You fill out ATF Form 1 by submitting an Application to Make and Register a Firearm through the ATF eForms portal or by mailing the paper version, paying the $200 making tax (or $5 for an Any Other Weapon), and waiting for ATF approval before you build the National Firearms Act item. The form covers nine main sections that ask who you are, what you are making, why you are making it, and whether you can lawfully possess it under federal and state law.
Skipping a single line item, mismarking the maker, or building before approval turns a lawful project into a felony under 26 U.S.C. § 5861. According to the ATF’s 2024 NFA Division statistics, the agency processed over 600,000 NFA applications, with eForm 1 approvals averaging just under 7 days in early 2026, down from over 300 days during the 2021 backlog.
- 🔫 How to make a legal SBR, SBS, suppressor, AOW, DD, or pre-86 machine gun
- 🧾 How to complete every line on the eForm 1 and paper 5320.1
- 👥 How to file as an individual, a gun trust, or a legal entity
- 🗺️ How state laws in California, New York, and others change your filing
- ⚠️ The seven biggest mistakes that get applications disapproved or returned
What ATF Form 1 Actually Is
ATF Form 1, officially titled Form 5320.1, is the federal application a non-licensee uses to make and register an NFA firearm before construction. The form sits inside the framework of the National Firearms Act of 1934 and the Gun Control Act of 1968, and it is governed by 27 CFR Part 479.
The form pays the making tax set by 26 U.S.C. § 5821, which is $200 for most NFA items and $5 for an Any Other Weapon. The maker must receive an approved Form 1 with a tax stamp before assembling the item. Building first and filing later is unlawful making under 26 U.S.C. § 5861(f), and possession of an unregistered NFA firearm is a separate felony under § 5861(d).
The plain-English meaning is simple. You ask the federal government for permission to build a regulated firearm, you pay the tax, and you wait. The consequence of skipping that order is up to 10 years in federal prison and a $250,000 fine, plus permanent loss of gun rights under 18 U.S.C. § 922(g).
A common misconception is that buying a parts kit means the build is legal. The kit is just metal and polymer. The legal status comes from the approved tax stamp tied to a serial number, a maker’s mark, and the registered configuration found in the National Firearms Registration and Transfer Record.
Who Must File Form 1
Any non-licensee who wants to make an NFA firearm files Form 1. Licensed manufacturers who pay the special occupational tax under 26 U.S.C. § 5801 instead use Form 2 to register items they produce. A regular gun owner converting an AR-15 pistol to a short-barreled rifle, or building a suppressor from a Form 4 solvent trap kit, falls squarely under Form 1.
The applicant can be an individual, a trust, or a legal entity such as an LLC or corporation. Each filing type carries different paperwork demands, fingerprint rules, and responsible-person disclosures explained later in this article. Choosing the wrong applicant type can delay approval by months or trigger a return for correction under 27 CFR § 479.62.
Items You Can Make on Form 1
Form 1 covers the categories defined in 26 U.S.C. § 5845: short-barreled rifles, short-barreled shotguns, silencers, any other weapons, and destructive devices. You cannot use Form 1 to make a new machine gun for civilian possession because the Hughes Amendment closed the registry on May 19, 1986. The narrow exception is government and law enforcement post-sample machine guns made by licensed SOT manufacturers, which use Form 2, not Form 1.
If your project is a suppressor for a rifle, an AR pistol you want to add a stock to, or a 12-gauge with a 14-inch barrel, Form 1 is the right path. The consequence of using the wrong form, such as filing a Form 4 to make an item, is automatic disapproval and a refund delay that can stretch six months.
Choosing Your Filing Method: eForm vs Paper
The ATF eForms system is the modern path and the one most applicants should use in 2026. The paper Form 1 still exists, but processing for paper submissions runs several months longer than electronic filings, according to ATF NFA processing time updates.
eForm 1 approvals in early 2026 average between 4 and 14 days for individuals and trusts, while paper approvals can stretch 6 to 12 months. The reason is simple: the eForms platform routes data into examiner queues automatically, while paper applications wait for manual data entry. The consequence of choosing paper is a much longer wait and a higher chance of a missing-information return.
A common misconception is that paper Form 1 hides your filing from the ATF more effectively. Both filings enter the same NFRTR database, so the privacy difference is zero. The only real reason to file on paper is if you cannot upload digital fingerprints or photos, or if your trust documents exceed the eForms file-size limit.
