What FINRA membership means for a broker-dealer, how firms join, the rules and discipline they face, and how to check any firm on BrokerCheck before you invest
A FINRA member firm is a broker-dealer that has been admitted to membership of the Financial Industry Regulatory Authority, the self-regulatory organization that oversees broker-dealers in the United States under the supervision of the SEC. Membership means the firm has agreed to follow FINRA’s rules, pay its fees, submit to its examinations and accept its discipline.
You can check whether a firm is a FINRA member, and see its registration and disciplinary history, using BrokerCheck, FINRA’s free public search tool. Every member firm and every registered representative working for one has a BrokerCheck report.
This guide covers what membership involves, which firms must join, how a firm becomes a member, the rules members follow, how FINRA disciplines them, how to check a firm, how member firms differ from investment advisers, the exam traps and five practice questions. For the general definition, the FRC dictionary entry on a member firm sets out the term in brief.
Who FINRA Is
FINRA was formed in 2007 when the National Association of Securities Dealers merged with the member regulation functions of the New York Stock Exchange. It is not a government agency, but a private, not-for-profit organization authorised by Congress and overseen by the SEC.
FINRA writes and enforces rules for its member firms and the people who work for them. It examines firms, licenses representatives through the qualification exams, monitors trading in the markets and runs the largest securities dispute resolution forum in the United States.
The SEC approves FINRA’s rules before they take effect and can review its disciplinary decisions. That structure is what makes FINRA a self-regulatory organization: the industry funds and staffs its own regulator, with the SEC standing over it.
Where This Topic Appears on the Exams
FINRA membership is introduced on the SIE, tested in depth on the Series 7 and appears on the Series 65 wherever broker-dealer and investment adviser regulation meet. Series 65 questions typically ask which regulator oversees a firm, whether an investment adviser must be a FINRA member, or where an investor can check a firm’s history.
FRC’s Series 65 Exam Preparation course covers how FINRA, the SEC and the states divide oversight, and the Series 65 needs no sponsoring firm. The SIE Examination Preparation course explains FINRA’s role from the ground up, and the Series 7 Exam Preparation course covers the member firm rules a registered representative works under every day.
Every FRC course can be spread across interest-free monthly payments, so cost is no reason to delay. Regulator questions are quick marks once you know which body oversees which type of firm.
Which Firms Must Be FINRA Members
The Securities Exchange Act of 1934 requires a registered broker-dealer to become a member of a registered national securities association, and FINRA is the only one. In practice, nearly every broker-dealer that does business with the public must be a FINRA member.
A narrow exception applies to some firms that trade only on an exchange of which they are a member and do not deal with the public in the ordinary way. These firms are rare, and for exam purposes the safe assumption is that a broker-dealer serving retail customers is a FINRA member.
Membership is a firm-level status. Individuals are not members of FINRA; they are registered with FINRA through the member firm that employs them, as associated persons of that firm.
How a Firm Becomes a Member
A firm begins by filing Form BD through the Central Registration Depository, which registers it with the SEC, FINRA and the states at the same time. It then files a new member application with FINRA under FINRA Rule 1013.
FINRA reviews the application against the standards in FINRA Rule 1014. These include whether the firm has adequate capital, a workable business plan, proper supervisory systems, qualified principals, and owners and managers without disqualifying histories.
The review includes an interview with the firm’s management. FINRA can approve the application, approve it with restrictions on the firm’s business, or deny it, and the firm cannot operate as a broker-dealer until it is approved.
Changes After Membership
Membership is granted for the business the firm described in its application. If the firm later wants to make a material change, such as adding a new line of business, merging with another firm or transferring a large ownership stake, it must apply to FINRA under FINRA Rule 1017.
This continuing membership application process stops firms from expanding into areas they are not equipped to supervise. A firm approved only for mutual fund sales, for example, cannot simply begin trading options for customers.
The firm must also keep its Form BD current. Changes to its ownership, control persons or disciplinary history are reported through amendments, and those changes flow through to its BrokerCheck report.
Registering the People
Every member firm registers its representatives and principals with FINRA by filing Form U4 for each one. The individual must pass the qualification exams for their role, such as the SIE and the Series 7 for a general securities representative.
Supervisors must register as principals and pass a principal exam, most commonly the Series 24 for a general securities principal. Registration requirements are set out in FINRA Rule 1210.
Each registered person receives a CRD number that stays with them throughout their career. FRC’s guide to what a CRD number is and how to find it explains how that record follows a representative from firm to firm.
The Rules Member Firms Follow
Member firms must observe high standards of commercial honor and just and equitable principles of trade under FINRA Rule 2010. This broad rule allows FINRA to discipline conduct that is unethical even where no more specific rule applies.
