A car accident can leave you feeling overwhelmed, confused, and in pain. Whether it happened on a Sydney motorway, a quiet suburban street, or a rural road, knowing the right steps to take immediately after a motor vehicle accident in NSW can make the difference between a successful compensation claim and a missed opportunity. This guide walks you through everything — from the scene of the accident to lodging your claim — so you know exactly what to do and, just as importantly, what to avoid.
Your health and safety are the immediate priority. If you or anyone else is injured, call 000 without delay. Even if you feel relatively fine at the scene, seek medical attention as soon as possible. Many serious injuries — including whiplash, spinal damage, soft tissue tears, and traumatic brain injuries — do not present obvious symptoms in the hours immediately following an accident. Adrenaline masks pain, and conditions that feel minor can become chronic.
The CTP insurer will rely heavily on medical evidence when assessing your claim. Seeing a doctor on the day of the accident, or as soon as possible thereafter, creates an official, time-stamped record linking your injuries directly to the accident. Delays in seeking treatment give insurers grounds to dispute the nature or extent of your injuries — or to argue that they were caused by something else entirely.
Keep every medical record, test result, referral letter, and prescription from day one. These documents form the backbone of your claim.
In NSW, you are legally required to report a motor vehicle accident to police if anyone is injured. If police did not attend the scene, you must report the accident at a police station or online within 24 hours. You also have up to 28 days to formally report the accident to police if injuries were not immediately apparent.
A police event number provides an independent, official account of the accident and is a key document for your CTP claim. In disputed liability cases — where the other driver denies fault or gives a different account — a police report can be decisive evidence.
If your injuries allow, gather as much evidence as possible while you are still at the accident scene. Evidence deteriorates quickly — road conditions change, tyre marks fade, and witnesses move on. The following should be collected:
If the at-fault driver refuses to share their details or flees the scene (a hit-and-run), note the vehicle’s registration number and report it to police immediately. NSW operates the Nominal Defendant scheme through the State Insurance Regulatory Authority (SIRA), which allows you to make a compensation claim even when the at-fault vehicle is unregistered, uninsured, or cannot be identified. You do not lose your right to compensation because the other driver behaved unlawfully.
In NSW, every registered vehicle must carry Compulsory Third Party (CTP) insurance — commonly known as a Green Slip. The CTP scheme is administered by SIRA and covers personal injury compensation for anyone injured in a motor vehicle accident in NSW. Whether you were the driver, a passenger, a cyclist, a pedestrian, or a motorcyclist, the CTP scheme covers you.
Your claim is made against the CTP insurer of the at-fault vehicle — not the driver personally, and not your own insurer. There are six licensed CTP insurers in NSW: NRMA Insurance, GIO, AAMI, QBE, Allianz, and Youi.
Time limits for CTP claims in NSW are strict, and missing them can affect your entitlements significantly. There are two key deadlines you must know:
If you lodge your Application for Personal Injury Benefits within 28 days of the accident, your income support payments will be back-paid to the date of the accident. If you lodge after 28 days, income support will only begin from the date of lodgement — potentially costing you weeks of payments.
You must lodge your claim within three months of the accident date to make a valid CTP claim. While late claims may be accepted in exceptional circumstances, lodging promptly protects all your entitlements.
To start your claim, complete an Application for Personal Injury Benefits form and submit it to the CTP insurer of the at-fault vehicle. This can be done:
Once lodged, the insurer must acknowledge your claim within three business days and issue a liability decision within four weeks — accepting or denying the claim and specifying what benefits you are entitled to.
Once your claim is accepted, attend all medical appointments and follow your treating doctors’ advice. Insurers monitor treatment compliance — missing appointments or failing to follow a recommended treatment plan can be used to argue that your injuries are less serious than claimed, or that you have not taken reasonable steps to recover.
Keep records of every expense related to the accident: medical bills, pharmacy receipts, transport costs to and from appointments, and any costs for assistance at home. All reasonable and necessary expenses are claimable under the CTP scheme.

Even if you believe you may have contributed to the accident, do not admit fault, apologise, or make any statement about responsibility at the scene. Fault under the NSW CTP scheme is a legal determination based on evidence — not an on-the-spot concession. Admissions made at the scene can be recorded by the other driver or witnesses and used against you later.
The longer you wait to seek medical attention, the harder it becomes to link your injuries to the accident. Insurers routinely argue that delayed treatment suggests injuries are not accident-related or are less severe than claimed. See a doctor the same day, or the morning after at the latest.
CTP insurers may contact you early in the process with a settlement offer. These offers are often well below the true value of your claim — particularly before your injuries have stabilised and before the full extent of your losses is known. Once you sign a settlement agreement, you generally cannot go back for more. Always seek independent legal advice before accepting any offer.
The NSW CTP system is complex, with strict rules around eligibility, time limits, injury classification, and the pathway to common law damages. Insurers have experienced legal teams working to minimise payouts. Having your own specialist legal representation levels the playing field significantly.