Firearms Transfer Between Unlicensed Persons: FFLs and Penalties

Under federal law, a firearm transfer between unlicensed persons is legal without a dealer only when both people live in the same state, neither is a prohibited person, the buyer meets the applicable age requirement, and any additional state rules are followed. If the buyer lives in a different state, the transfer has to go through a Federal Firearms Licensee (FFL) in the buyer’s home state. Get the wrong piece of this wrong and you can be looking at up to 15 years in federal prison, so it’s worth walking through each step before money changes hands.

Same State or Different States

Start here, because the answer changes everything else. Federal law treats intrastate and interstate private transfers as fundamentally different transactions.

If both parties live in the same state, federal law does not require you to use an FFL, run a background check, or keep records. The ATF has no mechanism for private citizens to access the background check system on their own.¹ Whether your state adds requirements on top of that federal baseline is a separate question, addressed below.

If the seller and buyer live in different states, federal law prohibits an unlicensed person from transferring a firearm directly to another unlicensed person across state lines. The seller cannot hand the gun to the buyer, and the buyer cannot receive it outside their home state.² The transfer has to go through an FFL in the buyer’s state of residence. Typically the seller ships the firearm to that FFL, or meets the buyer at the FFL’s location, and the buyer completes a background check there before taking possession.³

One narrow exception exists for inheritance. If you lawfully inherit a firearm from someone in another state, through a will or intestate succession, you can transport it to your home state without routing it through an FFL, provided you are legally permitted to possess it there.²

Who You Cannot Legally Sell To

Regardless of whether an FFL is involved, federal law makes it illegal to sell or give a firearm to anyone you know or have reasonable cause to believe is a prohibited person.⁴ This is the single most important rule in a private sale. Violating it carries up to 15 years in federal prison.⁵

A person is federally prohibited from possessing or receiving firearms if they:

Have been convicted of a crime punishable by more than one year in prison
Are a fugitive from justice
Are an unlawful user of or addicted to a controlled substance
Have been adjudicated as mentally defective or committed to a mental institution
Are unlawfully in the United States
Have been dishonorably discharged from the Armed Forces
Have renounced U.S. citizenship
Are subject to a court order restraining them from harassing, stalking, or threatening an intimate partner or that partner’s child
Have been convicted of a misdemeanor crime of domestic violence

These categories come from 18 U.S.C. § 922(d) and (g).⁴ In a private sale you cannot verify most of them directly, which is exactly why the “reasonable cause to believe” standard does so much work. If anything about the buyer raises a red flag, decline the sale or route it through an FFL so a background check can settle the question.

Age Rules for Private Transfers

The federal age rules for private transfers are looser than most people assume. An unlicensed person cannot sell, deliver, or transfer a handgun or handgun-only ammunition to anyone they know or reasonably believe is under 18. For long guns (rifles and shotguns), there is no federal minimum age for private transfers at all.⁶

Those are federal floors. Transfers through an FFL are stricter: an FFL cannot sell a handgun to anyone under 21, or a long gun to anyone under 18. And many states set their own minimum ages for private transfers above the federal standard. Check your state’s rule before assuming a transfer to a younger buyer is lawful.

What Your State May Add on Top

Federal law sets a floor, not a ceiling. States take different approaches and the variations are significant.

Some states require universal background checks, meaning nearly all private transfers must run through an FFL where the buyer completes the same NICS check used for retail purchases. Other states use a permit-to-purchase system: the buyer must first obtain a license from a law enforcement agency, and the permit application itself involves a background check, so producing the permit at the time of transfer proves eligibility. Some of these regimes apply only to handguns rather than to all firearms. And a substantial number of states add nothing to federal law, meaning two residents can transfer directly with no paperwork required.

The gaps between these regimes matter. A transfer that is perfectly legal in one state can be a criminal offense across the state line. Verify your own state’s rules before proceeding.

Completing a Direct Transfer Between Two Residents

Where state law allows a direct transfer without an FFL, the process is simple but still calls for care. This is where most people get sloppy, and sloppiness is what creates exposure later.