Firms must also establish and maintain a system to supervise the activities of each associated person under FINRA Rule 3110. Supervision covers written procedures, review of transactions and correspondence, designated principals and regular inspections of offices.
Other core obligations include knowing their customers, making suitable recommendations, following the communications rules, and meeting the SEC’s net capital and customer protection requirements. Recommendations to retail customers are also governed by the SEC’s Regulation Best Interest.
Financial Requirements
Every broker-dealer must meet the SEC’s net capital rule, Rule 15c3-1, which requires it to hold enough liquid assets to meet its obligations. FRC’s guide to what net capital a broker-dealer must maintain under SEC Rule 15c3-1 explains the minimums.
FINRA monitors compliance through regular financial reports filed by its members and through its examinations. A firm that falls below its required capital must notify regulators and may have to restrict or stop its business.
Most broker-dealers must also be members of the Securities Investor Protection Corporation. SIPC protects customers of a failed member firm up to $500,000 per customer, including up to $250,000 in cash, but it does not protect against investment losses.
How FINRA Examines Member Firms
FINRA examines member firms on a regular cycle, with the frequency and depth based on the firm’s size, business and risk profile. Examiners review books and records, supervisory systems, sales practices and financial condition.
FINRA can also open targeted examinations, called sweeps, when it identifies a concern across the industry. Under FINRA Rule 8210, members and their associated persons must provide information, documents and testimony when FINRA requests them.
Refusing an 8210 request is treated as a serious violation in its own right. An individual who fails to respond can be barred from the industry.
How FINRA Disciplines Member Firms
When FINRA finds a violation, it can bring a disciplinary action under its Code of Procedure. Sanctions under FINRA Rule 8310 include censure, fines, suspension, expulsion of a firm and bars of individuals.
Expulsion is the most severe sanction for a firm. A firm expelled from FINRA can no longer act as a broker-dealer with the public.
Decisions can be appealed within FINRA and then to the SEC, and from the SEC to a federal court of appeals. Disciplinary actions are published and appear on the firm’s and individuals’ BrokerCheck reports.
Disputes Between Customers and Member Firms
Most disputes between customers and member firms are resolved through FINRA’s arbitration forum. A customer can generally require a member firm to arbitrate a dispute, and many brokerage account agreements also commit the customer to arbitration.
Arbitration is usually faster and less formal than court, and the decision is generally final and binding with very limited grounds for appeal. FINRA also offers mediation, where a neutral mediator helps the parties reach a settlement voluntarily.
Arbitration awards against firms and representatives are disclosed on BrokerCheck. That record is one of the reasons investors are encouraged to check a firm before opening an account.
How to Check a FINRA Member Firm
Checking a firm takes a few minutes. Go to BrokerCheck, enter the firm’s name or its CRD number, and open the firm’s report.
The report confirms whether the firm is currently registered as a broker-dealer and a FINRA member, and lists the states where it is registered. It also shows the firm’s history, its ownership and any disclosures, such as regulatory actions, arbitration awards and civil judgments.
You can search for an individual representative in the same way. Their report shows their current firm, past employers, exams passed, the states they are registered in and any disclosures, which is why a representative’s history follows them wherever they go.
What a Member Firm Must Tell You About BrokerCheck
FINRA rules require member firms to point customers to BrokerCheck. Under FINRA Rule 2267, firms must give customers the BrokerCheck hotline number and website address, along with a statement that an investor brochure about BrokerCheck is available, at least once a year.
Under FINRA Rule 2210, a member firm’s website must include a readily apparent reference and link to BrokerCheck on its initial page for retail investors, and on any page that profiles a registered person. The phrase “Member FINRA/SIPC” on a firm’s website is common, but it is a claim to check, not proof on its own.
If a firm claims to be a FINRA member and you cannot find it on BrokerCheck, treat that as a warning sign. Fraudsters sometimes copy the name of a real firm, so check that the address, phone number and website match the BrokerCheck report as well.
Member Firms vs Investment Advisers
Investment advisers are not FINRA members simply because they are advisers. Registered investment advisers are regulated by the SEC or by the states, depending on their size, and they file Form ADV rather than Form BD.
Many financial firms are dual registrants, registered as both a broker-dealer and an investment adviser. The broker-dealer side is a FINRA member, while the advisory side is overseen by the SEC or the states.
Individuals often hold both registrations too. FRC’s guide to what a registered investment adviser is covers the adviser side, and investors can search advisers through the SEC’s Investment Adviser Public Disclosure database as well as BrokerCheck.
Member Firms and State Registration
FINRA membership does not replace state registration. A member firm must also register as a broker-dealer in each state where it does business, unless an exclusion or exemption applies, and its agents must register in those states too.
FRC’s guide to who is excluded from the definition of a broker-dealer explains when a firm falls outside state registration. The guide to what an agent is under the Uniform Securities Act covers the individual side.
