Legal Advice

How Contributory Negligence Affects Treatment Cost Funding in NSW Motor Accident Claims

Contributory negligence in a NSW motor accident does not prevent funding for treatment costs, which remain available under the CTP scheme. The insurer must still cover reasonable and necessary medical treatment, regardless of the claimant’s level of fault. However, if a damages claim is made, the court may reduce the award proportionally. Time limits apply, and disputes may be resolved through review or NCAT. Every claim depends on its own facts. To request contact about your circumstances, complete the quick, no obligation enquiry form.

Current as at 19 June 2026

Understanding Contributory Negligence in NSW Motor Accident Claims

Contributory negligence in a motor accident in New South Wales does not prevent funding for treatment costs, but it may affect the amount of compensation payable. Under the Motor Accident Injuries Act 2017, a person who contributed to their own injury through their own negligence may still be entitled to treatment and care benefits, weekly income payments, and, in some cases, damages. However, the extent of compensation may be reduced in proportion to the claimant’s level of fault. This applies regardless of location, including Greater Sydney, where the legal framework is consistent across the state.

Funding Treatment Costs Under the CTP Scheme

Treatment and care benefits are funded under the Compulsory Third Party (CTP) insurance scheme, which is administered by the State Insurance Regulatory Authority (SIRA). These benefits cover reasonable and necessary medical, rehabilitation, and allied health treatments arising from a motor accident. The CTP insurer is required to fund treatment costs even if the claimant is found to have contributed to the accident. The insurer must pay for treatment that is clinically appropriate and directly related to injuries sustained in the accident.

Legal Boundaries of Contributory Negligence

Contributory negligence does not disqualify a claimant from receiving treatment funding. The Motor Accident Injuries Act 2017 provides that a person’s entitlement to treatment and care benefits is not barred by their own fault. However, if a claim proceeds to a damages claim, the court may reduce the damages awarded in proportion to the claimant’s degree of fault. This reduction is known as a ‘reduction for contributory negligence’ and is determined by the court based on the evidence.

The law does not allow an insurer to refuse treatment funding solely because the claimant was partly at fault. The insurer must still assess and approve treatment that is medically necessary and appropriate. If an insurer refuses to fund treatment, the claimant may request a review or apply to the Civil and Administrative Tribunal (NCAT) for a determination.

Practical Steps and Evidence That Matter

To ensure treatment costs are funded, claimants should:

  • Seek medical attention immediately after the accident and keep all medical records, including treatment plans, prescriptions, and progress notes.
  • Notify the CTP insurer of the injury within a reasonable time, ideally within 28 days, to avoid delays in processing claims.
  • Provide a written account of the accident, including details of how the injury occurred, and retain any witness contact information.
  • Submit all invoices and receipts for treatment, including allied health services such as physiotherapy, psychology, and occupational therapy.
  • Keep copies of all correspondence with the insurer, including rejections or approvals of treatment claims.

In Greater Sydney, as elsewhere in NSW, the availability of treatment providers and the timeliness of referrals can impact recovery and claim outcomes. Early engagement with a medical practitioner and a qualified claims assessor can help ensure treatment is approved and funded promptly.

Time Limits and Dispute Options

There are time limits that may affect the ability to claim. A claim for treatment and care benefits must generally be made within two years of the accident. For damages claims, the time limit is also two years, but it may be extended in limited circumstances, such as if the injury was not immediately apparent.

If an insurer refuses to fund treatment, the claimant may request a review under the insurer’s internal dispute resolution process. If unresolved, the claimant may apply to NCAT for a determination. NCAT has jurisdiction to order the insurer to fund treatment and to award costs if the insurer acted unreasonably.

Hypothetical Example: A Claim in Greater Sydney

A cyclist in Sydney’s inner west was struck by a car turning left at a traffic light. The cyclist was not wearing a helmet and was riding against traffic, which contributed to the collision. The cyclist sustained a whiplash injury and required physiotherapy and psychological support. The CTP insurer accepted liability but argued the cyclist was 30% at fault. The insurer approved treatment funding but proposed a reduction in damages if a claim proceeded. The cyclist received full treatment funding and later received a damages award reduced by 30% due to contributory negligence.

When to Seek Independent Advice

While treatment costs are generally funded regardless of fault, the impact of contributory negligence on damages and the overall claim value can be complex. A claimant should consider seeking independent legal advice if:

  • The insurer disputes liability or the extent of injury.
  • The claimant is asked to accept a settlement that includes a reduction for contributory negligence.
  • The claimant has a pre-existing condition that may be relevant to the injury.
  • The claimant is uncertain about the value of the claim or the effect of their own actions on the outcome.

Every claim depends on its own facts. To request contact about your circumstances, complete the quick, no obligation enquiry form.

Prepared using automated research and drafting tools and checked through LegalAdvice editorial and source-validation controls. This page is general information, not personalised legal advice.

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