Transferring NFA Items From a Gun Trust After a Death

When the person who set up a gun trust passes away, the suppressors, SBRs, and other NFA items held in that trust don't vanish — and they don't automatically become anyone's personal property. The trust still owns them, and the successor trustee now has authority to manage and transfer them. This guide is about the execution: how that transfer actually works on the ATF eForms system, in the order the work has to happen.

What follows is written from filings we have actually run, including a batch that got disapproved and had to be rebuilt. The corrections in the callout boxes are the parts that cost real time.

This is general information, not legal or tax advice. Estate transfers of NFA firearms carry real legal and tax nuance, and the right path depends on your situation and state law. Work with a qualified NFA/gun-trust attorney, and always confirm current requirements on the official ATF eForms site (eforms.atf.gov). Stonebridge Gunworks does not file these applications on your behalf.

The one idea the whole process runs on

The registry is the source of truth, and everything else has to agree with it.

Every registered NFA item has a record in ATF's registry, and that record — not the roll marks on the item, not your invoice, not your spreadsheet — is what eForms puts on the application. When you pull an item in, the maker, model, caliber, and lengths fill in automatically and cannot be edited.

Almost every avoidable problem in a death-related transfer comes from something disagreeing with that record: a Form 5320.23 filled out from the markings instead of the registration, a control number nobody can read, or an attachment that tells the examiner a different story than the application does.

So the work is sequenced deliberately. Pull the items first. Then prepare the paperwork to match what came back. Then build the applications. Doing it in that order costs one extra sitting up front and saves re-signing documents later.

Step 1 — Test-pull every item before you go live with execution

Make this a rule: no document gets signed, and no application gets built, until every item has been successfully pulled once in a throwaway draft.

You do not need to be ready to file to find out what the registry says. Start a draft, pull the items, write down what comes back, and save it. Drafts persist on ATF's server, nothing is visible to anyone until you submit, and you can leave a draft sitting while you sort out whatever the test pull exposed.

A test pull answers three questions at once, all of which are expensive to answer later: Is this control number real and does it belong to this item? What exactly is this item registered as? Are there any items I can't get in at all?

1. Log in at eforms.atf.gov and start a new ATF Form 4 (5320.4). Choose transferor type Trust.
2. Click through to the Firearm train stop. You can leave the earlier steps rough for now — this draft is for discovery.
3. Choose Add Firearm from Control Number. Enter the item's registration control number and click Find Form.
4. Enter the serial number and click Add Firearm.
5. Record exactly what eForms returns for that item: firearm type, manufacturer, model, caliber, barrel length, and overall length — character for character.

That last step is the deliverable. What you are building is a simple table — one row per item — that becomes both your Schedule A for the trust records and the reference every Form 5320.23 gets filled out from.

The pull is self-checking, which is worth knowing: eForms will not add the line unless the serial you typed actually belongs to the registration you named. So a successful pull confirms two things at once — that the control number is the right one for that item, and that the description now on your screen is that item's. A number that finds a form but rejects your serial is a number pointing at the wrong registration.

Item	Type	Maker	Model	Caliber	Barrel / OAL	Serial	Control number
1	Silencer	? exactly as eForms returned it					as used to pull it

Step 2 — If an item won't pull: getting the control number

There are two ways to put a registered item on a Form 4, and for older items only one of them exists.

• Add Firearm from Control Number — works for anything registered.
• The inventory picker — shows only inventory that is visible inside eForms, meaning items acquired or registered through the electronic system.

Where the number lives, and why you may not be able to read it

The registration control number is printed on the item's original approved tax stamp — the approved Form 1, Form 3, Form 4, or Form 5 that came back from ATF.

Requesting the numbers from ATF

The registrant — or the successor trustee now acting for the trust — can request the registry information for items registered to that trust. Practical notes from doing it:

• Send the request from the party who actually holds the registrations, and identify each item as precisely as you can: type, manufacturer, model, caliber, and serial number. The serial is what they search on.
• If the person making the request is a successor trustee rather than the original grantor, include the same authority documentation described further down — the trust and the death certificate — so the request isn't bounced.
• Reconcile what comes back. These lists arrive with serial typos, occasional "Not Found" rows, and items simply missing. Cross-check every row against any stamp you can read, and against the item in hand.
• Anything still missing after that gets pulled the hard way — but note you can also test a returned number immediately using the Step 1 draft. If it pulls and the serial validates, the number is good. That is a far better check than reading it twice.