The three layers work together. The SEC registers the firm federally, FINRA admits it to membership and supervises its conduct, and the states register it locally and keep their antifraud and disciplinary powers.
Worked Example: Checking a New Brokerage
An investor is considering opening an account with a brokerage she found online. Its website says “Member FINRA/SIPC.”
She searches the firm’s name on BrokerCheck and finds a matching report. The firm is registered as a broker-dealer, is a FINRA member, is registered in her state and has two small arbitration awards from several years ago.
She also checks that the address and phone number on BrokerCheck match the website. Having confirmed the firm is real and seen its record, she can make an informed choice about whether to open the account.
Worked Example: The Missing Firm
A caller offers an investor shares in a pre-IPO company and says his firm is a FINRA member. When the investor searches BrokerCheck, no firm with that name appears.
The absence of a BrokerCheck report means the firm is not a registered broker-dealer, so it is not a FINRA member. Selling securities without registration is unlawful, and the offer is very likely a scam.
The investor should not send money and can report the contact to FINRA, the SEC or her state securities regulator. FRC’s guide to what powers the state Administrator has explains how states act against unregistered sellers.
Worked Example: The Dual Registrant
A firm offers both commission-based brokerage accounts and fee-based managed accounts. Its representatives hold the Series 7 and the Series 65.
The brokerage side is a FINRA member and is examined by FINRA. The advisory side is a registered investment adviser and is examined by the SEC or the state, depending on its size.
When the firm recommends a brokerage transaction, FINRA rules and Regulation Best Interest apply. When it gives advice through a managed account, the adviser’s fiduciary duty applies.
The Exam Traps
The first trap is calling FINRA a government agency. FINRA is a self-regulatory organization overseen by the SEC, not part of the government.
The second trap is assuming investment advisers must be FINRA members. Advisers are regulated by the SEC or the states, and only their broker-dealer affiliates or dual-registered arms are FINRA members.
The third trap is assuming FINRA membership removes the need for state registration. Member firms and their agents still register with the states where they do business.
The fourth trap is treating SIPC coverage as protection against investment losses. SIPC protects customers when a member firm fails and their assets are missing, not when investments fall in value.
FRC’s guide to Series 65 ethics and laws questions and exam traps covers more traps in this area. For the full list, see FRC’s guide to Series 65 exam traps and common mistakes.
A Memory Aid
Remember “the SEC registers, FINRA polices, the states license locally.” That covers the three layers that apply to every member firm.
For checking a firm, remember “BrokerCheck before you pay.” Look the firm up before you send any money.
Practice Questions
Question one: is FINRA a government agency? No, FINRA is a self-regulatory organization overseen by the SEC.
Question two: must a registered investment adviser be a FINRA member? No, advisers are regulated by the SEC or the states; only broker-dealers must be FINRA members.
Question three: which FINRA rule requires every member firm to supervise its associated persons? FINRA Rule 3110.
Question four: what is the most severe sanction FINRA can impose on a member firm? Expulsion from membership.
Question five: where can an investor check whether a firm is a FINRA member and see its disciplinary history? On BrokerCheck, FINRA’s free public search tool.
Related Questions
Every career at a broker-dealer starts with a member firm agreeing to register you. FRC’s guide to how to find a firm willing to sponsor you explains how candidates approach member firms for sponsorship.
For the wider set of FINRA membership and registration rules, FRC’s FINRA rules quick reference on membership and registration brings them together in one place.
Get Exam-Ready
Member firm questions reward candidates who can place each type of firm with its regulator. Once the roles of the SEC, FINRA and the states are clear, these become dependable marks on every exam from the SIE to the Series 65.
The FRC dictionary is more than a dictionary. It is a library of explainer videos, written explanations and on-page quizzes covering the FINRA and SEC rules you are tested on, so you can open any term and go deeper whenever a question catches you out.
Study With FRC
FRC’s programs and memberships are open to everyone. Whether you are preparing for the Series 65, the Series 7, the SIE or a combination, structured exam preparation turns topics like FINRA regulation into marks you can rely on.
FRC’s Professional Membership adds verified progress and a Digital Profile, so when you apply to member firms, hiring managers can see your exam progress and the knowledge you are building, not just read about it on a resume.
Your Next Step
A FINRA member firm is a broker-dealer admitted to membership of FINRA, bound by its rules, examined by it and subject to its discipline. Nearly every broker-dealer serving the public must be a member, while investment advisers are regulated separately by the SEC or the states.
To check a firm, search it on BrokerCheck, confirm its registration and read its disclosures before you send any money. Remember “the SEC registers, FINRA polices, the states license locally,” and you will be ready for every version of this question the exam can ask.

