For every commercial property and business asset, there is one crucial insurance decision that determines your entire financial recovery after a major loss like a fire or severe storm. That decision is choosing the method of valuation: Replacement Cost or Indemnity Value.
With rising construction costs and inflation, getting this choice wrong – or simply being out of date – is the single biggest policy mistake a business can make. It is the core reason that the majority of Australian businesses are currently underinsured.
Here is Steadfast Eastern’s guide to the essential differences and, most importantly, the hidden pitfalls you must avoid.
Replacement Cost Value (RCV), often referred to as Reinstatement Value, is the gold standard for commercial insurance. It promises to cover the cost to repair or replace your damaged property or assets with a new one of similar kind and quality, without any deduction for depreciation.
For commercial property, this is the only sensible choice, but your Sum Insured must be accurate to trigger the full benefit.
Your nominated sum can’t simply be based on your property’s market value. To properly reflect the rebuild cost, it must include:
These factors can add 20–30% or more to the true rebuild cost – and are the most common cause of underinsurance when overlooked.
The greatest risk to any business owner holding a Replacement Cost policy is the Co-Insurance Clause (often called the ‘Average’ clause in Australia).
This clause is designed to penalise you for intentionally underinsuring your assets to save on premium. Most policies require you to insure your property for a minimum of 80% or 85% of its actual Replacement Cost.
Most commercial property insurance policies require you to insure your property for at least 80% or 85% of its true Replacement Cost.
If your declared Sum Insured falls below that percentage, the insurer treats you as a co-insurer, reducing your payout — even for partial claims.
| Scenario | Value | Calculation | Payout Result |
| True Replacement Value | $2,000,000 | (100% of required cover) | — |
| Your Sum Insured | $1,000,000 | (You are 50% underinsured) | — |
| Partial Loss Claim | $200,000 | — | — |
| Insurer Pays | — | ($1,000,000 ÷ $2,000,000) × $200,000 | $100,000 |
| Your Shortfall | — | — | $100,000 (50%) |
In this example, your $200,000 claim results in a payout of only $100,000 — because you were underinsured by half.
This penalty applies even on small claims, making accurate valuation critical.
Indemnity Value (also known as Actual Cash Value or ACV) places you in the same financial position as you were immediately before the loss.
This is calculated by the formula:
Indemnity Value=Replacement Cost−Depreciation
However, this approach comes with a warning:
If you insure your building or critical business assets at Indemnity Value, you’ll always face a funding gap when it’s time to rebuild or replace them.
This method should only be used after a careful risk assessment with your insurance broker.
| Feature | Replacement Cost | Indemnity Value |
| Depreciation applied | ❌ No | ✅ Yes |
| Payout covers full rebuild | ✅ Yes | ❌ No |
| Suitable for buildings & key assets | ✅ Yes | ⚠️ Only sometimes |
| Premium cost | Higher | Lower |
| Risk of underinsurance | Lower (if accurate) | Higher |
| Typical use | Commercial buildings, machinery | Older contents or stock |
Choosing the right valuation method is essential, but it is useless without the right number. To protect your business from the devastating impact of the Co-Insurance Clause, follow these three steps:
Don’t wait for a claim to discover you’re carrying a substantial financial burden. Contact Steadfast Eastern today to review your policy and ensure your sums insured accurately reflect today’s true replacement costs. We are here to partner with you to protect your business.
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