Schedule A — the ten-minute step that saves your family the whole ordeal

Once you have pulled every item and confirmed every number, write it down where the next person will find it. Keep a page in your trust records — call it Schedule A — NFA Items — with a row for each item: type, maker, model, caliber, serial number, control number, and approval date. Use the registry wording, not the roll marks. Keep a copy of every approved stamp with the trust documents, and update the page whenever you add an item.

That single page is what lets a successor trustee pull each item straight into eForms and file cleanly, instead of reconstructing registry data for a whole collection at the worst possible moment.

Step 3 — Make the Form 5320.23 match the registry pull

Every responsible person of the receiving party completes a Form 5320.23 (NFA Responsible Person Questionnaire) for each item being transferred, and the firearm block on that form identifies the item: type, manufacturer, model, caliber, and serial number.

Those entries must match what the registry returned in Step 1 — not what is engraved on the item, and not what an old invoice or spreadsheet says.

This is the whole reason for pulling the items first. If the 23s get filled out from the markings and the registry says something different, you end up holding a stack of signed, dated documents that disagree with the application they're attached to. Fixing that means going back to the signer and re-doing them.

Two practical habits worth adopting before you scan anything:

• Name each scanned file with its serial number — for example 5320.23 - [SERIAL] SIGNED.pdf. When you're attaching the twelfth of fifteen near-identical documents, the filename is the only thing that lets you confirm you're attaching the right one.
• Keep exactly one folder of signed 23s. If a second set gets produced — a corrected batch, or one with an added field — retire the old folder immediately. Two folders of similar-looking scans is how the wrong version gets filed.

Step 4 — Which form you're filing, and what your attachments say about it

Which form depends on where the items are going — and the two paths are nothing like each other in practice.

Form 4 — Application for Transfer. The path when items are being sold, or transferred to someone who isn't inheriting them: a successor trustee liquidating to settle the estate, or moving items into a buyer's trust. Filed electronically in eForms, one full Form 4 per item. This is the path this guide covers.

Form 5 — Application for Tax-Exempt Transfer. The estate path: distributing a deceased person's registered NFA firearm to a lawful heir or beneficiary. Always tax-free — but in practice this route runs on paper and takes considerably longer than an electronic Form 4. If the trust is passing items to the people named to receive them, this is the road you're on, and you should plan for a different timeline than anything described here.

The 2026 change worth knowing: the federal transfer tax on suppressors, SBRs, SBSs, and AOWs is now $0. A trust-to-trust Form 4 to settle an estate no longer carries the old $200-per-item toll, so the electronic path is now both the faster one and, for these items, a free one. Machine guns and destructive devices still carry the $200 tax. When the tax shows as $0 and the Pay button is greyed out, that is correct behavior, not an error.

Which means the choice is no longer about money. It is about who is receiving the item — a buyer (Form 4) or an heir (Form 5) — and confirming that with the attorney handling the trust is worth doing before you file anything.

Step 5 — The death certificate: when you need it, and how to caption it

When you need it. A certified death certificate of the grantor is what establishes a successor trustee's authority to act. If the person signing for the transferor trust is not already a named, currently-acting trustee — if they are stepping up under the trust's successor-trustee provision — then the death is the event that vests their power to sign, and the examiner has no way to know that happened unless you show it. In that situation the death certificate is required, whether the filing is a Form 5 to an heir or a Form 4 sale.

When you may not need it. If a co-trustee or an already-acting named trustee is signing, their authority may be evident from the trust itself. Confirm that reading with the attorney who handles the trust rather than deciding it yourself.

How to caption it. Attach it on the Electronic Documents step with Document Type OTHER, and use the description field to say plainly what it is for and what the transaction is not. One line does it. This is the wording we file:

Cite the provision by whatever the trust actually calls it — trusts number their provisions as Articles, Parts, or Sections, so filled in this reads "…per trust Part 4.B" or "…per trust Article VII, Section 2." Find the clause that names the successor trustee and says when they take over; it usually reads along the lines of "upon the death or incapacity of [grantor], the trustee of this trust shall be Administrator."

Naming the provision is what turns the sentence from an assertion into something an examiner can verify against the trust document you attached alongside it. Look it up and quote the number correctly — a citation that doesn't resolve is worse than no citation.

Three supporting points:

• Leave item 3d and every decedent/estate field blank on a sale. Filling them in is a second signal pointing the same wrong direction.
• Say the same thing in any correspondence. If you email an examiner about the filing, repeat the clarification in the email. An examiner picking up a fresh application has no memory of an earlier thread.
• On a Form 5 to an actual heir, none of this applies — there the estate character is the point, the death certificate needs no defending, and you are on the paper track by design rather than by accident.

