Quick Answer
Know-your-customer (KYC) always applies; suitability applies only when a recommendation is made. Recommendations to retail customers (natural persons for personal use) fall under Regulation Best Interest (Reg BI); institutional recommendations stay under the FINRA suitability rule. Reg BI has four obligations; suitability has three cumulative obligations. Form CRS is delivered to retail investors so they can compare firms.
The whole unit on one sheet: which standard applies to whom, the three suitability layers, Reg BI's four obligations, and the numbers the exam loves.
Which Rule Applies (Start Here)
- KYC rule: always on, every account, whether or not a recommendation is made. Gathers essential facts to service the account, follow special-handling instructions, know each person's authority, and comply with the rules.
- FINRA suitability rule: triggered by a recommendation; governs non-retail (institutional) recommendations.
- Reg BI: triggered by a recommendation to a retail customer (a natural person, or non-professional legal rep of one, using it primarily for personal, family, or household purposes). Absorbs and exceeds suitability.
- A recommendation can be to buy, sell, hold, or adopt a strategy involving securities.
The Three Suitability Obligations (Cumulative)
- Reasonable-basis: understand the product. Can attach before any customer exists. Is it OK for at least some investors?
- Customer-specific: match to this customer's investment profile.
- Quantitative: the series of trades is not excessive. Only applies where the rep has actual or de facto control of the account (the churning context).
- All three must pass, not just one.
Reg BI's Four Obligations
- Disclosure: full and fair written disclosure before or at the time of the recommendation (relationship, fees, conflicts; identify BD status).
- Care: mirrors the three suitability layers, but the standard is best interest, not merely suitable.
- Conflict of Interest: identify conflicts, then disclose, mitigate, or eliminate.
- Compliance: written policies and procedures to achieve overall Reg BI compliance.
- All four required; complying with some but not all is not a safe harbor.
The One-Liners That Win Points
- KYC always; suitability only on a recommendation; Reg BI only for retail.
- "Hold" is a recommendation. "Stay in that fund" triggers suitability under the customer's current profile, not the profile at purchase.
- A strategy is a recommendation even with no specific security named (dollar-cost averaging, laddering, sector rotation).
- Reg BI is "at the time of the recommendation," not a continuous fiduciary duty. The Investment Advisers Act imposes the ongoing fiduciary standard.
- Sales contests, quotas, and non-cash comp tied to specific securities in a limited period must be ELIMINATED, not just disclosed.
- Retail investor (Form CRS) is broader than retail customer (Reg BI): a prospect who has not yet received a recommendation still gets Form CRS.
- A $50 million natural person can qualify as an institutional account.
- Negative consent is never affirmation: silence does not waive customer-specific suitability.
Numbers to Lock In
| Item | Value |
|---|---|
| Suitability profile factors | 9 named factors plus a catch-all |
| Institutional-account asset floor | $50 million total assets |
| Institutional-exemption conditions | all 3 required |
| Reg BI obligations | 4 (Disclosure, Care, Conflict, Compliance) |
| Form CRS: BD or IA alone | not more than 2 pages |
| Form CRS: dual registrant combined | not more than 4 pages |
| Form CRS required sections | 5 |
| Form CRS delivery upon request | within 30 days |
| Form CRS amendment refile and repost | within 30 days |
| Communicate amendments to existing customers | within 60 days, no charge |
| Investment-analysis-tool access and template filing | within 10 business days of first use |
The Nine Profile Factors
Age; other investments; financial situation and needs; tax status; investment objectives; investment experience; investment time horizon; liquidity needs; risk tolerance; plus any other information the customer discloses. Risk tolerance and time horizon are the two candidates most often drop, and both are required.
The Institutional-Customer Exemption
- Waives customer-specific suitability only. Reasonable-basis always applies; quantitative still applies where control exists.
- All three conditions: institutional-account status (listed entity or $50 million in assets), a reasonable belief the customer can evaluate risk independently, and the customer's affirmative indication of independent judgment.
- Reg BI does not cover institutional customers: they stay under the FINRA suitability rule.
Municipal and Tool Overlays
- MSRB municipal-suitability rule: the muni parallel to the FINRA suitability rule, covering 529 plans, Local Government Investment Pools (LGIPs), and ABLE accounts. Same three obligations. Tax status is outcome-determinative (recommending tax-exempt munis to a low-bracket customer is a classic red flag). For retail customers, Reg BI compliance satisfies it.
- Investment-analysis-tool rule: governs interactive tools that simulate outcomes. Requires written disclosure of methodology, limitations, assumptions, universe of investments, and revenue bias. Additive to the suitability rules, not a substitute.
Top Gotchas
- The three suitability obligations are cumulative, not alternative. Passing reasonable-basis but failing customer-specific is still unsuitable.
- A customer's refusal to share does not close the account: it stops recommendations. The firm may still open the account and take unsolicited orders; document the refusal.
- Reg BI applies to retail only. A corporate pension plan, bank treasury desk, or hedge fund gets the FINRA suitability rule, not Reg BI.
- A rollover recommendation triggers Form CRS on its own, even if no new account is opened.
- The investment-analysis-tool clock starts at first use, not first design or first internal test, and requires both FINRA access and template filing.
- The rules stack. A retail customer buying a 529 plan with a Monte Carlo tool activates Reg BI, Form CRS, the MSRB municipal-suitability rule, and the investment-analysis-tool rule at once.
One-Breath Recap
Ask two questions: was a recommendation made, and who is the customer. No recommendation means KYC only; a recommendation to a retail natural person means Reg BI (four obligations) plus Form CRS, while an institutional recommendation stays under the FINRA suitability rule with its three cumulative layers. Remember hold is a recommendation, sales contests get eliminated, and the muni and tool rules stack on top.
Need more than the recap? This is a condensed summary. If it is not enough, read the full Customer Investment Profiles and Suitability unit for the complete lesson.