Setting Up an eForms Account
Before you start, create an account at the eForms login page. You must verify your email, choose a username, and confirm your role as a non-licensee. The account stores your draft applications, payment receipts, and approved stamps as PDFs.
The consequence of using a fake name or another person’s email is automatic rejection and possible referral for 18 U.S.C. § 1001 false statement charges. Each applicant needs their own account, even when filing through a shared trust, because responsible persons sign their own Form 23 electronically.
Step-by-Step Walkthrough of Each Form 1 Section
The eForm 1 has nine numbered sections. Each section maps to the same boxes on the paper 5320.1 PDF. Filling them out correctly is the single biggest factor in fast approval.
Section 1: Application Type and Applicant Information
You first choose your applicant type: individual, trust, or legal entity. Then you enter your full legal name, address, daytime phone, and email. Your address must match a government-issued ID and must be a place where you can lawfully possess the finished NFA item.
The consequence of listing a P.O. box, a state with an SBR ban, or an address that does not match your ID is a return for correction under 27 CFR § 479.62. A real-world example: Maria Lopez lives in Texas but uses her parents’ California address because she visits often. The application is denied because California bans civilian SBRs under California Penal Code § 33215.
A common misconception is that you can use any U.S. address. You cannot. The address must be your primary residence and the intended storage location of the firearm.
Section 2: Type of Firearm to Be Made
Here you pick the NFA category from a dropdown: short-barreled rifle, short-barreled shotgun, silencer, machine gun, destructive device, or any other weapon. The category drives the tax amount, with § 5821 setting $200 for most items and $5 for AOWs.
The consequence of mismarking the category, such as marking silencer when the item is actually an integrally suppressed barrel SBR, is disapproval and re-filing. Jake Patterson picks “silencer” for a solvent trap kit, but the kit is sold with a 4-inch barrel and a stock, making it an SBR plus silencer, two separate Form 1 filings.
Section 3: Manufacturer and Caliber Information
You enter the maker, which is you or your trust/entity, the city and state of making, the model designation you choose, the serial number you choose, the caliber or gauge, and the barrel and overall length. Your serial number cannot duplicate any other firearm you own and must be permanently engraved per 27 CFR § 479.102.
The engraving must be at least 0.003 inches deep and 1/16 inch tall, with the maker’s name, city, state, model, serial, and caliber. The consequence of failing to engrave before, or shortly after, the approval is a violation of § 479.102 and possible seizure.
A common misconception is that you must engrave before filing. You do not. You must engrave before, or as part of, making the firearm. Many builders engrave after approval and before final assembly to avoid wasting an engraved receiver if the application is denied.
Section 4: Photo and Fingerprint Requirements
Individuals and every responsible person on a trust or entity must upload a 2-inch by 2-inch passport-style photo taken within the last year, plus two FD-258 fingerprint cards or digital prints in EFT format. The eForms portal accepts the FBI EFT format directly.
The consequence of missing prints is a Form 23 hold, which freezes the application. David Chen files an LLC Form 1 but forgets to add prints for the second LLC member; the ATF returns the package and the eight-month wait restarts.
Section 5: Law Enforcement Notification (CLEO)
Under 27 CFR § 479.63, you must send a copy of the completed application to your Chief Law Enforcement Officer, usually the local sheriff, police chief, or state police head. CLEO notification, not approval, has been the rule since the 2016 ATF Final Rule 41F.
The consequence of skipping CLEO notice is automatic disapproval. A common misconception is that the sheriff must approve your application. The sheriff only needs to be notified; their opinion does not block your stamp.
Section 6: Questions on Eligibility
You must answer questions that mirror ATF Form 4473. You confirm you are not a felon, fugitive, unlawful user of controlled substances, dishonorably discharged veteran, person committed to a mental institution, or otherwise prohibited under 18 U.S.C. § 922(g).
The consequence of a false answer is prosecution under 18 U.S.C. § 924(a)(1)(A). Marijuana use, even in legal recreational states, still counts as unlawful use of a controlled substance under federal law per ATF Open Letter 2011 and the Cole Memo rescission.
Section 7: Certification and Signature
The applicant signs digitally in eForms or in ink on paper. For trusts, every responsible person signs a Form 23. For LLCs, every member, manager, or officer with authority signs.
The consequence of a missing signature is a return that resets your queue position. A trust with three trustees needs three Form 23 packages; if one trustee forgets to sign, the entire application is held.
Section 8: Payment of the Making Tax
You pay through Pay.gov inside the eForms platform using credit card, debit card, or ACH transfer. The fee is $200 for SBR, SBS, silencer, MG, or DD, and $5 for AOW under § 5821.
