The Duty of Honest Performance in Ontario Civil Litigation: Implications for 2026 and Beyond

In Ontario’s evolving litigation landscape, the duty of honest performance stands as one of the most consequential legal doctrines of the last decade. Originating from the Supreme Court’s decision in Bhasin v. Hrynew (2014) and refined through Callow v. Zollinger (2020) and Wastech Services Ltd. v. Greater Vancouver Sewerage and Drainage District (2021), this principle reshaped the fabric of contractual relations across Canada.

No longer confined to the moral realm, honesty has become an actionable legal duty—one that can transform commercial breaches into bad-faith litigation, reopen terminated contracts, and alter the risk calculus in business, real estate, and estate administration.

At ME Law, we have seen a marked increase in cases where the alleged failure to act honestly or transparently—whether through silence, timing, or manipulation of discretion—forms the crux of a lawsuit. This white paper explores how the duty of honest performance now permeates Ontario’s civil and commercial litigation. We analyze its doctrinal foundations, its expanding application in key practice areas, and the strategic implications for litigants in 2026 and beyond.

Introduction: The Rise of the Good Faith Doctrine

Contracts are built on promises, but until recently, Canadian law drew a strict line between enforceable obligations and ethical expectations. Bhasin v. Hrynew changed that balance. The Supreme Court recognized an “organizing principle of good faith” and a “duty of honest performance” requiring parties not to lie or knowingly mislead each other about matters directly linked to their contract’s performance.

This development injected moral content into commercial law. The effect was immediate: litigators began reframing traditional breach-of-contract claims as breaches of good faith, expanding both liability and available remedies. The doctrine’s influence now extends well beyond contract law—it informs fiduciary claims, shareholder disputes, and even estate litigation involving fiduciary administration.

For Ontario litigants, honesty is no longer optional—it is a litigable standard of conduct.

The Bhasin Trilogy: From Principle to Practice

Bhasin v. Hrynew (2014 SCC 71)

The Court recognized that parties to a contract must perform their obligations honestly, not misleading each other about performance. This duty applies to all contracts, regardless of their wording or sophistication. It cannot be excluded by an “entire agreement” clause and operates in addition to express terms.

Callow v. Zollinger (2020 SCC 45)

The doctrine evolved. The Court held that silence can amount to dishonesty when a party’s conduct knowingly misleads the other into believing a false state of affairs. In Callow, condominium corporations failed to disclose their intention to terminate a winter maintenance contract, allowing the contractor to perform unpaid preparatory work. The Court found this violated the duty of honest performance.

Wastech v. Metro Vancouver (2021 SCC 7)

The Supreme Court clarified that the duty of good faith also governs the exercise of contractual discretion. Parties must exercise discretion reasonably and in line with the contract’s purpose. Abuse of discretion—such as manipulating a cost allocation clause—can give rise to liability even absent deceit.

Together, these cases transformed honesty from an ethical expectation into a civil obligation. Ontario courts now apply the doctrine routinely in commercial, real estate, and estate litigation contexts.

The Expanding Frontiers of Honest Performance in Ontario Litigation

A. Commercial and Contractual Litigation

In 2026, Ontario commercial litigators are deploying Bhasin and its progeny as both sword and shield.

• Plaintiffs invoke honest performance to transform a breach-of-contract claim into a bad-faith claim, increasing potential damages and reputational exposure.
• Defendants rely on the doctrine to argue that counterparties acted opportunistically or withheld critical information, undermining their credibility and mitigation claims.

Typical scenarios include franchise terminations, supplier delisting, partnership exits, and loan enforcement disputes where one side concealed an intention inconsistent with ongoing performance. Courts have shown little tolerance for tactical silence or half-truths.

B. Real Estate and Development Disputes

Real estate litigation has absorbed the doctrine rapidly. When vendors, builders, or agents engage in selective disclosure or pretextual termination, the duty of honest performance becomes a decisive factor.

• Purchasers misled about completion timelines or zoning risks may frame claims not merely as contractual breaches but as breaches of honesty, supporting requests for rescission or punitive damages.
• Developers who cancel projects citing “market conditions” while secretly negotiating side deals face scrutiny under Callow’s standard of misleading silence.

Judges increasingly interpret real estate dealings through the lens of relational honesty, emphasizing transparency and reliance.

C. Corporate and Shareholder Disputes

In shareholder and partnership contexts, the doctrine blends with fiduciary duties. Where shareholders, directors, or partners act dishonestly in exercising contractual rights—such as share redemptions, buy-outs, or management removals—courts combine Bhasin principles with oppression remedies under section 248 of the OBCA.

Ontario judges emphasize that corporate governance is not exempt from honesty. Misleading minority shareholders about corporate transactions can ground both oppression and breach-of-contract claims.

D. Estate Administration and Trusts

Executors, attorneys, and trustees owe fiduciary duties that overlap with honest performance. Increasingly, Ontario estate litigators invoke the doctrine to challenge conduct that, while not fraudulent, manipulates expectations—such as concealing intended dispositions or withholding financial information.
This integration of equitable principles and contractual honesty bridges the gap between moral expectation and legal accountability in estate disputes.

