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How Long Does a Depreciation Schedule Last in Australia?

Published 26 June 2026 · Last updated 26 June 2026

Quick Answer

A depreciation schedule typically lasts for 40 years in Australia, aligning with the effective life of capital works under Division 43 of the ITAA 1997. However, updates may be needed if significant renovations or changes to the property occur. Regular reviews ensure you're maximising your tax deductions.

A depreciation schedule is a critical tool for property investors in Australia, serving as a roadmap for claiming tax deductions on the wear and tear of your investment property. But how long does this schedule last, and when should it be updated?

Lifespan of a Depreciation Schedule

In Australia, a depreciation schedule generally lasts for 40 years. This duration aligns with the effective life of capital works as outlined under Division 43 of the Income Tax Assessment Act 1997 (ITAA 1997). This means that once a schedule is prepared, it can be used to claim deductions for up to 40 years from the date of construction of the property. However, the effective life of plant and equipment items, covered under Division 40, can vary significantly. For example, carpet might have an effective life of 8 years, while an air conditioning unit might last between 10 and 15 years. The most common misconception among investors is that a depreciation schedule is a one-time document. In reality, it should be reviewed and potentially updated if there are significant changes, such as renovations or new assets being added to the property.

How This Works in Practice

Consider a 2008-built 3-bedroom house in Parramatta, Sydney, purchased for $850,000. The depreciation schedule prepared for this property allows the owner to claim deductions on capital works for 40 years from 2008, ending in 2048. If the property owner undertakes a major renovation in 2023, costing $100,000, the schedule should be updated to include these new works. Assuming the renovation qualifies entirely under Division 43, and the owner is in the 37% tax bracket, this could lead to additional tax deductions of approximately $2,500 annually, saving $925 in tax each year.

Professional Insight

In our experience, many investors overlook the need to update their depreciation schedule after renovations. One thing we frequently see is investors missing out on additional deductions because they haven't accounted for new assets or capital works. What most investors don't realise is that even small changes, like upgrading kitchen appliances, can impact their deductions. Regularly reviewing your schedule with a Chartered Quantity Surveyor ensures that you capture every possible deduction. Also, remember that the effective lives of different plant and equipment items mean they depreciate at different rates, so a one-size-fits-all approach won't maximise your benefits.

When Does the Answer Change?

  • Post-9 May 2017 Acquisitions: For properties acquired after this date, previously used plant and equipment cannot be depreciated by the new owner.
  • Pre-1987 Buildings: Properties built before 1987 generally aren't eligible for Division 43 deductions unless substantial renovations have been made.
  • Significant Renovations: Major renovations can reset the depreciation clock for new works, requiring an updated schedule.
  • Commercial Properties: Depreciation schedules for commercial properties may have different durations and rules, especially concerning plant and equipment.
  • When Should You Seek Professional Advice?

    You should consult a Chartered Quantity Surveyor if you have undertaken renovations, added new assets, or if your property portfolio has significantly changed. An accountant's advice is crucial for understanding the tax implications of depreciation claims on your overall tax position. Professional advice ensures your schedule is accurate and compliant with current tax laws, potentially saving you thousands in taxes.

    What to Do Next

  • Review Your Current Schedule: Check when your depreciation schedule was last updated and if it reflects any changes to your property.
  • Consult a QS: Engage a Chartered Quantity Surveyor to review or prepare a new schedule if needed.
  • Document Changes: Keep detailed records of any renovations or improvements, including costs and dates.
  • Speak to Your Accountant: Discuss how depreciation affects your tax position and any strategic changes you might consider.
  • Plan for Renovations: If considering renovations, factor in potential depreciation benefits and update your schedule accordingly.
  • Frequently Asked Questions

    How often should I update my depreciation schedule?

    You should update your depreciation schedule whenever there are significant changes to your property, such as renovations or new assets being added. Regular reviews ensure all potential deductions are captured.

    Does the schedule need to be updated if I change tenants?

    Changing tenants does not typically require an update to your depreciation schedule unless you have made property improvements specifically for new tenants.

    How does a depreciation schedule affect my tax return?

    A depreciation schedule allows you to claim deductions for the depreciation of your property, reducing your taxable income and potentially lowering your tax liability.

    Are there state-specific rules for depreciation schedules?

    Depreciation rules are governed by federal tax law, so they apply uniformly across all Australian states. However, local property laws can affect the classification of renovations.

    What happens if I sell the property before the schedule ends?

    If you sell your property, you cease to claim depreciation deductions. The remaining undepreciated value may impact your capital gains tax calculation.

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    Written by Koste Team · Koste Chartered Quantity Surveyors · AIQS Member · RICS Member · TPB Registered · 1300 669 400 · info@koste.ai