Can I Sue My Employer for Stress and Anxiety in Ontario?

Workplace stress and anxiety are serious, but not every stressful job creates a lawsuit. In Ontario, the legal question is usually what caused the harm, what the employer knew, and how the employer responded.

This article is general information for Ontario employees. It is not legal advice about your specific situation.

Key Takeaways

• Stress alone is not always enough for a legal claim.
• Harassment, discrimination, reprisal, and unsafe work can matter.
• Medical documentation and timelines are important.
• Major job changes may also raise constructive dismissal issues.

When workplace stress may raise legal issues

Legal concerns may arise where stress is connected to harassment, discrimination, failure to accommodate, reprisal, or a major change to employment terms.

What evidence matters

The strongest starting point is a clear timeline. Write down what happened, who was involved, what you reported, and how the employer responded.

• Medical notes or accommodation requests.
• Emails, messages, and HR complaints.
• Changes to duties, pay, schedule, or reporting lines.
• Witnesses or prior incidents.

Constructive dismissal and stress

If the employer substantially changes your job or creates conditions that make continued employment unreasonable, constructive dismissal may be an issue.

Read more about constructive dismissal in Ontario.

Next step

If workplace stress is connected to a legal issue, get advice before resigning, signing a release, or sending a final HR message.