When your insurer declares your car a total loss, the payout you receive depends heavily on how your policy values the vehicle — and whether you understand the rules before lodging the claim. Many Australians discover at the worst possible moment that their payout is less than they expected, or less than they owe on their car loan. This article explains how write-off valuations work, the difference between market value and agreed value, and what you can do if you think the insurer's offer is too low.
A car is declared a total loss (written off) when the cost to repair it exceeds a threshold relative to the vehicle's insured value. Different insurers use different thresholds, typically in the range of 60–80% of the vehicle's value. If repair costs are estimated at $12,000 and the vehicle is worth $15,000, the repair-to-value ratio is 80%. Most insurers at that ratio will declare a total loss rather than authorise repairs, because once repair costs approach the vehicle's value, the risk of hidden damage and ongoing mechanical issues makes repair uneconomical.
Write-offs also occur when a vehicle is stolen and not recovered, or where the damage is structural and the car cannot be certified as roadworthy regardless of repair cost.
This is the most important thing to understand about car insurance write-offs, and it is a distinction that catches many people out at claim time.
| Policy type | How the write-off payout is calculated |
|---|---|
| Market value | The insurer pays what the car was worth in the used car market immediately before the accident — based on their assessment of current market prices for equivalent vehicles. |
| Agreed value | The insurer pays a fixed amount agreed at the time you took out the policy, stated on your Certificate of Insurance. Does not change based on market conditions. |
Most standard comprehensive car insurance policies in Australia default to market value. Agreed value policies typically cost slightly more in annual premiums but provide certainty — you know exactly what you will receive if the car is written off, regardless of market conditions or the insurer's valuation methodology.
New cars depreciate approximately 15–20% in the first year. If you buy a new car for $40,000 and insure it on a market value policy, a write-off 11 months later could result in a payout of $32,000–$34,000 — not $40,000. If you have a $38,000 car loan outstanding, you are left with a gap. Agreed value cover on a new car eliminates this problem during the first few years of ownership.
When assessing market value, insurers use a combination of: published used car price guides (Glass's Guide is the industry standard in Australia), recent private sale and dealer advertised prices for comparable vehicles, the vehicle's age, condition, mileage, service history, and any modifications or accessories. The assessment is conducted by an assessor — either an employee or an independent assessor contracted by the insurer.
The insurer's market value assessment is not always accurate. It may not account for a recent major service, new tyres, or accessories you have added. It may reference sale prices in a different geographic market where that model trades lower. If the offered amount seems inconsistent with what equivalent vehicles are actually selling for in your area, you can challenge it.
If you believe the insurer's market value assessment is too low, the process is:
First, gather evidence of what comparable vehicles are currently selling for. Use Carsales, CarGurus, and private sale listings for your exact make, model, year, and variant with similar mileage. Print or screenshot listings showing prices higher than the insurer's offer. The more comparable listings you can provide, the stronger your position.
Second, submit a formal dispute to the insurer in writing, referencing the specific listings and the gap between their offer and the market evidence. Most insurers have an internal dispute resolution process that must be followed before escalating externally.
Third, if the internal process does not resolve it satisfactorily, lodge a complaint with the Australian Financial Complaints Authority (AFCA) at afca.org.au. AFCA is free to consumers and can direct insurers to pay a higher amount if the evidence supports it. AFCA has a strong track record of upholding complaints where the consumer can demonstrate the insurer's valuation is below actual market prices.
If your write-off payout is less than the outstanding balance on your car loan, you remain liable for the difference. This is the gap risk. Gap insurance (sometimes called loan protection or equity protection) is a separate product that covers the shortfall between the insurer's market value payout and the outstanding loan balance. It is typically offered by car dealers at the time of purchase or by some insurers as an add-on.
Gap insurance is most relevant on: new cars in the first two years (highest depreciation period), vehicles purchased with a small deposit (loan balance close to full value), and vehicles that depreciate faster than average (some SUV and luxury segments). If you have financed your car and hold a market value policy, it is worth calculating the current gap between your loan balance and your car's likely market value.
When an insurer pays a total loss claim, ownership of the vehicle transfers to the insurer. They typically sell it to a licensed dismantler or wrecker. If you want to retain the written-off vehicle (some owners do, to use for parts or if the damage is cosmetic rather than mechanical), you can usually negotiate to keep it with a corresponding reduction in your payout. The insurer will deduct the salvage value from the claim settlement. Written-off vehicles in Australia are recorded on the Written-Off Vehicle Register (WOVR), which is checked by state road authorities and affects re-registration eligibility.
Some insurers offer "new for old" replacement on vehicles that are written off within the first two or three years of registration (the exact period varies). This means rather than paying market value (which reflects depreciation), they replace the vehicle with a comparable new model. This is a valuable inclusion on new vehicle policies and is worth checking for explicitly — it is not standard across all comprehensive policies. If your vehicle is less than two years old, confirm whether your policy includes new for old replacement before your renewal.
Check whether your car insurance gives you the cover you'd actually need if you had to make a claim.
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