Topic Terms

What is a Fiduciary

A fiduciary is a person or institution legally and ethically obligated to act in another party's best interest — a critical distinction when choosing a financial advisor, as not all advisors are held to this standard.

A fiduciary is a person or entity that is legally and ethically required to act in the best interest of another party — placing that party's needs above their own. In finance, this typically refers to financial advisors, investment managers, attorneys, and trustees who have a formal duty of loyalty and care toward their clients.

The word comes from the Latin fiducia, meaning "trust."

Why the Fiduciary Standard Matters

Not all financial professionals are fiduciaries. Many operate under a lower standard called the suitability standard — which only requires that a recommendation be "suitable" for a client, not necessarily the best or lowest-cost option. This distinction is significant because a non-fiduciary advisor may legally recommend a product that earns them a higher commission even if a comparable lower-cost option would better serve the client.

Standard Requirement Who It Applies To
Fiduciary Must act in client's best interest; disclose conflicts Registered Investment Advisors (RIAs)
Suitability Recommendation must be suitable (not necessarily best) Broker-dealers, insurance agents (traditionally)

In 2020, the SEC introduced Regulation Best Interest (Reg BI), which requires broker-dealers to act in clients' best interest — but critics argue it still falls short of a true fiduciary standard.

Types of Fiduciaries in Finance

  • Registered Investment Advisors (RIAs): Regulated by the SEC or state authorities; legally required to act as fiduciaries
  • Certified Financial Planners (CFPs): Must adhere to fiduciary duty when providing financial planning (since 2019)
  • ERISA fiduciaries: Administrators and investment managers of employer retirement plans (like 401(k) plans) are fiduciaries under federal law
  • Trustees: Anyone managing assets in a trust has a fiduciary duty to the trust's beneficiaries (relevant to estate planning, living wills, and power of attorney)

Fee-Only vs. Fee-Based Advisors

A fee-only financial advisor is compensated solely by client fees — not by commissions on products they sell. This compensation structure eliminates most financial conflicts of interest. Fee-only advisors are almost always fiduciaries.

A fee-based advisor charges fees but also earns commissions on certain products. This can create conflicts of interest even if the advisor technically holds fiduciary status.

When searching for a financial advisor, asking "Are you a fiduciary at all times?" and "How are you compensated?" are two of the most important questions you can ask.

Finding a Fiduciary Advisor

The NAPFA (National Association of Personal Financial Advisors) is a professional organization of fee-only fiduciary advisors. Their advisor search allows you to find vetted, fee-only planners by location. SmartAsset also offers a free matching tool to connect consumers with local fiduciary advisors.

Fiduciary Duty Beyond Finance

The fiduciary concept extends beyond financial advisors:

  • Attorneys have a fiduciary duty to their clients
  • Corporate directors have fiduciary duties to shareholders
  • Guardians and conservators have fiduciary duties to those under their care
  • Executors of estates are fiduciaries of the deceased's beneficiaries

Protecting Yourself

If you're working with any financial professional, clarifying their fiduciary status in writing is a reasonable precaution. A power of attorney document — naming a trusted fiduciary to manage your finances if you're incapacitated — is also an important legal tool to have in place, particularly as part of comprehensive estate planning.