Ontario Severance

Mitigation — Ontario Employment Law

272 casesDecisions from 1917–2026

About Mitigation

After being terminated from your job in Ontario, you might feel lost and overwhelmed. While you may be entitled to damages for wrongful dismissal, it's crucial to understand a legal concept known as the 'duty to mitigate'. In simple terms, mitigation means you are legally required to take reasonable steps to reduce your financial losses by trying to find a new, comparable job. You cannot simply sit back and wait for a settlement from your former employer; the law expects you to be proactive.

This duty is a central element in wrongful dismissal cases. Your former employer will almost certainly raise the issue, and the burden will be on them to prove that you failed to make reasonable efforts to find work. If they succeed, a court can reduce the amount of damages you receive. What constitutes a 'reasonable effort' is highly specific to your situation. It depends on factors like your age, the type of work you did, your salary, and the job market conditions for your field. For example, a senior executive is not expected to apply for entry-level positions, but they are expected to actively seek out comparable senior roles.

It is essential to distinguish this common law duty from your statutory entitlements. Your minimum entitlements to termination pay and severance pay under Ontario's Employment Standards Act, 2000 (ESA) are not subject to mitigation. You receive this money regardless of whether you find a new job the next day. The duty to mitigate only applies to the additional 'reasonable notice' damages you might be awarded by a court in a wrongful dismissal claim.

Because the success of your mitigation efforts can significantly impact the outcome of a legal claim, documenting your job search is critical. Keeping detailed records can be your best defence against an employer's claim that you didn't try hard enough. Every employment situation is unique, and assessing whether your job search efforts meet the legal standard requires a careful look at the facts, making professional guidance invaluable in these circumstances.

Frequently Asked Questions

What does the 'duty to mitigate' actually mean after I've been fired?

It means you have a legal responsibility to actively look for a new job that is comparable to the one you lost. This is to minimize the financial damages resulting from your termination. Your efforts directly impact how much wrongful dismissal pay (beyond ESA minimums) you may be entitled to.

Do I have to accept any job offer to show I'm mitigating?

No. You are only expected to seek and accept 'comparable employment,' which means a job with similar pay, status, responsibilities, and location. You are not required to take a significant pay cut or a job in a completely different field, especially in the early stages of your search.

How can I prove that I tried to mitigate my damages?

Documentation is key. Keep a detailed log of your job search, including websites you've used, positions you've applied for, networking contacts you've made, interviews you've attended, and any job offers you've received. Save all related emails and application confirmations.

Does mitigation affect the termination pay and severance my employer paid under the ESA?

No, it does not. Your entitlements under the Employment Standards Act, 2000 are a minimum standard and are not reduced by mitigation. The duty to mitigate only applies to common law reasonable notice damages, which are awarded in a wrongful dismissal claim.

What happens if I find a new job that pays less?

If you take a lower-paying job as part of a reasonable mitigation effort, you may still be able to claim the difference in salary from your former employer for the remainder of your notice period. This is a common part of damage calculations in wrongful dismissal cases.

My former employer is accusing me of not looking for work. When should I get a lawyer?

You should consult with an employment lawyer immediately if your former employer alleges you have failed to mitigate. A lawyer can help you assess the strength of your job search evidence and formulate a proper response to protect your claim for damages.

Common Scenarios

  • A software developer is terminated and keeps a detailed spreadsheet of the 50 jobs they applied for over three months, including dates, links, and outcomes.
  • A senior manager is terminated and refuses to apply for any roles that aren't at the Vice-President level, potentially narrowing their job search too much and risking a failure to mitigate argument.
  • After being laid off, a construction worker is offered a much lower-paying job by a different company and turns it down, which is likely considered a reasonable refusal in the context of mitigation.
  • An administrative assistant receives a job offer from their former employer to return to a similar role but refuses it without a good reason, which a court could see as a failure to mitigate damages.
  • A marketing professional decides to start their own consulting business after being terminated, which can count as mitigation if it's a genuine and reasonable attempt to earn income.