The consequence of a failed payment is no submission at all, the form sits in draft status. Sarah Mitchell drafts her suppressor Form 1 in January but her card is declined; she sees the draft in March and assumes it was filed, losing two months.
Section 9: Submission and Confirmation
The portal returns a control number that begins with the year and form code, such as 2026-1-XXXXX. Save the PDF, the Pay.gov receipt, and the confirmation email. The control number is how you check status at the NFA Branch.
Filing as Individual vs Trust vs Entity
The applicant type changes who must submit fingerprints, who has legal possession of the item, and who can use it without a trustee present. The choice should be deliberate.
| Filing Type | Key Trade-Off |
|---|---|
| Individual | Cheapest and fastest, but only the named person can possess the NFA item |
| Gun Trust | Multiple trustees can possess and use, but every responsible person submits prints and Form 23 |
| LLC or Corporation | Useful for businesses, but annual filings, state fees, and dissolution rules add complexity |
Individual Filing
An individual filing names one human applicant. Only that person can possess the NFA item under 27 CFR § 479.11. If the named owner dies, the item must transfer on a tax-free Form 5 to a lawful heir.
The consequence of letting a friend or spouse handle the SBR alone is constructive transfer, a felony under § 5861(b). A common misconception is that a spouse can borrow an individually owned suppressor; they cannot, unless the registered owner is present and in direct control.
Gun Trust Filing
A gun trust, often a revocable living trust tailored for NFA items, lets multiple trustees lawfully possess the firearm. Every trustee, called a responsible person under Final Rule 41F, submits prints, photo, and Form 23.
The consequence of a poorly drafted trust is a returned application or invalid possession. Lisa Thompson uses a free internet trust template that omits successor trustee language; her ATF examiner returns it for missing schedules. Industry attorneys such as those at Silencer Shop and the National Gun Trust Lawyers Association recommend a state-specific NFA trust drafted by a licensed attorney.
Legal Entity Filing
LLCs and corporations can file Form 1, but the entity must be in good standing with the secretary of state. Every officer, director, or member with authority is a responsible person who submits prints and Form 23.
The consequence of letting the LLC lapse is loss of legal possession. If the entity dissolves, the NFA items must transfer on Form 4 with a $200 stamp each, not the tax-free Form 5 used for individual death transfers under 27 CFR § 479.90.
State Law Nuances You Cannot Ignore
Federal approval does not override state law. The ATF will approve a Form 1 if the applicant lives in a permissive state, but a state ban makes possession a state crime even with a federal stamp.
Outright Ban States
California Penal Code § 33215 bans civilian SBRs and SBSs. New York Penal Law § 265.02 bans SBRs, SBSs, and most suppressors. New Jersey N.J.S.A. 2C:39-3 bans suppressors and most NFA items. Illinois 720 ILCS 5/24-1 bans SBRs and suppressors. Hawaii Revised Statutes § 134-8 bans most NFA items.
The consequence of filing from a banned state is a denied Form 1, plus possible state charges. Kevin Walsh lives in New Jersey and files a Form 1 for a suppressor; his application is denied and his state-level conduct is investigated by NJ State Police.
Restrictive but Allowed States
Massachusetts and Washington allow NFA items but require additional permits. Connecticut General Statutes § 53-202 allows suppressors but restricts their use to range and pest control.
Permissive States
Most states, including Texas, Florida, Arizona, and Pennsylvania, follow federal NFA rules with no extra steps. Filing is straightforward in these states, but local zoning may still affect range use.
Three Real-World Form 1 Scenarios
These scenarios show the maker, the build, and the result of common Form 1 paths. Each one mirrors a build pattern that ATF examiners see thousands of times each year.
