Customer Complaints: FINRA Rule 4513

Not every customer grievance counts as a reportable "complaint." Phone frustration does not. A written letter, email, or text does. FINRA Rule 4513 sets the recordkeeping rules for what counts, where it lives, and how long it stays there.

What counts as a customer complaint under FINRA Rule 4513?

The rule defines a complaint broadly but requires a specific form.

• Definition: any grievance by a customer or a person authorized to act on behalf of the customer involving the activities of the member or an associated person in connection with the solicitation or execution of any transaction, or the disposition of securities or funds of that customer
• Written form required: the grievance must be in writing to be a "complaint" under Rule 4513. Written includes letters, emails, text messages, faxes, social-media direct messages (DMs), and any other written communication
• Oral grievances excluded: phone calls and in-person conversations are not complaints under 4513, even when the substance is identical to a written grievance

Many firms still track oral grievances internally as a best practice, and many written complaints begin as oral conversations that get escalated to writing. But only the written version triggers Rule 4513's recordkeeping obligations.

Exam Tip: Gotchas

• Oral complaints are NOT "complaints" under FINRA Rule 4513. Only written grievances count for the Office of Supervisory Jurisdiction (OSJ) file. A stem that describes a customer phoning in a grievance and asks whether the OSJ file must include it is testing this distinction.

How must a firm maintain its customer-complaint file under Rule 4513?

Rule 4513 requires each member to keep and preserve customer-complaint records at each Office of Supervisory Jurisdiction (OSJ). The firm has two acceptable formats and one alternative-compliance option.

Format options at each OSJ. Each member must keep one of the following:

• A separate file of all written customer complaints relating to that office (including complaints that relate to activities supervised from that office), together with any action taken by the member, OR
• A separate record of such complaints plus a clear reference to the files containing the underlying correspondence

Retention. Records must be preserved for a period of at least 4 years. The 4-year window is calibrated to FINRA's 4-year routine examination cycle for most member firms.

Alternative compliance. Rather than physically keeping the records at the OSJ, a member may keep them elsewhere provided they are promptly made available at that office upon FINRA request.

Exam Tip: Gotchas

• OSJ complaint records retain for 4 YEARS. Not 6 years (that is the customer-account tier) and not 3 years (that is the order-ticket tier). The 4-year retention under Rule 4513 aligns with FINRA's 4-year routine examination cycle.

How must a rep handle a written customer complaint?

A rep who receives a written customer complaint has a defined escalation path. Deviation from the path creates its own violations.

1. Forward to supervisor: the rep must promptly forward the written complaint to the appropriate principal (branch manager or OSJ supervisor). The rep may not handle it privately, destroy it, or return it to the customer.
2. Acknowledge and investigate: the firm acknowledges receipt to the customer, investigates the allegations, and documents its conclusions.
3. Retain with action taken: the complaint, the investigation file, and the firm's response (refund, correction, denial) are retained together in the OSJ file.

Why this escalation path matters. The 4513 file is not just a list of complaints. It is a paired record of complaint + action taken, which is how FINRA examiners evaluate whether the firm's supervisory system is actually responsive to customer grievances.

What happens when a rep mishandles a customer complaint?

Three classic mishandling patterns each create their own rule violations, on top of the original complaint.

• Destroying, altering, or failing to log a written complaint: a books-and-records violation of Rule 4513 and of Securities Exchange Act (SEA) Rule 17a-4 (cross-reference Unit 10)
• Private settlement with the customer: a rep cannot resolve a complaint by sending the customer money out of their own pocket, offering a personal promise to make the customer whole, or entering into a side agreement that bypasses the firm. Private settlements can constitute selling away or unauthorized private securities transactions under FINRA rules related to outside business activities.
• Failing to escalate a reportable complaint: if the complaint alleges theft or misappropriation, the firm has a separate 30-calendar-day reporting obligation under Rule 4530(a)(1)(B). A rep who sits on such a complaint is delaying the firm's clock and creating joint liability.

A pattern of complaint mishandling can support suspension or bar proceedings under the 8000 Series, separate from whatever the underlying complaints were about.

Exam Tip: Gotchas

• A rep cannot resolve a complaint by sending the customer money out of their own pocket. Private settlement is a sales-practice violation on top of whatever caused the original grievance. All complaint resolutions must flow through the firm and be documented in the OSJ file.
• Forwarding to the principal is mandatory, not optional. A rep who "handles it myself" by calling the customer and offering informal remediation has violated Rule 4513 even if the customer ends up satisfied. The file still must be created and the principal still must review.

How does Rule 4513 connect to Form U4 amendments and Rule 4530 reporting?

The 4513 complaint file is the starting point for everything downstream.

• A complaint that alleges theft or misappropriation triggers a Rule 4530(a)(1)(B) 30-day report to FINRA (Section 3)
• A complaint alleging a sales-practice violation with $5,000 or more in claimed damages triggers a Form U4 amendment (Section 5)
• A complaint that leads to arbitration under the 12000 Series Customer Code starts in this file (Section 4)
• A pattern of complaints can trigger an 8000 Series investigation (Section 6)

Think of Rule 4513 as the intake point. Once a written grievance lands in the OSJ file, it has entered the firm's formal compliance machinery, and the rep's personal discretion over how to handle it is gone.