Understanding Employment Contracts in Ontario

An employment contract is more than a job offer—it defines your rights, your employer’s obligations, and the legal boundaries of your working relationship.

In Ontario, employment agreements are shaped by three pillars:

1. The Employment Standards Act, 2000 (ESA),
2. Common law principles, and
3. Recent court decisions that interpret and enforce those principles.

Failing to understand these layers can expose both employers and employees to serious legal risks—from invalid termination clauses to costly wrongful dismissal claims.

Below, we unpack the key elements every Ontario employment contract must comply with, supported by recent case law and practical advice.

The Legal Foundation: Employment Standards Act (ESA)

The Employment Standards Act, 2000 sets the minimum standards that every employment relationship in Ontario must meet.

If a contract offers less than what the ESA guarantees, that clause is invalid to that extent. Employers simply cannot contract out of ESA minimums.

Key ESA Protections

ESA Area	What It Covers
Wages & Hours	Minimum wage, overtime pay, and maximum daily/weekly hours
Public Holidays & Vacation	Paid holidays, vacation time, and pay
Termination & Severance	Minimum notice or pay in lieu; severance for long-term employees
Leaves	Pregnancy, parental, family medical, bereavement, and others
Equal Pay	Prohibits pay discrimination based on employment status or gender

The ESA applies to most employees in Ontario, except for certain federally regulated industries (like banks and airlines), which fall under the Canada Labour Code.

Common Law Rights and Wrongful Dismissal

Beyond the ESA, employees are protected under common law, which is developed through court decisions.

Reasonable Notice

If an employee is terminated without cause and the contract doesn’t contain a legally valid termination clause, they are entitled to reasonable notice, often much longer than ESA minimums.

Courts assess reasonable notice using the Bardal factors (from Bardal v. Globe & Mail Ltd., 1960):

• Length of service
• Age
• Position or seniority
• Availability of comparable employment

Constructive Dismissal

An employer cannot unilaterally make major changes—like cutting pay, changing work hours, or relocating an employee—without consent.
If such a change fundamentally alters the job, it may be considered constructive dismissal, allowing the employee to treat it as termination and seek damages.

Common law rights operate by default. To override them, employers must draft termination clauses that clearly and legally limit entitlements—something many fail to do correctly.

Case Law: What Ontario Courts Are Saying

Recent Ontario cases have clarified (and complicated) how courts interpret employment contracts.

Dufault v. Township of Ignace (2024)

• The contract allowed the employer to terminate “at any time” and “in its sole discretion.”
• The court found this violated the ESA because it potentially allowed termination without proper notice or pay.
• Result: The clause—and therefore the entire termination provision—was unenforceable.

Baker v. Van Dolder’s Home Team Inc. (2025)

• Reaffirmed Dufault: “At any time” clauses are invalid if they do not guarantee ESA minimums.
• Employers cannot rely on wording that gives them unrestricted power to terminate.

Waksdale v. Swegon North America Inc. (2020)

• Landmark decision by the Court of Appeal.
• If any part of a termination clause violates the ESA, the entire termination provision fails—even if other parts are compliant.
• Severability clauses don’t save unlawful termination wording.

Li v. Wayfair Canada Inc. (2025)

• The court upheld a clause limiting termination to ESA minimums because the language did not violate the Act.
• Key takeaway: Wording and context matter—slight differences can determine enforceability.

Key Components of a Well-Drafted Employment Contract

A clear and compliant contract minimizes disputes and ensures both parties understand their rights.

Component	What It Should Include
Employment Status	Specify if the role is full-time, part-time, or fixed-term. Include start and end dates if applicable.
Duties & Responsibilities	Clear job description to avoid constructive dismissal disputes.
Compensation & Benefits	Define salary/hourly rate, commissions, bonuses, benefits, and payment schedule.
Hours, Location, Remote Work	Clarify hours, overtime rules, and whether location or remote work may change.
Probation Period	Commonly 90 days; must still respect ESA rights (e.g., unpaid wages, discrimination protection).
Termination & Notice	Must comply with ESA minimums and common law principles. Avoid broad phrases like “at any time.”
Severance Pay	Required under ESA for employees with 5+ years of service and employers with 5+ employees.
Confidentiality, Non-Solicitation, Non-Competition	Must be reasonable. Note: Non-compete clauses are banned in Ontario (since October 2021) except for executives.

Legal Nuances Employers Often Miss

The Difference Between ESA and Common Law Notice

ESA provides minimum notice, while common law can entitle employees to months more.
Without a valid termination clause, employees may claim full common law notice.

Wording Matters

Terms like “at any time” or “sole discretion” can invalidate an entire contract if they undermine ESA rights. Courts take a strict interpretation approach in favour of employees.

Fixed-Term Contracts

If a fixed-term contract is ended early without a clear early-termination clause, the employee can often claim pay for the remainder of the term.

Constructive Dismissal

Employers should avoid unapproved changes to key terms—like location, pay, or job title—since these can lead to claims of constructive dismissal.

Frustration of Contract

If unforeseen events make employment impossible (e.g., loss of license, regulatory change), the contract may be frustrated, releasing both parties from obligations.

Practical Guidance

For Employers

• Review employment contracts regularly to ensure compliance with the ESA and current case law (Waksdale, Dufault, Baker).
• Use clear, specific language—avoid discretionary phrases.
• Document discussions and obtain employee acknowledgment on key terms.

For Employees

• Don’t assume your contract is final—get legal advice before signing.
• If terminated, review your notice or severance offer against ESA and common law standards.
• Keep records of all communications and changes in job duties.

Conclusion

Employment contracts are the foundation of the employer–employee relationship in Ontario. However, they must align with both statutory and common law protections.
Recent cases like Waksdale and Dufault make it clear: the language of your contract can determine your legal rights.

Whether you’re drafting, negotiating, or disputing an employment contract, understanding the ESA framework and the evolving case law is crucial.