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Psychiatric Injury Threshold in NSW CTP Claims: What Injured People in Greater Sydney Need to Know

In NSW, a psychiatric injury from a motor accident may qualify for compensation if it meets the threshold for a serious injury, requiring a permanent impairment of at least 10% of the whole person impairment. The assessment is based on clinical evidence and the Motor Accident Guidelines. Practical steps such as obtaining medical evidence and preserving records are essential. 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 3 November 2026

Understanding the Psychiatric Injury Threshold in NSW CTP Claims

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).

In NSW, a psychiatric injury sustained in a motor accident may qualify for compensation under the Compulsory Third Party (CTP) insurance scheme, but only if it meets the legal threshold for a 'serious injury'. This threshold determines whether a claimant can access damages for non-economic loss, such as pain and suffering, or claim weekly income payments and treatment and care benefits. For people in Greater Sydney who have experienced psychological harm following a motor accident, common questions revolve around whether their injury is serious enough to qualify, how the assessment is made, and what practical steps they should take. The Motor Accident Injuries Act 2017 (MAIA) and the Motor Accident Guidelines set out the legal framework that governs these claims.

What Constitutes a Psychiatric Injury Threshold in NSW?

Under the MAIA, a psychiatric injury is considered a 'serious injury' only if it meets the threshold for a 'threshold injury'. This means the injury must be more than minor and must have a significant impact on the person’s life. The law defines a threshold injury as one that results in a permanent impairment of at least 10% of the whole person impairment (WPI), or causes a condition that is not minor and has a lasting effect on daily functioning. For psychiatric injuries, this includes conditions such as post-traumatic stress disorder (PTSD), major depressive disorder, or anxiety disorders that persist beyond 12 months and significantly affect the person’s ability to work, socialise, or perform daily tasks.

The assessment of whether a psychiatric injury meets the threshold is not based on subjective feelings alone. It must be supported by clinical evidence from a qualified medical practitioner, including a psychiatric assessment. The Motor Accident Guidelines state that a diagnosis must be made in accordance with the International Classification of Diseases (ICD-10) or the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), and must demonstrate that the injury is attributable to the motor accident, not to pre-existing conditions or unrelated life events.

How SIRA Assesses Psychiatric Injuries in CTP Claims

The State Insurance Regulatory Authority (SIRA) administers the CTP scheme in NSW and is responsible for assessing claims involving psychiatric injuries. When a claim is made, SIRA reviews the medical evidence to determine whether the injury meets the threshold. This includes reviewing reports from treating medical practitioners, independent medical assessors, and psychological evaluations. The assessment considers the nature and severity of the symptoms, the duration of the condition, and whether the injury has caused a measurable impact on the person’s capacity to work, maintain relationships, or engage in normal activities.

SIRA uses a structured process to assess the whole person impairment (WPI) for psychiatric injuries. The WPI is calculated using a standardised assessment tool that evaluates the extent of functional loss across multiple domains, including emotional regulation, concentration, sleep, and social interaction. A WPI of 10% or more is required to meet the threshold. Importantly, a diagnosis of PTSD or depression alone does not automatically satisfy the threshold. The injury must be shown to have a lasting and substantial effect on the claimant’s life.

Common Questions Injured People in Greater Sydney Ask

People in Greater Sydney who have experienced a motor accident and developed a psychiatric injury often ask similar questions. These include:

  • Can I claim compensation if I was not physically injured but developed anxiety or PTSD?
  • How long must symptoms last before they are considered serious?
  • What if my injury was worsened by a pre-existing mental health condition?
  • Can I claim damages if I was not at fault but the accident caused psychological harm?
  • What happens if my claim is rejected because the injury did not meet the threshold?

The answers to these questions depend on the evidence and the legal criteria. For example, a claimant who develops PTSD after a high-speed collision involving a pedestrian may be eligible for compensation if the condition persists for more than 12 months and causes a WPI of 10% or more. However, if the symptoms resolve within a few months and do not significantly affect daily life, the injury may not meet the threshold.

Practical Steps and Evidence That Matter

To support a claim for a psychiatric injury that meets the threshold, claimants should take the following practical steps:

  • Seek medical attention from a general practitioner or mental health professional as soon as possible after the accident.
  • Maintain a detailed record of symptoms, including when they started, how they have progressed, and how they affect daily life.
  • Obtain a formal psychiatric assessment from a registered medical practitioner, preferably one with experience in motor accident claims.
  • Provide a written statement describing the accident and its psychological impact, including any changes in mood, sleep, or behaviour.
  • Preserve all correspondence with insurers, medical practitioners, and employers.

Photographs of the accident scene, witness statements, and police reports may also be useful, particularly if they help establish the severity of the incident. For claimants in Greater Sydney, access to specialist mental health services through the public system or private providers may be relevant to the treatment and care benefits they can claim.

Time Limits, Disputes and When to Seek Advice

There are time limits for making a claim under the CTP scheme. A claim must generally be made within three years of the accident date. However, if the injury is not immediately apparent, the three-year period starts from when the claimant first knew or ought to have known of the injury. This is particularly relevant for psychiatric injuries, which may not manifest until months after the accident.

If a claim is rejected because the injury did not meet the threshold, the claimant has the right to request a review or apply to the NSW Civil and Administrative Tribunal (NCAT) for a determination. The review process involves submitting additional medical evidence or requesting a second opinion. It is advisable to seek independent legal advice before initiating a dispute, as the process can be complex and the outcome depends on the strength of the evidence.

A hypothetical example: A 34-year-old office worker in Sydney was a passenger in a car that was struck from behind at a traffic light. The impact caused no physical injury, but in the following weeks, the person began experiencing panic attacks, insomnia, and an inability to concentrate. After six months, a psychiatrist diagnosed PTSD and determined a WPI of 12%. With this evidence, the claimant may be able to meet the threshold and claim damages for non-economic loss, as well as weekly payments and treatment benefits.

Next Steps for Claimants

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

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