Unfair Labour Practices — Ontario Employment Law
Related Keywords
About Unfair Labour Practices
In Ontario workplaces, an "unfair labour practice" is not simply a colloquial term for an employer acting unjustly. Under the province's Labour Relations Act, 1995 (LRA), it is a specific legal violation that interferes with the rights of employees, employers, or trade unions. The fundamental purpose of this legislation is to protect workers' freedoms to organize, form trade unions, and engage in collective bargaining without coercion or retaliation.
Most unfair labour practice (ULP) complaints involve allegations against employers during union organizing drives or contract negotiations. A core concept in these disputes is "anti-union animus." If an employer disciplines, demotes, or terminates a worker, and even a fraction of the motivation was to punish the worker for union activity, it constitutes an unfair labour practice. Other common violations include unlawful interference (such as threatening job losses if a union is voted in), bargaining in bad faith, or unilaterally altering working conditions during a "statutory freeze" period while a collective agreement is being negotiated.
The Ontario Labour Relations Board (OLRB) has exclusive jurisdiction over these matters. Ontario courts have repeatedly established that civil lawsuits attempting to reframe unfair labour practices as civil wrongs—such as suing an employer for "conspiracy to injure" or "inducing breach of contract" based on toxic labour bargaining tactics—will generally be blocked. A legal concept known as the "essential character test" requires that disputes inherently rooted in collective bargaining or unionization must go to the OLRB, not the civil courts.
In cases where an employer's actions are so severe that a true reflection of the workers' wishes cannot be gathered through a traditional vote, the OLRB holds the power to order automatic union certification as a remedy. Assessing whether an organization's actions cross the line into an unfair labour practice requires untangling significant factual history, making it prudent to have a qualified labour lawyer evaluate the sequence of events before initiating formal proceedings.
Frequently Asked Questions
What exactly is an unfair labour practice in Ontario?
An unfair labour practice is specific conduct that violates the Ontario Labour Relations Act. This most commonly includes employers penalizing workers for union organizing, unions coercing employees, or either side refusing to bargain in good faith during contract negotiations.
Can I claim an unfair labour practice if I am not in a union?
Yes, but typically only if you are in the process of trying to form or join one. If a non-unionized employer is simply treating you poorly or firing you unjustly without a union context, your remedies fall under the Employment Standards Act or common law as a wrongful dismissal, rather than a ULP.
Can my employer fire me just for discussing a union?
No. Terminating an employee for discussing, organizing, or supporting a trade union is a direct violation of the Labour Relations Act. If the termination is tainted by "anti-union animus," the Labour Relations Board can order your reinstatement with back pay.
What is the deadline to file an unfair labour practice complaint?
While the Labour Relations Act does not set a strict mathematical deadline like a conventional civil statute of limitations, the OLRB expects complaints to be filed promptly. Unreasonable delays—often counted in weeks or a few months from the incident—can result in the Board refusing to hear the case.
Does my employer have to prove they didn't fire me for union activity?
Yes. The Labour Relations Act features a "reverse onus" provision for discipline and discharge cases during organizing campaigns. The employer must prove to the Board that their decision to terminate an employee was completely free of any anti-union motive.
When should an organizer or employee seek a legal professional's help?
Because the OLRB conducts formal hearings with stringent rules regarding evidence and procedure, consulting a labour lawyer the moment management begins holding captive-audience meetings or firing key union supporters will ensure vital evidence isn't lost and proper applications are filed quickly.
Common Scenarios
- A warehouse worker is openly handing out union membership cards in the break room. The next morning, human resources abruptly terminates the worker's employment, vaguely citing a "restructuring" that oddly doesn't affect anyone else on the shift.
- During the negotiation of a first collective agreement, the management team persistently refuses to provide the union with essential financial disclosures to justify a proposed wage freeze, and instead emails employees directly to offer them a flat bonus if they agree to decertify the union.
- A retail company receives a formal notice that its employees have applied for union representation. Days later, without consulting the proposed union, the company revokes all scheduled shift premiums and employee discounts, violating the statutory freeze on working conditions.