Ask the buyer for a valid, government-issued photo ID. Confirm their name, date of birth, and current address. The ID does two jobs: it shows the buyer is old enough for the firearm being transferred, and it confirms they are a resident of your state. An out-of-state address means the transfer cannot proceed without an FFL.

Meet in a safe, public location. Many police department parking lots are used for private-party firearm transfers, and some agencies explicitly welcome the practice. The buyer can inspect the firearm, the seller can verify identification, and both parties can sign a bill of sale without pressure.

Federal law does not require any paperwork for an intrastate transfer, but creating a written record is one of the smartest things you can do to protect yourself. If the firearm is later recovered at a crime scene, law enforcement will trace it, and a bill of sale is your evidence that you lawfully transferred it to someone else.⁷ A workable bill of sale includes:

Full legal names and addresses of both parties
Date of the transfer
Firearm make, model, caliber or gauge, and serial number
A statement from the buyer that they are legally eligible to possess a firearm
A statement from the seller that they are the lawful owner
Signatures of both parties

Print two copies, sign both, keep yours indefinitely. If a question about the firearm surfaces years later, that document is the difference between a short conversation with investigators and a long one.

Going Through an FFL

An FFL is required for any interstate transfer, and required or optional in-state depending on your jurisdiction. Not every FFL offers private-party transfer services, so call ahead. Fees at independent gun stores typically run $25 to $50, some big-box retailers charge as little as $20, and specialty shops may charge more. States that impose their own processing fees will push the total higher. Both parties should bring valid government-issued photo ID.

At the FFL, the buyer fills out ATF Form 4473, the Firearms Transaction Record. The form collects personal information and asks the buyer to answer a series of questions about the prohibited categories. The buyer signs under penalty of perjury that the answers are truthful.⁸

The FFL then contacts the National Instant Criminal Background Check System (NICS) and gets one of three answers:

Proceed. The transfer can be completed immediately.
Denied. The FFL cannot transfer the firearm to this buyer.
Delayed. NICS needs more time. The FFL cannot transfer for at least three business days (not counting the day the check was initiated, weekends, or state holidays). If three business days pass without a final denial, the FFL may legally complete the transfer, though many dealers wait longer as store policy.

For buyers under 21, a special provision applies: if NICS notifies the FFL it needs to investigate a potentially disqualifying juvenile record, the waiting period extends to 10 business days. If the buyer picks up on a different day than they filled out the form, they must recertify that their answers are still accurate before taking possession.⁸

Shipping When You Can’t Meet in Person

When the parties cannot meet face to face, shipping enters the picture, and both federal law and private carrier policies apply.

An unlicensed person may mail rifles and shotguns through the U.S. Postal Service to a recipient in the same state, or to an FFL in another state. Handguns are subject to a longstanding federal prohibition on mailing concealable firearms through USPS, and the safest approach for handguns is to use a common carrier or ship directly to an FFL.

Private carriers add their own restrictions, which are often tighter than federal law. UPS accepts firearm shipments only from licensed importers, manufacturers, dealers, or collectors with an approved contractual agreement; unlicensed individuals cannot use standard UPS shipping to send firearms.⁹ FedEx maintains a similar policy. In practice, most private sellers who need to ship will either bring the firearm to a local FFL to ship on their behalf, or find a carrier that accepts shipments from unlicensed persons.

For any interstate transfer, the firearm has to be shipped to an FFL in the buyer’s state regardless of carrier. Shipping directly to an out-of-state individual who is not an FFL violates federal law.²

Two Ways Sellers Get Charged Even When the Buyer Looks Fine

Straw Purchases

A straw purchase happens when someone buys a firearm on behalf of another person while lying about who the real buyer is. It is illegal even if the actual end user could pass a background check. Federal law, strengthened by the Bipartisan Safer Communities Act of 2022, prohibits purchasing a firearm for, on behalf of, or at the request of another person when you know or have reasonable cause to believe that person is prohibited, intends to use the firearm in a felony, or intends to hand it off to someone who is prohibited or planning a crime.¹⁰

A straw purchase conviction carries up to 15 years in prison. If the purchase was made knowing the firearm would be used in a felony, a federal crime of terrorism, or a drug trafficking crime, the maximum jumps to 25 years.¹⁰ In a private-sale context, a seller who suspects the buyer is actually purchasing for someone else should walk away.

