Do I Need an FFL to Sell Guns or Ammo Online?

Do I need an FFL to sell guns or ammo online? It’s usually the first question people ask when they start planning an online gun or ammo store, and the answer depends on what you sell and how you sell it. If you plan to be in the business of dealing in firearms, federal law requires a federal firearms license (FFL) before you start. Selling ammunition only is treated differently under federal law, but state rules can still apply. This post walks through what the federal rules say so you can have a better conversation with ATF, your state, and a firearms attorney.

This is the first post in our getting-started series on selling firearms and ammo online. It’s general education, not legal advice. Your facts matter, so confirm your own situation with ATF and a lawyer who knows firearms law.

What federal law says about dealing in firearms

The federal licensing statute, 18 U.S.C. 923(a), says no person shall “engage in the business of importing, manufacturing, or dealing in firearms, or importing or manufacturing ammunition” until they have applied for and received a license.

ATF’s regulation says the same thing in a slightly different way. Under 27 CFR 478.41(a), each person “intending to engage in business as an importer or manufacturer of firearms or ammunition, or a dealer in firearms shall, before commencing such business, obtain the license.” Note the timing. The license comes first and the sales come after.

The same section also says a license must be obtained “for each business and each place at which the applicant is to do business,” with limited exceptions. An online store doesn’t change that. The license is tied to a business and a location, even if most of your customers find you through a website.

What “engaged in the business” means

Not everyone who sells a gun is a dealer. The statute defines a dealer who is “engaged in the business” as a person who “devotes 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 definition is in 18 U.S.C. 921(a)(21)(C).

The same definition leaves out a person who makes occasional sales, exchanges, or purchases to improve a personal collection or for a hobby, or who sells all or part of a personal collection.

That’s the line in the statute. Two practical points follow from it:

• There’s no safe number. You’ll see claims online that you can sell a certain number of guns a year without a license. Federal law doesn’t set one. The question is whether your activity fits the definition above.
• An online store is built for repeat sales. If you’re setting up a website, buying inventory, and reselling it for profit, you’re describing a business. That’s exactly the kind of setup where you should plan on getting licensed first and ask a lawyer if you’re unsure.

What happened to the 2024 “engaged in the business” rule

In 2024, ATF published a rule that added a new section, 27 CFR 478.13, with presumptions about when someone is engaged in the business. That rule has been vacated nationwide. In Texas v. ATF (N.D. Tex. No. 2:24-cv-089-Z), the court’s final judgment on June 12, 2026 said the defendants “may not apply the Final Rule to anyone.” The Justice Department filed a notice of appeal on October 9, 2026.

You may still see §478.13 printed in the online eCFR. Don’t read that text as current law while the vacatur stands. The statute’s definition above still applies. For more detail on the case and the appeal, see our post on the status of ATF’s “engaged in the business” rule. Because this case is on appeal, check its status before you rely on it.

Do you need an FFL to sell ammo online?

Look closely at the federal licensing language again. Section 923(a) covers dealing in firearms, and importing or manufacturing ammunition. Section 478.41(a) covers importers and manufacturers of firearms or ammunition, and dealers in firearms. Dealing in ammunition alone isn’t on either list. ATF’s Federal Firearms Licenses page addresses ammunition-only dealing directly, so read it there before you plan around it.

If you make or import ammunition, that’s different. Manufacturing and importing ammunition are licensed activities under the same statute and rule.

Selling ammo without a federal license doesn’t mean selling it without rules. Some states regulate ammunition sellers directly. New York, for example, requires ammunition sellers to register under N.Y. Penal Law §400.03. Other states restrict who can buy ammo or how it can be delivered. We’ve covered some of this in shipping ammo to California and New York. Check the rules in your state and in every state you plan to ship to.

Federal age limits still apply to licensees

Once you’re licensed, federal law limits who you can sell to. Under 18 U.S.C. 922(b)(1), a licensee may not sell or deliver any firearm or ammunition to someone the licensee knows or has reasonable cause to believe is under 18. For handguns and handgun ammunition, the age is 21. A recent DOJ opinion has raised questions about the under-21 handgun limit. We covered that in under-21 handgun sales after DOJ’s opinion.

Which license type fits an online store?

ATF issues several types of licenses. Its Apply for a License page lists types 01, 02, 03, 06, 07, 08, 09, 10 and 11. ATF’s license types fact sheet describes each one. As ATF describes them, the ones online sellers most often ask about are:

• Type 01, dealer in firearms.
• Type 02, pawnbroker.
• Type 06, manufacturer of ammunition.
• Type 07, manufacturer of firearms.
• Type 08, importer.

Types 09, 10 and 11 cover destructive devices, and Type 03 is the curio and relic collector license. A collector license is not a dealer license. Read ATF’s descriptions and ask ATF which type matches your plan. Our next post covers how to apply, including forms, fees, zoning, and timing.

Questions to bring to ATF or your lawyer

Before you build the store, write down answers to these:

1. Will I buy firearms to resell them for profit on a regular basis?
2. Will I sell firearms, ammunition, or both?
3. Will I make or import anything, or only resell?
4. Where will the business be located, and does local zoning allow it?
5. Which states will I sell into, and do any of them regulate ammo or gun sellers?

Your answers point to the license you need, if any, and the state rules you’ll have to plan for.

What this means for your checkout

Licensing is step one. Once you’re selling firearms online, your checkout has to send each firearm to a receiving FFL instead of the buyer’s door, and that’s where the store build starts to matter. We’ll cover how dealer selection at checkout works later in this series.

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This article is general information, not legal advice. Laws and court cases change. Confirm your situation with ATF, your state, and a firearms attorney.