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Tax Depreciation Calculator Australia — FY 2025-26

A tax depreciation estimator calculator Australia helps property investors estimate the annual depreciation deductions available for their investment property.

People Also Ask

Division 43 covers the building structure at 2.5% per year for 40 years. Division 40 covers plant and equipment assets like carpets and appliances, depreciating at varying rates depending on their effective life.
Yes, Division 43 building depreciation can be claimed on properties built after 1987 (residential) or 1982 (commercial) for up to 40 years. Division 40 may also apply to older properties if assets have been recently installed.
A quantity surveyor report is the only way to claim the full tax depreciation entitlement. The report provides ATO-compliant estimates of both Division 43 and Division 40 deductions specific to your property.
Yes, from May 2017, the ATO restricted Division 40 claims for residential investment properties purchased after that date. Only brand-new assets installed by the current owner can be claimed, not second-hand assets.
4 min readLast updated: 2026-05-26

About the Tax Depreciation Estimator Calculator

A tax depreciation estimator calculator Australia helps property investors estimate the annual depreciation deductions available for their investment property. Depreciation is one of the most valuable tax benefits available under ATO rules, allowing investors to reduce their taxable income without any cash outlay. This tool provides a reliable estimate based on property type, age, and value.


What is the Tax Depreciation Estimator Calculator?

This calculator estimates the annual capital works (Division 43) and plant and equipment (Division 40) depreciation deductions for Australian residential investment properties. Division 43 allows a deduction of 2.5% per year on the construction cost of the building structure, capped at 40 years from construction completion. Division 40 covers plant and equipment assets such as carpets, blinds, air conditioning, hot water systems, and kitchen appliances, with effective lives varying from 4 to 20 years. The calculator inputs the property's construction year, construction cost or estimated cost, and estimates of eligible plant and equipment assets. It also accounts for recent ATO legislative changes restricting plant and equipment claims for properties purchased after May 2017 where the previous owner had claimed depreciation. The tool provides an estimated first-year and ongoing annual depreciation amount, helping investors understand the potential tax benefit. Australian property investors use this estimate to decide whether to commission a full depreciation schedule from a quantity surveyor, which is the only way to claim the full entitlement.


How to Use This Calculator

  1. 1Enter the property construction year: Input the year the building was constructed or completed.
  2. 2Enter the construction cost: Input the estimated or actual construction cost of the building structure.
  3. 3Select the property type: Choose whether the property is a house, apartment, or unit.
  4. 4Enter estimated plant and equipment value: Input the total estimated value of depreciable assets in the property.
  5. 5Select purchase date: Input the date you purchased the property to determine eligibility for Division 40 claims.
  6. 6Enter your marginal tax rate: Input your ATO marginal tax rate including Medicare Levy.
  7. 7Review your depreciation estimate: The calculator shows Division 43 deductions, Division 40 deductions, and total annual tax benefit.

Worked Australian Example

Practical Example

Priya purchased a two-bedroom apartment in South Brisbane, QLD in January 2024 for $550,000. The apartment was built in 2018 with an estimated construction cost of $320,000. The plant and equipment assets including carpets, blinds, air conditioning, and kitchen appliances are valued at $25,000. Priya's marginal tax rate is 37%. Using the calculator, she enters 2018 as the construction year, $320,000 as construction cost, apartment as property type, $25,000 as plant value, 2024 as purchase year, and 37% as tax rate. The calculator estimates Division 43 deductions of $8,000 per year (2.5% of $320,000). For Division 40, the assets depreciate at varying rates, with a first-year estimate of $3,500 reducing over time. Total first-year depreciation is $11,500. At 37%, the tax benefit is $4,255. Priya now has a clear estimate of her depreciation entitlement and commissions a full quantity surveyor report to confirm the exact figures and maximise her ATO-compliant deductions.


Common Tax Depreciation Estimator Calculator Questions

Division 43 covers the building structure at 2.5% per year for 40 years. Division 40 covers plant and equipment assets like carpets and appliances, depreciating at varying rates depending on their effective life.
Yes, Division 43 building depreciation can be claimed on properties built after 1987 (residential) or 1982 (commercial) for up to 40 years. Division 40 may also apply to older properties if assets have been recently installed.
A quantity surveyor report is the only way to claim the full tax depreciation entitlement. The report provides ATO-compliant estimates of both Division 43 and Division 40 deductions specific to your property.
Yes, from May 2017, the ATO restricted Division 40 claims for residential investment properties purchased after that date. Only brand-new assets installed by the current owner can be claimed, not second-hand assets.
Yes, depreciation deductions increase the net loss on a negatively geared property, which reduces your taxable income. This can result in a higher tax refund while improving your after-tax cash flow.


Reviewed by

BizMetrixs Team

Australian Financial Specialists

This Tax Depreciation Calculator Australia calculator provides estimates only. Results are based on ATO 2025-26 published rates and general calculation methods. Individual circumstances may vary. This tool is for informational and educational purposes only and does not constitute financial, tax, or legal advice. For personalised advice, consult a registered tax agent or financial adviser.