A fiduciary financial advisor is legally required to act in your best interest and not put their own interests ahead of yours. Registered investment advisers owe this duty for the whole advisory relationship under the Investment Advisers Act. Brokers follow a related but different rule, Regulation Best Interest, which applies when they make a recommendation.
You are interviewing advisors and every one of them says they "put clients first." That phrase is not a legal standard. What protects you is the specific duty the person owes, when it applies, and how they get paid. Those details are written down in documents you can read before you sign anything.
What does "fiduciary" mean for an investment adviser?
It means a legal duty of loyalty and care to you, not just a promise. According to Investor.gov, "investment advisers are required to act in your best interest and not put their interest ahead of yours."
In its June 2019 rulemaking package, the SEC described this as a federal fiduciary duty that is "principles-based and applies to the entire relationship between an investment adviser and its client." In practice that has two parts:
Duty of care
The adviser has to understand your situation and goals, give advice that fits them, and keep monitoring if that is part of the agreement.
Duty of loyalty
The adviser cannot put their own interests ahead of yours, and has to tell you about conflicts of interest so you can give informed consent.
A fiduciary duty does not mean the adviser has no conflicts. Investor.gov is direct about this: the way advisers make money "creates some conflicts with your interests." The duty requires them to disclose and manage those conflicts, not pretend they do not exist.
Is a broker a fiduciary?
Usually not in the same sense, but brokers do have a best-interest obligation. Since June 30, 2020, broker-dealers have had to comply with Regulation Best Interest (Reg BI). The SEC says a broker "must act in the retail customer's best interest and cannot place its own interests ahead of the customer's interests" when making a recommendation.
The key difference is timing and scope.
| Investment adviser | Broker-dealer | |
|---|---|---|
| Standard | Fiduciary duty under the Advisers Act | Regulation Best Interest |
| When it applies | The whole relationship | At the time of each recommendation (plus agreed monitoring) |
| Typical pay | Ongoing fee, often a percentage of assets | Commission or markup per transaction |
| Main disclosure documents | Form CRS, Form ADV Part 2 brochure | Form CRS, Reg BI disclosures |
Reg BI has four components: disclosure, care, conflict of interest and compliance. It also covers recommendations to roll a workplace retirement plan into an IRA, which is one of the biggest decisions many people make with a professional.
Can one person be both?
Yes, and it is common. Many firms are "dual registrants" that offer both brokerage and advisory accounts. Investor.gov advises that if your professional offers both, "make sure you understand when they are acting as a broker and when they are acting as an adviser." The same person can be held to the fiduciary standard in your advisory account and to Reg BI in your brokerage account.
The simplest way to find out is to ask, in writing: "In which accounts and for which recommendations are you acting as a fiduciary?"
How do you check whether your advisor is a fiduciary?
Read the documents rather than relying on the pitch. Four steps:
- Get the Form CRS. Every SEC-registered broker and adviser must give retail investors this short relationship summary. It states the services, fees, conflicts and the standard of conduct the firm follows. You can pull it from Investor.gov/CRS.
- Look up the firm and the person. Use the Investment Adviser Public Disclosure site and FINRA BrokerCheck to confirm registration and see any disciplinary history.
- Read Form ADV Part 2. The brochure explains how the adviser is paid and where conflicts arise, for example if they earn more on certain products.
- Ask how they are paid, in dollars. Investor.gov notes that if a fee is quoted as a percentage, you should understand "what that translates to in dollars."
Our guide on how to choose a financial advisor walks through the full interview process, including questions to ask.
Does "fiduciary" mean the advice will be good?
No. A fiduciary duty sets a legal standard of conduct. It does not guarantee results, and a fiduciary can still recommend investments that lose money. It also does not make every fee reasonable: a 1% annual advisory fee on $500,000 is $5,000 a year whether markets rise or fall.
What the standard gives you is a basis for holding the adviser accountable and a right to clear disclosure. You still have to read it. For investments outside public markets, such as a private placement, ask the adviser to explain the risks, the lockup and how they are compensated on that specific product.
Red flags around the word "fiduciary"
Watch for these patterns:
- "Fiduciary" used as a marketing word with no explanation of which accounts it covers.
- Titles and initials that sound official but describe a sales license for a single product type. Investor.gov warns that some initials "may mean that the adviser or broker can only sell certain products."
- Reluctance to give you Form CRS or Form ADV, or to explain fees in dollars.
- Pressure to roll over a 401(k) without a written comparison of costs.
- Guaranteed or unusually steady returns, which are a common sign of investment fraud.
Frequently asked questions
Are all financial advisors fiduciaries?
No. "Financial advisor" is a general title, not a license. Registered investment advisers owe a fiduciary duty, brokers follow Regulation Best Interest, and some people who use the title only sell insurance products under different rules.
Is a fee-only advisor always a fiduciary?
A fee-only adviser who is a registered investment adviser owes a fiduciary duty for advisory services. Fee-only describes how they are paid; registration is what creates the legal duty, so check both.
Where do I complain if an advisor did not act in my best interest?
You can submit a complaint to the SEC through its investor complaint form, call its help line at 1-800-732-0330, or contact FINRA if the person is a broker. Keep copies of your statements and any written recommendations.
Does Regulation Best Interest apply to IRA rollovers?
Yes. The SEC states that Reg BI applies to account recommendations, including recommendations to roll over or transfer assets from a workplace retirement plan to an IRA.
Related: How to choose a financial advisor · What is an index fund and how does it work? · How to spot investment fraud