Ontario Severance

Fiduciary Duties — Ontario Employment Law

236 casesDecisions from 1933–2026

About Fiduciary Duties

In Ontario employment law, not all employees are viewed in the same light. While every employee owes a basic duty of loyalty and honesty to their employer, a select group of senior or key employees are held to a much higher standard: a fiduciary duty. This is a powerful legal concept, often arising in disputes involving senior executives, competition, and confidential information. A fiduciary duty is the most stringent duty of loyalty recognized by law. It requires an employee to act exclusively in the best interests of their employer, subordinating their own personal interests entirely. This goes far beyond the standard employee's obligation to simply do their job honestly.

Who is a fiduciary? It’s not determined by a job title alone, but by the substance of the role. Courts look at factors like the employee's ability to direct the company's actions, their influence over business decisions, and their access to sensitive strategic information. Typically, senior executives, officers, and directors are considered fiduciaries. However, a mid-level manager or even a senior technical employee with unique control over a vital part of the business could also be found to have these duties.

The core obligations of a fiduciary employee include an unwavering duty of loyalty, a duty to avoid any conflicts of interest (both real and potential), a duty not to profit personally from their position, and a strict duty to protect confidential information. Crucially, a fiduciary cannot compete with their employer, which includes taking preparatory steps to set up a competing business while still employed. A breach of these duties is a serious matter and can constitute just cause for immediate dismissal without any severance. Furthermore, an employer can sue a former fiduciary employee for damages, such as lost profits resulting from the breach. The specifics of each situation heavily influence whether an employee is deemed a fiduciary, and anyone in a senior role facing a potential conflict should seek professional guidance to understand their heightened obligations.

Frequently Asked Questions

How do I know if I am a fiduciary employee in Ontario?

It's based on your function, not your title. If you have significant independent authority, can direct the company's business, or have access to vital confidential information that makes the employer vulnerable, a court may find you are a fiduciary.

What is the difference between a fiduciary duty and the general duty of good faith?

All employees owe a duty of good faith and fidelity (e.g., not to steal or be dishonest). A fiduciary duty is a much higher, stricter obligation of utmost loyalty that applies only to senior or key employees, requiring them to always act in the employer's best interests.

Can I look for another job while I'm still employed as a fiduciary?

Yes, you can look for another job. However, you cannot take preparatory steps to compete with your current employer, such as soliciting clients or co-workers, or using confidential company information to benefit your future venture.

My employment contract doesn't say I'm a 'fiduciary'. Does that mean I'm not one?

Not necessarily. Fiduciary duties are often implied by law based on the nature of your role and responsibilities. The absence of the term in your contract does not automatically absolve you of these higher duties if your position warrants them.

What are the consequences if I breach my fiduciary duty?

A breach can be grounds for just cause termination, meaning you would not be entitled to notice or severance pay. Your employer could also sue you for any financial losses they suffered as a result of your actions.

Is there a time limit for my former employer to sue me for breaching my duties?

Yes, in Ontario, the standard limitation period under the Limitations Act, 2002 is generally two years from the date the employer discovered (or ought to have discovered) the breach and the resulting damages.

When should I consult an employment lawyer about fiduciary duties?

You should seek legal advice if you are a senior employee planning to leave to start a new business, if you've been accused of a conflict of interest, or if your employer is alleging you acted against their interests. Proactive advice can prevent costly litigation later.

Common Scenarios

  • A Chief Financial Officer resigns and, before leaving, copies the company's strategic financial plans and supplier lists to use at a new competing startup.
  • The head of research and development learns of a major business opportunity during a conference and, instead of reporting it, diverts it to a private company they secretly own.
  • A long-serving sales director with deep client relationships resigns and immediately begins contacting her former clients to move their business to her new employer.
  • An employee who is a director on the company's board votes to approve a large contract with a vendor company where their sibling is a major shareholder, without disclosing the family connection.

What You Should Know

  • If you hold a senior position, always operate under the assumption that you owe a higher duty of loyalty to your employer, even if it's not written in your contract.
  • Proactively disclose any potential or perceived conflicts of interest to your employer in writing. Transparency is your best defence against a future allegation.
  • Never use company time, property, or confidential information to prepare for post-employment activities, especially if they could be seen as competitive.
  • If you are accused of breaching a fiduciary duty, do not destroy or alter any records. Instead, secure your own copies of relevant documents like your employment contract and performance reviews, and seek legal counsel immediately.
  • Before resigning from a key role to join or start a competing business, consult an employment lawyer to understand the specific post-employment restrictions that may apply to you as a fiduciary.

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

Riva Plumbing Limited v. F.