Occasional Selling That Crosses Into Dealing

Federal law separates a person who occasionally sells firearms from a personal collection from a person who is “engaged in the business” of dealing. Cross that line without a Federal Firearms License and you have committed a federal crime, even if every individual sale was otherwise legal.

The statutory standard defines dealing as devoting time, attention, and labor to buying and reselling firearms as a regular course of business, with the predominant intent to earn a profit through repetitive purchases and resales. You do not need a license if you only make occasional sales to enhance a personal collection, or if you are liquidating a collection without restocking it.¹¹

Under ATF guidance, a “personal collection” means firearms accumulated for study, comparison, exhibition, or hobby use like hunting, competition shooting, or historical reenactment. It does not include firearms bought primarily for resale at a profit. Firearms acquired mainly for personal protection are treated separately, though isolated sales of protection firearms do not automatically require a license.¹¹ Anyone who regularly buys and resells firearms for profit should consult an attorney or apply for an FFL rather than assume they fall under the occasional-sale exemption.

Penalties for Getting It Wrong

The numbers are higher than most sellers expect. Transferring a firearm to someone you know or reasonably believe is a prohibited person carries up to 15 years in federal prison.⁵ Knowingly transferring a firearm to someone whose use or possession would constitute a felony also carries up to 15 years.³ Willfully violating the interstate transfer prohibitions can bring up to five years. Transferring a handgun to someone you know is under 18 is punishable by up to one year, rising to 10 years if you knew the juvenile intended to use it in a violent crime.

A federal firearms conviction is self-reinforcing. Because the offense itself is punishable by more than one year in prison, the convicted seller becomes a prohibited person who can never legally possess a firearm again.

State penalties vary widely. In states requiring background checks for private sales, completing a transfer without one can range from a misdemeanor to a felony. Civil exposure is also possible. Under negligent entrustment, a seller who transfers a firearm to someone who foreseeably misuses it can face a civil suit from the victim, separate from any criminal charges. Courts have found sellers liable when warning signs about the buyer were present and ignored.

A Note on Antique Firearms

The rules above do not reach every gun. Firearms manufactured in or before 1898 are classified as “antique firearms” under federal law and are excluded from the Gun Control Act’s definition of “firearm” entirely. The exemption also covers replicas of pre-1899 firearms not designed to use modern rimfire or centerfire ammunition, and muzzle-loading rifles, shotguns, and pistols designed for black powder that cannot accept fixed ammunition.¹²

Because antique firearms fall outside the GCA, the federal transfer restrictions discussed above do not apply. They can be sold across state lines without an FFL, and the federal prohibited-person restrictions technically do not cover them. State law may still regulate antique firearms, so check your local rules before assuming the federal exemption is the whole picture.

1
Bureau of Alcohol, Tobacco, Firearms and Explosives. Federal Firearms Licensee Quick Reference and Best Practices Guide
2
Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts
3
Congress.gov. Gun Control – Straw Purchase and Gun Trafficking Provisions in P.L. 117-159
4
Bureau of Alcohol, Tobacco, Firearms and Explosives. Identify Prohibited Persons
5
Office of the Law Revision Counsel. 18 USC 924 – Penalties
6
Bureau of Alcohol, Tobacco, Firearms and Explosives. Minimum Age for Gun Sales and Transfers
7
Bureau of Alcohol, Tobacco, Firearms and Explosives. National Tracing Center
8
Bureau of Alcohol, Tobacco, Firearms and Explosives. ATF Form 4473 – Firearms Transaction Record
9
UPS. How to Ship Firearms
10
Office of the Law Revision Counsel. 18 USC 932 – Straw Purchasing of Firearms
11
Bureau of Alcohol, Tobacco, Firearms and Explosives. Do I Need a License to Buy and Sell Firearms
12
Office of the Law Revision Counsel. 18 USC 921 – Definitions