What is a fiduciary?
A fiduciary is a person or entity that must act in another's best interest, with loyalty and care, rather than their own.
A fiduciary is someone legally bound to act in another’s best interest.
Where the word "Fiduciary" comes from
Fiduciary comes from the Latin fiducia, trust or confidence. The law imposes fiduciary duties on trustees, executors, agents, guardians, and others who manage property for someone else, holding them to the highest standard of conduct.
Why Fiduciary matters
It protects people who entrust their money, health, or property to another. When a fiduciary breaches the duty, courts can remove them, award damages, and even impose penalties, which is what makes the role meaningful.
Common confusion about Fiduciary
Not every professional adviser is a fiduciary. A salesperson selling a product may owe no fiduciary duty, while a trustee or guardian always does, so the label matters legally and practically, and assuming someone is a fiduciary when they are not can be costly.
A real-world example of Fiduciary
An agent under a power of attorney manages an elderly parent's accounts. The agent must pay the parent's bills and act only for the parent's benefit; using the funds for the agent's own use is a breach of fiduciary duty.
A worked example of Fiduciary
A guardian for a disabled adult's finances invests the ward's savings in the guardian's own business. That self-dealing is a flagrant breach, and the court can remove the guardian, order repayment with interest, and refer the matter for criminal charges. Even honest mistakes that lose money can create liability if the fiduciary failed to act prudently, which is why fiduciaries document their decisions and avoid conflicts.
How Fiduciary works in practice
If you are a fiduciary, keep scrupulous records, avoid self-dealing, and invest conservatively, because the standard is strict. If you are choosing a fiduciary, select someone trustworthy, spell out their powers in writing, and review their actions. If you suspect a breach, gather documents and consult counsel, because the remedies, including removal and surcharge, are real. Fiduciary duties apply across many roles, from trustee and executor to agent under a power of attorney, and the same high standard governs each, so understand what role you are taking on before you accept it.
Questions about Fiduciary
Who is a fiduciary?
Trustees, executors, guardians, and some agents under a POA.
What happens if they breach?
They can be removed and forced to repay losses.
Is my financial advisor a fiduciary?
Not always — it depends on their legal duty.