FFL recordkeeping requirements center on four things: a running acquisition and disposition log of every firearm in inventory, a completed ATF Form 4473 for every non-licensee transfer, documentation of the NICS background check result, and specific reports to ATF when certain events happen. All of it has to be kept until the business closes, and most of it is subject to inspection at least once a year.
The Acquisition and Disposition Record
The A&D record, still called the “bound book” even when it lives in software, is the spine of FFL compliance. Under 27 CFR 478.125, every licensee logs each firearm that enters or leaves business inventory.1eCFR. 27 CFR 478.125 – Record of Receipt and Disposition
An acquisition entry records the manufacturer or importer, model, serial number, firearm type, and caliber or gauge. It must be completed no later than the close of the next business day after the firearm is received. A disposition entry — sale, transfer to another dealer, return to the manufacturer, or any other way a firearm leaves the shop — records the date and either the recipient’s name and address or, if the recipient is licensed, their FFL number.
Entries must be legible and accurate enough that an investigator can trace a firearm years later. A gap between what sits on the rack and what the book says is one of the most serious findings in an ATF inspection, because a missing firearm with no paper trail is the exact scenario the tracing system was built to prevent.
ATF Form 4473 for Every Non-Licensee Transfer
Before transferring a firearm to anyone who is not a licensee, the dealer completes ATF Form 4473, the Firearms Transaction Record. The buyer fills out their section first with full legal name, residence address, date of birth, and place of birth. Social Security number is optional; providing it reduces the risk of a misidentified match during the background check, but the buyer can decline.2Bureau of Alcohol, Tobacco, Firearms and Explosives. Firearms Questions and Answers The dealer verifies identity with a valid government-issued photo ID showing the buyer’s name, address, and date of birth.3Bureau of Alcohol, Tobacco, Firearms and Explosives. ATF Form 4473 – Firearms Transaction Record
Form 4473 errors are the single most common citation during compliance inspections. Missing signatures, wrong dates, incomplete answers, boxes left blank. If a dealer finds an error after the transfer is complete, the original form cannot be altered. The correct fix is to photocopy the page with the error, write the correction on the copy, initial and date it, and attach it to the original. Buyers and dealers may only correct the portions of the form they originally completed.4Bureau of Alcohol, Tobacco, Firearms and Explosives. Federal Firearms Licensee Quick Reference and Best Practices Guide
Documenting the NICS Response
After the buyer completes their portion of the 4473, the dealer contacts the National Instant Criminal Background Check System. NICS returns one of three responses: proceed, denied, or delayed.3Bureau of Alcohol, Tobacco, Firearms and Explosives. ATF Form 4473 – Firearms Transaction Record
Proceed means the sale can go forward. Denied means it cannot. Delayed is the response that requires judgment. Federal law allows the dealer to complete the transfer if three business days pass after the NICS check with no denial, though the dealer is not required to and many wait for a definitive answer. For buyers under 21, if NICS flags a potentially disqualifying juvenile record, the wait extends to 10 business days before the dealer may proceed.5Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts
The NICS transaction number and the system’s response go on the 4473. If the response was delayed and the dealer proceeded after the waiting period, that decision and the transfer date are documented on the form as well.
Reports That Must Go to ATF
Some events trigger reporting beyond the shop’s own records.
Multiple Handgun Sales
When one buyer purchases two or more handguns within five consecutive business days, the dealer files ATF Form 3310.4. One copy goes to the ATF National Tracing Center by close of business on the day the multiple sale occurs, and another goes to local law enforcement.6Bureau of Alcohol, Tobacco, Firearms and Explosives. Reporting Multiple Firearms Sales or Other Dispositions
Theft or Loss
If a firearm is stolen or lost from inventory, the dealer reports it within 48 hours of discovery by calling ATF at 1-888-930-9275 and by submitting ATF Form 3310.11. Local law enforcement must also be notified. If the firearm was lost in transit through a carrier, including the U.S. Postal Service, the sending dealer is responsible for the report. The theft or loss must also be entered as a disposition in the A&D record within seven days of discovery.7Bureau of Alcohol, Tobacco, Firearms and Explosives. 27 CFR 478.39a – Reporting Theft or Loss of Firearms For NFA-registered firearms, the same Form 3310.11 satisfies the notification requirement; no separate NFA-specific report is needed.
How Long Records Must Be Kept
The retention rule surprises new licensees: records are not kept for a set number of years and then discarded. They are kept until the business ends. Under 27 CFR 478.129, Form 4473s must be retained until the licensee discontinues business or licensed activity. Paper forms older than 20 years may be moved to a separate warehouse for storage, but that warehouse counts as part of the business premises and remains subject to ATF inspection.8eCFR. 27 CFR 478.129 – Record Retention
A&D records follow the same rule. Paper A&D records with no open entries and no dispositions recorded in the past 20 years may be moved to separate warehouse storage, but they cannot be destroyed while the license is active.8eCFR. 27 CFR 478.129 – Record Retention
When a licensee closes for good, all records must be delivered to the ATF Out-of-Business Records Center within 30 days of discontinuance, or to any ATF office in the division where the business was located.9Bureau of Alcohol, Tobacco, Firearms and Explosives. 27 CFR 478.127 – Discontinuance of Business Dealers cannot destroy their records or keep them in private storage after closing.
