FINRA Rule 4511: books and records for broker-dealers

FINRA Rule 4511 is short: three paragraphs and no supplementary material. FINRA's rule page lists it as “Adopted by SR-FINRA-2010-052 eff. Dec. 5, 2011”, with no later amendment. Most of its work is pointing. It tells a member to keep what other rules require, fills one gap with a six-year default, and borrows the SEC's storage standard for FINRA records.

So the answer to “how long do we keep this?” is almost never in Rule 4511 itself. It is in Exchange Act Rule 17a-4, or in the FINRA rule that created the record. Rule 4511(b) only answers when both are silent.

Rule 4511 binds FINRA members, which in practice means registered broker-dealers. A stand-alone investment adviser is not a FINRA member: its records rule is Advisers Act Rule 204-2, walked through in our Rule 204-2 guide. The two rules use different periods and different storage terms, so never carry a broker-dealer period over to an adviser or the reverse.

A firm registered both ways keeps both sets of records. Rule 204-2 has one sentence that speaks to the overlap:

That sentence covers a record kept under Rules 17a-3 and 17a-4 that is substantially the same as the adviser record. Which of your records qualify, and which period then governs, is a question for your compliance counsel; the rule text does not list them. The wider program a member runs is mapped in FINRA compliance for broker-dealers.

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Rule 4511(a) says “make and preserve”. The making is in Exchange Act Rule 17a-3, which lists the records every registered broker-dealer must “make and keep current”. The full list runs to more than thirty paragraphs on eCFR. These are the ones a small introducing or retail firm meets first, with the Rule 17a-4 paragraph that sets each one's period.

Two paragraphs change the shape of the job for a small firm. Rule 17a-3(f) has some records kept office by office: the firm makes and keeps current, “as to each office”, the records in paragraphs (a)(1), (6), (7), (12), (17), (a)(18)(i) and (a)(19) through (22). And Rule 17a-3(c) lets a firm that introduces accounts on a fully disclosed basis skip records of transactions its clearing firm already makes and keeps, while saying plainly that it does not relieve the introducing firm “from the responsibility that such books and records be accurately maintained and preserved”.

The books and records checklist turns the 17a-3 list into rows you can tick for your own firm, and prints.

Every period a broker-dealer meets on its core records is in the table below. It is drawn from the same data as our retention calculator, record class for record class, so the two always say the same thing. Filter it to see which rules name the event a period runs from and which do not.

The gap the filter shows is real. Rule 17a-4(a) and (b), FINRA Rule 3110(b)(6) and Rule 4511(b) state a length and, for the first three, a two-year “easily accessible” window, but none of them says what date the period runs from. Do not assume one. Write your firm's counting method into its procedures and agree it with your compliance counsel, and when you use the retention calculator for these classes, it counts from the date you enter and says so beside the result.

Read the paragraph narrowly. It reaches FINRA books and records, and only those with no period anywhere in the FINRA rules or the Exchange Act rules. By its own words, then, a record that Rule 17a-4 or a FINRA rule already dates is not a 4511(b) record. Before applying it, check the record against four questions in order.

1. 01
   Does the FINRA rule that created the record set a period?

   Use it. Rule 3110 sets periods for supervisory designations and inspection reports; Rule 4512.01 for account information.

2. 02
   Does the FINRA rule send you to Rule 17a-4?

   Use the 17a-4 period it names. Rule 3110.09 and Rule 2210(b)(4) both point communications to 17a-4(b).

3. 03
   Does Rule 17a-4 itself list the record?

   Use the 17a-4 paragraph: (a), (b), (c), (d) or one of the (e) items.

4. 04
   None of the above?

   Rule 4511(b) applies: at least six years.

In a small firm the six-year default tends to catch the odd document that a FINRA rule asks for but no rule dates. When you cannot tell whether a period exists elsewhere, settle it with your compliance counsel and write the answer into your procedures, so the next person keeping the file does not have to guess. Supervision records sit under Rule 3110, and communications under Rule 2210.

This is the paragraph that matters most when a firm buys software. FINRA does not write its own storage standard; it takes the SEC's. A FINRA record kept electronically, from a supervisory designation to a 4512 account update, has to sit in a system that meets Rule 17a-4(f). Since the SEC's 2022 amendments (“Effective date: January 3, 2023”, compliance date May 3, 2023) that rule offers two ways to do it.

Either mode satisfies paragraph (f)(2)(i). The system must still meet the rest of (f)(2), including automatic verification, download in a human readable and a reasonably usable electronic format, and a backup or other redundancy, and the firm files an undertaking with its designated examining authority, signed by a designated executive officer or a designated third party. Where an outside service owns and operates the servers, it files a written undertaking with the Commission that the records “are the property of” the firm and “will be surrendered promptly on request”. The modes, the undertaking and the questions to put to a vendor are set out in SEC Rule 17a-4 and WORM storage, and the full rule is on eCFR.

Rule 4512 is FINRA's own list of what goes into each customer account record. It sits beside 17a-3(a)(17), which covers natural-person accounts, and its supplementary material warns that members “may be required to make and preserve additional customer account records” under the Exchange Act rules.

The trusted contact line carries its own conditions. The rule's supplementary material has the firm disclose in writing at account opening that it may contact that person “to address possible financial exploitation”, and it says a missing name “shall not prevent” opening or keeping an account, “provided that the member makes reasonable efforts” to get one. An account opened under an earlier FINRA rule need not meet 4512 “until such time as the member updates the information for the account”.

An “institutional account”, exempt from the trusted contact and the (a)(2) items, is defined in Rule 4512(c): a bank, savings and loan, insurance company or registered investment company; an SEC- or state-registered investment adviser; or “any other person (whether a natural person, corporation, partnership, trust or otherwise) with total assets of at least $50 million.”

So an account record is never a single document with one clock. Every superseded version starts its own six years on the day it is replaced, and the version standing when the account closes runs six years from the closing. Rule 17a-4(e)(5) sets the same six years for natural-person account information and Reg BI records, counted from “the earlier of the date the account was closed or the date on which the information was collected, provided, replaced, or updated”.

A broker-dealer of a few people does not need a records department, but it does need the records to be findable and complete on the day someone asks. Rule 4511(a) puts the making and the preserving on the member itself. The steps below are a workable order, each tied to the rule that asks for it.

This is a map of the rule text, not legal advice. Before you set retention locks or destroy anything, check the plan with your compliance counsel; a lock set shorter than the rule's period leaves a record erasable while the rule still requires it.