Step 6 — Building the application, screen by screen

The successor trustee runs the filing from the transferor trust's side and needs their own eForms login (free registration at eforms.atf.gov). Before starting, have the receiving party's entity details and every one of their responsible persons' information in front of you — the responsible-person record alone is around twenty fields plus three file uploads, and hunting for a birth county mid-build is how a two-hour job becomes a four-hour one.

How the form is laid out

An application is a sequence of train stops across the top of the screen:

Form 5320.4 ? Transferor ? Alternate Address ? Transferee ? Responsible Persons ? CLEO ? Firearm ? Electronic Documents ? Verify ? Certify

A few things about moving around in it, none of them obvious:

• You can click any train stop to jump to it. Visited stops change color, so the header doubles as a progress indicator.
• Every step commits to ATF's server as you advance. A dropped connection or a closed laptop does not lose work you have already passed.
• The eForm ID is displayed at the top right. Write it down. It is the fastest — and most reliable — way to find this draft again.
• Save, Cancel, View PDF, and Go Home sit at the top left throughout. Go Home prompts you with Discard & Exit / Save & Exit / Cancel; choose deliberately.
• Drafts persist but not forever — eForms states that drafts left in DRAFT status are deleted 90 days after creation.

1. Start the application

From the eForms home screen, choose the ATF Form 4 (5320.4) tile. You are asked for the transferor type — FFL with SOT, Individual, Trust, Corporation or Other Entity, or FFL without SOT. For a transfer out of the deceased's gun trust, choose Trust, then Next. An instructions page follows; read it once and click Next again.

This choice drives which fields appear downstream, so get it right before building anything else.

2. Transferor — the deceased's trust

Enter the trust exactly as it is named in the trust instrument, along with its address, telephone, and an email address that will receive status notifications. The responsible person shown for the transferor is the successor trustee — the person now acting for the trust.

On this step the zip code auto-fills city, county, and state. Enjoy it; it does not happen on the later address steps.

3. Alternate Address

Only needed when correspondence or the approved stamp should go somewhere other than the address you just entered. For most trust filings this step is a pass-through — read it, leave it, click Next.

4. Transferee — the receiving party

Enter the receiving party's entity type, exact legal name, and address. For a trust, the entity name field takes the trust name only — no individual's name in it.

City and county do not auto-fill here. Set them yourself and check them; this is a quiet source of mismatched addresses.

When the transferee is a trust, corporation, or other legal entity, eForms will require entity documentation on the Electronic Documents step and a responsible-person record for each responsible person — both covered below.

5. Responsible Persons — the longest step, and where three of the files go

Each responsible person of the receiving party gets their own record. Click Add Responsible Person and work down the modal. In order:

Field	Notes
Citizenship, and citizenship country	dropdowns
Cadence, Title
First name, Middle Name Detail, Middle name, Last name	option text is uppercase in this modal
Email	this person's contact address on the filing
Form 5320.23	PDF only, 3MB max
Photo	JPG / JPEG / PNG, 3MB max
Electronic Fingerprints	.EFT only, FBI EBTS spec, transaction type FAUF, 12MB max
SSN	the form states it is not required, but that failure to provide may delay processing
Zip code, State, City, Full street address
Date of birth	MM/DD/YYYY
Birth country, Birth state
State of residence, Sex, Race/Ethnicity
AR# or I9#	non-citizens only
UPIN	optional

Then Save & Close. (Cancel asks whether you want to discard your changes.)

That list is the one worth printing before you start. Gathering a birth county and a state of residence for someone who isn't in the room, fifteen times, is the difference between a smooth morning and a miserable one.

6. CLEO

Enter the chief law enforcement officer for the responsible person's locality: agency name, the official's name and title, and the full mailing address. As with the transferee step, city and county do not auto-fill.

This block is identical on every application for the same responsible person, so write it down once and reuse it. Missouri filers have a shortcut — see further down.

7. Firearm

Exactly as in Step 1: Add Firearm from Control Number ? enter the registration control number ? Find Form ? enter the serial number ? Add Firearm.

Check the description that fills in against your Schedule A row before moving on. It is registry-locked and cannot be edited, which is the point.

Worth noting for anyone who has read otherwise: this statement is generated on a trust-to-trust transfer too, not only when a licensed dealer is the transferor. Its appearance is driven by the firearm type, not by who is transferring.

The transfer tax appears here too. For suppressors, SBRs, SBSs, and AOWs it shows $0 and the payment control is disabled. That is correct — see Step 4.

