‘Engaged in the Business’: ATF Rule, Presumptions, Penalties

Under federal law, you are “engaged in the business” as a firearms dealer — and therefore required to hold a Federal Firearms License — if you devote time, attention, and labor to dealing in firearms as a regular course of trade or business to predominantly earn a profit through the repetitive purchase and resale of firearms. That test comes from 18 U.S.C. § 921(a)(21)(C), as rewritten by the Bipartisan Safer Communities Act in 2022. It no longer matters whether gun sales are how you pay your rent. What matters is whether your pattern of buying and reselling is driven by profit.¹

How the 2022 Statutory Change Lowered the Bar

Before 2022, the statute defined a dealer as someone whose “principal objective” in dealing firearms was “livelihood and profit.” Courts read “livelihood” to mean the seller had to depend on gun sales to cover basic living expenses. A person who moved 50 guns a year on the side but held a day job often fell outside the definition, because the sales did not support their livelihood.¹

The Bipartisan Safer Communities Act deleted “livelihood.” The updated definition asks only whether the person’s predominant purpose in the repetitive buying and reselling is profit. Under the new text, the seller with a day job who flips guns for profit on the side can qualify as a dealer even if firearm sales are a small share of total income.¹

What Still Counts as a Personal Collection

The same paragraph that defines a dealer also carves out conduct that is not dealing. Selling all or part of a personal collection you built for personal use, hunting, sport, or historical interest does not require a license. Neither does selling one firearm to fund a different acquisition, or thinning a collection you have kept over time.¹

Estate transactions sit in the same protected space. Inheriting firearms and selling them, or liquidating a deceased relative’s guns, is not dealing. The transfer is reactive: you did not acquire the firearms to resell them, and the sale is tied to settling property.

Bona fide gifts fall outside the dealer definition as well. Federal regulations at 27 CFR § 478.13(e) provide that transferring a firearm as a gift does not support a presumption that the transferor is engaged in the business, and the same provision covers occasional transfers to a licensed dealer or to a family member for lawful purposes. Loans of a firearm to another person for temporary lawful sporting use — target shooting, trap, skeet — are also treated separately from dealing.²

The line between collector and dealer usually comes down to pattern and purpose. A collector who sells a rifle to buy a rarer one is on solid ground. A person who repeatedly buys popular models at wholesale and resells them within weeks is building a case against themselves regardless of how they describe the activity.

The 2024 ATF Presumptions and Where They Stand

In April 2024, the ATF published a final rule at 27 CFR § 478.13 that added rebuttable presumptions meant to identify unlicensed dealers. The presumptions apply in civil and administrative proceedings, and a person can present evidence to overcome them. They gave concrete shape to the statutory language by listing conduct that, absent reliable contrary evidence, supports a finding of unlicensed dealing.²

The most concrete presumption is about timing. Repetitively reselling or offering firearms for resale within 30 days of purchase triggers the presumption. A separate presumption applies to resales within one year when the firearms are new, in original packaging, or the same make and model.²

Other presumptions target conduct that reads as commercial rather than personal:

Holding yourself out as willing and able to source specific makes or models for buyers on request.
Repetitively buying for resale through straw purchasers or shell businesses, regardless of timing.
Letting an FFL lapse and continuing to resell firearms that had been in the business inventory.
Repetitively reselling stolen firearms, guns with obliterated serial numbers, or illegally imported weapons, which also violate other federal laws independently.

How a seller presents to the public factored in as well: business cards, dedicated websites, formal advertising, and recurring gun-show table rentals. The rule explicitly reached sales over the internet, on social media, and through online auction platforms when the “predominantly earn a profit” standard is met.²

These presumptions are not currently being enforced in the way the ATF originally intended. In June 2024, the Northern District of Texas granted a preliminary injunction in a multistate case (Case No. 2:24-CV-089-Z) blocking enforcement against the named plaintiffs: Texas, Louisiana, Mississippi, Utah, one individual, and four advocacy organizations. The injunction is not nationwide, but it protects those parties.³

In September 2025, the Northern District of Alabama granted summary judgment to a separate plaintiff, finding that the ATF exceeded its statutory authority and improperly expanded “engaged in the business” beyond the text Congress enacted. The current administration abandoned its appeal of the Texas injunction, and in May 2026 the ATF published a proposed rulemaking to revise the “engaged in the business” regulations.⁴

One point deserves emphasis, because it is easy to misread the litigation. What the courts blocked was the ATF’s regulatory interpretation. The underlying statute — the “predominantly earn a profit” language in 18 U.S.C. § 921 — has not been challenged in these cases and remains federal law. Federal prosecutors can still charge unlicensed dealing under the updated statutory test. They just cannot lean on the specific 2024 regulatory triggers against the parties covered by the injunctions.⁴

Penalties for Dealing Without a License

Unlicensed dealing is a federal felony. Under 18 U.S.C. § 924(a), a willful violation of the licensing requirement carries up to five years in federal prison, a fine, or both. Firearms involved in a knowing or willful violation are subject to seizure and forfeiture.⁵

The collateral consequences are just as serious. A conviction makes the person a prohibited possessor, unable to legally own firearms going forward. And because unlicensed dealing means no background checks were run on the buyers, a seller who transferred firearms to prohibited buyers can face additional charges for each of those transactions.⁵

How to Read Your Own Situation

Because the 2024 regulatory presumptions are in flux, the safest place to stand is the statute itself. Ask two questions. First, is your buying and reselling of firearms repetitive, or is it a set of one-off events tied to your personal collection? Second, is profit your predominant reason for the pattern, or is the money incidental to hobby, collection maintenance, or estate matters?

If the answers are “repetitive” and “profit,” you meet the federal definition and need an FFL before your next commercial sale, whether or not any particular regulatory presumption is currently enforceable against you. If the answers are “occasional” and “personal,” the statute’s collector carve-out is doing real work for you. The murky middle — frequent sales you tell yourself are just collection turnover, or a “hobby” that pays for itself and then some — is exactly where the 2022 statutory change was aimed. The old “livelihood” defense is gone, and no court decision has brought it back.

1
Office of the Law Revision Counsel. 18 USC 921 – Definitions
2
eCFR. 27 CFR 478.13 – Definition of Engaged in the Business as a Dealer in Firearms Other Than a Gunsmith or a Pawnbroker
3
Justia Law. State of Texas et al v. Bureau of Alcohol Tobacco Firearms and Explosives et al
4
Federal Register. Revising Regulations Defining Engaged in the Business as a Dealer in Firearms
5
Office of the Law Revision Counsel. 18 USC 924 – Penalties