Investment Property Tax Deductions in Australia: What You Can Claim

If you own a rental property, the deductions you claim each year make a large difference to your after-tax return. Australian tax law lets you deduct most of the costs of owning and running an income-producing property against your rental income, and often against your other income as well. But the rules are specific, the Australian Taxation Office (ATO) reviews rental claims closely every year, and the difference between a repair and an improvement, or a claimable and a non-claimable asset, decides whether a deduction stands.

This guide lists every major investment property tax deduction you can claim, explains how property depreciation works after the 2017 rule change, shows a worked example, and covers the negative gearing and capital gains tax reforms announced for coming years so you can see what applies now and what is ahead.

The Rule Behind Every Rental Property Deduction

A cost is deductible when it is incurred in earning your rental income and the property is genuinely available for rent. Three conditions decide most claims:

Investment Property Tax Deductions You Can Claim

The deductions below fall into two groups: costs you claim in full in the year you incur them, and costs you claim over several years through depreciation. This table summarises the immediate deductions; depreciation is covered in its own section.

Loan Interest: The Largest Deduction

1. Loan Interest

Interest on the loan used to purchase or improve your investment property is usually the single largest deduction. You claim the interest charged for the period the property is rented or available for rent. If you redraw on the loan for a private purpose, such as a car or a holiday, that portion of the interest ceases to be deductible, so keeping investment and private borrowings separate matters. If you are arranging or refinancing an investment loan, our mortgage broker in Adelaide can structure it with the deduction in mind.

2. Council Rates, Water and Land Tax

Council rates, water service and usage charges, and state land tax on the property are all deductible for the periods the property is producing income. Land tax rules and thresholds differ by state, and land tax is deductible in the income year to which the charge relates, rather than always the year you pay it.

3. Property Management and Agent Fees

Commission paid to a managing agent, letting and re-letting fees, and the cost of preparing the lease are all deductible. If you manage the property yourself, you can still claim the genuine running costs of doing so, such as advertising, phone and postage relating to the rental.

4. Insurance

Building insurance, contents insurance for items you provide, and landlord insurance that covers loss of rent and tenant damage are fully deductible. Landlord insurance in particular is often overlooked, yet it is entirely claimable.

5. Repairs and Maintenance vs Improvements

This is the distinction the ATO scrutinises most. A repair restores something to its original working condition and is deductible immediately. An improvement makes something better than it was, or replaces an entire asset, and must be depreciated over time.

6. Advertising, Body Corporate and Other Running Costs

Advertising to find tenants, body corporate administrative and general-fund levies, gardening and lawn mowing, pest control, cleaning between tenants, security, and the servicing of appliances or systems you provide are all deductible running costs. Special body corporate levies raised to fund capital improvements are treated as capital works rather than an immediate deduction.

Investment Property Depreciation Explained

Depreciation is the deduction most investors under-claim, because it does not involve writing a cheque each year. Instead it reflects the ageing of the building and its fittings. There are two separate streams, and they follow different rules.

Division 43: Capital works (the building)

Capital works depreciation covers the building structure itself, meaning walls, roof, floors, and fixed items. It is claimed at 2.5% of the original construction cost per year for up to 40 years, where construction began after 15 September 1987. The claim is based on the construction cost, not the price you paid for the property, and it continues for whoever owns the building while the 40-year period runs. Structural renovations a previous owner completed can also qualify, from the date those works were finished.

Division 40: Plant and equipment (the fittings)

Plant and equipment covers removable and mechanical items such as ovens, dishwashers, air conditioners, carpet and blinds. Each has an effective life set by the ATO and is written down over that period. Since new rules that began on 9 May 2017, if you buy an established (second-hand) residential property, you generally cannot claim depreciation on the plant and equipment that came with it. You can only claim on assets you buy and install yourself, or on assets in a brand-new property. The building (Division 43) claim is not affected by this rule.

A Worked Example

The figures below are illustrative only and rounded for clarity. They show how the deductions combine to produce a net rental loss that reduces the owner's other taxable income (a negatively geared position).

Negative Gearing and How It Works

A property is negatively geared when its deductible costs (interest, running costs and depreciation) exceed the rent it earns. The net loss is deducted against your other income, lowering your overall tax for the year. A positively geared property earns more than it costs, so it adds to your taxable income. Negative gearing is a timing and cash-flow strategy, not free money. You are funding a real shortfall in the hope of capital growth over time.

Capital Gains Tax When You Sell

When you sell an investment property for more than its cost base, the net capital gain is added to your income and taxed at your marginal rate. There is no separate capital gains tax. Australian residents who have owned the property for at least 12 months currently receive a 50% CGT discount, so only half of the net gain is taxed. Your main residence is generally exempt, and the six-year rule can preserve that exemption for a period after you move out and rent the home. Every capital works deduction you claimed reduces the cost base and so increases the taxable gain.

What You Cannot Claim

Records You Need to Keep

Rental claims are a standing ATO focus area, and its data-matching program cross-checks rental income and interest against lenders, managing agents and state revenue offices. Keep the loan statements, rates and water notices, land tax assessments, agent statements, insurance certificates, invoices for repairs, and the quantity surveyor's depreciation schedule. You must keep records for at least five years from the date you lodge, and for CGT you keep purchase and sale records for five years after you sell. Our guide on how to avoid a tax audit covers the current rental focus areas in more detail.

Most Overlooked Investment Property Deductions

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  Building depreciation on older properties: many owners assume a pre-2000 property has no capital works claim, but if construction was after September 1987 there is usually a Division 43 deduction running.
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  The quantity surveyor's schedule fee: the cost of the depreciation report is itself deductible.
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  Landlord insurance: fully deductible and frequently missed.
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  Borrowing costs over five years: loan establishment fees, lender's mortgage insurance and title costs over $100 are deductible spread across five years (or the loan term if shorter).
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  Pre-paid interest and expenses: interest and some costs paid in advance before 30 June can be brought into the current year.
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  Apportioned body corporate levies: administrative fund levies are deductible now even though special capital levies are not.

How Ownership Structure Affects Your Deductions

Whether you hold the property in your own name, jointly, through a trust, or through an SMSF changes how income, losses and the CGT discount flow. Personal ownership is simplest and lets you offset a rental loss against your salary; a trust changes how income is distributed and how the CGT discount applies; and an SMSF has its own strict borrowing and compliance rules. The right structure depends on your circumstances and is a decision to make before you buy. This article covers the deductions themselves; for the wider picture, our tax deductions guide explains how property fits alongside your other claims, and our wealth management service in Adelaide looks at the long-term strategy.

How The Kalculators Can Help

Our registered tax agents in Adelaide prepare rental schedules across residential and commercial properties, fold quantity surveyor depreciation schedules into your return, and check the repairs-versus-improvements and post-2017 depreciation rules so your claims stand up to ATO scrutiny. If you also run a business, our small-business tax return service covers the whole picture. If you lodged in the past few years and think you may have missed depreciation or other deductions, we can review prior returns and lodge amendments where warranted.