What Is the NFRTR? Registration, Taxes, and Trust Transfers

The National Firearms Registration and Transfer Record, known as the NFRTR, is the federal government’s central database of every privately held firearm regulated under the National Firearms Act. The Bureau of Alcohol, Tobacco, Firearms and Explosives maintains it, and the registry tracks who legally possesses each item, when it was registered, and its identifying details.1Office of the Law Revision Counsel. 26 USC 5841 – Registration of Firearms If you own or plan to acquire a suppressor, short-barreled rifle, machine gun, or any other NFA item, your name must appear in this registry before you can lawfully possess it. Possessing an unregistered NFA firearm is a federal felony carrying up to ten years in prison and fines as high as $250,000.2Bureau of Alcohol, Tobacco, Firearms and Explosives. NFA Handbook – Chapter 15 – Penalties and Sanctions

What Has to Be Registered

Federal law defines eight categories of “firearms” that must appear in the NFRTR. The definitions have specific measurement thresholds, and a barrel even a fraction of an inch too short can turn an ordinary rifle into an NFA item.3Office of the Law Revision Counsel. 26 USC 5845 – Definitions The main categories are:

  • Machine guns, meaning any weapon that fires more than one shot with a single trigger pull, including frames, receivers, and conversion parts.
  • Short-barreled rifles, with a barrel under 16 inches or an overall length under 26 inches.
  • Short-barreled shotguns, with a barrel under 18 inches or an overall length under 26 inches.
  • Silencers, sometimes called suppressors, regardless of size or noise-reduction level.
  • Destructive devices, including explosives, incendiaries, poison gas devices, and firearms with a bore diameter greater than half an inch (with exceptions for sporting shotguns).
  • “Any other weapons,” a catch-all covering items like firearms disguised as everyday objects and smooth-bore pistols designed to fire shotgun shells.

One category is closed. Since May 19, 1986, federal law has prohibited civilians from acquiring any machine gun that was not already lawfully registered before that date.4Office of the Law Revision Counsel. 18 USC 922(o) – Unlawful Acts You cannot manufacture a new machine gun for personal use, and no amount of paperwork will get a post-1986 machine gun into the NFRTR. The restriction is specific to machine guns; suppressors, short-barreled rifles, and other NFA items can still be newly made and registered.

One more baseline: a firearm cannot be registered unless it carries a proper serial number. An NFA item lacking the required serial identification is ineligible for the registry and is contraband by default.5eCFR. 27 CFR 479.101 – Registration of Firearms

Who Cannot Register

Even with perfect paperwork, some people are barred from possessing any firearm, NFA items included. Federal law disqualifies:6Bureau of Alcohol, Tobacco, Firearms and Explosives. Identify Prohibited Persons

  • Anyone convicted of a crime punishable by more than one year in prison
  • Fugitives from justice
  • Unlawful users of, or those addicted to, controlled substances
  • Anyone adjudicated as mentally defective or committed to a mental institution
  • Undocumented immigrants
  • Anyone dishonorably discharged from the military
  • Anyone who has renounced U.S. citizenship
  • Anyone subject to a domestic restraining order involving an intimate partner or their child
  • Anyone convicted of a misdemeanor crime of domestic violence

A person under indictment for a felony-level offense is also barred from receiving firearms or ammunition while the indictment is pending. The FBI background check run during the NFA process catches most disqualifiers, but filing an application while prohibited is itself a federal offense.

How Registration Works

Registration runs through ATF paperwork that captures identifying details for both the item and the applicant. For the firearm, you provide the manufacturer, model, caliber or gauge, serial number, barrel length, and overall length. For yourself, you provide two passport-style photographs and two sets of fingerprints on FBI Form FD-258 cards.

You must also notify your local Chief Law Enforcement Officer by sending a copy of your completed application. Since a 2016 rule change, no CLEO signature or approval is required; you simply mail the copy to the highest-ranking law enforcement official in your jurisdiction, such as the chief of police or county sheriff.7Bureau of Alcohol, Tobacco, Firearms and Explosives. National Firearms Act (NFA) Responsible Person Questionnaire – ATF Form 5320.23

Which ATF form you file depends on the transaction:

  • Form 4, when an existing NFA item is being transferred to you from another owner or dealer.
  • Form 1, when you intend to make an NFA item yourself, such as building a short-barreled rifle from an existing rifle.
  • Form 5, for tax-exempt transfers, primarily inheritance.

You can submit through the ATF’s eForms portal or by mailing paper forms to the NFA Division. Electronic filing is faster in practice and accepts credit card payment; paper filings require a check or money order. Once ATF receives the application, the FBI runs a background check through the National Instant Criminal Background Check System.

When the application is approved, ATF issues a canceled tax stamp as proof of registration. That stamp is your legal authorization to possess the specific item described in the application, and you must keep it and produce it for any ATF officer on request.5eCFR. 27 CFR 479.101 – Registration of Firearms

Tax Amounts and Processing Times

NFA registration requires a one-time tax, and the amount depends on the item. Under current federal law, the tax to transfer or make a machine gun or destructive device is $200. For every other NFA category, including suppressors, short-barreled rifles, short-barreled shotguns, and any other weapons, the tax is $0.8Office of the Law Revision Counsel. 26 USC 5811 – Transfer Tax9Office of the Law Revision Counsel. 26 USC 5821 – Making Tax That is a significant change from the long-standing $200-per-item rate that applied to most NFA categories for decades.