2026 ONCA 297 (CanLII) · 2026-04-24

Riva Plumbing Limited v. F. - Unpaid Bonus, Non-Compete

This is an appeal to the Court of Appeal from a trial judge's decision dismissing the appellants' claims and allowing a counterclaim. The employer sued former employees for economic torts, breach of fiduciary duties, and breach of a settlement agreement containing non-competition clauses. One former employee counterclaimed for an unpaid bonus. The trial judge dismissed the employer's claims due to lack of evidence and allowed the counterclaim, finding the bonus was non-discretionary and did not require ongoing employment. The Court of Appeal dismissed the appeal, finding no errors in the trial judge's factual and credibility findings.

employment contract fiduciary duties restrictive covenants bonuses breach of contract

F. v. P.

2026 ONCA 277 (CanLII) · 2026-04-17

F. v. P.: Employer Wins Summary Judgment for Fraud

This is an appeal to the Court of Appeal from a summary judgment decision in an action for fraud, conversion, and breach of fiduciary duty against a former employee. The employer, Capital Canada, and its owner sued the former office manager and her husband after discovering unauthorized transfers of over $1.1 million from the owner's personal accounts to the employee. The motion judge granted summary judgment against the employee for damages and punitive damages, and ordered a reference to trace funds to her husband for a knowing receipt claim. The Court of Appeal dismissed the employee's appeal, except to set aside the punitive damages award in favour of the corporate employer, finding the motion judge made no reversible error in concluding she misappropriated the funds. The Court of Appeal allowed the husband's appeal, dismissing the knowing assistance claim and directing the knowing receipt claim to trial because actual receipt of funds by him was a genuine issue requiring a trial.

wrongful dismissal fraud fiduciary duties summary judgment punitive damages civil procedure

Titus Steel Company Limited v. H.

2025 ONCA 693 (CanLII) · 2025-10-09

Former Employee Fiduciary Duties Appeal

This is an appeal from a trial decision concerning a former employee who established a competing business after resigning. The Court of Appeal reviewed whether the respondent owed fiduciary duties, whether those duties were breached, and whether the trial judge's reasons were sufficient for appellate review. The appeal was dismissed as there was no reversible error in the trial judge's findings.

appellate review breach of confidence employment duties fiduciary duties former employee

T. v. D.

2025 ONSC 5104 (CanLII) · 2025-09-29

Termination for Cause: Fraud and Fiduciary Breach

This case addresses whether an employee's termination for cause was justified following a fraudulent invoicing scheme and breach of fiduciary duties. The court applied the McKinley test to determine if the dishonest conduct warranted dismissal, ultimately upholding the termination as a proportionate response to the breach of trust.

breach of trust fiduciary duties fraud termination for cause wrongful dismissal

Riva Plumbing Limited v. F.

2025 ONSC 3219 (CanLII) · 2025-05-29

Fiduciary Duties & Non-Compete: Riva Plumbing v. F.

This case addresses breaches of fiduciary duties and non-competition agreements by a former director and duties of good faith by employees who planned a competing business. The court found no breach of fiduciary or non-compete obligations due to lack of evidence of competition or misuse of confidential information. Additionally, the court awarded pro-rated bonuses to employees who resigned before the fiscal year-end, determining the bonuses were integral to compensation.

bonus entitlement fiduciary duties good faith non-competition

Total Meter Services Inc. v. GVM Integration

2025 ONCA 321 (CanLII) · 2025-04-29

Former Employee Liable for Breach of Confidence and Duty

This was an appeal to the Court of Appeal from a trial decision about a former employee's breach of fiduciary duty and confidence. The employee formed a competing business and used the employer's source code and confidential information. The trial judge found the employee liable and awarded $750,000 in disgorgement of profits. The Court of Appeal upheld the liability finding but allowed the appeal in part because one of the claims added by amendment (the "TCS Opportunities claim") was a new cause of action and statute-barred under the Limitations Act. The damages were reduced to $518,659.26.

adverse inference amendments to pleadings breach of confidence discovery disgorgement of profits employment contract fiduciary duties limitation periods

Arc Compute v. A.A., M.B. et al.

2025 ONSC 1745 (CanLII) · 2025-03-20

Interlocutory Injunction: Fiduciary Duties & Non-Solicitation

An interlocutory proceeding involving departing employees accused of breaching fiduciary duties and employment contracts by misusing confidential information and soliciting clients. The court is determining whether to grant an injunction based on the test for serious issue to be tried, irreparable harm, and balance of convenience, while assessing the enforceability of non-solicitation clauses and confidentiality obligations.

confidential information employment contract fiduciary duties interlocutory injunction restrictive covenants

Coscarella Dentistry Professional Corporation v. H.

