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PTSD after road trauma: How SIRA assesses claims under NSW CTP laws

This article explains how SIRA assesses PTSD claims under NSW's CTP scheme, including the evidence required, compensation rules, and time limits. It clarifies how SIRA defines PTSD as a threshold injury and outlines practical steps for making a claim. If you're unsure whether your PTSD qualifies for compensation, seek legal advice before the 52-week statutory period expires.

Current as at 19 June 2026

A threshold injury under the Motor Accident Injuries Act 2017 (NSW) includes a soft tissue injury and a psychological or psychiatric injury that is not a recognised psychiatric illness (adjustment disorder and acute stress disorder are the usual examples; s 1.6 and Motor Accident Guidelines Part 5).

If you've developed post-traumatic stress disorder (PTSD) after a road trauma in New South Wales, understanding how SIRA evaluates claims is critical. SIRA (State Insurance Regulatory Authority) administers NSW's Compulsory Third Party (CTP) scheme, which covers psychological injuries like PTSD under specific conditions. This article explains how SIRA interprets PTSD claims, the evidence required, and how compensation is determined under the Motor Accident Injuries Act 2017.

How SIRA defines PTSD claims under NSW CTP laws

SIRA considers PTSD a psychological injury under the CTP scheme, but only if it meets the 'threshold injury' criteria outlined in the Motor Accident Guidelines. Threshold injuries are defined as injuries that result in a person being unable to perform everyday activities, such as work, study, or household tasks. For PTSD to qualify, it must be diagnosed by a medical practitioner and supported by clinical evidence showing a direct link to the road trauma.

SIRA's guidelines emphasize that PTSD claims must demonstrate a 'neurological or psychological injury' caused by the accident. This includes symptoms like flashbacks, anxiety, sleep disturbances, and avoidance behaviors. However, SIRA does not automatically assume all PTSD cases meet the threshold for compensation. The injury must be severe enough to impact daily functioning, as outlined in the Motor Accident Guidelines.

Evidence required for a PTSD claim

To support a PTSD claim under the CTP scheme, you'll need to provide:

  • A medical report from a registered medical practitioner confirming a PTSD diagnosis
  • Evidence linking the PTSD to the road trauma (e.g., accident reports, witness statements)
  • Records of how the injury affects your daily life (e.g., work absence, reduced capacity for routine tasks)
  • Any treatment records, including therapy sessions or medication

SIRA requires these documents to assess whether the injury meets the threshold for compensation. Without sufficient evidence, claims may be denied or limited to statutory benefits.

How SIRA's guidance affects compensation

Under the CTP scheme, compensation for PTSD depends on whether the injury is classified as a 'threshold injury' or a 'whole person impairment' (WPI). Threshold injuries typically result in limited benefits, while WPI claims can lead to higher compensation.

If your PTSD is classified as a threshold injury, you may receive weekly income benefits and treatment and care benefits for up to 52 weeks. After this period, benefits generally stop unless the injury is reclassified as a WPI. SIRA's guidelines state that only injuries resulting from the accident are considered, so pre-existing mental health conditions are excluded.

For WPI claims, compensation is calculated based on the severity of the injury and its impact on your life. SIRA uses a 'whole person impairment' scale to determine the level of impairment, which directly affects the amount of compensation awarded.

Practical steps and time limits

You have 52 weeks from the date of the accident to claim statutory benefits for threshold injuries. If your PTSD is classified as a WPI, you may be eligible for longer-term compensation, but this requires a formal assessment by a medical practitioner.

It's important to notify SIRA of your claim within 52 weeks of the accident. Delays can result in reduced benefits or the loss of certain entitlements. If you're unsure whether your PTSD meets the threshold for compensation, seek legal advice before the 52-week period expires.

When to seek independent advice

SIRA's guidelines can be complex, and interpreting them correctly is essential for a successful claim. If you're unsure whether your PTSD qualifies for compensation, or if you believe your claim has been unfairly denied, consider consulting a legal professional. A solicitor can help you understand your options and ensure you meet all the requirements for a successful CTP claim.

Example: How SIRA assesses a PTSD claim

Consider a scenario where a person is involved in a serious road trauma and develops PTSD. They provide a medical report confirming the diagnosis and evidence linking the injury to the accident. SIRA assesses whether the PTSD meets the threshold injury criteria. If it does, the person may receive weekly benefits for up to 52 weeks. If the injury is reclassified as a WPI, they may be eligible for additional compensation based on the severity of the impairment.

Next steps

Understanding how SIRA evaluates PTSD claims under NSW CTP laws is essential for anyone seeking compensation after a road trauma. If you're unsure whether your claim meets the requirements, or if you need assistance with the claims process, complete the quick, no obligation enquiry form to request contact about your circumstances.

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

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