As of March 2026, average eForms processing times run about 49 days for a Form 1 (making), 6 days for an individual Form 4, and 25 days for a trust Form 4.10Bureau of Alcohol, Tobacco, Firearms and Explosives. Current Processing Times Applications can take longer if the background check flags something or if volume spikes. While you wait, a dealer holding the item for you may charge a storage or transfer facilitation fee, typically $50 to $150.

Registering Through a Trust

Many NFA owners register items through a gun trust rather than as individuals. The main practical reason is shared access: when an item is titled to a trust, any trustee may legally possess and transport it without the registered owner being present. Under individual registration, no one else may possess the item unless you are physically there.

The trade-off is paperwork. Every “responsible person” on the trust, meaning anyone with authority to direct its management or possess items on its behalf, must submit fingerprints, a passport-style photograph, and CLEO notification with each application.7Bureau of Alcohol, Tobacco, Firearms and Explosives. National Firearms Act (NFA) Responsible Person Questionnaire – ATF Form 5320.23 Each also undergoes a background check, which helps explain why trust applications average longer processing times than individual ones. Corporations and LLCs can also hold NFA items, with officers or managing members serving as the responsible persons.

Traveling With Registered Items

Taking certain NFA firearms across state lines requires advance written permission from ATF via Form 5320.20. This applies to machine guns, short-barreled rifles, short-barreled shotguns, and destructive devices. Submit the form and receive approval before the item leaves your state.11Office of the Law Revision Counsel. 18 USC 922(a)(4) – Unlawful Acts12Bureau of Alcohol, Tobacco, Firearms and Explosives. Application to Transport Interstate or to Temporarily Export Certain NFA Firearms – ATF Form 5320.20

Suppressors and any other weapons are not on that list and do not need prior ATF authorization to travel interstate. You still have to verify that the destination state allows possession of the item. A handful of states prohibit civilian suppressor ownership entirely, and some restrict short-barreled rifles or other categories. Federal registration does not override a state-level ban.

Inheriting NFA Firearms

When a registered NFA owner dies, items in the estate can pass tax-free to lawful heirs. These are involuntary transfers by operation of law, so no tax is owed. The executor files ATF Form 5 to register the item to the heir.13Bureau of Alcohol, Tobacco, Firearms and Explosives. NFA Handbook – Transfers of NFA Firearms in Decedents Estates

A few rules make this less straightforward than inheriting other property:

  • ATF must approve the Form 5 before the item is physically transferred to the heir. Do not hand over the firearm during probate without approval.
  • The heir’s FD-258 fingerprint cards must accompany the application.
  • The executor must provide documentation of authority (letters testamentary or equivalent) and the heir’s entitlement to the item.
  • A “lawful heir” is anyone named in the will, or, absent a will, anyone entitled to inherit under the laws of the state where the deceased last resided.

Executors may hold custody of estate NFA firearms for a reasonable period to arrange transfers, but they cannot send items to a dealer for consignment or safekeeping; that would count as an unauthorized transfer. A dealer can broker a sale, but the item stays with the executor.14Bureau of Alcohol, Tobacco, Firearms and Explosives. Transfers of National Firearms Act Firearms in Decedents Estates If the estate contains NFA items that were never registered, they are contraband and cannot be registered after the fact. The executor should contact a local ATF office to arrange abandonment.

Keeping Your Records Accurate

Maintaining accurate NFRTR records is the owner’s ongoing responsibility. If you permanently change a registered firearm’s caliber, barrel length, or overall length, notify the NFA Division in writing.15Bureau of Alcohol, Tobacco, Firearms and Explosives. Application to Transfer and Register NFA Firearm (Tax-Paid) – ATF Form 5320.4 Permanently swapping an upper receiver to a different caliber on a registered short-barreled rifle, for example, triggers this requirement.

If you find an error in your registration, such as a transposed serial number digit or an incorrect address, contact the NFA Division promptly with a written explanation and the correct information. Errors can cause serious problems during future transfers or if law enforcement runs the serial number.

Lost or destroyed registration documents can be replaced by requesting a certified copy from ATF. Since you must retain proof of registration and produce it on request, getting a replacement quickly matters.5eCFR. 27 CFR 479.101 – Registration of Firearms To check the status of a pending application, contact the NFA Division with the item’s serial number and the name of the transferor or transferee. The NFA Division sits within ATF’s Industry Processing Branch, which maintains the registry itself.16Bureau of Alcohol, Tobacco, Firearms and Explosives. National Firearms Act Division

Is the NFRTR Public?

No. Because NFA registration is built into the federal tax code, the NFRTR is legally classified as a tax record. That gives it the confidentiality protections of the Internal Revenue Code, which generally prohibits disclosure of tax return information to other agencies or to the public without a court order or specific statutory authorization.17Office of the Law Revision Counsel. 26 USC 6103 – Confidentiality and Disclosure of Returns and Return Information The registry is not publicly searchable, and unauthorized personnel cannot query it. That is a meaningful distinction from some state-level firearm databases that may be reachable through public records requests.