8. Electronic Documents

This step holds the entity and case paperwork — not the 23, photo, or fingerprints, which live on the responsible-person record you already completed. eForms states the limits on screen: 20 attachments per form, 30MB each, 600MB per submission. Word, PDF, Excel, PowerPoint, JPG/JPEG, and GIF are accepted. .EFT is not.

For each document the flow is File (Browse) ? Document Type ? Description ? Add Document, after which the file appears as a row in the grid with an ID, name, size, type, description, and a red ? to remove it. What to attach and how to tag it:

• The receiving trust — Document Type CORPORATION/TRUST/OTHER LEGAL ENTITY. This is the attachment that clears the "must attach documentation of the existence of the legal entity" error; nothing else satisfies it.
• The transferor (deceased's) trust — OTHER.
• The certified death certificate, if required — OTHER, with the caption from Step 5.
• Anything else establishing the successor trustee's authority, if not already clear from the trust — OTHER.

Write descriptions that survive truncation

The field accepts a long entry, and "OTHER" on its own tells an examiner nothing — this is where you get to say what a document is for. But the fact that you can write a paragraph is not a reason to.

You do not control where your description gets read or clipped. A grid column, a report view, or a reviewer's screen may show only the first line, and anything past that may as well not exist. So the target is one line that stands alone: what the document is, why it is there, and — where there is a wrong conclusion available — an explicit denial of it.

A useful test: read only the opening fragment and ask whether someone who saw nothing else would classify the transaction correctly. If not, rewrite the opening rather than adding to the end.

The three descriptions as a set:

Read as a set, those three tell one coherent story: here is the selling trust, here is the buying trust, here is why the seller's trustee can sign. Someone skimming the attachment list sees a trust-to-trust sale, not an estate.

Only the death certificate carries an explicit negation, because it is the only one that invites the wrong conclusion. The other two just have to establish the parties and their roles. Repeating the disclaimer on all three reads like protesting.

Keep them short. Every one of these fits on a single line, which is the entire point — there is no clipping problem if there is nothing past the first line to clip.

The page also shifts vertically after you pick a Document Type, so look before your next click rather than clicking where the button used to be.

9. Save, and repeat

One Form 4 per item. Finish each application completely before starting the next — a half-built form you intend to come back to is where omissions live. Save, note the eForm ID, and start again from the tile.

To find a draft later, search by eForm ID. Unfiltered searches can hang, and if you filter by Form Status the system requires a Form Type as well. At the end of a batch, a search for Form 4 drafts is a useful reconciliation: the count should equal what you built, and after submission it should be zero.

Step 7 — Verify, certify, and submit

The Verify step renders the whole application. Read it, per form, against your Schedule A row: serial number, both parties' full names, the entity names, the responsible-person record, the attachment list, and item 3d blank. This is the last point at which a mistake is free. After certification it is not merely expensive — a disapproved application cannot be corrected or reopened at all, and going again means building the whole thing over from scratch under a new number. Read carefully here.

Two more things about the certification session:

• One active eForms session per account. Nobody should be logged in anywhere else — a phone, a second computer — or they will eject the session mid-filing.
• Capture the new application number from the confirmation before dismissing it. It is issued at submission and it is what any follow-up correspondence will reference.

If a filing comes back disapproved

It's also worth knowing that a disapproval is not necessarily an error in your paperwork at all. Sometimes it means the application was read as a different kind of transaction than it was — and in that case there may be nothing on the form to "correct," which is exactly the situation where guessing does the most damage.

1. Read the stated reason carefully before changing anything, and quote it back verbatim when you write. If it describes a process that doesn't match what you filed — "beneficiary," "estate," "submit paper forms by mail" on what is plainly a sale — that's a classification problem, not a data problem, and no amount of correcting your data will fix it.
2. Write to the Industry Processing Branch. That inbox is where an unattributed disapproval gets a human attached to it. A program specialist picks it up and replies to you directly — and from that point you have a named contact for the rest of the matter. In our case the reply came back the next business morning, roughly nineteen hours after the email went out. (We used [email protected]; addresses change, so confirm current contacts on atf.gov before you send.)
3. Refile the way they tell you to, with the clarifying language in the attachment descriptions this time.
4. Email the new application numbers back on the same thread, with a one-line description beside each so they can match numbers to items without opening every form. Replying on the thread the specialist started keeps their own message right underneath — that context is what lets them pick it straight back up.

