Wrongful dismissal is a civil claim you can make when your employer ends your job without giving you what the law or your contract requires. It’s not about whether they were allowed to let you go (employers can terminate without cause in Ontario). It’s about how they did it—specifically, whether they gave you enough notice (or pay in lieu) and included the right parts of your compensation.
The two pillars: ESA vs. common law
ESA minimums (statutory): Ontario’s Employment Standards Act, 2000 (ESA) sets minimum termination and severance entitlements. These include termination pay/working notice, possible severance pay for larger employers/long service, and continuation of certain benefits for the ESA notice period.
Common-law reasonable notice: If your contract’s termination clause is invalid or doesn’t apply, courts award a longer, case-by-case notice period based on factors like age, length of service, role, and job market. This is often much more than ESA minimums.
A termination is wrongful if your employer fails to meet the applicable standard—ESA minimums and (where the contract is unenforceable) common-law notice.
What typically makes a dismissal “wrongful”
Too little notice/pay in lieu. The package doesn’t match either (a) a valid contract or (b) your reasonable notice at common law.
Invalid termination clause. If any part of a termination provision breaches the ESA (for example, cuts off ESA minimums for reasons that don’t meet the ESA’s narrow “wilful misconduct” standard), courts can strike the entire termination scheme, pushing you into common-law notice.
Ignoring key pay elements. Packages must account for base pay, benefits, vacation pay, non-discretionary bonuses/commissions, car allowance, and sometimes equity or long-term incentives (plan wording matters).
Alleging “cause” without meeting the legal bar. Common-law “just cause” is hard to prove; ESA minimums are only forfeited for wilful misconduct (an even higher threshold). Many “cause” firings don’t meet these bars.
Constructive dismissal. A major unilateral change—pay cut, demotion, relocation, unsafe/toxic conditions, or suspension without good reason—can amount to a termination in disguise.
Fixed-term contracts ended early. If the agreement has no enforceable early-termination clause, damages can be up to the balance of the term (often with limited or no mitigation, depending on wording).
What you can recover
Pay in lieu of notice for the proper period (ESA and/or common law).
Benefits continuation value for the notice period (health/dental, RRSP match, etc.).
Bonus/commission that’s earned or would have been earned during the notice period (plan must clearly and lawfully exclude it to defeat this).
Vacation pay and any outstanding wages.
ESA severance pay (if you and your employer meet the thresholds).
Moral (aggravated) damages for bad-faith manner of dismissal (e.g., untruthful, misleading, unduly insensitive treatment causing mental distress).
Punitive damages in rare cases to punish malicious, oppressive, high-handed conduct.
Interest and costs in court actions.
Tax note: Most pay in lieu is taxed like employment income; some non-wage damages may be treated differently. Get tailored advice.
Your duty to mitigate
If you’re pursuing common-law damages, you must take reasonable steps to find comparable work. Money you actually earn in the notice period usually reduces common-law damages. ESA termination/severance pay is not reduced by mitigation.
Employer playbook: they may argue you didn’t try hard enough. Your best defense is a paper trail - jobs applied for, interviews, recruiter outreach, and networking.
Five signs your package may be low
A short lump-sum that looks like only ESA despite long service/senior role.
A termination clause that sounds sweeping (“for any reason, without notice”) or uses broad ‘cause’ language.
No mention of bonus/commission/benefits during the notice period.
Demands to sign a wide release, NDA, or non-disparagement before paying amounts already owed by contract or statute.
A quick deadline with pressure tactics: “Sign by 5 p.m. or the offer’s gone.”
What to do if you’re let go
Don’t sign on the spot. Ask for the package and your contract in writing.
Gather documents: offer/contract, any amendments, bonus/commission or equity plans, handbooks/policies, performance reviews.
Write your timeline: hire date, promotions, duties, compensation makeup, and job-search prospects.
Start mitigation: update your resume/LinkedIn, contact recruiters, apply to roles—track everything.
Get legal advice quickly. The limitation period in Ontario is generally two years, but negotiations move best early.
FAQs
Is it “illegal” to fire without cause?
No. What’s wrongful is firing without enough notice/pay (and without including the right compensation pieces).
What if I’m on probation?
Probation must be in your contract. After 3 months, ESA notice/pay is usually owed unless wilful misconduct applies.
Do I get EI if I sue?
Usually yes after a without-cause termination; some settlement amounts may trigger EI repayment rules later. Ask about structure.
Can the company cut off benefits immediately?
During the ESA notice period, certain benefits must continue (or be cashed out). For common-law notice, courts commonly include the value of lost benefits.
Bottom line
“Wrongful dismissal” isn’t about whether your employer could end the job. It’s about whether they paid and treated you properly under the ESA and—if the contract doesn’t hold up—the common law. If your package looks light, or “cause” seems shaky, you likely have room to negotiate.
Need help?
Vanguard Law acts for workers. We’ll review your contract and package, value your common-law claim, and build a negotiation plan that covers pay, benefits, bonus, and risk before you sign anything.
General information only, not legal advice.