Electronic A&D Records
Most dealers now use software. ATF Ruling 2016-1 permits electronic A&D records but imposes strict technical requirements.10Bureau of Alcohol, Tobacco, Firearms and Explosives. ATF Ruling 2016-1 The system must create a permanent audit trail so any correction preserves the original entry alongside the new one. Records must be backed up at least daily, and if the database is hosted on a remote or cloud server, the dealer must also download records to a physical storage device at the business premises at least daily. ATF can request a full download at any time, and the dealer must provide it within 24 hours.
The system must support searches by serial number, acquisition date, manufacturer, purchaser name, purchaser address, and Form 4473 transaction number. During an inspection, records have to be available to the investigator in a searchable format or printable on request.
Electronic Storage of Form 4473
ATF Ruling 2022-01 separately authorizes electronic retention of completed Forms 4473, with its own conditions. Before implementing an electronic 4473 system, the dealer must give written notice to their local ATF Industry Operations Area Office at least 60 days in advance.11Bureau of Alcohol, Tobacco, Firearms and Explosives. ATF Ruling 2022-01 – Electronic Storage of Forms 4473
The original electronic 4473 must be saved in an unalterable format. It cannot be deleted, amended, or replaced; corrections go on a copy that is electronically attached to the original. The dealer must provide ATF with read-only access to the database, and the system must allow simultaneous viewing of a Form 4473 and its corresponding A&D record. Dealers processing higher volumes must provide at least one computer terminal per 500 forms executed in the previous 12 months, up to a maximum of five terminals.
Paper Forms 4473 more than three years old from the date of transfer may be scanned and stored digitally. The scanned image must be exact, must include all pages and attachments, and must not be capable of alteration without tracking. Paper originals can be destroyed only after the electronic version has been verified as complete and correct.11Bureau of Alcohol, Tobacco, Firearms and Explosives. ATF Ruling 2022-01 – Electronic Storage of Forms 4473
Sales From a Personal Collection
An FFL’s personal firearms and business inventory are separate, but the line between them requires paperwork. A licensed dealer, manufacturer, or importer may sell a firearm from their personal collection without completing a Form 4473 or running a NICS check, but only if the firearm has been held in the personal collection for at least one year after being transferred out of business inventory or otherwise acquired as a personal firearm.12Bureau of Alcohol, Tobacco, Firearms and Explosives. 27 CFR 478.125a – Personal Firearms Collection
Even with the exemption, the dealer keeps a separate bound record of the personal-collection sale showing the manufacturer, model, serial number, type, caliber, date of sale, and the buyer’s name, address, and date of birth. The transfer from business inventory into the personal collection must have been recorded as a disposition in the A&D book at the time it happened. Moving a firearm to a personal safe without logging the disposition breaks the paper trail and creates the kind of discrepancy investigators flag.
NFA Items: Extra Records on Top
Dealers with a Special Occupational Tax classification who handle National Firearms Act items (suppressors, short-barreled rifles, machine guns, and similar regulated firearms) carry additional duties beyond the standard GCA recordkeeping. Anyone possessing an NFA-registered firearm must retain proof of registration and produce it on request from any ATF officer.4Bureau of Alcohol, Tobacco, Firearms and Explosives. Federal Firearms Licensee Quick Reference and Best Practices Guide
Proof of registration means the specific ATF form under which the item was registered: Form 1 for items the licensee made, Form 2 for items registered to a manufacturer or importer, or Forms 3, 4, or 5 for transfers. These documents are maintained in chronological order at the business premises. NFA dealers also keep standard A&D records for these items under the same GCA regulations that apply to all other firearms.
Inspections and Willful Violations
Federal law limits routine compliance inspections to no more than once in any 12-month period. Inspections tied to a specific criminal investigation or a trace request can happen at any time and do not count against that limit.13Office of the Law Revision Counsel. 18 USC 923 – Licensing
A typical inspection begins with a wall-to-wall inventory match against the A&D record, then a sample review of completed 4473s for missing signatures, wrong dates, incomplete buyer information, and NICS responses that should have blocked a transfer. Findings are discussed at a closing conference. Not every error leads to formal action; ATF distinguishes between inadvertent mistakes and willful violations.
Federal courts define a willful violation as one committed with intentional disregard of a known legal duty or plain indifference to legal obligations. A single willful violation is enough for ATF to revoke a license.14Bureau of Alcohol, Tobacco, Firearms and Explosives. Revocation of Firearms Licenses Absent extraordinary circumstances, ATF will move to revoke for:
- Transferring a firearm to a prohibited person.
- Completing a transfer without contacting NICS.
- Falsifying a Form 4473 or A&D entry.
- Refusing an ATF inspection.
- Failing to respond to a trace request.
Other willful violations that may lead to revocation include failing to account for firearms in inventory, not verifying buyer eligibility, not maintaining records necessary for successful tracing, and not filing required multiple-sale reports.
Honest administrative mistakes that do not recur and do not threaten public safety are typically addressed through corrective measures rather than revocation. The difference between a warning letter and a revocation hearing often comes down to whether the dealer knew the rules, had been told about the problem before, and failed to fix it. Repeated violations of the same type, even minor ones, start to look willful.