| SBR Build Choice | Form 1 Outcome |
|---|---|
| AR-15 pistol with brace converted to 11.5-inch SBR by adding stock | Approved on eForm 1 in 9 days, engraved with maker, city, state, serial |
| 80% lower built into 10.5-inch SBR with self-engraved serial | Approved in 12 days, but engraving depth measured 0.002 inch and triggered field inspection |
| Factory complete rifle with 16-inch barrel cut to 13 inches before approval | Disapproved and referred for prosecution under § 5861(f) for unlawful making |
| Suppressor Path | Form 1 Outcome |
|---|---|
| Solvent trap kit listed as “fuel filter” assembled into 9mm can on approved Form 1 | Approved in 6 days, engraved on outer tube, lawful to use |
| Same kit drilled and used before approval | Felony unlawful making, kit and host firearm seized |
| Kit purchased and held unassembled while Form 1 pending | Lawful, no constructive possession until drilling begins |
| Trust Filing Path | Form 1 Outcome |
|---|---|
| Three-trustee NFA trust files with all Form 23s, prints, and photos uploaded | Approved in 11 days, all trustees can possess |
| Same trust forgets one Form 23 | Returned for correction, queue resets, adds 30+ days |
| Trust dissolves while Form 1 pending | Application abandoned, $200 fee non-refundable |
Three Named-Person Walkthroughs
Marcus Reed in Dallas wants an 11.5-inch AR-15 SBR. He files an individual eForm 1, uploads digital prints from a local IdentoGO site, pays $200, and engraves “M. Reed, Dallas TX, AR-15, SN MR-001, 5.56 NATO” on the lower. He receives approval in 8 days.
Priya Shah in Phoenix wants a .30-caliber suppressor and a future SBR. She forms a revocable NFA trust with her spouse, files an eForm 1 for the suppressor under the trust, and adds her spouse as co-trustee. Both submit Form 23, prints, and photos. The stamp arrives in 14 days, and both lawfully possess the suppressor.
Greg Olsen in Tampa runs an LLC and wants a company demo SBR for his training business. He files an entity Form 1, lists himself and one manager as responsible persons, and uploads the Florida Sunbiz good-standing certificate. The approval takes 18 days because the manager’s prints are partially smudged and ATF requests a re-scan.
Mistakes to Avoid
These are the seven errors that drive most Form 1 returns and disapprovals each year. Each mistake has a specific negative outcome that wastes time, money, or both.
- Building before approval. This violates § 5861(f) and creates a felony before the stamp arrives.
- Wrong applicant address. Listing an address in a banned state triggers automatic denial and a six-month refund cycle.
- Missing CLEO copy. Skipping the § 479.63 notice causes disapproval even if every other line is perfect.
- Shallow engraving. Engraving under 0.003 inches deep leads to a field inspection finding and a possible re-engrave order.
- Reused serial numbers. Duplicating a serial across two builds violates § 479.102 and confuses the NFRTR.
- Untrue marijuana answer. Answering “no” to controlled-substance use while holding a state medical card violates § 922(g)(3).
- Incomplete trust schedules. Missing Schedule A or trustee signatures leads to return without examination.
Do’s and Don’ts of Filing Form 1
These rules apply equally to individuals, trusts, and entities. Following them shortens approval times and protects the maker from prosecution.
- Do file electronically through eForms for the fastest examiner queue.
- Do save your control number because the NFA Branch cannot find your file without it.
- Do engrave before final assembly to satisfy § 479.102.
- Do verify state law before filing because federal approval does not override state bans.
-
Do keep a digital and paper copy of your stamp for life in case of audit.
-
Don’t build before approval because § 5861(f) makes that a 10-year felony.
- Don’t lend to non-trustees because that is constructive transfer under § 5861(b).
- Don’t ignore the CLEO because the § 479.63 rule is non-discretionary.
- Don’t lie about marijuana because federal law still controls under § 922(g)(3).
- Don’t move states without filing Form 5320.20 for SBRs, SBSs, or MGs.
Pros and Cons of Each Filing Type
The trade-offs below come from years of ATF examiner guidance and trust-attorney commentary.
Individual filing pros: – Lower paperwork burden, just one applicant set of prints and photo – Faster file size in eForms – No annual entity fees – Easier to amend by re-filing – Tax-free Form 5 heir transfer at death
Individual filing cons: – Only the named person may possess – Spouse cannot use without owner present – Heir must wait for estate settlement – Address change paperwork Form 5320.20 is on the individual – No flexibility for business use
Trust filing pros: – Multiple trustees can possess – Smooth succession through trust terms – Privacy from probate – Easier estate planning under Uniform Trust Code states – Co-trustee can use the item independently
Trust filing cons: – Every responsible person submits prints and Form 23 – Trust drafting fees of $200 to $600 – Amendments must be reported to ATF – Bad templates trigger returns – More complex audit trail
Costs and Processing Times
The making tax is the headline cost, but it is not the only one. Real total costs include trust drafting, fingerprints, engraving, and time.
- Making tax: $200 (or $5 for AOW) under § 5821.
- Fingerprints: $20 to $50 per person at IdentoGO or local police.