What You Should Know

  • Start your job search immediately after termination and keep meticulous records of every application, interview, and networking conversation.
  • Focus your search on roles comparable to your previous one in terms of salary, seniority, and duties. You can broaden your search as more time passes.
  • Do not automatically ignore or reject a recall or re-employment offer from your former employer; refusing a reasonable offer can be viewed as a failure to mitigate.
  • Remember that your statutory pay under the Employment Standards Act, 2000 is safe; mitigation only impacts your potential common law wrongful dismissal damages.
  • If you are unsure whether a job offer is 'comparable' or how to respond to an allegation of failure to mitigate, seek advice from an Ontario employment lawyer to protect your rights.

Featured Cases

C. v. W.

2026 ONCA 634 (CanLII) · 2026-09-10

C. v. W.: Fiduciary Duties and Joint Ventures

This was an appeal to the Court of Appeal from a trial judge's decision dismissing the plaintiffs' claims and allowing the defendants' counterclaim for breach of contract. The employee and his company claimed breach of confidence, breach of fiduciary duty, and breach of a joint venture agreement regarding a research and development project, while the employer counterclaimed for negligent misrepresentation and breach of contract. The trial judge dismissed the plaintiffs' claims and awarded $1 to the employer on the counterclaim because the employee took work product when he resigned. The Court of Appeal upheld the dismissal of the plaintiffs' claims because they were employees and commercial parties with no joint venture or fiduciary relationship, but allowed the appeal on the counterclaim, dismissing it because the breach was not pleaded and there was no evidence of what was taken. The costs appeal was dismissed.

breach of contract confidential information damages employment contract fiduciary duties mitigation pleadings

F. v. Susur Lee Group Inc.

2026 ONSC 4380 (CanLII) · 2026-07-28

Constructive Dismissal Appeal: Condonation and Mitigation

This is an appeal to the Divisional Court from a trial judge's decision in a constructive dismissal case involving the Susur Lee Group Inc. The appeal addressed whether the employee's silence and delayed proceedings constituted condonation of the employer's repudiatory breach, whether ESA payments during a closure amounted to a return to work, and whether continued work could serve as mitigation. The Divisional Court found legal errors in the trial judge's analysis regarding condonation, the effect of ESA payments, and mitigation, allowing the appeal and ordering a new trial.

appeal condonation constructive dismissal mitigation new trial

S. v. Sleep Country Canada Inc.

2026 ONSC 3735 (CanLII) · 2026-06-25

Wrongful Dismissal: Mitigation Production Order

This is a procedural case management decision in a wrongful dismissal action involving Sleep Country Canada Inc. The court addressed motions regarding non-compliance with documentary production, specifically focusing on the adequacy of mitigation records and the permissibility of rolling productions. The motion to strike the action was dismissed, but the court ordered further examinations and imposed a strict production timetable, reserving costs.

case management documentary production mitigation wrongful dismissal

W. v. Brandt Tractor Inc.

2026 ONCA 272 (CanLII) · 2026-04-16

Wrongful Dismissal: Mitigation Income Deducted

This is an appeal from a wrongful dismissal trial decision addressing whether just cause existed for the employee's termination and whether the employee failed to mitigate damages. The Court of Appeal found that the trial judge erred in refusing to deduct mitigation income earned from a lower-paying position during the notice period, but upheld the finding that just cause was not established.

damages just cause mitigation wrongful dismissal

H. v. M&C Investments Incorporated

2026 ONSC 648 (CanLII) · 2026-02-02

Wrongful Dismissal: Discovery of Mitigation Documents

This is an interlocutory discovery motion within a wrongful dismissal action, determining whether an employee must produce further documents regarding their mitigation efforts. The court considered the relevance of mitigation records to the assessment of damages and the burden of proof under established employment law principles.

