RIA vs. Broker-Dealer

The Two Regulatory Frameworks

When a family hires someone to help manage investments, that person or firm operates under one of two primary federal regulatory frameworks — or sometimes both at once. The first is the registered investment adviser (RIA) framework, governed by the Investment Advisers Act of 1940 and overseen by the Securities and Exchange Commission (SEC) or, for smaller firms, by state regulators. The second is the broker-dealer framework, governed by a separate set of securities laws and overseen primarily by the Financial Industry Regulatory Authority (FINRA), a self-regulatory organization authorized by the SEC.

These frameworks were built for different original purposes. Broker-dealers were designed around executing transactions — buying and selling securities on behalf of customers. Investment advisers were designed around providing ongoing advice for compensation. Over decades, the practical lines have blurred considerably, which is why understanding the underlying rules matters more than reading a business card.

Fiduciary Duty vs. Best Interest

The single most important legal distinction is the standard of conduct each framework imposes. RIAs owe their clients a fiduciary duty — a legal obligation that requires them to act in the client's best interest at all times, to disclose all material conflicts of interest, and to avoid placing their own interests ahead of the client's. This duty is continuous: it applies to every recommendation, every portfolio decision, and every conversation, not just at the moment of a transaction.

Broker-dealers operate under what the SEC calls Regulation Best Interest (Reg BI), adopted in 2019. Reg BI requires broker-dealers to act in a retail customer's best interest when making a recommendation and to disclose conflicts of interest. This standard is meaningfully stronger than the older "suitability" standard it replaced, which only required that a recommendation be suitable for a customer. However, securities law scholars and regulators have debated whether Reg BI rises to the level of a full fiduciary duty, and the answer, broadly, is that it imposes comparable obligations in some respects but is structured differently — particularly around ongoing monitoring and the depth of conflict disclosure required.

A qualified attorney or compliance professional is the right resource for any family that wants a precise legal analysis of how these standards apply to their situation.

How Each Model Is Paid

Compensation structures tend to differ between the two models, and compensation is often where conflicts of interest originate. Understanding how an adviser or broker is paid is one of the most useful things a family can do before or during a relationship. The article on how advisers are paid explores this in more detail, but the basics are worth understanding here.

RIAs are typically compensated in one of a few ways:

• Fee-only: Clients pay directly — often as a percentage of assets under management, a flat retainer, or an hourly fee. The firm receives no commissions from product sales.
• Fee-based: The firm charges advisory fees but may also receive compensation from third parties, such as fund companies. This is technically permitted for RIAs but must be disclosed as a conflict.

Broker-dealers have historically been compensated primarily through commissions — payments received each time a transaction is executed — and through other forms of product-based compensation such as revenue sharing, 12b-1 fees embedded in mutual funds, or markups and markdowns on bond trades. These structures can create an incentive to recommend transactions that generate higher compensation, which is precisely why Reg BI's conflict-disclosure requirements exist.

Neither model is inherently superior. A fee-only RIA still has potential conflicts — for example, an incentive to keep assets under management rather than recommending a client pay off debt. The key is understanding what the conflicts are, not assuming they don't exist.

Dual Registrants and Hat-Switching

A significant source of confusion for families is the existence of dual registrants — firms or individuals who are registered as both an RIA and a broker-dealer. Many large financial institutions, wirehouses, and regional firms operate under both registrations simultaneously. This is legal and common, but it means the professional sitting across from a family may be operating under different legal standards at different moments in the same conversation.

When acting in an advisory capacity — managing a discretionary portfolio, for instance — the professional owes a fiduciary duty. When switching to a brokerage capacity — recommending a specific product for a commission — the Reg BI standard applies instead. This phenomenon is sometimes called "hat-switching." The SEC requires dual registrants to disclose clearly which capacity they are acting in, but these disclosures can be dense and easy to overlook.

Families working with investment advisers of any type are generally well-served by asking directly: "Are you acting as my fiduciary in this recommendation?" and getting the answer in writing where practical.

Disclosures: The Real Story

The most important documents in any advisory relationship are the required disclosure forms. RIAs must file and deliver a Form ADV, a standardized document that describes the firm's services, fees, investment strategies, and — critically — its conflicts of interest. Part 2 of the ADV, the "brochure," must be written in plain English. Broker-dealers and their registered representatives must provide a Form CRS (Client Relationship Summary), a shorter document designed to help retail customers understand the nature of the relationship, the services offered, the fees, and the standard of conduct.

Both forms are publicly available through the SEC's IAPD database (for RIAs) and FINRA's BrokerCheck tool. Reading these documents before or during an engagement is one of the highest-value activities a family can undertake. The conflicts-of-interest section, in particular, often reveals compensation arrangements and business relationships that would otherwise be invisible.

The label "fiduciary" is a starting point for a conversation, not an ending point. What matters is understanding specifically what conflicts exist, how they are managed, and whether the family is comfortable with that picture.

How This Fits Into Building an Advisory Team

Wealthy families rarely work with a single adviser. A typical advisory team might include an RIA managing the investment portfolio, a private bank providing lending and custody services, estate attorneys, CPAs, and various specialists. The article on building an advisory team covers team construction in depth.

Private banking relationships add another layer of complexity, because private banks often offer both advisory and brokerage services under one roof, sometimes bundled with lending, custody, and other services. Families with these relationships benefit from understanding clearly which services are being provided under which regulatory framework.

The table below summarizes some of the structural differences between the two frameworks at a high level. Families should verify specifics with qualified legal and compliance professionals, as rules evolve.

Questions Worth Asking

Regardless of the regulatory framework a firm operates under, families evaluating any professional relationship are generally well served by asking concrete questions. A fuller list appears in questions to ask any adviser, but several are especially relevant here:

• Are you a fiduciary at all times, or only some of the time? When are you not acting as a fiduciary?
• How are you compensated, and does any part of your compensation depend on what I buy or how much I trade?
• Do you or your firm receive any payments from fund companies, custodians, or other third parties in connection with my account?
• If you are a dual registrant, can you explain in plain language when you are acting in an advisory capacity versus a brokerage capacity?
• Where can I find your Form ADV or Form CRS, and will you walk me through the conflicts-of-interest section?

The goal is not to assume bad faith — most financial professionals operate with integrity — but to understand the structure of the relationship clearly enough to evaluate whether it serves the family's interests.