Investment Property Depreciation Australia: How to Claim It, What It's Worth, and What Most Investors Miss

Depreciation is the single largest tax deduction available to most Australian investment property owners — and the one most frequently underclaimed. A well-documented depreciation schedule on a residential investment property typically generates $5,000 to $15,000 in additional tax deductions per year, worth $2,350 to $7,050 annually in tax savings at a 47% marginal rate.

Yet many investors either do not have a depreciation schedule at all, or have one that was prepared once and never updated. This guide explains exactly how property depreciation works in Australia, what you can claim, what the post-2017 rule changes mean, and what a depreciation schedule is actually worth in dollar terms at your income level.

Depreciation is a tax deduction that reflects the decline in value of assets over time. For investment property in Australia, there are two types of depreciation deductions:

Division 43 — Capital Works Deduction: This covers the structural elements of the building itself — the concrete, brickwork, roof, walls, windows, and other structural components. The ATO allows you to deduct 2.5% of the original construction cost of the building each year for 40 years. If the building cost $300,000 to construct, you can deduct $7,500 per year in capital works allowance.

Division 40 — Plant and Equipment Depreciation: This covers removable assets inside the property — carpets, blinds, dishwashers, air conditioning units, hot water systems, stoves, and hundreds of other items. Each item has an effective life assigned by the ATO and is depreciated individually over that life, either using the prime cost method (equal amounts each year) or the diminishing value method (larger deductions in earlier years).

The combination of both deductions — Division 43 capital works and Division 40 plant and equipment — is what a quantity surveyor captures in a tax depreciation schedule.

In May 2017, the Federal Budget introduced changes to plant and equipment depreciation for residential investment properties. These changes significantly affected which properties could claim Division 40 deductions and are still widely misunderstood.

What changed: For residential investment properties where the contract of purchase was signed after 7:30pm on 9 May 2017, plant and equipment (Division 40) depreciation can only be claimed on assets you directly purchase — not on second-hand assets already in the property when you bought it. The carpets, blinds, and dishwasher that the previous owner installed are no longer deductible for the new owner.

What did not change:

• Division 43 capital works deductions are completely unaffected — you can still claim 2.5% of the original construction cost regardless of when you purchased the property
• Properties purchased before 10 May 2017 are fully grandfathered — both Division 43 and Division 40 claims continue unchanged
• New properties (purchased off the plan or newly built) are fully eligible for both Division 43 and Division 40 on all items — because you are the first owner of the plant and equipment
• Renovations and capital improvements you make yourself after purchase are fully depreciable regardless of when you bought the property

The practical effect: new properties provide significantly higher depreciation deductions than established properties purchased after May 2017. This is one of the reasons new property has remained attractive to investors despite often lower gross yields.

The value of depreciation deductions depends on three factors: the property type, the construction date, and your marginal tax rate.

Scenario 1: New apartment purchased for $600,000, construction cost approximately $400,000

Division 43 deduction: 2.5% x $400,000 = $10,000/year
Division 40 deductions (first year, diminishing value): approximately $4,000 to $6,000
Total depreciation deductions year 1: approximately $14,000 to $16,000
Tax saving at 47% marginal rate: approximately $6,580 to $7,520 per year

Scenario 2: Established house purchased for $750,000, built 2005, purchased post-May 2017

Division 43 deduction: 2.5% x estimated construction cost $220,000 = $5,500/year (for remaining 25 years of 40-year life)
Division 40 deductions: nil for second-hand assets (post-2017 rules); any capital improvements you make are depreciable
Total depreciation deductions: approximately $5,500/year
Tax saving at 47% marginal rate: approximately $2,585 per year

Scenario 3: House purchased 2012, $600,000, grandfathered pre-2017 rules

Division 43 deduction: approximately $5,000/year
Division 40 deductions (remaining effective life on original items): approximately $2,000 to $4,000/year
Total: approximately $7,000 to $9,000/year
Tax saving at 47% marginal rate: approximately $3,290 to $4,230 per year

A tax depreciation schedule is prepared by a quantity surveyor — a construction cost specialist who is qualified to estimate construction costs and assign depreciation values to building components and plant and equipment items.

The process: The quantity surveyor inspects the property (or reviews builder documentation for new builds), estimates the original construction cost of the building, catalogues all depreciable plant and equipment items, assigns effective lives and depreciation rates to each item, and prepares a year-by-year schedule of deductions for the life of the property.

Cost: A residential investment property depreciation schedule typically costs $300 to $700. The fee is itself tax deductible. For most properties, the schedule pays for itself in the first month of the first financial year — often within weeks of purchase.

When to get one: As soon as possible after purchase or settlement. The schedule covers the full financial year in which it is prepared, so delays mean lost deductions. There is no backdating of depreciation — you claim from the year the schedule is in place.

Who does it: Use a quantity surveyor who is a member of the Australian Institute of Quantity Surveyors (AIQS). The ATO requires depreciation estimates for investment properties to be prepared by a suitably qualified person — your accountant cannot estimate construction costs themselves.

Depreciation deductions are non-cash — you do not spend money to claim them. This makes them extremely valuable in the context of negative gearing, because they increase your deductible losses without any additional out-of-pocket cost.

A property that is otherwise cash flow neutral can become strongly negatively geared — and generate significant tax refunds — once depreciation deductions are added. This is intentional and is one of the primary tax efficiency tools available to Australian property investors.