What You Should Know
- If you suspect management is targeting union supporters, meticulously document dates, times, and contents of meetings or statements, as cases often turn on circumstantial evidence rather than explicit admissions.
- Do not attempt to bypass the Ontario Labour Relations Board by filing a civil lawsuit for employer intimidation during a union drive; courts consistently rule that the OLRB holds exclusive jurisdiction to resolve these labour relations disputes.
- If evaluating how to respond to an employer suddenly altering shifts or pay during a union vote, engaging external labour counsel can help strategically leverage an unfair labour practice complaint to protect the workforce entirely.
- File complaints as soon as the contentious incident occurs; the OLRB routinely dismisses applications where the filing party waited too long to see how negotiations would play out before claiming a violation.
Featured Cases
United Food and Commercial Workers International Union v. Aurora Cannabis Enterprises Inc.
2021 ONSC 5611 (CanLII) · 2021-08-19Judicial Review: AEPA Unfair Labour Practices
This is a judicial review of a labour tribunal's decision concerning unfair labour practices and employer obligations under the Agricultural Employees Protection Act, 2002. The Divisional Court applied the reasonableness standard for statutory interpretation and the correctness standard for constitutional issues.
M. v. T.
2018 ONSC 2935 (CanLII) · 2018-05-09Judicial Review: Duty of Fair Representation Dismissed
This judicial review concerns the Ontario Labour Relations Board's dismissal of applications alleging a breach of the duty of fair representation and an unfair labour practice under the Colleges Collective Bargaining Act. The Divisional Court upheld the Board's decisions, finding that procedural fairness was adequately provided and that the Board's discretion to dismiss the applications was reasonable given the lack of actual prejudice to the employment relationship.
FCI Concrete Forming Inc. v. Buttcon Limited
2018 ONCA 268 (CanLII) · 2018-03-19Labour Relations Board Exclusive Jurisdiction Appeal
This is an appeal to the Court of Appeal from a motion judge's decision staying a civil action. The plaintiff employers sued a union and a contractor for conspiracy to injure. The motion judge stayed the action, finding that the essence of the dispute was an alleged unfair labour practice over which the Labour Relations Board had exclusive jurisdiction. The Court of Appeal dismissed the appeal, agreeing that the statement of claim's allegations, such as an improper union grievance, were labour relations matters for the Board to determine. The stay of the civil action stands.
G. v. Ontario Labour Relations Board
2018 ONSC 1760 (CanLII) · 2018-03-14Judicial Review: OLRB Decision Dismissed
The applicant sought judicial review of the Ontario Labour Relations Board's decisions regarding unfair labour practices, the union's duty of fair representation, and sexual harassment allegations. The Divisional Court dismissed the application, finding that the Board's decisions on procedural fairness, the validity of a settlement substituting resignation for termination, and the rejection of reconsideration and abuse of process applications were reasonable.
FCI Concrete v Buttcon Limited
2017 ONSC 3326 (CanLII) · 2017-05-29Labour Relations: OLRB Exclusive Jurisdiction Ruling
This is a jurisdictional ruling determining whether tort claims for conspiracy and inducing breach of contract fell under the exclusive jurisdiction of the Ontario Labour Relations Board. The court applied the 'essential character' test, finding that the alleged conduct, which involved using grievance procedures to coerce a corporation into signing a collective agreement, constituted an unfair labour practice under the Labour Relations Act, 1995.
Romspen Investment Corporation v. Courtice Auto Wreckers Limited
2017 ONCA 301 (CanLII) · 2017-04-13Bankruptcy Stay vs. Union Certification Appeal
This is an appeal regarding the intersection of federal bankruptcy law and provincial labour law, specifically whether a stay of proceedings under a receivership order should be lifted to allow a union to proceed with a certification application and unfair labour practice complaint. The court balanced the prejudice to creditors against the employees' statutory labour rights under the Labour Relations Act, 1995.
Romspen Investment Corporation v Courtice Auto Wreckers
2016 ONSC 1808 (CanLII) · 2016-04-13Lifting Stay in Receivership for Union Certification
This is a procedural ruling concerning whether a stay of proceedings in a receivership should be lifted to allow a union to proceed with a certification application and unfair labour practice complaint. The court considered the principles governing lifting stays under the Bankruptcy and Insolvency Act, the balance between creditors' and employees' interests, and the exclusive jurisdiction of the Ontario Labour Relations Board.
