A fiduciary is someone legally required to put your interests ahead of their own. The obligation is not just to avoid harming you. It requires actively pursuing what is best for you, even when that conflicts with their own financial gain. Trustees, registered investment advisers, attorneys, executors, and corporate directors all carry fiduciary duties by law. The moment someone accepts a fiduciary role, your interest becomes the only interest that counts.
Every fiduciary relationship rests on two foundational obligations. Both must be satisfied, not just one.
For decades, broker-dealers operated under a suitability standard rather than a fiduciary one. A suitable recommendation needed only to match your profile. Your broker could recommend a higher-commission product over an identical cheaper alternative and still comply.
FINRA's Regulation Best Interest, effective June 30, 2020, raised the bar for broker-dealers but stopped short of full fiduciary status. Registered investment advisers still face the stricter fiduciary standard under the Investment Advisers Act of 1940. That distinction matters most when you are choosing between a fee-only adviser and one who earns commissions.
You encounter fiduciary relationships more often than you might expect. Here are the most common in financial contexts.
A breach of fiduciary duty opens the door to civil liability. Courts can require disgorgement of profits earned through the breach, award compensatory damages, and add punitive damages when fraud or willful misconduct is involved.
ERISA fiduciaries carry the most direct personal exposure. A plan administrator who causes losses through imprudent investment choices can be personally required to restore those losses out of their own pocket, regardless of whether they are still employed.