12.2 Customer Protection, Possession or Control, Reserve Formula, and Exemptions

Investment Company and Variable Contracts Products Principal Series 26

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1 Chapter 1: Registration of the Broker-Dealer and Its Associated Persons

1.1 Broker-Dealer Registration, FINRA Membership, and Firm Filings 1.2 Individual Registration: Forms U4 and U5, Registration Categories, and Exempt Persons 1.3 Pre-Hire Screening, Fingerprinting, and Statutory Disqualification 1.4 Heightened Supervision, Interim Plans, and the Taping Rule 1.5 Broker-Dealers, Investment Advisers, Dual Registrants, and Unregistered Entities

2 Chapter 2: Training, Continuing Education, and Product Knowledge

2.1 Continuing Education (Rule 1240), the Maintaining Qualifications Program, and the Annual Compliance Meeting 2.2 The Investment Company Act of 1940: Classifications, Registration, and Fund Governance 2.3 Mutual Fund Pricing, Redemption, Exchanges, Sales Charges, and Share Classes 2.4 Variable Annuities and Variable Life Insurance: Structure, Charges, and Rule 2320 2.5 Closed-End and Interval Funds, UITs, Money Market Funds, 529 Plans, and Investment Risks

3 Chapter 3: Supervisory System, Conduct Standards, Insider Trading, and Discipline

3.1 The Supervisory System, Written Supervisory Procedures, and Standards of Conduct 3.2 Insider Trading, Information Barriers, and Personal Trading Supervision 3.3 FINRA Investigations, Disciplinary Proceedings, Sanctions, and Exemptions

4 Chapter 4: Communications with the Public

4.1 Communications Categories, Principal Approval, Filing, and Recordkeeping (Rule 2210) 4.2 Content Standards, Investment Company Advertising, and Professional Designations 4.3 Variable Contract Communications, Fund Rankings, Bond Fund Volatility Ratings, and Investment Analysis Tools 4.4 Correspondence and Internal Communications, Social Media, Public Appearances, and Telemarketing

5 Chapter 5: Recommendations, Customer Accounts, and Product Sales Supervision

5.1 Regulation Best Interest, Conflicts, and Form CRS 5.2 Know Your Customer, FINRA Suitability, and Institutional Accounts 5.3 New Accounts, Customer Authority, Discretion, and Order Handling 5.4 Mutual Fund Breakpoints, Share Classes, and Switching Supervision 5.5 Deferred Variable Annuities and the Seven-Business-Day Principal Review 5.6 Prospectuses, Summary Prospectuses, SAIs, and Ongoing Disclosures

6 Chapter 6: Compensation, Outside Activities, and Personal Conduct

6.1 Cash Compensation, Distribution Arrangements, and Conflicts 6.2 Gifts, Gratuities, and Business Entertainment (Rule 3220) 6.3 Training Meetings, Sales Contests, and Non-Cash Compensation 6.4 Referral Payments, Bank Networking, and Unregistered Persons 6.5 Outside Business Activities, Private Securities Transactions, and Rule 3290 Transition 6.6 Outside Accounts, Borrowing and Lending, Account Sharing, and Guarantees

7 Chapter 7: Customer Account Operations, Transfers, and Privacy

7.1 Account Records, Trusted Contacts, Confirmations, and Statements 7.2 Cash Accounts, T+1 Settlement, Regulation T, Extensions, and Freeriding 7.3 ACATS Transfers, Transfer-on-Death Accounts, and Account Changes 7.4 Regulation S-P, Incident Response, Service Providers, and Identity Theft

8 Chapter 8: Anti-Money Laundering, Customer Identification, and Sanctions

8.1 AML Program, Independent Testing, Training, and Governance 8.2 Customer Identification, Due Diligence, and Beneficial Ownership 8.3 SARs, CTRs, OFAC, Information Sharing, and AML Red Flags

9 Chapter 9: Supervisory Controls, Business Continuity, and Regulatory Reporting

9.1 Supervisory Controls, Annual Testing, and CEO Certification 9.2 Business Continuity, Systems Resilience, Cybersecurity, and Vendors 9.3 Rule 4530, FOCUS and Annual Reports, and Customer-Asset Events

10 Chapter 10: Office Classifications, Inspections, and Records

10.1 OSJs, Branches, RSLs, and Inspection Cycles 10.2 Inspection Reports, Independent Review, Signage, and Office Files 10.3 Broker-Dealer Books and Records, Electronic Storage, and Correspondence

11 Chapter 11: Complaints, Arbitration, Mediation, and Expungement

11.1 Customer Complaints, Investigation, Retention, and Reporting 11.2 Predispute Agreements, Arbitration Codes, Eligibility, Panels, and Awards 11.3 Mediation and Customer-Dispute Expungement

12 Chapter 12: Financial Responsibility, Membership Changes, and Investor Protection

12.1 Net Capital, Minimum Tiers, Haircuts, and Early Warning 12.2 Customer Protection, Possession or Control, Reserve Formula, and Exemptions 12.3 New-Product Review and Continuing Membership Applications 12.4 SIPC, Fidelity Bonds, Proxy Materials, and Financial Reports

12.2 Customer Protection, Possession or Control, Reserve Formula, and Exemptions

Key Takeaways Explain This Topic AI

SEC Rule 15c3-3 separates customer property from broker-dealer use through possession-or-control requirements and a reserve bank account funded by the customer reserve formula.

