The crash may take seconds, but being left without your vehicle, paying an excess or facing a disputed repair invoice can drag on for weeks. Knowing how to file a not at fault accident claim puts you in a stronger position to protect your vehicle, your cash flow and your right to recover losses from the party responsible.

If another driver caused the accident, you should not simply accept being out of pocket because their insurer delays, denies liability or challenges the cost of repairs. A well-prepared claim gives the at-fault driver or their insurer the information needed to assess liability and compensate you properly.

Start at the scene: protect the evidence

Your claim begins at the accident scene. Once everyone is safe and urgent medical needs are addressed, collect clear evidence while the details are fresh. Take photos and video of the vehicles, number plates, road layout, damage, debris, traffic signs, lane markings and weather conditions. If relevant, photograph the position of each vehicle before it is moved.

Exchange names, addresses, mobile numbers, licence details and registration details with the other driver. Ask for their insurer if they are willing to provide it, but do not argue about fault at the roadside. Keep the conversation factual and avoid making statements that could be treated as an admission of liability.

Independent witnesses can make a significant difference where the other driver later changes their account. Obtain their names and contact details, and ask whether they are prepared to confirm what they saw. If police attend, record the event number and the officers’ details where available.

You may need to report the incident to police, particularly where there is injury, substantial damage, a driver fails to exchange details or local reporting rules require it. Requirements vary between Australian states and territories, so act promptly if you are unsure.

Get your vehicle assessed and keep every record

Do not rely on a rough verbal estimate of the damage. Arrange a proper repair assessment or quotation from a reputable repairer. For newer, specialist, prestige or commercial vehicles, a detailed assessment is especially important because hidden damage, calibration requirements and manufacturer repair procedures can materially affect the final cost.

Keep copies of the repair quote, assessment fee, towing invoice, storage invoice and any photographs taken by the repairer. If repairs have started, retain invoices, work orders and proof of payment. These documents show both the nature of your loss and whether the amount claimed is reasonable.

Your loss may extend beyond panel repairs. Depending on the circumstances, a not-at-fault claim can seek recovery for reasonable costs such as:

  • vehicle repair costs or the pre-accident value where the vehicle is a total loss;
  • towing, storage, assessment and recovery-related charges;
  • a comparable hire vehicle while your vehicle is unavailable;
  • loss arising from damage to property carried in the vehicle; and
  • other reasonably incurred expenses caused by the accident.

The key word is reasonable. The at-fault insurer may scrutinise a hire car rate, the length of hire, repair methods or labour charges. That does not mean the claim is invalid. It means your evidence needs to explain why the expense was necessary and connected to the accident.

Notify your insurer, then decide the recovery path

If you hold comprehensive insurance, notify your insurer as soon as practicable, even if you intend to pursue the other driver. Your policy may require notification, and your insurer may offer to manage repairs or pursue recovery on your behalf. Ask whether an excess is payable upfront and whether it will be refunded once the at-fault party is identified and liability is accepted.

Using your own insurer can be practical when you need repairs arranged quickly. However, it is not the only option. You may also make a direct claim against the at-fault driver or their insurer. This is often called a third-party recovery claim.

The best pathway depends on the facts. A direct claim may give you more control over the repair process and related losses, particularly where a hire vehicle, commercial downtime or disputed repair costs are involved. On the other hand, your own insurer may provide a faster initial route in some matters. Before authorising significant expenses, understand who will pay, what policy conditions apply and whether there are limits on the recovery being pursued.

How to file a not at fault accident claim with the other insurer

A direct claim should be made in writing and supported by evidence. Identify the at-fault driver, their vehicle registration, the accident date and location, and the basis on which they caused the collision. Set out the losses you are claiming and attach the supporting documents.

Your demand should be clear enough that the insurer can investigate without guessing. Include the crash evidence, witness details, photographs, repair assessment, hire documents and invoices. If the insurer has a claim reference, use it on every communication.

Do not send a vague request such as, “Please pay for my damage.” State the amount sought, explain each component and reserve the right to update the claim if additional losses emerge. For example, repair costs may increase after a vehicle is dismantled and further accident damage is found.

Keep all communications in writing where possible. After a phone call, send a short email confirming what was discussed, including any agreement about liability, repairs, inspections or payment timeframes. A clean paper trail is valuable if the insurer later disputes what was said.

Be careful with hire car costs and repair delays

A like-for-like hire vehicle can be recoverable where it is reasonably required, but it is not an open-ended entitlement. The vehicle should broadly meet your genuine transport needs. A tradesperson who needs to carry tools may reasonably require a ute or van; a family with one suitable vehicle may have a different need from a fleet operator with multiple available cars.

You should also take sensible steps to minimise loss. This is often called the duty to mitigate. It does not require you to accept an unsuitable vehicle or fund repairs yourself when another driver caused the accident. It does mean avoiding unnecessary delay, choosing commercially reasonable options and not retaining a hire vehicle once it is no longer needed.

Repair delays can create their own disputes. Insurers may argue that a lengthy hire period was caused by a repairer, parts supplier or vehicle owner rather than the accident. Maintain records of booking dates, parts delays, insurer inspections and communications. Those records can show where the delay actually occurred.

What to do if liability or costs are disputed

An insurer may deny liability because its insured gives a different version of events. It may accept fault but challenge the repair quote, reduce labour rates, reject a hire charge or offer a settlement that does not cover the real loss. Do not assume the first response is the final word.

Ask for the insurer’s reasons and supporting basis in writing. If the dispute concerns liability, revisit the photographs, witness evidence, dash-cam footage, police information and road rules relevant to the collision. If it concerns quantum, obtain detailed repair evidence, invoices and an explanation from the repairer or hire provider where needed.

For businesses, the financial impact can be broader than a single repair invoice. A vehicle off the road may interrupt jobs, deliveries or fleet operations. These claims need careful assessment because recoverability depends on the facts, the evidence of loss and whether the expense was reasonably incurred. Acting early helps preserve records that may otherwise be lost.

Where negotiations stall, specialist legal assistance can bring structure and pressure to the recovery process. Titan Legal assists not-at-fault vehicle owners, repairers, hire providers and businesses to assess losses, pursue insurers directly and seek a favourable outcome, including through court proceedings where settlement is not appropriate.

Do not wait until the paperwork becomes a problem

There are time limits for bringing legal claims, and evidence becomes harder to obtain as months pass. Witnesses forget, dash-cam footage is overwritten and damaged vehicles are repaired or sold. Lodge the claim promptly, preserve documents and follow up if you do not receive a meaningful response.

Being not at fault is only the starting point. The strength of your recovery depends on proving what happened, showing what you lost and refusing to let an unsupported insurer position leave you carrying someone else’s costs.