What to put in that email

The letter that worked was long, specific, and made the recipient's job easy. Its shape is worth copying:

• Who you are and in what capacity — successor trustee of the named trust, transferor on the applications listed.
• The disapproval reason, quoted exactly, and the date.
• Every affected application, listed with control number, eForm ID, item description, and serial. One line each.
• Why the stated reason doesn't fit, in numbered points. The ones that mattered: the firearms are trust property and the trust survived the grantor; the successor trustee signed under the trust's own authority; the transferee is a purchaser, not a beneficiary or heir; item 3d was left blank on every application because no decedent transfer was claimed; and the $0 tax is the current statutory rate auto-populated by eForms, not an exemption anyone claimed.
• Name what you think caused it. Ours said plainly that a death certificate was attached solely to establish successor-trustee authority, and that this single attachment was the suspected reason all fifteen got routed to paper. Volunteering the likely cause is what lets a specialist confirm or correct it in one reply instead of three.
• Offer the fix, and ask what else they want. Offer to refile without the attachment if that's the concern; ask them to specify any other correction; and only as a last resort ask what to submit on paper and where. Giving them an easy yes is what produces a one-line answer.

Handled that way, getting a real answer is a matter of days rather than months — the reply we got authorized an ordinary transfer-to-transfer refile and promised the new control numbers would be processed without delay, which is exactly what happened.

Be clear-eyed about what that recovery does and doesn't buy you, though. It gets you a correct filing and, if you've built a specific enough case, a specialist willing to move it along. It does not give you back the time the denied applications already spent in the queue. Those applications are gone and the new ones start over. That asymmetry — a day spent asking versus a full cycle spent guessing — is the entire argument for slowing down at the two points where it's cheap: the test pull before anything is signed, and the verify pass before anyone certifies.

Missouri filers — the CLEO shortcut

Because the head of the state police qualifies as a CLEO, a Missouri responsible person can send their CLEO notification to the Superintendent of the Missouri State Highway Patrol instead of tracking down a local official:

Missouri State Highway Patrol — Superintendent (Col. Michael A. Turner as of 2026)
1510 East Elm Street, Jefferson City, MO 65101

What you'll need — checklist

• The registration control number for every item, verified by actually pulling it in a draft.
• The registry description for every item, recorded exactly, for the 5320.23s to be filled from.
• The transferor trust — complete, signed, notarized.
• A certified death certificate of the grantor, if the signer is acting as successor trustee.
• The trust provision number that names the successor trustee, for the attachment description.
• For the receiving party: their trust or entity documents, and for every responsible person a completed and signed Form 5320.23 per item, a 2×2 photo, an .EFT fingerprint file, and their CLEO information.

Cost and timing

• Form 4 sale or transfer of suppressors, SBRs, SBSs, or AOWs — $0 transfer tax as of 2026, filed electronically. Machine guns and destructive devices still carry $200.
• Form 5 to a lawful heir or beneficiary — $0 transfer tax, but expect a materially longer, paper-driven timeline. Do not budget an estate distribution off an electronic Form 4's schedule.
• Your own time — one full build per item, with no shortcuts. This is usually the larger cost on a collection.
• Processing times move around, and ATF has been getting faster as eForms improves. Check the current figures rather than trusting any single number. eForms emails status updates to the addresses on each application.
• Nothing moves before the stamp. The items stay where they are until each approval comes back.

Where to go from here

This guide explains the process; it doesn't run it for you. A death-related transfer is filed by the successor trustee or the receiving party directly on the ATF eForms system at eforms.atf.gov — always confirm the current forms and requirements there before you file.

For anything about the trust itself — reviewing it, setting one up, updating who inherits what, or any legal or tax question — that's a job for a qualified NFA/gun-trust attorney, not us, and we don't give legal advice. A firm we're glad to point people to:

Trust & Will Center — Law Office of Jennifer J. Mickelson, PC
Estate planning & NFA gun trusts (MoKaN Gun Trusts) · Lee's Summit, MO
trustandwillcenter.com · (816) 554-7500

Related reading. Filing an ATF eForm 4 (Individual to Trust) walks the same eForms mechanics for someone consolidating items they already own into a trust. If someone in the family is buying their first NFA item, Preparing for Your First Silencer or SBR Purchase and our guide to buying a suppressor are the places to start.

Disclaimer: General information, not legal or tax advice. NFA rules, fees, forms, and processing times change, and estate transfers carry real legal and tax nuance that depends on your situation and state law. Stonebridge Gunworks does not file these applications on your behalf. Always verify current requirements at eforms.atf.gov and consult a qualified NFA/gun-trust attorney.