The Legal Framework: Honest Performance as a Litigation Standard

Ontario courts now view the duty of honest performance as:

1. Universal – Applies to all contracts regardless of type or size.
2. Non-excludable – Cannot be waived or limited by contract language.
3. Objective – Measured by whether a reasonable person would be misled.
4. Remedial – Breach supports damages, injunctions, and, in some cases, rescission or punitive awards.

Litigators increasingly use this framework to obtain interim remedies:

• Mareva injunctions to preserve assets where dishonesty suggests risk of dissipation.
• Norwich orders to trace funds or identify parties involved in deceptive conduct.
• CPLs to secure land interests in transactions tainted by misrepresentation.

This convergence of equitable and contractual relief underscores the doctrine’s potency.

Red Flags and Early Warning Signs

Clients often overlook early signs of dishonest performance until litigation becomes inevitable. Common indicators include:

• Sudden changes in tone or cooperation after months of performance.
• Repeated “assurances” without written follow-up.
• Concealment of key facts affecting contract viability.
• Ambiguous termination notices citing “business reasons.”
• Selective disclosure of financial or operational data.

Identifying these patterns early allows litigators to document evidence of misleading conduct and build the factual foundation for a Bhasin-based claim or defence.

Strategic Use of the Doctrine in Litigation

A. As a Cause of Action

Claimants can allege a distinct breach of the duty of honest performance alongside traditional breach-of-contract claims. This expands damages exposure and strengthens moral framing before the court.

B. As a Defence

Defendants facing performance allegations can argue that the plaintiff’s own dishonesty or bad-faith behavior vitiates reliance or undermines credibility, aligning with equitable maxims that one cannot profit from one’s own wrong.

C. In Interim Motions

Honest performance arguments bolster interlocutory applications for injunctions by establishing irreparable harm linked to deceptive conduct. Courts favour applicants who act transparently and in good faith.

D. In Settlement Strategy

Allegations of dishonesty influence mediation dynamics. Parties accused of bad faith often prefer early resolution to avoid reputational risk. Properly framed, Bhasin-based pleadings can accelerate settlement leverage.

Case Studies and Illustrations

• Commercial Example: A supplier terminates a long-term distribution agreement citing “inventory issues” while secretly onboarding a competitor. The court finds a breach of honest performance and awards damages for lost reliance and goodwill.
• Real Estate Example: A developer promises buyers project continuation while preparing to cancel and relist units at higher prices. Purchasers obtain rescission and compensation for deceptive conduct.
• Corporate Example: A majority shareholder uses a contractual buy-out clause to remove a minority partner after concealing an impending acquisition offer. The court deems it dishonest exercise of discretion and orders equitable buy-out at fair value.
• Estate Example: An executor delays disclosing a will’s true content to beneficiaries to influence negotiations. The court holds that fiduciary honesty includes transparency consistent with the Bhasin standard.

Practical Guidance for Clients

1. Document Communications – Maintain clear records of representations and decisions during performance.
2. Avoid Ambiguity – Silence can be actionable; disclose changes of intent promptly.
3. Train Staff and Agents – Ensure representatives understand their duty of candour in commercial dealings.
4. Engage Counsel Early – Honest performance issues often surface before formal breach; early legal review can prevent escalation.
5. Seek Remedies Swiftly – Courts reward timely, good-faith conduct and penalize delay.

The Role of Litigators

Litigators today are not merely courtroom advocates—they are architects of contractual integrity. At ME Law, our litigation team:

• Integrates Bhasin and Callow principles into pleadings and motions.
• Designs proactive disclosure strategies to demonstrate client good faith.
• Combines equitable remedies (injunctions, trusts) with contractual claims for comprehensive protection.
• Leverages honest performance to reshape negotiations and enforce fair dealing.

In an era where perception, transparency, and evidence intersect, litigation strategy depends as much on credibility as on law.

Future Outlook: The Next Phase of Honest Performance

By 2026, the doctrine will continue to expand through:

• Employment and Contractor Disputes: Employers and contractors face liability for misleading performance assurances.
• Real Estate Syndicates: Courts will apply Callow to investment partnerships and property co-ownership.
• Digital Contracts and AI Transactions: Automated systems executing contracts must comply with human expectations of honesty; litigation will test algorithmic intent.

The future of civil litigation lies not in more contracts, but in more transparent ones—drafted and executed under the guiding principle of good faith.

About ME Law

ME Law Professional Corporation is a Yorkville-based litigation boutique focused on complex civil, commercial, estate, and real estate disputes. Our firm is recognized for its strategic approach to asset protection, contract enforcement, and equitable remedies.

We combine rigorous advocacy with pragmatic strategy—integrating doctrines like honest performance into every phase of litigation to preserve value and uphold fairness. From emergency injunctions to appellate advocacy, ME Law delivers disciplined, client-centred results in Ontario’s most challenging disputes.

⚖️ Disclaimer
This article is provided for general information purposes only and does not constitute legal advice. You should not rely on the statements herein as a substitute for legal consultation specific to your circumstances. Every case is unique, and outcomes will vary depending on the facts and applicable law. Past results and case examples are not indicative of future success. If you require legal advice, please consult directly with a qualified lawyer.