NEWS

Psychiatric injury in the workplace and negligence

Job related stress is by no means a new phenomenon; however, increasing awareness around mental health means that there is a greater level of responsibility placed on employers to provide a safe workplace.

Employers have a non-delegable duty of care towards their employees,1 which also seemingly includes the duty to provide a workplace where employee stress is adequately managed. Psychiatric injury and negligence however, is a legal grey area in Australia. Although, there is extensive case law and legislation that guides courts in making decisions in relation to the negligence of an employer where physical personal injury is suffered at work, the law surrounding psychiatric injury caused as a result of an employer’s negligence is fraught with difficulty, and an employee faces a high bar in establishing causation. Although ‘stress’ itself is not classified as a psychiatric injury, it is a precursor for such illnesses such as depression, anxiety and post- traumatic stress disorder.

In order for an employee to successfully make a claim for psychiatric injury, the employee is required to establish:

  1. that the employer owed a duty of care;
  2. that the duty of care was breached; and
  3. as a result of the breach, the employee suffered damage.

The High Court of Australia in Koehler v Cerebos 2 formulated a fairly narrow test which appears to place more responsibility on the employee. In this case, the employer was not found negligent, as the Court found that the plaintiff failed to bring to the attention of the employer that she was actually suffering from a mental illness and continued her duties under her employment contract. Although the Plaintiff informed the employer that she was unable to cope with her ever growing workload, she did not warn her employer expressly of her risk of suffering psychiatric illness3 and continued to attend work. Accordingly, the Court found it was not reasonably foreseeable to the employer that the Plaintiff would suffer injury, and as a result, the employer did not act unreasonably nor breach their duty of care.4 Further to the above, the Court emphasised the contractual nature of the employment relationship.5  The Court found that because the employee continued to exercise her duties under the contract, the employee assumed the risk and therefore the employer could not have breached their duty of care, as it was not reasonably foreseeable to the employer that the employee was at risk of harm.

By narrowing the test for psychiatric harm, the High Court has restricted the number of cases which can be brought against employers for psychiatric injury suffered by employees in the workplace. Although an employer still owes an employee a duty of care, which includes the duty to take reasonable steps against the risk of psychiatric injury, it appears that the duty of care cannot be breached unless an employee has brought to the attention of the employer their inability to cope with the workload and associated employment stress, which puts the employer on notice of the risk (reasonable foreseeability) of injury.  Accordingly, the responsibility is on employees to expressly inform employers that they are or may suffer psychiatric injury, rather than the employer drawing conclusions on each employee and make assumptions about their mental health.

The content of this article is intended to provide a general guide to the subject matter. Specific advice should be sought about your specific circumstances.


Koehler v Cerebos (Australia) Ltd [2005] HCA 15.

Peter Handford, “Liability For Work Stress: Koehler Ten Years On” (2015) 39 University of Western Australia Law Review155

4 Koehler v Cerebos (Australia) Ltd [2005] HCA 15.

Gary Chan, “Koehler V Cerebos (Australia Ltd): Work Stress And Negligently Inflicted Psychiatric Illnesses” (2005) 28 UNSW Law Journal, 823

The content of this article is intended to provide a general guide to the subject matter. Specific advice should be sought about your specific circumstances.

Related News

Doyles Guide Leading Class Action Lawyers, Australia 2026

William Roberts are proud to announce that  Bill Petrovski and Ding Pan have been selected as Leading Class Actions Lawyers – Australia, 2026. The 2026

Read More

Lessons from Bremner v French (No 6) [2026] NSWSC 826

Please, Your Honour, May I Have Some More (of my fees)? – Lessons from Bremner v French (No 6) [2026] NSWSC 826 Justice Parker’s decision

Read More

Zamagias v Saltalamacchia [2026] NSWCA 48: A Lesson on the Value of Contemporaneous Evidence

In a decision handed down by the New South Wales Court of Appeal on 2 April 2026, Justice Adamson with President Ward and Justice Free

Read More

Get in touch

Contact our team today

William Roberts Lawyers

Sydney

Level 22
66 Goulburn Street
SYDNEY NSW 2000

PO Box 20424, World Square NSW 2000

Melbourne

Level 7,

171 La Trobe Street
MELBOURNE VIC 3000

 

PO Box 13171, Law Courts VIC 8010

Brisbane

Level 9
193 North Quay
BRISBANE QLD 4000

 

PO Box 12170, George Street QLD 4003

Singapore

Level 19
Singapore Land Tower
50 Raffles Place
SINGAPORE 048623