Fiduciary means a person or firm bound by law to act in someone else’s best interest, ahead of their own. Trustees, executors, and corporate directors are fiduciaries. So are investment advisers, and that’s where the word matters most for your money.
Ask five financial advisors whether they’re fiduciaries and you may hear five yeses from people working under different rules. A registered investment adviser owes you a fiduciary duty across the whole relationship. A broker owes you “best interest” care at the moment of a recommendation.
What Does Fiduciary Mean?
Fiduciary describes a relationship built on trust, where one party manages money or decisions for another. Merriam-Webster defines the adjective as “of, relating to, or involving a confidence or trust.” The noun means a person who acts in that role.
The word works as both parts of speech:
- As a noun: “My financial advisor is a fiduciary.”
- As an adjective: “My financial advisor has a fiduciary duty to me.”
It’s pronounced fih-DOO-shee-air-ee and spelled f-i-d-u-c-i-a-r-y. Common misspellings include “feduciary” and “fidiciary.”
Where Does the Word Fiduciary Come From?
Fiduciary comes from the Latin fiduciarius, “holding in trust,” which traces back through fiducia, “trust or confidence,” to fidere, “to trust.” English used the noun by 1631 and the adjective by about 1641, according to Merriam-Webster and Etymonline.
What Is Fiduciary Duty?
Fiduciary duty is the legal obligation to act in another person’s best interest. For investment advisers, it has two parts: a duty of care and a duty of loyalty. The SEC laid that out in its 2019 interpretation of the adviser standard, which covers the entire relationship.
- Duty of care. The adviser has to give advice that fits your goals, seek the best execution on trades, and monitor your account as agreed.
- Duty of loyalty. The adviser can’t put its interests ahead of yours. It has to eliminate conflicts of interest or disclose them in full so you can consent.
Cornell Law School’s Legal Information Institute says a fiduciary must act in the other person’s best interest “and not for their own personal gain.” In agency law, it adds, fiduciaries owe their principals duties of obedience, loyalty, and care.
Who Is a Fiduciary?
A fiduciary is anyone who holds money, property, or decisions in trust for someone else. The duty comes from the role, so the same person can be a fiduciary in one relationship and not in another.
| Fiduciary | Who they serve | Where the duty comes from |
|---|---|---|
| Registered investment adviser | Advisory clients | Investment Advisers Act and SEC rules |
| CFP® professional giving financial advice | Clients | CFP Board standards |
| Trustee | Trust beneficiaries | State trust law and the trust document |
| Executor or personal representative | An estate’s heirs and creditors | State probate law |
| Agent under a power of attorney | The person who signed the document | State law and the document |
| 401(k) plan fiduciary | Plan participants | ERISA |
| Corporate director | The company and its shareholders | State corporate law |
A trustee is one of the most common fiduciaries, and naming one is part of an estate plan. Banks, trust companies, and attorneys often serve in these roles too.
Is Every Financial Advisor a Fiduciary?
Not every financial advisor is a fiduciary. FINRA notes that “financial advisor” is a generic title anyone can use. The duty depends on how the person is registered and what role they’re playing.
| Standard | Who follows it | When it applies |
|---|---|---|
| Fiduciary duty (Advisers Act) | Registered investment advisers | The entire advisory relationship |
| Best interest (Reg BI) | Broker-dealers | At the time of each recommendation |
| CFP Board fiduciary duty | CFP® professionals | Whenever they give financial advice to a client |
Source: SEC IA-5248 and Regulation Best Interest releases (2019); CFP Board Code and Standards.
Registered investment advisers and their representatives owe the fiduciary duty described above. Brokers work under Regulation Best Interest, which firms had to follow starting June 30, 2020. The SEC calls Reg BI distinct from the adviser fiduciary duty, since it applies at the time of a recommendation.
CFP® professionals carry their own duty. The CFP Board’s standards require them to act as fiduciaries whenever they give a client financial advice. The board began enforcing that rule on June 30, 2020.
State licensing for investment adviser representatives calls for the Series 65 or Series 66 exam in most cases. FINRA administers both for the North American Securities Administrators Association. Most states waive the Series 65 for holders of the CFP®, ChFC®, CFA, PFS, or CIMA designation.