A carrying firm obtains and maintains physical possession or control of customers' fully paid and excess-margin securities and performs required computations and deposits.

Paragraph (k)(1) covers firms limited to mutual funds, insurance separate-account products and a few related activities that promptly transmit customer funds and securities and do not otherwise hold or owe customer property.

Paragraph (k)(2)(i) is the no-margin, prompt-transmission, special-bank-account exemption; paragraph (k)(2)(ii) covers qualifying fully disclosed introducing arrangements.

Last updated: September 2026

Two Core Protections

SEC Rule 15c3-3 has two complementary mechanisms. First, a carrying broker-dealer must obtain and maintain physical possession or control of customers' fully paid and excess-margin securities. Second, it computes customer credits and debits under the reserve formula and deposits the required amount into a Special Reserve Bank Account for the Exclusive Benefit of Customers . The account separates customer cash from the broker-dealer's own operating funds.

Possession or control is not satisfied merely because the firm can see a position on a screen. Securities must be held at a qualifying control location or otherwise treated as the rule permits, and deficits require prompt action. The firm also cannot use customer securities beyond lawful margin and lending arrangements.

Reserve Computation

The reserve formula compares specified customer credit items—amounts the broker-dealer owes customers—with permitted debit items—amounts customers owe the broker-dealer, adjusted under the rule. When credits exceed permitted debits, the firm deposits the difference. Carrying firms perform the computation and deposit on the frequency applicable to them; larger or higher-risk firms may be subject to more frequent requirements.

The reserve bank account must be properly titled and supported by a written bank notification acknowledging its special status and restrictions. A deposit is not available for payroll, rent or proprietary trading. Withdrawals follow a new computation and may not reduce the account below the required amount.

Paragraph (k)(1) Limited-Business Exemption

Rule 15c3-3(k)(1) applies to a broker-dealer whose dealer transactions are limited to buying, selling and redeeming redeemable securities of registered investment companies or interests in insurance company separate accounts , and whose brokerage transactions are limited to selling and redeeming those securities, soliciting savings and loan share accounts, and selling a customer's securities to raise funds for immediate reinvestment in mutual funds. The firm must promptly transmit all customer funds and deliver all securities it receives and may not otherwise hold funds or securities for, or owe money or securities to, customers. Selling any other product, such as a direct participation program or a listed closed-end fund in the secondary market, takes the firm outside k(1).

This is often called direct-way or subscription business. Customer checks should be payable to the fund, insurer, escrow agent or other proper recipient—not the broker-dealer or representative—and transmitted promptly with the application. A missing check, returned application or suspense item can threaten the factual basis for the exemption.

Paragraph (k)(2)(i) Special-Account Exemption

Under Rule 15c3-3(k)(2)(i), a qualifying broker-dealer carries no margin accounts, promptly transmits customer funds and securities, and maintains a Special Account for the Exclusive Benefit of Customers for all customer transactions. The bank must acknowledge the account's special status and restrictions. This exemption carries a common $100,000 net-capital minimum and depends on actual compliance with the no-margin, transmission, and account conditions.

Paragraph (k)(2)(ii) Fully Disclosed Introducing Exemption

Under Rule 15c3-3(k)(2)(ii), a broker-dealer introduces all customer transactions and accounts on a fully disclosed basis to another registered broker-dealer, which carries the accounts and maintains the required customer books and records. The written clearing agreement and account statements should reflect that allocation. The introducing firm remains responsible for its own supervision, records, communications, AML and other assigned duties. Its net-capital minimum depends on whether it receives customer securities or other property and on its actual activities.

• Model Customer-property control
• Carrying firm Possession or control plus reserve computation and deposit
• k(1) limited direct-way firm Prompt transmission; no holding or owing customer property
• k(2)(i) special-account firm No margin accounts; prompt transmission; exclusive-benefit special account
• k(2)(ii) fully disclosed introducer Clearing firm carries all introduced accounts under the written allocation
• Exception Escalation

The principal should review payable-to information, receipt and forwarding timestamps, rejected applications, returned checks, stale items, customer credits, possession-or-control deficits and reserve adjustments. Repeatedly holding checks overnight, depositing customer money into an operating account, or conducting activity outside the firm's exempt business can cause a substantive customer-protection and net-capital violation. Escalation must occur immediately rather than wait for the next annual audit.

Allocation of Duties

In a fully disclosed arrangement, the carrying agreement allocates functions such as account opening, confirmations, statements, custody, reserve computations and margin. The introducing firm should test the clearing firm's performance and perform its retained duties; it cannot answer every exception by pointing to the agreement.

Direct business requires an equally clear chain among representative, broker-dealer, product sponsor and transfer agent. Logs should show when an application and check were received, by whom, when transmitted and how rejections were resolved. Customer property may not sit in a desk or unmonitored inbox while missing information is obtained.

Reserve and possession-or-control breaks should be aged by cause and security. Repeated deficits involving one custodian, stock-loan process or coding rule require root-cause correction, not repeated temporary buy-ins alone.

Bank confirmations and reserve-account agreements should be reviewed for unauthorized liens, sweeps or setoff language. A properly titled account can still fail if ordinary treasury controls permit the bank or firm to use it for noncustomer obligations.