You don't have to prove fault on the day of the crash, but what you notice then can matter later. Lanes, signals, where the cars stopped and what was said all feed into the insurer's view. For people in Norwest, we explain how fault is weighed in a NSW claim and help you decide whether the question needs a lawyer. Often it doesn't. When it does, we'll connect you with one.
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Norwest car accident lawyer: when fault is argued
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Norwest: local roads, car parks and evidence of fault
The M2, the M7, Windsor Road and Old Windsor Road carry much of the Hills traffic. Motorway merges and lane changes at speed can leave two drivers with very different accounts of the same crash. Streets near Norwest Metro station carry buses, taxis and drop-offs that stop and start without much warning. In a crash with a vehicle pulling out from the kerb, fault often depends on who had to give way. If the crash happened near Norwest Business Park, note the exact spot, the signs and road markings, and any shops or buildings with cameras facing the road. Those details can decide a fault argument months later, when memories have faded.
- Region
- The Hills
- Postcode
- 2153
- Main roads
- Norwest Boulevard · Old Windsor Road
- Getting around
- Norwest Metro station · bus stops on Old Windsor Road
- Local landmarks
- Norwest Business Park · Norwest Marketown
At the scene: what to notice for fault
You don't need to decide who caused the crash at the scene, and it's wiser not to argue about it there. Swap details, stay calm and avoid guessing about speeds or blame. What helps most later is a clear record: photos of the vehicles' positions, the road layout and any witness who saw it happen, with their name and number.
- The lane each vehicle was in, and any lane change
- Where each car came to rest, photographed before moving if safe
- Skid marks, debris and the damage to each vehicle
- Exactly what the other driver said, written down that day
Read next:What to do after a car accident in NSW
Passengers: why the fault question is usually about the drivers
Being a passenger doesn't make fault irrelevant. It shifts the question to the drivers. If the driver of your car and another driver both contributed, your claim may involve both vehicles' insurers. Your own conduct can still come up in limited ways, such as not wearing a seatbelt or travelling with a driver you knew was affected by alcohol.
Passengers in a crash between two cars sometimes find that each driver blames the other and neither insurer will accept the claim at first. You don't have to take sides. Give an honest account of what you saw, lodge on time, and let the fault question be worked out between the insurers. If it stalls, that's when advice helps most.
Read next:Passenger injury claims
Fault and your claim: four situations
Fault rarely decides whether you can claim at all. Most injured people get statutory benefits whoever caused the crash. What fault changes is how long those benefits can run and whether a lump sum is possible. These four positions cover most car accidents.
Situation 1
You were not at fault
No share of the fault is the strongest position. Benefits come from the at-fault vehicle's insurer, and a lump sum damages claim may follow if your injury isn't a threshold injury. The insurer still needs evidence before it accepts fault.
Situation 2
You were partly at fault
Sharing some of the blame generally doesn't stop a claim. It can reduce weekly payments after the first 52 weeks and cut down any damages in proportion. How much is often argued, which is where advice helps.
Situation 3
You were wholly or mostly at fault
'Mostly at fault' means contributory negligence greater than 61%. Weekly payments and treatment and care are then generally limited to the first 52 weeks, with no common law damages. Children 16 and under keep treatment and care for as long as they need it.
Situation 4
No one was clearly at fault
Some crashes happen without any driver being at fault, for example after a sudden medical episode or an unforeseeable mechanical failure. NSW has 'blameless accident' rules that may let an injured person claim in some of these cases. They are technical, so get advice.
General information, not legal advice. Fault and contributory negligence are decided on the evidence. Time limits apply.

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Several vehicles, several insurers: working out fault
When three or more vehicles are involved, fault can be divided between several drivers. That affects which insurer deals with you and may affect how any damages are shared between insurers later. It generally doesn't stop you receiving statutory benefits while that is argued. If the insurers are still disputing it weeks after you lodge, advice is worth getting.
If you were hit from behind and pushed into the car in front, you may have been blameless in both impacts. Make that clear in your account: which impact came first, and whether you had stopped before being hit. Insurers sometimes treat a chain crash as one event, and the sequence is what shows your own share was nil.
Read next:Multi-vehicle accidents
Dashcam, witnesses and the police record
Dashcam footage is often the clearest evidence of fault, but many cameras record over themselves within hours or days. Save the original file as soon as you can, and don't trim or edit it. If another driver or a nearby business may have footage, ask early and in writing, because it may not be kept for long.
Some evidence only exists for a short time: skid marks, debris, temporary signs and camera footage. Other evidence can be gathered later, such as the police record and witness statements. If fault is disputed, a lawyer can ask for footage and records to be kept and, where the claim justifies it, obtain an expert opinion on how the crash happened.
