Yes, you need a tax stamp for a suppressor, but the federal transfer tax is now $0. The paperwork, background check, fingerprints, photograph, and ATF approval through Form 4 are all still mandatory before you can take the suppressor home. What changed is the dollar amount: the statute that used to charge $200 per transfer now sets the rate at $0 for suppressors and most other National Firearms Act items, with machine guns and destructive devices as the exceptions.1Office of the Law Revision Counsel. 26 U.S.C. 5811 – Transfer Tax
What a Tax Stamp Actually Is
The “tax stamp” is the ATF’s approval of your Form 4 application to register a specific suppressor to you. The name is a holdover: it originally referred to the physical stamp the ATF affixed to an approved Form 4 as proof the transfer tax had been paid. Even with the tax set at zero, the registration process still runs the same way. The National Firearms Act defines “firearm” to include silencers (the legal term for suppressors), and every NFA firearm must be entered in the National Firearms Registration and Transfer Record maintained by the ATF.2Office of the Law Revision Counsel. 26 U.S.C. 5845 – Definitions3Office of the Law Revision Counsel. 26 U.S.C. 5841 – Registration of Firearms Possessing an unregistered suppressor is a federal felony, so the stamp isn’t optional.
You will still hear buyers and dealers talk about “the $200 tax stamp” out of habit. Right now, the federal cost is zero. The paperwork, waiting period, and approval are what you’re really getting through.
How to Get the Stamp
The process has more steps than a standard firearm purchase, but the sequence is predictable.
Buy Through a Licensed Dealer
Suppressors are sold through dealers who hold both a Federal Firearms License and a Special Occupational Tax designation, sometimes called Class 3 dealers. You pay the dealer, but the suppressor stays in their inventory until the ATF approves your paperwork. Online retailers can also sell to you, shipping the suppressor to a local FFL/SOT dealer who handles the transfer.
File ATF Form 4
The application for the stamp is ATF Form 4, Application for Tax Paid Transfer and Registration of a Firearm. You can file it electronically through the ATF eForms system or on paper, and electronic filing is faster with fewer rejected submissions.4Bureau of Alcohol, Tobacco, Firearms and Explosives. eForms Applications The application requires your personal information, a passport-style photo, and fingerprints. Fingerprints can be submitted as traditional FD-258 ink cards or as a digital .EFT file, and the digital version is reusable on future applications.
To buy from a dealer, you must be at least 21, a U.S. resident, and legally eligible to possess firearms. The minimum age drops to 18 for a private transfer from an individual (not a dealer).
CLEO Notification
A copy of your application goes to the Chief Law Enforcement Officer in your jurisdiction. This is notice only. The CLEO cannot approve or deny your application; they just have to be told.
Wait, Then Pick Up
The ATF runs a background check and reviews the file. When it’s approved, the stamp comes back to the dealer with your completed Form 4. You go in, fill out a Form 4473 (the same background check form used for any firearm purchase from a licensed dealer), and take the suppressor home. Every suppressor needs its own Form 4 and its own stamp. Two suppressors means two applications.
How Long Approval Takes
Current ATF processing times for eForm 4 applications run roughly 10 days for individual applicants and 26 days for trust applicants.5Bureau of Alcohol, Tobacco, Firearms and Explosives. Current Processing Times Paper submissions take longer. These numbers move around, and the ATF updates median processing data every month, so check before you plan a purchase around a specific date.
Registering as an Individual, Trust, or Corporation
Form 4 asks how the suppressor will be registered: to you as an individual, to a gun trust, or to a corporation. The choice affects who can use it and how much paperwork you file.
- Individual registration is the simplest and usually the fastest. Only you can legally possess or transport the suppressor, and nobody else can use it unless you are physically present.
- A trust lets multiple trustees possess and use the suppressor independently, without the registered owner being present. That is the main reason people use trusts. The tradeoff is that every trustee and every other “responsible person” named in the trust must submit fingerprints, a photo, and pass a background check with each new Form 4. More responsible persons means longer processing.6Bureau of Alcohol, Tobacco, Firearms and Explosives. Background Checks for Responsible Persons (Final Rule 41F)
- A corporation works similarly to a trust. Officers listed on the corporation can possess the suppressor, and each one goes through the same background check and fingerprint requirements as trust responsible persons.