discovery employment law mitigation wrongful dismissal

W. v. Canaccord Genuity Corp.

2026 ONSC 547 (CanLII) · 2026-01-28

Wrongful Dismissal: Managing Director Awarded 21 Months Notice

This wrongful dismissal case involved a Managing Director investment banker terminated from his senior role in a specialised mining practice. The court determined that 21 months was the reasonable notice period, applying the Bardal factors including the character of employment, age, and limited comparable opportunities. The court also addressed compensation during the notice period by adopting a comparator method for discretionary bonuses and adjusted damages for mitigation and deferred compensation.

bonus compensation mitigation reasonable notice wrongful dismissal

T. v. Best Buy Canada Ltd.

2025 ONSC 5814 (CanLII) · 2025-10-15

Wrongful Dismissal: 15-Year Employee Awarded 18 Months Notice

This wrongful dismissal case addressed whether an employer proved just cause for terminating a specialised technician with fifteen years of service. The court found the employer failed to meet the burden of proving intentional privacy breaches, establishing that the dismissal was without cause. Consequently, the court awarded eighteen months' reasonable notice, rejecting the employer's mitigation defence and denying claims for aggravated or punitive damages.

just cause mitigation reasonable notice wrongful dismissal

P. v. Vulsay Industries Ltd.

2025 ONSC 5370 (CanLII) · 2025-09-22

Wrongful Dismissal: 65-Year-Old Manager Awarded 26 Months Notice

This wrongful dismissal case addressed the reasonable notice period for a 65-year-old laboratory manager with 40 years of service. The court found that the employee's age and length of service constituted exceptional circumstances, justifying a notice period of 26 months. The employer's mitigation defence was rejected, and the claim for a contingency discount on damages was refused.

exceptional circumstances mitigation reasonable notice wrongful dismissal

B. v. 6HARMONICS INC.

2025 ONSC 3610 (CanLII) · 2025-06-18

Wrongful Dismissal: Default Judgment for 9 Months' Salary

This is a default judgment motion in a wrongful dismissal case where the defendant failed to respond to the action. The court found the defendant liable for breach of the employment agreement, specifically for failing to pay nine months' salary as stipulated in the contract. Applying the principle from Bowes v. Goss Power Products Ltd., the court held there was no duty to mitigate damages where the contract fixed liquidated damages, awarding the plaintiff $184,166.69 in damages.

breach of contract damages default judgment mitigation wrongful dismissal

A. v. Fiera Foods Company

2025 ONSC 3240 (CanLII) · 2025-05-30

Wrongful Dismissal: 13-Year Employee Awarded 10 Months' Notice

This wrongful dismissal case involved an employee with 13 years of service who was terminated for alleged time theft and dishonesty. The court considered whether the employer had just cause to terminate the employee based on an investigation supported by video and punch clock data, rejecting the employee's claims of reprisal for whistleblowing and unionization. The court awarded ten months' notice but denied moral or punitive damages due to the lack of bad faith, and drew an adverse inference against the employee for failing to provide evidence of mitigation efforts.

just cause mitigation notice period time theft wrongful dismissal

R.T. v. Grenville Management Inc.

2025 ONSC 3087 (CanLII) · 2025-05-28

Constructive Dismissal: 16 Months Notice Awarded

This case addresses whether a unilateral layoff constituted constructive dismissal at common law and whether Ontario Regulation 2020/228 precluded such claims during the pandemic. The court held that the regulation did not displace common law rights and awarded 16 months' notice, considering the pandemic's impact on the job market. The employer's mitigation defence was rejected due to the employee's health issues and belief in the layoff's validity, but punitive damages were denied.

constructive dismissal mitigation pandemic reasonable notice unilateral layoff

F. v Susur Lee Group

2025 CanLII 154498 (ON SCSM) · 2025-05-13

Constructive Dismissal: Temporary Lay-off and Condonation

This case addresses whether a unilateral temporary lay-off without a contractual term amounted to constructive dismissal and whether the employee condoned the lay-off by returning to work. The court applied the Potter and Pham framework, finding that the employee's recall within 12 weeks and acceptance of pay constituted condonation rather than mitigation, leading to the dismissal of the constructive dismissal claim.

