FINRA

FINRA, the Financial Industry Regulatory Authority, is the self-regulatory organization that registers and regulates broker-dealers and their associated persons in the United States, operating under SEC oversight.

FINRA is a private membership organization, not a government agency. It cannot write federal law, it cannot indict anyone, and it cannot send anyone to prison. What it has is a rulebook binding on its members, an examination and enforcement staff, and the authority it exercises as an SRO under the SEC. Nearly every broker-dealer doing a public securities business in the United States must be a member, which is why FINRA’s rules reach almost every registered representative.

What FINRA actually does

Four jobs cover most of the exam’s questions.

It writes conduct rules for member firms and their people, and files every proposed rule with the SEC, which generally must approve it before it takes effect.

It registers people. The employing firm files Form U4 through the Central Registration Depository, the individual receives a CRD number that stays with them for their career, and BrokerCheck publishes that registration and disclosure history to the public at no charge.

It administers the qualification examinations, including the SIE itself and the state-law exams whose content NASAA writes.

It examines and disciplines its members. Sanctions run to fines, suspensions, bars from associating with any member firm, and expulsion of the firm itself.

Example: FINRA raised the Rule 3220 gift limit from $100 to $300 per person per year, effective March 30, 2026. Drafting that change did not make it a rule. FINRA filed it with the SEC, the SEC approved it, and only then did the number move. Most SRO rule changes travel that same path, and the exam expects you to recognize the sequence.

The exam trap

The trap is jurisdiction, and it runs in both directions.

Upward: candidates promote FINRA into a government agency. It is not one. A FINRA bar keeps someone out of the industry; a prison sentence requires a criminal referral to the Department of Justice and a judge. Even the SEC’s own powers here are civil and administrative.

Downward: candidates shrink FINRA’s reach. FINRA enforces its own rules against its members, and it also enforces MSRB rules against member firms doing municipal business, because the MSRB has no enforcement arm. A bank dealer that is not a FINRA member answers to the federal banking regulators instead.

A third version dresses up membership as an endorsement. “Member FINRA/SIPC” on a letterhead means the firm’s conduct is regulated. It is not government approval, and it is not a promise the customer cannot lose money.

Related distinctions

Keep four bodies apart: the SEC is the federal agency at the top, FINRA is the SRO for broker-dealers, the MSRB writes municipal rules it cannot enforce, and NASAA is the association of state administrators behind blue-sky registration and the Series 63, 65, and 66.

Check yourself

1. FINRA concludes that a registered representative defrauded three customers. Which sanction is beyond FINRA's authority?

   1. Fining the representative
   2. Suspending the representative for one year
   3. Sentencing the representative to a prison term
   4. Barring the representative from associating with any member firm

   Show answer and explanation

   Answer: C. Sentencing the representative to a prison term.

   The trap treats FINRA as a government prosecutor. FINRA is a private SRO: its sanctions are fines, suspensions, bars, and expulsion. Imprisonment requires a criminal case brought by the Department of Justice and a sentence imposed by a court.

2. FINRA's board approves an amendment raising a dollar threshold in one of its conduct rules. When does the new threshold bind member firms?

   1. Immediately, because FINRA writes its own rules
   2. After the amendment is filed with and approved by the SEC and its effective date arrives
   3. After a majority of member firms vote to adopt it
   4. After Congress amends the Securities Exchange Act of 1934

   Show answer and explanation

   Answer: B. After the amendment is filed with and approved by the SEC and its effective date arrives.

   The trap is the word "self" in self-regulatory. FINRA drafts and enforces, but it operates under SEC oversight, and a proposed SRO rule generally must be filed with and approved by the SEC before it takes effect. Neither a member vote nor an act of Congress is part of the process.

Practice it: regulators and SROs practice questions