If you were hurt in a car crash in or around Castle Hill, fault is the question that shapes the rest of your claim. It rarely stops you claiming at all, but it decides whether a lump sum is possible and how long benefits can run. Our free claim check looks at what happened and what the insurer has said. We'll tell you honestly whether an independent lawyer should look at the fault question, or whether you can manage it yourself.
The Hills · Car accident lawyer help
Partly at fault? Car crash lawyer help for Castle Hill
Most injured people can claim whoever caused the crash. Fault decides what happens after that.
Postcode: 2154

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Local context for a fault question in Castle Hill
Showground Road, Old Northern Road and Pennant Hills Road have busy intersections. When fault is argued after a crash there, the lights, turning arrows and any witness who stopped are the details to note. Public hospitals serving the area include Westmead Hospital. Ambulance and emergency notes usually record how the crash was described on the day, which can matter if the other driver's account changes later. Around Castle Hill Metro station, traffic slows for pick-ups, bus stops and people crossing. A low-speed collision in that setting can still raise real questions about who should have given way, so note what each vehicle was doing.
- Region
- The Hills
- Postcode
- 2154
- Main roads
- Old Northern Road · Showground Road
- Nearest public hospital
- Westmead Hospital
- Getting around
- Castle Hill Metro station · bus stops on Old Northern Road
What to note near Castle Hill that bears on fault
Once everyone is safe and anyone hurt has help, your memory of the crash is at its sharpest. Note which lane each car was in, what the lights or signs showed, roughly how fast you were going and where the vehicles came to rest. Write down anything the other driver said about how it happened. These details can decide fault later, and they fade within days.
- Where each car came to rest, photographed before moving if safe
- Names and phone numbers of anyone who saw it
- Exactly what the other driver said, written down that day
- Weather, light and the road surface at the time
Read next:What to do after a car accident in NSW
Contributory negligence: when you share the blame
Insurers look at more than who hit whom. They may ask whether you wore a seatbelt, how fast you were going and whether you were distracted. The finding is usually a percentage. A small one trims damages and later weekly payments. One greater than 61% has a much bigger effect, because it rules out damages altogether.
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?
Where fault leaves your claim: four common positions
People often assume that being at fault means getting nothing. That isn't how the NSW scheme generally works. The four situations below show what usually changes as your share of the blame goes up.
Situation 1
You were not at fault
If another driver caused the crash, their vehicle's CTP insurer deals with your claim. Having no share of the blame keeps the most options open, including a later damages claim where the injury goes beyond the threshold.
Situation 2
You were partly at fault
If you contributed to the crash or your injuries, for example by not wearing a seatbelt, the insurer may argue contributory negligence. Weekly payments after 52 weeks may be reduced, and any damages can be reduced by your share.
Situation 3
You were wholly or mostly at fault
Being at fault doesn't leave you with nothing. Statutory benefits generally continue for the first 52 weeks, but a damages claim is off the table. The same applies once contributory negligence is found to be greater than 61%.
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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Fault, statutory benefits and damages
Think of the claim in two parts. Statutory benefits come first and, for most people, don't depend on who caused the crash. Common law damages come later and depend heavily on it: another driver must have been at fault, you must not have been mostly at fault, and the injury must be more than a threshold injury. That is why fault is worth attention early.
Rules change
The fault rules and benefit limits described here apply to accidents from 1 April 2023. Earlier accidents can have different limits, so check the rules for your accident date.
Read next:At fault vs not at fault
Dashcam, witnesses and the police record
An independent witness, someone with no link to either driver, can carry real weight. Get their name and phone number at the scene if you can. If you can't, the police record may have their details. Photos of the final positions of the vehicles also matter, since damage patterns often show the angle and order of impact.
The police event number links your claim to the official record of the crash. The insurer can use it to check who was involved and what was reported. It's worth getting even if the crash seemed minor and police didn't attend, because a record made close to the time is harder to dispute than one pieced together later.
- Photos of both vehicles' damage and final positions
- Independent witnesses' names and numbers
- Your own written account from the first days
- Photos of signals, signs and lane markings
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.
Whose insurer, when fault is shared or unclear
Chain collisions are where fault gets complicated. The driver who started it may carry most of the blame, but a driver behind who was following too closely can share it. Each vehicle has its own Green Slip insurer. Your task is to record every vehicle involved and the order of the impacts; the insurers' task is to sort out which of them responds.
Passengers and drivers caught in the middle of a chain crash often feel stuck between insurers. Your claim generally shouldn't stall while the insurers sort out their shares. Keep a note of every call, who you spoke to and what they said. If no insurer will take responsibility, that is a good moment to ask for advice.
Read next:Multi-vehicle accidents
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
When fault is disputed
If the other driver says you caused the crash, or the insurer won't accept that the other driver did, the evidence decides it. This is the point where an independent lawyer is often worth talking to. They can test the insurer's reasons, gather what's missing and advise whether to ask for a review. Insurers make decisions under the scheme rules, and those decisions can be challenged.
Read next:At-fault self-check
Fault after a crash: when to call a lawyer, and when you may not need one
A lawyer isn't a box to tick after every crash. When fault is clear and accepted, many people run their own claim. When it's argued, split or pinned on you, advice is often worth having.
Often worth talking to a lawyer
- The insurer puts your share of fault above 61%
- A seatbelt or speed argument is being used to cut your claim
- Your injury may be more than a threshold injury and fault will decide damages
- The other driver changed their story after the crash
You may not need one
- You mainly need a doctor to record your injuries
- It was a clear rear-end collision and liability is accepted
- You only need help identifying the at-fault vehicle's insurer
Before any fault argument, get the right care. We can connect you with doctors and allied health experienced with CTP claims, who can treat you and complete a clear Certificate of Fitness whatever happens with fault.
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 Castle Hill
- If you've already decided to engage a solicitor and want to know how the file runs stage by stage, see the car accident solicitor page. Car accident solicitor in Castle Hill
- 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 Castle Hill
Frequently asked questions
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.
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.
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.
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 medical opinion on whether a seatbelt would have changed your injuries. Get advice before you accept the percentage the insurer puts forward.
'Mostly at fault' means your contributory negligence is found to be greater than 61%. If you were wholly or mostly at fault, weekly payments and treatment and care are generally limited to the first 52 weeks, and you can't claim common law damages. For accidents from 1 April 2023, most people in that position still receive those first 52 weeks of statutory benefits. Because so much turns on the line, a finding close to it is worth having reviewed.
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.
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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.