For decades, brokers operated under FINRA's suitability rule (and its predecessors), which asked a limited question of every recommendation. Was it reasonable for this type of investment generally, suitable for this particular customer given their investment profile, and, across a series of trades, not excessive? What the rule did not ask was whether the recommendation served the customer better than the alternatives on the shelf. A mutual fund with a sales load could be recommended over a nearly identical cheaper fund; a commission-rich annuity could beat a cheaper suitable one. Suitability was a fit test, not a best-interest test.
Suitability Standard
The suitability standard was the longtime conduct rule for brokers, and it required that a recommended investment be suitable for the customer's situation, though not necessarily the best or cheapest available option. For retail customers it was largely superseded in 2020 by Regulation Best Interest.
Reviewed by
Steven Fox, CFP®, EA
Updated
Quick Summary
- Under suitability, a broker's recommendation had to fit the customer's profile (age, goals, risk tolerance, finances) but did not have to be the best choice among the options.
- If two products both fit, the broker could recommend the one paying the higher commission, which is the conflict the rule became known for.
- Regulation Best Interest (Reg BI) replaced suitability for broker-dealers' recommendations to retail customers as of June 30, 2020.
- Reg BI raises the bar but is still not a fiduciary duty. It applies at the moment of recommendation and requires managing conflicts, not eliminating them.
Definition
Advanced Explanation
The fair history is that suitability was a consumer protection, and a significant one, in the era when brokers were understood to be salespeople. It prohibited recommending speculative products to retirees who couldn't bear the risk, and it gave defrauded customers a rule to point to in arbitration. The problem grew as brokers rebranded as advisors. Customers believed they were receiving advice rendered in their interest, while the legal standard underneath remained a sales rule.
The SEC's Regulation Best Interest, with a compliance date of June 30, 2020, responded to that gap. For recommendations of securities to retail customers, brokers must now act in the customer's best interest at the time of the recommendation and cannot place the firm's interest ahead of the customer's. Reg BI imposes four obligations, covering disclosure, care, conflicts of interest, and compliance; it requires considering costs and reasonably available alternatives, and it bans certain sales contests and quotas. FINRA's suitability rule still exists and continues to govern contexts Reg BI doesn't reach, such as recommendations to institutional customers.
What Reg BI is not: a fiduciary duty. It attaches to the recommendation, not the relationship, so there is generally no ongoing obligation to monitor your account unless the broker agrees to one. It requires conflicts to be disclosed and mitigated rather than avoided, and "best interest" is not defined to mean lowest cost. Investment advisers, by contrast, owe a fiduciary duty across the advisory relationship under the Investment Advisers Act of 1940. Neither regime makes a professional honest or skilled; a firm's Form CRS and an individual's record at adviserinfo.sec.gov or brokercheck.finra.org tell you more than the name of the standard.
Used in a Sentence
“The arbitration turned on the old suitability standard, since the annuity was sold in 2017: the product fit the client's profile on paper, so the broker prevailed even though a cheaper alternative sat on the same shelf.”
How It Works
A hypothetical example showing what changed and what didn't: a retail customer with $100,000 to invest asks a broker for a large-cap stock fund. Two funds on the firm's platform fit her profile. Fund A carries a 5.75% front-end sales load, $5,750 off the top, plus higher ongoing expenses, and pays the broker accordingly. Fund B is a no-load fund with low expenses that pays the broker little or nothing.
Under the suitability standard, recommending Fund A was defensible; both funds were suitable, and the rule didn't require comparing them. Under Reg BI, the broker must exercise reasonable care to consider costs and reasonably available alternatives and may not put the firm's compensation ahead of the customer's interest, which makes Fund A much harder, though not categorically impossible, to justify. What Reg BI still doesn't do is make the broker responsible for that customer's portfolio next year; the obligation attached to the recommendation and ended there.
Pros and Cons
Pros
- Suitability established a baseline: recommendations had to fit the customer's actual circumstances, with arbitration remedies behind it.
- Its successor, Reg BI, adds a best-interest obligation, cost and alternatives analysis, and restrictions on high-pressure sales incentives.
- The transaction-based brokerage model these rules govern can be economical for occasional execution needs.
Cons
- Suitability allowed the higher-commission option whenever multiple products fit, a conflict customers rarely saw.
- Even under Reg BI, the duty applies at the moment of recommendation, with no general obligation to monitor accounts afterward.
- The standards attach to roles, so a dually registered advisor can move between fiduciary duty and Reg BI within one client relationship.
People Also Asked
Answers to the most frequently asked questions.
Does the suitability standard still exist?
Yes, but with a narrower job. Since June 30, 2020, Regulation Best Interest governs broker-dealers' securities recommendations to retail customers. FINRA's suitability rule remains in force for situations Reg BI doesn't cover, such as recommendations to institutional customers, and it shaped decades of arbitration decisions.
Is Regulation Best Interest the same as a fiduciary duty?
No. Reg BI requires a broker to act in a retail customer's best interest at the time of a recommendation and to disclose and mitigate conflicts, which is stronger than suitability. A fiduciary duty, like the one registered investment advisers owe under the Investment Advisers Act of 1940, is broader: it covers the ongoing relationship, pairs loyalty with care, and requires conflicts to be eliminated or disclosed with informed consent.
How do I know which standard my advisor owes me?
Read the firm's Form CRS, the short relationship summary every broker-dealer and investment adviser must give retail investors, which states in plain terms whether you're dealing with a brokerage relationship, an advisory relationship, or both. Then look the firm and the individual up at adviserinfo.sec.gov and brokercheck.finra.org. If the person appears in both systems, they are dually registered and the applicable standard depends on the hat they're wearing.
Was the suitability era as bad as critics say?
It was mixed. Many brokers under suitability served customers well, and the rule blocked genuinely reckless recommendations. The structural flaw was that customers heard "advisor" and assumed best-interest advice while the rule only required fit, and compensation steered which suitable product got recommended. Reg BI narrowed that gap; compensation structure, which the rules don't dictate, still determines most of what remains.
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