- Dashcam footage, saved as the original file
- Independent witnesses' names and numbers
- Your own written account from the first days
- Any messages the other driver sent after the crash
Save footage early
Shops, buses and homes with cameras often keep footage only briefly. Ask in writing as soon as you can, giving the date, time and exact spot.
If the insurer says you contributed
Contributory negligence means you are found to have contributed to the crash or to your own injuries. Common examples are not wearing a seatbelt, speeding, or travelling with a driver you knew had been drinking. It doesn't usually stop a claim. It can reduce weekly payments after 52 weeks and reduce damages, and above 61% you are treated as mostly at fault.
Check the percentage
If the insurer puts your share of fault above 61%, damages are off the table and benefits are generally limited to 52 weeks. Most insurer decisions can be internally reviewed, generally within 28 days of receiving the decision.
Read next:Can I claim if I was partly at fault?
Why fault matters more for a lump sum than for benefits
Fault works more like a dial than a switch. A small share reduces some later entitlements. A share above 61% limits benefits to the first 52 weeks and rules out damages. No share at all keeps every option open. Knowing where the evidence puts you on that dial helps you decide whether a lawyer's view is worth having before the insurer settles its position.
Rules change
Your accident date decides which rules apply. Accidents before 1 December 2017 fall under the older 1999 Act, and some limits changed again on 1 April 2023.
Read next:At fault vs not at fault
When fault is disputed
A fault finding isn't final just because the insurer has made it. Most insurer decisions can go to internal review, generally within 28 days of receiving the decision, and then to the Personal Injury Commission. Before you accept a finding that you were mostly at fault, have someone look at whether the evidence supports it, because so much turns on that line.
Read next:At-fault self-check
Fault after a crash: when to call a lawyer, and when you may not need one
Plenty of car accident claims never involve a fault argument. The ones that do often benefit from advice, because fault controls the lump sum. These lists show when a lawyer is commonly worth a call on fault, and when you may manage alone.
Often worth talking to a lawyer
- You've been asked for a detailed statement about how the crash happened
- The other driver changed their story after the crash
- A fault decision has been made and the review deadline is running
- Fault is split between several drivers and no insurer will take the claim
You may not need one
- You only need help identifying the at-fault vehicle's insurer
- Your question is about payments, not about who caused the crash
- You were a passenger and nobody disputes which driver caused it
Whatever happens with fault, lodge your claim on time. Statutory benefits don't wait for a fault argument to be settled, and the 28-day mark for back-paid weekly payments still applies. How to make a CTP claim
Not quite your situation?
- If you're still working out what kind of claim you have, such as car damage or a driver who drove off, start with the car accident claim page. Car accident claim in Norwest
- If you're engaging a solicitor and want to know what happens between now and settlement, the car accident solicitor page walks through it. Car accident solicitor in Norwest
- If you were riding, walking or cycling, or travelling by truck, bus or rideshare when you were hurt, the motor vehicle accident page fits better. Motor vehicle accident lawyer in Norwest
Frequently asked questions
Possibly. NSW has 'blameless accident' rules for crashes where no driver was at fault, for example because of a sudden medical episode or an unforeseeable mechanical failure. In some of these cases, an injured person may be able to claim as if someone were at fault. The rules are technical and depend on the facts, so get advice before assuming there's no claim. Statutory benefits may be available in the meantime.
Less than it does for adults. A child who was 16 or under at the time of the accident can receive treatment and care for as long as they need it, regardless of fault. Fault can still matter for other entitlements, such as any damages claim. A parent or guardian usually handles the claim. Keep the police record with the other claim papers, and note which driver the police report points to.
Not by itself. An apology can be mentioned, but insurers decide fault on the evidence as a whole: police records, damage patterns, photos, footage and witnesses. People apologise for many reasons, and drivers sometimes change their account later. Write down exactly what was said and when, then collect the harder evidence. If fault is disputed, those records will count for more than the apology.
By looking at the order of events and what each driver did. In a chain crash, the driver who started it often carries most of the blame, but others can share it, for example by following too closely. Each vehicle has its own CTP insurer, and the insurers may split responsibility between them. Your part is to record every registration, the order of impacts and the police event number, and to lodge on time.
Generally, yes. You claim against the CTP insurer of the vehicle at fault, which here is the Green Slip insurer of your friend's car. The claim is against the insurer, not against your friend personally. Passengers are rarely found at fault, though contributory negligence can still be raised in limited cases, for example if you knew the driver had been drinking. Your friend may be asked for their account, which is normal.
It can reduce your claim, but it usually doesn't end it. Not wearing a seatbelt is a classic example of contributory negligence. Weekly payments after 52 weeks may be reduced for it, and any damages can be reduced too. How much depends on the evidence, including expert opinion on whether a seatbelt would have changed your injuries. Get advice before you accept the percentage the insurer puts forward.
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CTP Lawyer is not a law firm. This page is general information, not legal advice; the independent lawyer you speak with can advise on your own situation.