What Is a Fiduciary Financial Advisor?

A fiduciary is legally required to act in the interest of another party. Simple concept. In practice, the investment version of this duty comes from the Investment Advisers Act of 1940, shaped by SEC interpretation and decades of court decisions. When a firm registers as an investment adviser, that registration attaches a legal obligation. Not a title. An obligation.

Two parts to this. The duty of care: advice has to serve the client's actual situation. Generic recommendations that happen to benefit the adviser? Not good enough. Then there's the duty of loyalty. The client's interest comes ahead of the adviser's. If a conflict exists between what's good for the client and what's good for the adviser's business, the client wins. Any material conflict the adviser can't eliminate has to be disclosed in writing, in advance, in Form ADV Part 2A. No exceptions.

So what does that look like in practice? A fiduciary investment adviser can't recommend a product because it pays the adviser more than the alternative. Can't hold client assets in a way that benefits the firm at the client's expense. Can't hide relationships with third parties that affect recommendations.

None of that makes an adviser immune to bad judgment or poor outcomes. Investing involves risk, and fiduciary duty doesn't guarantee results. What it does guarantee is that the legal obligation runs to the client, not to a commission schedule or a parent company.

Investment advisers registered under the Investment Advisers Act of 1940 are fiduciaries. That covers RIAs registered with the SEC or with a state securities regulator. The duty applies to the full scope of the advisory relationship, not just at the moment of a trade. A state-registered adviser like Narstar owes that duty continuously: from the moment the advisory agreement is signed through every portfolio decision made afterward.

Broker-dealers and registered representatives? Different standard entirely, covered in the next section. This matters more than people think, because many firms hold both registrations. Which standard protects you depends on which service is being performed at that moment.

Fee-only investment advisers are pure RIAs with no broker-dealer affiliation. No dual registration means no flipping into a lower standard when it's convenient. Fee-based advisers often hold both registrations. They owe fiduciary duty when acting as an adviser, and a lower standard when acting as a broker. Which hat are they wearing right now? That's the question. It's all legal, all disclosed in Form ADV. But it's genuinely confusing for clients who assume the fiduciary label applies to everything the adviser does. If you want to understand how each structure handles compensation, the fee-only vs. fee-based article goes deeper.

Regulation Best Interest (opens in new tab) (Reg BI) requires broker-dealers to act in the best interest of a retail customer at the time of a specific recommendation. That's a real improvement over the old "suitability" standard, which only asked whether a recommendation was appropriate for the customer, not whether it was the best available option. But Reg BI is not the same thing as fiduciary duty.

The biggest difference is timing. Fiduciary duty is continuous. An investment adviser owes loyalty throughout the entire advisory relationship. A conflict of interest surfaces six months in? The adviser has to disclose it immediately, not wait until the next trade. Reg BI works differently. A broker meets the standard if each individual recommendation, at the moment it's made, is in the customer's best interest. Between transactions, there's no ongoing duty. That gap matters.

Disclosure works differently too. An investment adviser files Form ADV Part 2A before the relationship begins and keeps it current. A broker discloses conflicts at the point of recommendation through Form CRS.

From the outside, a fiduciary investment adviser and a broker under Reg BI can look almost identical. Both use the language of "best interest." The legal obligations behind those words are different, and so are the consequences when something goes wrong.

First, look up the adviser on the SEC's Investment Adviser Public Disclosure system at adviserinfo.sec.gov (opens in new tab). Search by name or CRD number. A pure investment adviser shows registration as an RIA without a parallel broker-dealer registration. Dual registration (investment adviser and broker-dealer)? That adviser wears both hats, and the standard protecting you varies by transaction.

Second, read Form ADV Part 2A. This is the document that actually tells you what's going on: advisory services offered, compensation structure, broker-dealer affiliations, disciplinary history. If the disclosures mention services provided in a non-advisory capacity, the adviser has told you, in their own filing, that fiduciary duty doesn't always apply. Every Form ADV is a public document. Ours is linked from the footer of every page on this site. You can also check individual adviser records on FINRA BrokerCheck (opens in new tab) for employment history, licenses, and disclosure events.

Third, ask directly: "Are you a fiduciary for every service you provide to me?" For a pure investment adviser, the answer is yes. Always. If the answer involves any qualification, you know what you're dealing with.

Worth knowing: fiduciary status doesn't mean zero conflicts. An adviser charging a percentage of assets still has an incentive to grow the account rather than recommend other uses for the money. Those remaining conflicts are required to be disclosed in Form ADV. For our disclosures, see our about page. Narstar manages three model portfolios (Income, Growth, and Speculative), each with a different approach to risk and volatility.

Narstar is a fee-only investment adviser in Utah, registered in Utah and conditionally registered in Texas, with no broker-dealer affiliation. Our fiduciary duty applies to every account we manage, from the first trade to the last. Want to verify that? The public records at adviserinfo.sec.gov are the place to start.