- Trust drafting: $200 to $600 from a licensed attorney or Silencer Shop’s free trust.
- Engraving: $20 to $75 per item at a local shop or with a desktop laser.
- Processing time: Roughly 4 to 14 days for eForm 1 in early 2026 per ATF NFA processing times.
Key Court Rulings and Regulatory History
The Form 1 process is shaped by a small set of cases and rules. Each ruling explains why the form looks the way it does today.
United States v. Miller (1939) upheld the NFA’s tax-and-register approach for short-barreled shotguns, establishing the federal authority for the making tax. United States v. Thompson/Center Arms Co. (1992) defined when a parts kit becomes a making event, which guides today’s solvent-trap and pistol-to-SBR analysis.
Mock v. Garland (5th Cir. 2024) vacated the 2023 Final Rule on stabilizing braces, returning many AR pistols to non-NFA status, but the underlying Form 1 process for intentional SBR builds was unaffected. ATF Final Rule 2021R-08F reshaped Form 1 traffic in 2023 and 2024 by offering tax-free amnesty registration that expired May 31, 2023.
The Hughes Amendment of 1986 closed the machine gun registry to civilians, which is why Form 1 cannot be used to make a new machine gun for personal use. ATF Final Rule 41F (2016) added the responsible-person definition and the Form 23 requirement for trusts and entities.
After Approval: What You Must Do
The approved stamp is not the end of the road. The maker must engrave, store, transport, and bequeath the firearm under specific NFA rules.
Engraving must be complete before the firearm is functional under § 479.102. Storage should be secure to avoid lost-or-stolen reporting, which is required immediately under 27 CFR § 479.141. Interstate transport of an SBR, SBS, MG, or DD requires advance approval through Form 5320.20; suppressors and AOWs do not.
A common misconception is that the stamp lets you build similar items freely. Each NFA item needs its own Form 1 and its own $200 stamp, with rare exception for AOWs at $5.
FAQs
Can I build my SBR before the Form 1 is approved?
No. Building before approval violates 26 U.S.C. § 5861(f) and is a federal felony with up to 10 years in prison and a $250,000 fine.
Can I file Form 1 as a non-U.S. citizen?
No. Only U.S. citizens and lawful permanent residents who meet 18 U.S.C. § 922(g)(5) can file, and non-immigrant visa holders are barred unless an exception applies.
Can a gun trust speed up the Form 1 process?
No. Trusts and individuals are now examined under the same Final Rule 41F standard, so processing times are similar.
Can I use Form 1 to make a new machine gun?
No. The Hughes Amendment closed the registry on May 19, 1986, so no new civilian machine guns can be registered.
Can I file Form 1 from California or New York?
No. Both states ban civilian SBRs under Cal. Penal Code § 33215 and NY Penal Law § 265.02, so the ATF will deny the application.
Can I let my spouse shoot my individually owned suppressor?
Yes, but only when you are present and in direct control; otherwise it is constructive transfer under § 5861(b).
Can I engrave my serial number after I receive the stamp?
Yes. Engraving must occur before the item is functional and complete, per 27 CFR § 479.102, but does not have to precede ATF filing.
Can I move to another state with my approved SBR?
Yes, but only after filing Form 5320.20 and confirming the destination state allows civilian SBR possession.
Can I file paper instead of electronic Form 1?
Yes, but paper processing currently runs months longer than eForm 1 per ATF NFA processing time data.
Can I get my $200 back if my Form 1 is denied?
Yes. A denial triggers a refund of the making tax, but processing the refund can take 8 to 24 weeks through Pay.gov.
Can I add accessories to an approved SBR without re-filing?
Yes, swappable accessories like optics, lights, and slings need no new filing, but a permanent caliber or barrel-length change requires an amendment letter to the NFA Branch.
Can I file Form 1 for a destructive device like a 40mm grenade launcher frame?
Yes, civilian DDs are allowed under 26 U.S.C. § 5845(f) in most states, but state law in California and others bans them outright.
Related reading
- How to Fill Out ATF Form 3 (w/Examples) + FAQs
- How to Fill Out ATF Form 4 (w/Examples) + FAQs
- How to Fill Out ATF Form 5 (w/Examples) + FAQs
- How to Fill Out ATF Form 5320.20 (w/Examples) + FAQs
- How to Fill Out ATF Form 7 (w/Examples) + FAQs
- How to Fill Out ATF Form 8 (w/Examples) + FAQs
- How to Fill Out ATF Form 23 (w/Examples) + FAQs