Breach of Fiduciary Duty: What It Means and How to Protect Your Interests

Breach of Fiduciary Duty

When people or organizations place their trust in someone to act on their behalf, the law imposes a special standard of conduct known as a fiduciary duty. This duty requires one party to act with loyalty, honesty, and good faith in the best interests of another. When that trust is violated, the result can be a breach of fiduciary duty—a serious legal issue that often leads to financial loss, reputational harm, and complex litigation. Understanding what constitutes a fiduciary duty, how breaches occur, and what remedies are available is essential for anyone involved in business, corporate governance, or professional relationships where trust plays a central role.


What Is a Fiduciary Duty?

A fiduciary duty arises when one person or entity agrees, either expressly or by implication, to act for the benefit of another in matters of trust and confidence. The fiduciary assumes an obligation to act with integrity, diligence, and complete loyalty. This relationship is built on a foundation of confidence, where one party relies on the other’s advice, judgment, or expertise.

Fiduciary duties are common in both business and personal contexts. They can arise between partners in a business partnership, corporate directors and officers in relation to their shareholders, trustees managing assets on behalf of beneficiaries, lawyers representing clients, or financial advisors managing investments. In each case, the fiduciary holds a position of influence or authority that carries with it a legal responsibility to place the beneficiary’s interests ahead of their own.


Types of Fiduciary Duties

Although the specific obligations may vary depending on the nature of the relationship, Canadian courts generally recognize several core duties that make up the fiduciary standard.

The duty of loyalty is at the heart of every fiduciary relationship. It requires the fiduciary to act solely in the interests of the beneficiary and to avoid situations where personal interests conflict with their duties. Even the appearance of self-dealing or undisclosed conflicts can amount to a breach.

The duty of care obliges the fiduciary to exercise the same prudence, diligence, and judgment that a reasonably competent person would apply under similar circumstances. This means making informed decisions, seeking appropriate advice, and taking steps to protect the beneficiary’s interests.

The duty of good faith and honesty requires the fiduciary to act truthfully and transparently. Concealing material information or misleading the beneficiary can constitute a breach of this duty.

In addition, the duty of full disclosure requires that the fiduciary provide the beneficiary with all relevant information that could affect their interests or decisions. Similarly, the duty of confidentiality prevents the fiduciary from using private or sensitive information for personal advantage or disclosing it without proper authorization.


What Constitutes a Breach of Fiduciary Duty?

A breach of fiduciary duty occurs when the fiduciary acts in a way that undermines the trust placed in them. This can happen through deliberate misconduct, negligence, or even inaction. Common examples include diverting business opportunities for personal benefit, misappropriating funds, failing to disclose conflicts of interest, or otherwise placing personal gain above the beneficiary’s welfare.

To establish a breach of fiduciary duty, a claimant must generally prove three elements. First, that a fiduciary relationship existed. Second, that the fiduciary breached one or more of their obligations, such as loyalty or care. And third, that the breach caused actual harm or loss to the beneficiary. These cases are highly fact-driven, and the evidence often depends on detailed records, communications, and the surrounding circumstances.


Legal Remedies for Breach of Fiduciary Duty

When a fiduciary fails to uphold their obligations, the injured party may seek remedies through the courts. The appropriate remedy depends on the nature of the breach and the resulting harm.

In many cases, the primary goal is to restore the injured party to the position they would have been in had the breach not occurred. This may involve compensatory damages for direct financial loss. Courts may also order disgorgement of profits, requiring the fiduciary to return any gains obtained through the breach. In situations where property or assets have been wrongfully acquired, a constructive trust may be imposed, transferring those assets back to the rightful beneficiary.

In some circumstances, the court may set aside or rescind contracts that were entered into under conditions of undue influence or conflict of interest. Where the conduct has been particularly egregious—such as involving fraud, malice, or deceit—punitive damages may also be awarded to deter similar behaviour in the future. Equitable remedies, including injunctions or the removal of a fiduciary from their position, may be available to prevent further harm.


Defences to a Breach of Fiduciary Duty Claim

Not every unfavourable decision or error amounts to a breach. Fiduciaries may defend themselves by showing that they acted in good faith, with full disclosure, and within the scope of their authority. A common defence is that no fiduciary relationship existed in the first place, particularly in commercial dealings between parties of equal bargaining power. Another possible defence is informed consent, where the beneficiary knew of the potential conflict and expressly approved the fiduciary’s actions. A fiduciary may also argue that, even if a breach occurred, no actual damages resulted.

Canadian courts recognize that fiduciary law is not intended to punish mere mistakes in judgment but to address conduct that involves a failure of loyalty, honesty, or care. The focus is therefore on whether the fiduciary’s conduct fell below the standard expected of someone in their position.


Breach of Fiduciary Duty in Business and Corporate Contexts

Many fiduciary duty claims arise in business and corporate settings. In partnerships, disputes often occur when one partner uses business assets for personal purposes, conceals information, or diverts opportunities that rightfully belong to the partnership. In the corporate context, directors and officers owe fiduciary duties to the corporation and its shareholders. Breaches may involve self-dealing, insider trading, misuse of corporate property, or decisions made for personal advantage rather than the company’s best interests.

Corporate fiduciary cases often overlap with other causes of action, such as oppression remedies under corporate legislation, breach of contract, or civil fraud. These matters can be particularly complex because they involve overlapping duties, competing interests, and detailed financial records. Courts in Canada take these cases seriously, as fiduciary principles are essential to maintaining confidence in the fairness and integrity of business relationships.


How Courts Assess a Breach of Fiduciary Duty

Courts approach fiduciary disputes by examining the nature of the relationship and the conduct in question. The key question is whether the fiduciary placed themselves in a position where their personal interests conflicted with their duties, or whether they acted contrary to the beneficiary’s interests. Intent is often relevant but not always necessary; even unintentional breaches can lead to liability if the fiduciary failed to act with sufficient care or transparency.

Evidence plays a central role in these cases. Financial records, correspondence, board minutes, and witness testimony can all help establish whether the fiduciary acted improperly. Courts will also consider whether the fiduciary sought independent advice, disclosed potential conflicts, and acted consistently with their obligations. The analysis is context-specific, and each case turns on its own facts.


Preventing Fiduciary Disputes

Fiduciary disputes are often preventable through careful planning and open communication. Clear written agreements that define roles, responsibilities, and decision-making authority can reduce uncertainty. Maintaining transparent records and regular reporting helps build accountability and trust. Fiduciaries should disclose any potential conflicts of interest as soon as they arise and seek consent before taking action that could affect the beneficiary’s interests. Beneficiaries, for their part, should stay informed and actively monitor the fiduciary’s performance rather than relying entirely on trust.

In professional or corporate settings, obtaining independent legal or financial advice can also help prevent misunderstandings that might later lead to litigation. By prioritizing transparency and ethical conduct, parties can protect themselves and preserve the integrity of their relationships.


Key Takeaways

A fiduciary duty represents one of the highest standards of care recognized by law. When breached, the consequences can be significant, both financially and reputationally. Whether in business partnerships, corporate governance, or trust administration, fiduciaries must act with unwavering loyalty, diligence, and honesty toward those who rely on them. Understanding these obligations—and ensuring they are respected—helps maintain confidence in professional and commercial relationships.

If you believe a fiduciary relationship has been breached or you are facing allegations of doing so, it is essential to obtain sound legal advice. Addressing the issue early can help protect your interests, preserve evidence, and guide you toward an appropriate resolution.

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