Six-Year Minimum Requirement
If FINRA, MSRB, or Exchange Act rules do not specify a time period for a specific book or record, it should be kept at least six years.
Records associated with blotters, ledgers, securities, and customer accounts must be retained for six years. These items may be defined as follows.
Blotters. These are daily records containing itemized reports of all purchases and sales of securities, receipts and deliveries of certificates, receipts and disbursements of cash, and all other debits and credits.
General ledger. This ledger includes re