Milk and Bread Drivers et al. v. Gate Gourmet Canada Inc. et al.
2014 ONSC 4139 (CanLII) · 2014-07-24Judicial Review: Statutory Freeze & Unfair Labour Practice
This is a judicial review of an Ontario Labour Relations Board decision that dismissed an unfair labour practice complaint. The Divisional Court reviewed whether the Board's interpretation of section 86 of the Labour Relations Act, 1995 regarding the statutory freeze was reasonable, specifically addressing whether an employer's substitution of a benefits plan during the certification period violated the freeze.
W. v. Ontario Labour Relations Board
2013 ONSC 847 (CanLII) · 2013-03-05Judicial Review: OLRB Decision on Anti-Union Termination
This is a judicial review of an Ontario Labour Relations Board decision regarding the termination of an NHL referee. The applicant alleged the termination was motivated by anti-union animus, raising issues regarding the Board's application of the standard of review, treatment of circumstantial evidence, and procedural fairness.
D. v. McDonnell-Ronald Limousine Service Ltd.
1999 CanLII 9305 (ON CA) · 1999-11-05OLRB Exclusive Jurisdiction: Collective Agreement Disputes
This is a procedural jurisdictional ruling determining whether the Ontario Labour Relations Board (OLRB) or the Superior Court has authority over disputes involving alleged unfair labour practices and breaches of a collective agreement. The court affirmed that the OLRB retains exclusive jurisdiction over such matters, even after the expiry of a collective agreement, provided the dispute arises in the context of labour relations.
Cadillac Fairview Corp. Ltd. v. R.W.D.S.U. (C.A.)
1989 CanLII 4334 (ON CA) · 1989-12-20Union Access vs Property Rights: LRB Judicial Review
This is a judicial review of an Ontario Labour Relations Board decision regarding union access to a shopping centre and alleged employer interference with employees' statutory rights. The Court of Appeal reviewed the Board's jurisdiction to balance property rights against union access, its finding that the shopping centre management acted on behalf of the employer, and whether the decision was patently unreasonable.
Re Tandy Electronics Ltd. and United Steelworkers of America et al.
1980 CanLII 1738 (ON SC) · 1980-02-29Judicial Review: Labour Board Remedies for Unfair Practices
This is a judicial review application concerning a Labour Relations Board's order against an employer for unfair labour practices, including undermining the union and bad-faith bargaining. The court examined whether the Board exceeded its jurisdiction by imposing remedies and relying on prior panel decisions to assess anti-union animus under the Labour Relations Act.
Re Tandy Electronics Ltd. and United Steel Workers of America et al.
1979 CanLII 1914 (ON SC) · 1979-08-08Union Certification: OLRB Jurisdiction and Natural Justice
This is a judicial review proceeding concerning the Ontario Labour Relations Board's certification of the United Steel Workers of America at Tandy Electronics Ltd. The court examined whether the Board acted within its jurisdiction under section 7a of the Labour Relations Act by certifying the union without a vote, and whether procedural fairness was denied by refusing cross-examination of a union organizer.
Re M. et al. and Dylex Ltd. et al.
1977 CanLII 1157 (ON SC) · 1977-10-25Union Certification: Judicial Review of Labour Relations Board Decision
A judicial review case concerning the Labour Relations Board's certification of a union without a vote under section 7a of the Labour Relations Act. The dispute centers on whether the Board has exclusive jurisdiction to certify a union despite a majority of employees voting against it, and whether the Board's decision was within its jurisdiction.
Regina v. Bushnell Communications Ltd. et al.
1973 CanLII 475 (ON SC) · 1973-10-17Union Membership and Termination: Canada Labour Code Section 110(3) Interpretation
A case involving the termination of an employee allegedly due to union membership, addressing whether union membership must be the principal reason for dismissal to constitute an offence under section 110(3) of the Canada Labour Code. The trial judge dismissed the charge due to insufficient proof of union membership as the principal reason for termination, and the case examines whether the trial judge applied the correct standard of proof.