Example: An investment property generates $30,000 in annual rental income and incurs $28,000 in deductible cash costs (interest, rates, management fees, repairs). Without depreciation, the taxable loss is $2,000. With $10,000 in depreciation deductions, the taxable loss becomes $12,000. At a 47% marginal rate, the additional $10,000 in deductions generates an extra $4,700 in tax savings — entirely from a non-cash deduction.

For the full picture on negative gearing and what is changing: negative gearing Australia: what is actually changing in 2027.

This is the part most investors do not think about until they sell — and by then it is too late to change anything.

Division 40 plant and equipment depreciation deductions claimed during ownership reduce the cost base of those assets. When you sell the property, the ATO may require you to include a balancing adjustment in your assessable income — effectively recouping some of the depreciation claimed if the assets sold for more than their written-down value.

Division 43 capital works deductions claimed after 13 May 1997 also reduce the cost base of the building, which increases your capital gain at sale. At the 2026 effective CGT rate of 30% for individuals, every $10,000 in Division 43 deductions claimed adds approximately $3,000 to your CGT bill at sale.

This sounds alarming but the maths still works strongly in favour of claiming depreciation. The deduction is claimed at your marginal tax rate (up to 47%) in the year it is claimed, while the CGT consequence arises later and at the discounted CGT rate (effectively 30%). You are borrowing from the future at 30% to get a refund today at 47% — that is a good trade.

The key point: track all depreciation claimed carefully. Your accountant needs these figures to calculate your cost base correctly at sale. Poor record-keeping here creates CGT errors. For the full CGT picture: capital gains tax on investment property Australia: what you will actually pay in 2026.

Depreciation deductions inside a self-managed super fund work the same way structurally, but the tax benefit is calculated at the fund tax rate rather than your personal marginal rate.

In accumulation phase, the SMSF pays 15% tax on income. Depreciation deductions offset rental income at 15%. If the deductions exceed the fund's taxable income, unused deductions carry forward to future years.

In pension phase, the SMSF pays zero tax on income. Depreciation deductions have no direct cash value in pension phase because there is no tax to offset. However, they reduce the cost base of the property for the purpose of the CGT calculation if the fund transitions out of pension phase before selling.

For investors with property inside an SMSF, discuss with your SMSF administrator how depreciation is being handled in the fund accounts — it should be part of the annual accounts process. For the broader SMSF property context: the exact process for buying property inside super.

The most common depreciation errors Australian property investors make:

No schedule at all. Surprisingly common, particularly for investors who bought through a buyer's agent or without specialist tax advice. Every year without a schedule is a year of deductions lost permanently.

Schedule not updated after renovations. Capital improvements to the property generate new Division 40 and Division 43 deductions. A kitchen renovation, bathroom upgrade, or new air conditioning system should trigger an update to the depreciation schedule. Many investors do not know this and miss the deductions entirely.

Assuming nothing is claimable on old properties. Division 43 capital works deductions apply to buildings constructed after July 1985. If your property was built after this date and you have not had a schedule prepared, you are almost certainly leaving money on the table regardless of how old the property is or when you bought it.

Not claiming in the year of purchase. You can claim a full year's depreciation deductions in the financial year of purchase, pro-rated from the date of settlement. If you settle in January, you can claim six months of depreciation deductions in that tax year. Investors who purchase late in the financial year sometimes assume they cannot claim for that year.

Not comparing prime cost vs diminishing value methods. For Division 40 items, you can choose either the prime cost method (equal deductions each year) or the diminishing value method (larger deductions earlier). For investors who expect to hold the property for fewer than 10 years, the diminishing value method typically produces higher total deductions over the holding period. Your quantity surveyor should model both for your situation.

Depreciation is not a tax loophole — it is a standard accounting recognition that assets decline in value over time. The ATO provides the framework; the quantity surveyor calculates the numbers; your accountant claims the deductions.

For a high-income Australian investor with a new property, depreciation deductions alone can reduce the annual after-tax holding cost of the investment by $6,000 to $8,000 per year. On an established property, even with the post-2017 rules limiting Division 40 claims, Division 43 capital works deductions still produce $2,000 to $5,000 in annual tax savings.

If you do not have a current depreciation schedule on your investment property, getting one is almost certainly the highest-return task you can complete in an afternoon. The cost is $300 to $700. The payback is typically measured in months, not years.

For the broader strategy framework that connects depreciation to portfolio building: the step-by-step Australian property investment strategy. And for how depreciation interacts with the decision to sell: how to avoid CGT when selling investment property: 7 strategies before you sign.

Book a Strategy Call

If you want to understand exactly what depreciation is worth on your specific property and how it interacts with your tax position, a 20-minute call is a good starting point.

Book a free 20-minute strategy call at: https://www.ausretirementoffice.com.au/book

Disclaimer: The information provided by Australian Retirement Office is general in nature and educational only. It does not constitute financial product advice, legal advice, or taxation advice, and does not take into account your objectives, financial situation, or needs. Australian Retirement Office does not hold an Australian Financial Services Licence (AFSL). Where appropriate, we may refer you to licensed professionals within our partner network. We may receive referral fees for these introductions. All investments carry risk, including potential loss of capital. Past performance is not a reliable indicator of future returns. You should obtain professional advice and review all relevant Product Disclosure Statements (PDS) before making any financial decisions.

Related reading: Negative Gearing Australia: What Is Changing in 2027 | CGT on Investment Property: What You Will Pay in 2026 | How to Avoid CGT When Selling: 7 Strategies | SMSF Property: The Exact Buying Process | Australian Property Investment Strategy