Trusts also help with estate planning. If the trust owner dies, the suppressor stays within the trust rather than moving through probate the way an individually registered item would.
Keeping and Using the Stamp After Approval
Federal law requires you to retain proof of registration and make it available to the ATF on request.3Office of the Law Revision Counsel. 26 U.S.C. 5841 – Registration of Firearms The statute doesn’t require you to carry the paperwork on your person, but the practical move is to keep a copy of your approved Form 4 with the suppressor whenever it leaves home. Keep the original somewhere safe and carry a photocopy or a photo on your phone. If a law enforcement officer wants to confirm the suppressor is legally registered, producing the paperwork on the spot avoids a much larger problem.
The stamp does not expire. Once your Form 4 is approved and the suppressor is registered to you, that registration is good for as long as you own it. There are no renewal fees and no periodic filings.
Interstate travel is allowed from one state where you may lawfully possess the suppressor to another state where you may lawfully possess it. The Firearm Owners Protection Act provides a safe-passage provision for transporting firearms between legal states, provided the firearm is unloaded and not readily accessible from the passenger compartment. In a vehicle without a separate trunk, the suppressor has to be in a locked container other than the glove compartment or center console.7Office of the Law Revision Counsel. 18 U.S.C. 926A – Interstate Transportation of Firearms FOPA protects travel through a restrictive state, not an extended stay. Overnight stops and side trips in a state that bans suppressors can cost you that federal protection and expose you to state-level charges.
When a New Stamp Is Required
Selling or giving a suppressor to another person requires a fresh Form 4 filed by the recipient, a new background check, and ATF approval before the suppressor changes hands.8Bureau of Alcohol, Tobacco, Firearms and Explosives. NFA Handbook – Transfers of NFA Firearms You cannot hand it over to a family member or a friend and let them walk away with it, and registering the suppressor through a trust does not let you skip this step. A trust lets people already named as trustees share the suppressor because the trust is the legal owner, but moving the item outside the trust, or over to a different trust, triggers a full Form 4.
Inheritance uses a different form. When a registered owner dies, the suppressor can transfer to a lawful heir using ATF Form 5, which is tax-exempt regardless of the type of NFA firearm involved.9Bureau of Alcohol, Tobacco, Firearms and Explosives. Application to Transfer and Register NFA Firearm Tax-Exempt (ATF Form 5) The heir still has to be legally eligible to possess firearms, still has to file the Form 5, and still has to wait for ATF approval. During probate, the executor or personal representative should coordinate with a licensed dealer or the ATF so the suppressor is handled properly in the meantime. If the intended heir lives in a state that bans suppressors, the item can’t be transferred to them there; it has to go to someone in a state where possession is legal, or be surrendered to the ATF.
States Where the Stamp Doesn’t Help You
Suppressors are legal to own in 42 states. The remaining eight ban private ownership entirely, and a federal tax stamp doesn’t override that. If you move to a state that bans suppressors, you can’t bring a registered suppressor with you; you would need to transfer it to someone in a legal state, store it with a dealer in a legal state, or surrender it. Some states that allow ownership add their own restrictions on top of federal law, so check your state’s rules before buying.
Penalties for Skipping the Stamp
Possessing a suppressor that isn’t registered to you in the National Firearms Registration and Transfer Record is a federal crime under 26 U.S.C. 5861, which also covers unlawful transfers, serial number tampering, and transporting an unregistered NFA firearm across state lines.10Office of the Law Revision Counsel. 26 U.S.C. 5861 – Prohibited Acts Conviction carries a fine of up to $10,000, a prison sentence of up to ten years, or both.11Office of the Law Revision Counsel. 26 U.S.C. 5871 – Penalties There is no grace period and no way to retroactively register a suppressor you already possess without proper authorization. If you find or inherit a suppressor with no paperwork, contact the ATF or a firearms attorney before doing anything with it.