How Can You Tell If an Advisor Is a Fiduciary?
You can tell if an advisor is a fiduciary by reading the firm’s Form CRS, checking the advisor’s registration, and asking in writing. A Form CRS is a short relationship summary that advisers and brokers must give you. It states the standard of conduct the firm follows.
- Read the Form CRS. Advisers must state that they act in your best interest as your investment adviser. Brokers must say the same about each recommendation.
- Look up the person on the SEC’s Investment Adviser Public Disclosure site, FINRA’s BrokerCheck, and the CFP Board’s verification search.
- Ask whether they act as a fiduciary at all times and on every account, and get the answer in writing.
Large firms often wear both hats: Fidelity files separate Form CRS documents for its brokerage arm and its managed-account adviser.
Commission pay is the conflict to probe when finding a good financial advisor. Judy McNary of McNary Financial Planning in Broomfield, Colorado, puts it this way: “If the adviser is paid based on commission, ask how he or she manages and discloses this conflict with you.”
How Do Fiduciary Advisors Get Paid?
Fiduciary advisors get paid through flat fees, hourly rates, or a percentage of the assets they manage, and some also earn disclosed commissions. Fee-only advisors take no commissions, which removes the largest conflict. Fee-based advisors can charge fees and also earn commissions on products they sell.
Fiduciary advice still has a price. At a typical 1% fee, an advisor managing $500,000 charges about $5,000 a year.
Boldin Advisors are fee-only fiduciaries and CFP® professionals who charge flat fees. A one-time Retirement Plan Checkup costs $3,200, and ongoing advisory begins at $1,200 a year. Every engagement opens with a free discovery session. Advisors work from your Boldin Planner data, so the meeting covers your own numbers.
What Happened to the DOL Fiduciary Rule?
The Department of Labor’s 2024 fiduciary rule didn’t take effect. Called the Retirement Security Rule, it would have made more people giving one-time advice on retirement accounts, such as a 401(k) rollover, into fiduciaries.
Federal courts in Texas stayed the rule in July 2024 and entered final judgments vacating it in March 2026. The DOL removed it in a Federal Register notice effective April 20, 2026. The older five-part test from 1975 still decides when retirement advice makes someone a fiduciary under ERISA.
If you’re rolling money out of a workplace plan, that history matters. Ask the person recommending the rollover which standard covers that advice before you sign.
Fiduciary Meaning FAQ
What is a fiduciary in simple terms?
A fiduciary, in simple terms, is someone trusted with another person’s money or interests and required by law to put them first. Trustees, executors, guardians, and investment advisers all fill that role. They have to avoid self-dealing and tell you about any conflict that could color their advice.
What is the difference between a fiduciary and a financial advisor?
A fiduciary is a legal role, while “financial advisor” is a job title with no single legal meaning. Some financial advisors are fiduciaries on everything they recommend. Others work as brokers under a best-interest standard that applies only when they make a recommendation. The title alone doesn’t tell you which duty you’re getting.
Is a CFP® professional a fiduciary?
A CFP® professional owes clients a fiduciary duty that covers loyalty, care, and following client instructions. The duty comes with the CFP® mark, so it lapses if the certification does. Before you hire, use the CFP Board’s verification search to confirm it’s active.
What is a breach of fiduciary duty?
A breach of fiduciary duty happens when a fiduciary acts against the interests of the person they serve. Common examples include self-dealing, hiding a conflict of interest, and careless management of someone’s money. The person harmed can often sue, and a court can order the fiduciary to repay losses or give up profits.
Does a fiduciary have to be a fee-only advisor?
A fiduciary doesn’t have to be a fee-only advisor, since registration and the advisory relationship create the duty. Many fee-based advisors also earn commissions and still owe a fiduciary duty on their advisory accounts. Fee-only pay removes commission conflicts, which is why many people looking for unconflicted advice start there.
Is Fidelity a fiduciary?
Fidelity is a fiduciary in some roles and not others. Its brokerage arm, Fidelity Brokerage Services, follows Regulation Best Interest and must act in your best interest when it makes a recommendation. Its managed-account adviser, Strategic Advisers, owes the investment adviser standard for the whole relationship. Which duty applies depends on the account.
