Just Cause for Dismissal: The Near-Impossible Standard Employers Must Meet

What Just Cause Means

Just cause for dismissal is the employer's right to terminate the employment relationship immediately, without notice and without pay in lieu of notice, on the basis that the employee has committed misconduct so serious that the employment relationship cannot continue.

The concept has deep roots in Canadian common law. The Supreme Court of Canada articulated the modern framework in McKinley v. BC Tel, 2001 SCC 38, holding that the question is whether the employee's misconduct gave rise to a breakdown in the employment relationship. The analysis requires the court to consider the nature and seriousness of the dishonesty and whether it warranted the sanction of termination, taking into account the context of the particular employment relationship.

The McKinley framework replaced the earlier "categorical" approach, under which certain types of misconduct (dishonesty, insubordination, theft) were treated as automatically constituting just cause. The contextual approach requires the court to examine not just what the employee did but the circumstances in which they did it, their length of service, their disciplinary record, the employer's own conduct, and any mitigating factors.

The Burden of Proof

The burden of proving just cause rests entirely on the employer. The employee does not need to prove that they were terminated without cause. The employer must prove, on a balance of probabilities, that the employee engaged in the alleged misconduct and that the misconduct was sufficiently serious to justify summary dismissal.

This burden is demanding. The employer must prove both the factual allegations (that the employee did what the employer alleges) and the legal conclusion (that the proven conduct warrants the sanction of termination without notice). Many employers can prove the former but not the latter — the employee may have engaged in misconduct, but the misconduct may not be serious enough to justify the most severe employment sanction.

Categories of Just Cause

While the McKinley contextual approach rejects the categorical approach, courts continue to organize just cause cases by type of misconduct. The most common categories are:

Dishonesty

Dishonesty is the most frequently litigated ground for just cause. The McKinley decision itself involved an employee who was terminated for dishonesty (he had misrepresented his medical condition to his employer). The Court held that not all dishonesty constitutes just cause — the dishonesty must be assessed in context, considering its nature, gravity, and effect on the employment relationship.

Minor, isolated acts of dishonesty — claiming a personal expense on a corporate credit card, overstating a travel expense by a small amount — are unlikely to constitute just cause for a long-service employee with an otherwise clean record. Systematic dishonesty — a pattern of falsifying reports, misrepresenting qualifications, or embezzling funds — is far more likely to meet the standard.

Insubordination

Insubordination is the deliberate and willful refusal to obey a reasonable and lawful direction from the employer. A single act of insubordination may constitute just cause if the direction was clear, the refusal was deliberate, and the consequences of the refusal were serious. More commonly, just cause for insubordination requires a pattern of refusal following progressive discipline.

The direction must be reasonable and lawful. An employee who refuses an unlawful direction — for example, a direction to falsify records, to discriminate against a customer, or to work in unsafe conditions — is not insubordinate.

Incompetence

Incompetence — the persistent inability to perform the job to the required standard — can constitute just cause, but the threshold is high. The employer must demonstrate that the performance standards were communicated to the employee, the employee was given a reasonable opportunity to meet the standards (including training and support), the employee was warned that failure to improve could result in termination, and the employee failed to improve despite the warnings and support.

This progressive discipline framework means that incompetence-based just cause requires a documented history of performance management. An employer that terminates an employee for poor performance without ever having addressed the performance issues — no warnings, no performance improvement plan, no documentation — will almost certainly fail to establish just cause.

Misconduct Outside the Workplace

Misconduct that occurs outside the workplace can constitute just cause if the misconduct is sufficiently connected to the employment relationship. The leading authority is Kelly v. Linamar Corporation, 2005 CanLII 42487 (ON SC), in which the Court considered whether off-duty misconduct (a criminal conviction) constituted just cause.

The connection to employment may exist where the misconduct damages the employer's reputation, the misconduct renders the employee unable to perform their duties (e.g., a criminal conviction that results in incarceration), or the misconduct destroys the trust necessary for the employment relationship (e.g., a financial advisor convicted of fraud).

Social media misconduct — posting discriminatory, threatening, or offensive content on personal social media accounts — has emerged as a significant issue. Courts assess whether the social media conduct is connected to the employment relationship and whether it is sufficiently serious to warrant dismissal.

The Contextual Factors

Under the McKinley framework, the court considers the full context of the employment relationship when assessing whether misconduct constitutes just cause. Relevant contextual factors include:

Length of service. A long-service employee who commits a single act of misconduct is more likely to receive the benefit of the contextual analysis. Twenty years of loyal service is a mitigating factor that weighs against the just cause finding. A short-service employee who commits the same misconduct may receive less latitude.

Disciplinary record. A clean disciplinary record weighs against a finding of just cause. An employee who has never been disciplined, never received a warning, and has consistently received positive performance evaluations is unlikely to be found to have committed conduct so serious that it warrants the most severe sanction — unless the misconduct is itself exceptionally serious.

Progressive discipline. Did the employer follow a progressive discipline approach before resorting to termination? Progressive discipline — verbal warning, written warning, suspension, termination — is not a legal requirement, but the failure to follow it is relevant to the contextual analysis. An employer that proceeds directly to termination without first attempting lesser sanctions suggests that the misconduct was either extremely serious or that the employer was looking for an excuse.

The employer's own conduct. Did the employer condone similar misconduct by other employees? Did the employer itself engage in the conduct it is now treating as grounds for termination? An employer that tolerates expense account irregularities among senior management but terminates a junior employee for the same conduct may find that its selective enforcement undermines the just cause argument.

Mitigating circumstances. Were there mitigating circumstances that explain or contextualize the misconduct? Personal difficulties, mental health challenges, provocation by other employees, or workplace conditions that contributed to the misconduct are all relevant factors.

The Practical Reality

The practical reality is that employers lose just cause cases far more often than they win them. The standard is high, the burden is on the employer, and the contextual analysis provides multiple avenues for the employee to demonstrate that the misconduct does not meet the threshold.

Employment lawyers who represent employers commonly advise that unless the misconduct involves theft, fraud, violence, or sexual harassment of a sufficiently serious nature, the employer should not rely on just cause. The safer and more predictable approach is to terminate without cause and pay the employee's entitlements — statutory and common law.

When employers do assert just cause, they are often doing so for strategic rather than legal reasons. A just cause allegation at the outset of a severance negotiation depresses the employee's expectations. An employee who believes they may have been terminated for cause may accept a severance offer that is substantially below their common law entitlement. The just cause assertion is withdrawn once the settlement is reached.

This strategy works — but only against employees who do not understand the standard. An employee who knows that just cause is near-impossible to prove, who understands the contextual factors, and who has legal advice will not be intimidated by a just cause assertion that lacks substance.

If you have been terminated for alleged just cause, the most important step is to consult an employment lawyer immediately. The vast majority of just cause assertions do not withstand legal scrutiny. Do not accept the employer's characterization. Challenge it.