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Renovating · Koste Knowledge Base

How Renovations Affect Your Depreciation Schedule

Published 26 June 2026 · Last updated 26 June 2026

Quick Answer

Renovations can significantly alter your depreciation schedule by increasing your property's capital works deductions under Division 43, and potentially adding new plant and equipment eligible for Division 40. Post-renovation, it's crucial to update your schedule to reflect these changes accurately.

Renovating an investment property can provide significant tax benefits through depreciation. However, understanding how these renovations impact your depreciation schedule is crucial for maximizing these benefits. Renovations typically affect both capital works (Division 43) and plant and equipment (Division 40), and knowing how to adjust your depreciation schedule accordingly can save you money and improve your investment's profitability.

How Renovations Affect Your Depreciation Schedule

When you renovate, you're essentially adding value to your property. Under Division 43 of the Income Tax Assessment Act 1997, you can claim depreciation on the structural elements of your renovations, such as walls, roofs, and fixed assets like kitchen cupboards, as long as the construction commenced after 16 September 1987. For plant and equipment, which are typically removable or mechanical items like air conditioners, carpets, and blinds, Division 40 applies. A common misconception is that any renovation automatically increases depreciation claims, but you must have a valid depreciation schedule that includes these new additions.

How This Works in Practice

Consider a scenario where you purchase a 2005-built 3-bedroom house in Richmond, Melbourne, for $850,000. You decide to renovate the kitchen and bathroom, spending $50,000. Before the renovation, your annual depreciation claim was $8,000. Post-renovation, your quantity surveyor assesses the new kitchen and bathroom under Division 43, adding $40,000 to your capital works deductions. Additionally, new appliances and fixtures worth $10,000 are added under Division 40. This increases your annual depreciation claim to $13,000. At a 37% marginal tax rate, this adjustment saves you an additional $1,850 in tax annually.

Professional Insight

In our experience, many investors underestimate the impact of renovations on their depreciation schedules. One thing we frequently see is investors failing to update their schedules post-renovation, missing out on potential deductions. What most investors don't realise is the importance of a professional assessment by a Chartered Quantity Surveyor to capture every eligible deduction. Another common oversight is misunderstanding the effective life of new assets, which can vary significantly and affect depreciation rates.

When Does the Answer Change?

  • Properties Acquired Post-9 May 2017: If you acquired a second-hand residential property after this date, you can't claim Division 40 depreciation on previously used plant and equipment.
  • Pre-1987 Buildings: Buildings constructed before 16 September 1987 generally aren't eligible for Division 43 deductions unless renovations have been done post this date.
  • Commercial Properties: Different rules may apply, especially concerning plant and equipment depreciation.
  • Partial Year Ownership: If you renovate and sell within the same tax year, your depreciation claim may be prorated.
  • When Should You Seek Professional Advice?

    It's essential to seek advice when you're unsure about the depreciation implications of your renovations. A Chartered Quantity Surveyor can provide a detailed depreciation schedule, ensuring you claim all eligible deductions. Your accountant can integrate this into your overall tax strategy, particularly if your renovations are part of a broader investment plan.

    What to Do Next

  • Plan Your Renovations: Determine which improvements will add value and are eligible for depreciation.
  • Consult a Quantity Surveyor: Get a professional assessment to update your depreciation schedule.
  • Review Division 43 and 40: Understand which parts of your renovation fall under each division.
  • Update Your Schedule: Ensure your depreciation schedule reflects all new work and assets.
  • Speak to Your Accountant: Integrate your updated schedule into your tax planning.
  • Keep Records: Maintain detailed records of all renovation costs and dates.
  • Frequently Asked Questions

    Can I claim depreciation on DIY renovations?

    Typically, you cannot claim depreciation for your own labour. However, the cost of materials and any hired tradespeople can be included in your depreciation schedule.

    How are renovations treated in a tax return?

    Renovations should be detailed in your depreciation schedule, which your accountant will use to claim deductions in your tax return under the appropriate divisions.

    Do renovations affect CGT?

    Yes, renovations can increase your property's cost base, potentially reducing your capital gains tax liability when you sell.

    Are there state-specific rules for renovation depreciation?

    While the federal tax laws apply uniformly, state-based grants or incentives for renovations can affect your overall investment return.

    What's the impact of partial year renovation on depreciation?

    Depreciation is typically prorated if the renovations are completed partway through the year, affecting the claim for that tax year.

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