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Tax Depreciation · Koste Knowledge Base

Division 40 vs Division 43: What's the Difference?

Published 26 June 2026 · Last updated 26 June 2026

Quick Answer

Division 40 and Division 43 are parts of the ITAA 1997 that cover tax depreciation. Division 40 concerns plant and equipment, while Division 43 relates to capital works. Understanding which assets fall under each division is crucial for maximising your depreciation claims.

Understanding the nuances of Division 40 and Division 43 is essential for Australian property investors looking to maximise their tax depreciation benefits. These divisions of the ITAA 1997 dictate how you can claim depreciation on different types of assets within your investment property.

Understanding Division 40 and Division 43

Division 40 pertains to plant and equipment, which are assets that can be easily removed from the property, such as appliances, carpets, and air conditioning units. Under Division 40, these items are depreciated over their effective life as determined by the ATO. A common misconception is that all items within a property can be depreciated under Division 40, but this is not the case.

On the other hand, Division 43 covers capital works, which include the structural elements of a building, such as walls, floors, and roofs. These items are generally depreciated at a rate of 2.5% per year over 40 years for residential properties built after 16 September 1987. It's important to note that Division 43 does not apply to the cost of land or landscaping.

How This Works in Practice

Consider a 2015-built 3-bedroom house in Sydney purchased for $900,000. The property includes a $20,000 kitchen with appliances and a $15,000 air conditioning system. Under Division 40, the kitchen appliances and air conditioning can be depreciated over their effective lives. Assuming an average effective life of 10 years for these items, the first-year depreciation might be $3,500, which could result in a tax saving of $1,295 at a 37% marginal tax rate.

For Division 43, if the construction cost of the building was $300,000, you could claim $7,500 annually for capital works. This results in a tax saving of $2,775 annually at the same tax rate.

Professional Insight

In our experience, many investors overlook the importance of a depreciation schedule prepared by a qualified quantity surveyor. This document ensures all claimable items are correctly identified under the appropriate division. One thing we frequently see is investors missing out on significant deductions due to not updating their depreciation schedule after renovations. Additionally, while Division 43 deductions are straightforward, Division 40 requires careful consideration of the effective life of each asset, which is often underestimated.

When Does the Answer Change?

  • Properties Acquired Post-9 May 2017: Investors who acquired second-hand residential properties after this date cannot claim Division 40 on previously used assets.
  • Pre-1987 Buildings: Properties built before 16 September 1987 are generally ineligible for Division 43 deductions unless significant renovations have occurred.
  • Commercial Properties: Different depreciation rates and rules apply compared to residential properties.
  • Joint Ownership: The claimable amount is split according to ownership percentage.
  • When Should You Seek Professional Advice?

    While understanding these divisions is fundamental, the specifics of your property and financial situation can significantly affect your depreciation claims. Engaging a Chartered Quantity Surveyor to prepare a detailed depreciation schedule is advisable, as it can identify all potential deductions. An accountant can then integrate these deductions into your tax return, ensuring compliance and maximisation of benefits.

    What to Do Next

  • Identify whether your property is eligible for Division 40 and Division 43 claims.
  • Engage a Chartered Quantity Surveyor to prepare a comprehensive depreciation schedule.
  • Review your current depreciation schedule annually, especially after renovations.
  • Consult with your accountant to ensure all deductions are correctly claimed in your tax return.
  • Stay Updated on any legislative changes that may affect your depreciation entitlements.
  • Keep Records of all renovations and improvements for accurate future claims.
  • Frequently Asked Questions

    Can I claim Division 40 on a second-hand property?

    If you acquired the property after 9 May 2017, you cannot claim Division 40 on previously used plant and equipment.

    How does Division 43 apply to commercial properties?

    Division 43 applies to commercial buildings, but the rates and eligibility criteria differ from residential properties. Consult a professional for specifics.

    What happens if I renovate my property?

    Renovations can impact both Division 40 and Division 43 claims. A new depreciation schedule is recommended to maximise deductions.

    Are there state-specific rules for Division 40 and 43?

    While the divisions themselves are federal, certain state incentives or grants may affect your overall tax position. It's best to consult a local expert.

    How do I report depreciation on my tax return?

    Depreciation is reported in your tax return under rental property expenses. Your accountant can ensure these are correctly itemised.

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