condonation constructive dismissal employment standards mitigation temporary layoff

B. v. Salesforce.com

2025 ONSC 2580 (CanLII) · 2025-04-28

Wrongful Dismissal: 11 Months' Notice Cut to 8

This wrongful dismissal case addressed the reasonable notice period for a plaintiff terminated after eight years of service, where the court found 11 months’ reasonable notice and reduced it to eight because the plaintiff would not produce evidence of earnings during the job search. The court also ruled on compensation during the notice period, finding the employer's bonus policy unenforceable, but denied bad faith damages and reimbursement for retraining expenses.

bad faith mitigation reasonable notice termination clause wrongful dismissal

Pateman v. Koolatron Corporation

2025 ONCA 224 (CanLII) · 2025-03-24

Wrongful Dismissal Appeal: Damages Recalculated to $88,509

This is an appeal from a wrongful dismissal trial decision involving an employee terminated due to a shortage of work. The Court of Appeal upheld the finding that the dismissal was without cause but corrected a mathematical error in the trial judge's calculation of damages, increasing the final award to $88,509.05.

appeal calculation error damages mitigation wrongful dismissal

P. v. Sharon Veterinary Clinic Professional Corporation

2025 ONSC 622 (CanLII) · 2025-01-29

Constructive Dismissal: Veterinarian Resignation Claim

This case involved a veterinarian with 20 years of service who claimed constructive dismissal after his employer refused to send a termination letter to a client. The court determined that the employee's refusal to return to work constituted a resignation rather than a constructive dismissal, leading to the dismissal of his wrongful dismissal and Human Rights Code claims.

constructive dismissal human rights mitigation resignation wrongful dismissal

B. v. M.

2024 ONSC 7015 (CanLII) · 2024-12-13

Termination for Cause: Investment Advisor Case

This case addresses whether an investment advisor was terminated with just cause for engaging in unauthorized discretionary trading. The court applied the proportionality test from McKinley and found the employer had just cause. In the alternative, if the termination had been without cause, the court would have assessed reasonable notice at 11 months, reduced by three months due to a failure to mitigate. Claims for lost opportunity to sell a book of business and corporate oppression were dismissed.

employment law mitigation reasonable notice termination for cause

B. v Welcome Home Children’s Residence Inc.

2024 CanLII 151672 (ON SCSM) · 2024-09-25

Constructive Dismissal: 6.5 Months Notice Awarded

This case addresses whether an employee was constructively dismissed due to unilateral changes, including reduced hours and removed responsibilities. The court found constructive dismissal occurred and awarded damages, fixing the reasonable notice period at 6.5 months inclusive of statutory notice. The court also addressed mitigation, deducting 30% of the employee's government wages as deductible income, and rejected an after-acquired cause defense based on time theft.

constructive dismissal mitigation reasonable notice unilateral changes

M. v. Mercantile Exchange Corporation

2024 CanLII 71128 (ON SC) · 2024-07-24

A wrongful dismissal case addressing issues of damages and the employee's duty to mitigate losses. The case also involves a dispute regarding a medical examination.

damages medical examination mitigation wrongful dismissal

T. v. Aurora Hotel Group

2024 ONCA 213 (CanLII) · 2024-03-20

Wrongful Dismissal Appeal: Mitigation and Damages Upheld

This is an appeal from a wrongful dismissal trial decision regarding the calculation of damages. The Court of Appeal dismissed the appeal, finding no palpable and overriding error in the trial judge's determination that the employee made reasonable efforts to mitigate losses, the award for lost benefits, and the moral damages awarded for the manner of dismissal.

loss of benefits mitigation moral damages wrongful dismissal

G. v. Kinsdale Carriers

2024 ONSC 1060 (CanLII) · 2024-02-20

A wrongful dismissal case addressing issues of reasonable notice and the employee's duty to mitigate damages.

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