SOT & Class 3 Dealer FAQ

What is a Class 3 SOT?

A Class 3 SOT (Special Occupational Taxpayer) is a federal tax status that allows FFL holders to deal in NFA items like suppressors, SBRs, SBSs, and machine guns. It's not a standalone license—it's a tax registration added to an existing FFL Type 01, 02, or 09. The "Class 3" designation specifically refers to dealers (as opposed to Class 1 importers or Class 2 manufacturers).

What FFL do I need for Class 3 SOT?

Class 3 SOT requires one of these underlying FFLs:

• Type 01: Dealer in Firearms (most common, $150/3 years)
• Type 02: Pawnbroker ($150/3 years)
• Type 09: Dealer in Destructive Devices ($3,000/3 years)

Most Class 3 dealers use Type 01 due to lower cost and broad dealing permissions.

What's the difference between Class 1, 2, and 3 SOT?

Class 1: Importers of NFA items (requires FFL Type 08 or 11)
Class 2: Manufacturers of NFA items (requires FFL Type 07 or 10)
Class 3: Dealers of NFA items (requires FFL Type 01, 02, or 09)

Class 3 is the most common for retail suppressor sales. Class 2 manufacturers can also deal, so they don't need separate Class 3 status.

Can I be a Class 3 dealer from home?

Yes. Home-based FFLs and SOTs are legal and common. Your business address can be your residence as long as local zoning permits it. Many successful "kitchen table" dealers operate as SOTs from home, conducting sales online or by appointment.

How long does it take to become a Class 3 SOT?

Plan for approximately 3-4 months total:

• FFL application: 60-90 days
• SOT registration: 2-4 weeks after FFL approval

If you already have a qualifying FFL, adding SOT status takes only 2-4 weeks.

How much does a Class 3 SOT cost?

The annual SOT tax for Class 3 dealers is $500. This is in addition to your underlying FFL costs:

• FFL Type 01: $150 (every 3 years)
• SOT: $500 (annual)
• Fingerprinting: ~$25-50 per person

First-year total: approximately $700-800 plus any state licensing fees.

What is the SOT tax year?

July 1 through June 30, regardless of when you apply. Mid-year applicants receive prorated tax:

• July - September: $500 (full)
• October - December: $375
• January - March: $250
• April - June: $125

Do I need to renew my SOT every year?

Yes. The SOT tax is due annually by July 1st. Missing renewal means losing SOT status and the ability to deal in NFA items. Set calendar reminders well in advance.

How much can I charge for Form 4 transfers?

Transfer fees are not regulated—set your own pricing based on your market. Common ranges: $50-150 for Form 4 transfers, plus fingerprinting services ($25-50). With the 2026 $0 tax stamp, some dealers include transfers in suppressor pricing as a value-add.

Do I need fingerprints to become an SOT?

Not for the SOT application itself (Form 5630.7). However, you need fingerprints for your underlying FFL application (Form 7). Since you must have an FFL before applying for SOT, you'll have already submitted fingerprints for all responsible persons during that process.

Do customers need fingerprints for Form 4?

Yes. Each Form 4 buyer (individual) or responsible person (trust/entity) must submit fingerprints. This is why offering in-house fingerprinting is a valuable service—customers need prints regardless of the $0 tax stamp.

What fingerprint ORI do SOT dealers use?

For FFL applications (Form 7): WVATF1100
For customer Form 4s: WVATF1100
For Form 5 inheritance transfers: WVATF0900 (different!)

Always verify the correct ORI for the specific application type.

What is Form 3 used for?

Form 3 is for tax-free NFA transfers between SOTs. When you acquire suppressors from a manufacturer or distributor, they transfer via Form 3. Benefits: no $200 tax, no fingerprints required for the buyer (you), faster processing.

What is Form 4 used for?

Form 4 is for NFA transfers to end customers (non-SOTs). When you sell a suppressor to a customer, they complete Form 4 with fingerprints and photos. As of 2026, the transfer tax is $0, but the form and approval process remain required.

Can Class 3 dealers own post-sample machine guns?

No. Only Class 2 SOTs (manufacturers) can possess post-1986 machine guns ("post-samples") for demonstration and LEO/military sales. Class 3 dealers can only deal in transferable pre-May 1986 machine guns for civilian sales.

Can I sell machine guns as a Class 3 dealer?

Yes, but only transferable (pre-May 1986) machine guns. These can be sold to qualified civilians via Form 4. Due to limited supply, prices range from $15,000 to $500,000+ depending on the model.

Can I sell suppressors online as an SOT?

Yes. Online sales are common. The suppressor ships to the buyer's local SOT dealer (Form 3) or to your location, then transfers to the customer (Form 4) after approval. All Form 4 compliance requirements still apply.

Do I need a storefront for SOT?

No. You can operate from any licensed premises, including home-based operations. Many successful SOT dealers work by appointment only without traditional retail storefronts.

What happens if I don't renew my SOT?

You lose SOT status and must dispose of NFA inventory within a reasonable time. Options include: selling to customers (Form 4), transferring to other SOTs (Form 3), or registering items personally (paying transfer tax). You cannot retain NFA dealer inventory without valid SOT.

What records must SOT dealers keep?

SOT dealers must maintain:

• Acquisition and Disposition (A&D) records for all firearms
• Form 4 files for customer transfers
• Form 3 records for SOT transfers
• NFA registry documentation
• Standard FFL records (4473s, multiple sale reports, etc.)

Records must be retained for 20 years.

How does ATF inspect SOT dealers?

ATF conducts compliance inspections during business hours, typically unannounced and limited to once per 12-month period. IOIs review A&D records, 4473s, NFA documentation, and may physically verify inventory against records. Proper record-keeping is essential for passing inspections.

What insurance do SOT dealers need?

While not federally mandated, most SOT dealers carry:

• General liability insurance
• Product liability coverage
• Theft/loss insurance for NFA inventory
• Errors & omissions coverage (optional)

Consult an insurance professional familiar with firearms businesses.