2025 ONCA 118 (CanLII) · 2025-02-18

Dentist Confidentiality & Solicitation Appeal

An appeal by a dental corporation against a trial judge's decision that a departing associate dentist did not breach confidentiality, fiduciary duties, or engage in improper solicitation of patients. The Court of Appeal reviewed whether the dentist's access to patient records to notify them of the practice relocation constituted a breach of professional obligations or contractual good faith.

confidentiality departing employee fiduciary duties patient records solicitation

Tar Heel Investments Inc. v. H.L. Staebler Company Limited et al

2025 ONSC 240 (CanLII) · 2025-01-10

Constructive Dismissal: Unilateral Changes to Salary

This case involves a dispute regarding whether the defendant Arseneau was constructively dismissed due to substantial changes to essential terms of employment, including a guaranteed salary. The court found that constructive dismissal was established. The case also addressed related issues regarding the ownership of a book of business, fiduciary duties, and restrictive covenants, ultimately finding no breach of fiduciary duty or restrictive covenant by the defendants.

constructive dismissal employment contract fiduciary duties restrictive covenants

W. v. P. et al., P. v. W.

2024 ONSC 5873 (CanLII) · 2024-10-23

Departing Lawyer Fiduciary Duties & Compensation

This is a civil procedure ruling on summary judgment regarding a dispute between departing lawyers and their former firm. The court addressed issues of professional responsibility, fiduciary duties, and compensation for unbilled work in progress, dismissing the damages claim due to a lack of evidence of harm or improper conduct.

compensation departing lawyer fiduciary duties professional conduct summary judgment

A. v. ICICI Bank of Canada

2024 ONSC 4115 (CanLII) · 2024-07-23

A wrongful dismissal case involving allegations related to fiduciary duties. The case addresses the legal obligations of the employee and the circumstances of termination.

employment law fiduciary duties termination wrongful dismissal

Strength-N-U Inc. v. S.

2024 ONSC 4009 (CanLII) · 2024-07-16

An interlocutory injunction application concerning alleged breaches of fiduciary duty and contract law, likely involving an employment or post-employment relationship.

contract law employment contract fiduciary duties interlocutory injunction

T. v. H.

2024 ONSC 3666 (CanLII) · 2024-06-25

Employee Confidentiality and Liability Duties

This case addresses the duties and liability of an employee, specifically concerning confidentiality obligations within an employment relationship.

confidentiality employee duties employment contract fiduciary duties

LivingArt Kitchens Inc. v. M.

2024 ONSC 3088 (CanLII) · 2024-05-30

Interlocutory Injunction: Fiduciary Duties & Restrictive Covenants

This interlocutory motion concerned an application for an injunction against former employees accused of misappropriating confidential information and breaching fiduciary duties. The court applied the RJR-MacDonald test and found no strong prima facie case of a fiduciary relationship or breach, noting that the restrictive covenants were contestable and likely unenforceable under the Employment Standards Act, 2000. Consequently, the balance of convenience favored the defendants, and the plaintiff failed to demonstrate irreparable harm.

employment contract fiduciary duties interlocutory injunction restrictive covenants

Abaxx Technologies Inc. v. Pasig and Hudson Private Limited

2024 ONCA 164 (CanLII) · 2024-03-01

Appeal Dismissed on Jurisdiction Over Former Executive

This is an appeal to the Court of Appeal from a motion judge's decision dismissing the action for lack of jurisdiction. The employer plaintiffs sued a former executive and related companies for breach of fiduciary duties, conspiracy, and misappropriation of corporate opportunities. The motion judge found that the plaintiffs failed to establish a real and substantial connection to Ontario, as the defendants were foreign and the relevant business occurred outside the province. The Court of Appeal agreed that the plaintiffs did not demonstrate a good arguable case for jurisdiction in Ontario. The appeal was dismissed.

jurisdiction employment contract fiduciary duties breach of contract confidential information

Northwest Protection Services Ltd. v. W.

2024 ONSC 1292 (CanLII) · 2024-03-01

This is a contractual dispute involving allegations of breach of contract, fiduciary duty, and breach of confidence against an individual associated with Northwest Protection Services Ltd. The case also raises issues of constructive trust and misrepresentation under the Private Security and Investigative Services Act.

breach of confidence breach of contract employment contract fiduciary duties

R. v. Ecolab Co.

2023 ONSC 5995 (CanLII) · 2023-10-23

Former Employee Breach of Confidence & Fiduciary Duty

This interlocutory proceeding addresses whether a former employee breached fiduciary duties and employment contract confidentiality obligations by retaining and attempting to use confidential documents after termination. The court rejected the plaintiff's argument that alleged employer misconduct negated the confidentiality of the documents and granted an injunction requiring the destruction of unlawfully obtained materials to prevent misuse of confidential business information.

breach of confidence confidential information employment contract fiduciary duties injunctive relief

Morgan Canada Corporation v. M.

2023 ONSC 5217 (CanLII) · 2023-09-15

Former Employees: Injunction for Breach of Confidence Dismissed

This interlocutory motion addressed a plaintiff's request for an injunction to prevent former employees from working for a competitor and using confidential information. The court applied the RJR-MacDonald test and found that the plaintiff failed to demonstrate a strong prima facie case for breach of fiduciary duty, breach of confidence, or spoliation of evidence. Consequently, the court dismissed the application for an injunction and a sealing order.

breach of confidence fiduciary duties former employee interlocutory injunction

Arvan Rehab Group Inc. v. M. et al.

2023 ONSC 4213 (CanLII) · 2023-07-20

An employment law dispute involving allegations of breach of fiduciary duty by an employee or former employee of Arvan Rehab Group Inc.

breach of duty employment contract employment law fiduciary duties