but do not remove the long-term case for property investment. Rental income, capital growth, and deferred tax deductions still contribute to wealth accumulation over time.

The change affects cash flow more than total return. A property that would have delivered a $4,000 annual tax refund under the old rules now requires you to fund that $4,000 from other sources. You recover the deduction later, either when the property generates positive income or when you sell, but the upfront cash flow is tighter. Teachers considering buying their first investment property should factor that difference into serviceability and budgeting.

One option is to target properties with stronger rental yields that generate positive or neutral cash flow from the outset. Another is to structure the loan with an offset account linked to your salary income, reducing interest costs without affecting the deductibility of the loan. A third is to delay the investment purchase until your income or deposit position improves, improving cash flow from day one. Each approach depends on your circumstances, risk tolerance, and timeline.

How Lenders Assess Investment Loans Now

Lenders assess investment loans based on rental income, interest costs, and your ability to service both the investment loan and any existing owner-occupied debt. The tax treatment of losses does not directly change the serviceability calculation, but it does affect your actual cash flow after tax.

Most lenders apply a rental income shading factor, typically assessing 80 per cent of the rental income as available to service the loan. Interest costs are assessed at the loan rate plus a buffer of at least 3.0 percentage points. Your salary income, existing debts, living expenses, and any other commitments are included in the assessment. Debt-to-income limits introduced in February 2026 cap new lending at six times income for no more than 20 per cent of each lender's portfolio, which may affect approval depending on your total borrowing.

If you are refinancing an existing investment property purchased before May 2026, your loan structure and tax treatment remain unchanged. If you are taking out a new loan to purchase a property after May 2026, the lender's assessment does not change, but your personal cash flow position after the loan settles will differ from what it would have been under the old rules.

Call one of our team or book an appointment at a time that works for you. We can walk through how the new tax rules apply to your situation, compare loan options across the panel, and structure the application to support your goals without overcommitting your cash flow.

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