common law severance ontario

What is Common Law Severance in Ontario?

Common law severance in Ontario is a legal principle that determines the compensation an employee may be entitled to when their employment is terminated without cause. Unlike the minimum standards under the Employment Standards Act, 2000 (ESA), common law severance often provides significantly more generous notice or pay in lieu, reflecting the employee’s length of service, position, and circumstances of termination.

Understanding Ontario common law severance is essential for employers to manage risks, avoid costly litigation, and ensure compliance with both statutory and common law obligations.

What Is a Common Law Severance?

At its core, common law severance is a court-recognized entitlement to reasonable notice, or pay in lieu of notice, beyond ESA minimums.

While the ESA provides a baseline, common law severance considers factors including:

  • Employee’s age
  • Length of service
  • Position and level of responsibility
  • Availability of similar employment in the job market
  • The circumstances surrounding the dismissal

This ensures employees are fairly compensated if terminated without cause, even if they do not meet ESA severance eligibility.

Christopher Achkar - Employment Lawyer

As Christopher Achkar, employment lawyer and founder of Achkar Law, explains:

“Understanding the difference between statutory and common law severance is critical for both employees and employers. Whether you’re reviewing a termination package or planning one, getting legal advice first can help protect your rights, reduce risks, and avoid costly mistakes.”  

Feature ESA Severance Pay Common Law Severance
Minimum entitlement Set formula under the ESA Determined by courts; often longer than ESA minimums
Eligibility Employees with ≥5 years of service, employer with payroll ≥$2.5M All employees may be entitled, regardless of employer size or payroll
Calculation Based on weekly wages Factors include age, position, length of service, and market conditions
Statutory backing Employment Standards Act, 2000, ss. 64–67 Developed through case law; influenced by HRC, LRA, and other employment laws

💡Quick Tip:

Even if an employee does not meet ESA eligibility, they may still have a claim under Ontario common law severance.

Key Cases on Common Law Severance in Ontario

Several landmark cases shape common law severance pay:

Calculating Common Law Severance Pay in Ontario

Courts use the Bardal factors to determine reasonable notice or pay in lieu:

  • Age, Older employees may need longer notice to secure comparable work.
  • Length of service, Longer service usually means longer notice.
  • Position and responsibilities, Senior or specialized roles typically receive more generous notice.

Availability of similar employment: The ease of finding a comparable job affects the notice period.

  • Example: A 50-year-old senior manager with 15 years of service may be entitled to 12–18 months’ pay in lieu of notice under common law, even if ESA minimums are much lower.

Employer Obligations for Ontario Common Law Severance

Understanding Your Exposure

Employers may face common law severance claims if they:

Courts often award notice periods ranging from several months to several years for long-serving, high-level employees.

Drafting Employment Agreements

  • Include clear termination clauses specifying notice or severance entitlements
  • Ensure compliance with ESA minimums
  • Be aware that common law entitlements may exceed contractual terms if they are deemed unfair

Unionized Employees

For employees covered by a collective agreement, common law severance may be affected by the Labour Relations Act (LRA). Employers should carefully review agreements to determine obligations and potential overlaps.

Human Rights Considerations

Terminations must comply with the Human Rights Code (HRC) to avoid discrimination claims, which may increase severance obligations if dismissal is related to protected grounds.

🔎 Top 3 Risks of Ignoring Common Law Severance:
  1. Underestimating notice can lead to costly litigation.
  2. Constructive dismissal claims if roles are changed or demotions occur.
  3. ESA minimums do not protect against common law claims.

Practical Checklist: How to Mitigate Common Law Severance Risk

  • Audit employment contracts for proper severance clauses
  • Document performance issues and termination rationale
  • Tailor severance packages to position, tenure, and market conditions
  • Seek legal review before termination, especially for senior staff
  • Consider unionized or protected employees under LRA/HRC obligations

When to Speak With an Employment Lawyer

Consult a lawyer if you:

  • Plan to terminate an employee without cause
  • Consider a severance package differing from ESA minimums
  • Face potential constructive dismissal claims
  • Are you drafting or updating employment agreements
  • Deal with unionized employees or protected grounds under the HRC

Legal guidance helps manage risk, ensure compliance, and reduce exposure to costly claims.

Need Help With Common Law Severance in Ontario?

At Achkar Law, we assist employers across Ontario to:

  • Draft enforceable employment contracts with clear severance clauses
  • Evaluate common law severance obligations before termination
  • Negotiate severance packages to reduce legal exposure
  • Provide strategic advice for unionized and high-level employees

If you want to manage severance obligations effectively while staying compliant with Ontario employment law, contact us to discuss your situation.

The article in this client update provides general information and should not be relied on as legal advice or opinion. Achkar Law Professional Corporation copyrights this publication and may not be photocopied or reproduced in any form, in whole or in part, without the express permission of Achkar Law Professional Corporation. ©