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What is a Depreciation Clause in a Building Insurance Policy?

Published 26 June 2026 · Last updated 26 June 2026

Quick Answer

A depreciation clause in a building insurance policy reduces the payout on claims by accounting for the asset's age and wear. It affects the amount you receive when claiming for repairs or replacements. Understanding this clause is crucial for investors to ensure adequate coverage.

A depreciation clause in a building insurance policy is a provision that accounts for the decrease in value of a property or its components over time due to age, wear and tear. This clause plays a significant role in determining the payout you receive when you file a claim for damage or loss. Knowing how this clause works can help investors and landlords manage their insurance expectations and ensure they have adequate coverage.

Under a typical building insurance policy, the depreciation clause applies to claims involving repairs or replacements. When you make a claim, the insurer calculates the payout based on the current value of the damaged asset, not its original purchase price. This means the older or more worn out an item is, the less you might receive to repair or replace it. For example, if a roof with a 20-year lifespan is 15 years old when damaged, the insurer may only cover a portion of the replacement cost, reflecting the roof's depreciated value.

To see how this plays out, consider a scenario involving a 2010-built apartment in Sydney valued at $900,000. Suppose a storm causes significant roof damage, and the replacement cost is estimated at $30,000. Given the roof's 20-year lifespan and its current age of 13 years, the insurer applies depreciation. Roughly 65% of the roof's life has been used, so the insurer might only cover 35% of the replacement cost, equating to $10,500. The remaining $19,500 would need to be covered by the owner.

In our experience reviewing thousands of properties across Australia, we find that many investors overlook the implications of depreciation clauses until they make a claim. Often, they are surprised by out-of-pocket costs due to underestimated depreciation. Another common oversight is failing to update insurance policies after renovations, leading to underinsurance. Investors frequently miss out on the opportunity to negotiate terms that better fit their property's needs or fail to compare policies for more favourable depreciation terms.

The answer can differ depending on your situation. Policies differ substantially between insurers, and the age and condition of your property can significantly affect depreciation calculations. For properties purchased post-9 May 2017, if the building is new, depreciation might be less of an issue initially, but it becomes more pertinent as the property ages. In contrast, older properties may have more significant depreciation impacts from the start. If you own a commercial property, note that commercial insurance policies may have different terms and benefits concerning depreciation.

Understanding the specifics of your insurance policy, including any depreciation clauses, is crucial. A Chartered Quantity Surveyor can provide a detailed understanding of how depreciation affects your property and insurance cover, while an accountant can help align this with your financial strategy. Together, they ensure you are not underinsured and help optimise your insurance and tax positions.

  • Review your current building insurance policy to identify any depreciation clauses.
  • Consult with your insurer to understand how depreciation is calculated for your property.
  • Consider obtaining a valuation from a Chartered Quantity Surveyor to better understand your property's current value.
  • Compare policies from different insurers to ensure you have adequate coverage, especially concerning depreciation.
  • Regularly update your insurance policy to reflect any renovations or significant changes to your property.
  • Work with an accountant to integrate insurance considerations into your broader financial strategy.
  • Frequently Asked Questions

    How does depreciation affect my insurance claim?

    Depreciation reduces the payout you receive by accounting for the age and wear of damaged property, meaning you may receive less than the replacement cost.

    Can I negotiate the terms of a depreciation clause?

    Yes, you can negotiate with your insurer for more favourable terms, especially if your property has been well-maintained or recently renovated.

    Does the depreciation clause apply to all types of damage?

    Typically, it applies to claims involving repairs or replacements of physical components, not to temporary accommodation or liability claims.

    Are there state-specific variations in depreciation clauses?

    While the core concept is similar, specific terms and conditions may vary by state due to differing regulations and market practices.

    How should I report depreciation on my tax return?

    Depreciation for tax purposes is separate from insurance. Consult your accountant to ensure accurate reporting and compliance with ATO requirements.

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