Updated June 2026 · Reviewed by a Form 5472 specialist

The short answer
Key takeaways
Almost all do. A foreign-owned single-member LLC files Form 5472 once it has at least 1 reportable transaction, and funding the LLC to source inventory is one. So virtually every non-US Amazon seller with a US LLC must file by April 15.
Most foreign sellers open a US LLC to get a clean payout account, a US business identity, and access to Amazon’s North American marketplace. The moment a non-US person owns at least 25% of a US LLC and that LLC has a reportable transaction with the owner, IRC §6038A requires a Form 5472. Because you cannot launch an Amazon FBA business without moving money into the LLC, the reportable transaction nearly always exists in year one. See our deep dive on the foreign-owned single-member LLC rules.
We say “virtually every” rather than “every” on purpose: the obligation is tied to a reportable transaction, not to ownership alone. In practice, an active Amazon seller has one, so the safe assumption is that you must file.
When you wire money into your own US LLC, you and the LLC are related parties, and the transfer is a capital contribution. That is a reportable transaction under IRC §6038A, so even a brand-new FBA LLC with $0 in sales must file.
A foreign-owned single-member LLC is a disregarded entity, but since 2017 (final regulations under T.D. 9796) it is treated as a corporation solely for Form 5472 reporting. That means transactions between you and your LLC must be disclosed. Sending startup capital to buy your first batch of FBA inventory, paying the LLC’s formation invoice from your personal account, or lending the LLC money are all reportable.
| Transaction | Reportable on Form 5472? | Where it appears |
|---|---|---|
| Wiring capital to launch inventory | Yes — capital contribution | Part V / Part VI |
| Paying LLC formation fee personally | Yes — amount paid on behalf of LLC | Part V |
| Owner loan to the LLC | Yes — loan / advance | Part VI |
| Owner draw / distribution to you | Yes — distribution | Part V / Part VI |
| Amazon paying the LLC for customer sales | No — that is a third party, not a related party | — |
Source: IRC §6038A; IRS Instructions for Form 5472. Verified June 2026.
The dollar amounts land on a pro forma Form 1120 that wraps the Form 5472. The 1120 is a near-blank cover form — it carries your name, EIN, and a note that Form 5472 is attached.
You file Form 5472 attached to a pro forma Form 1120. It is an information return, not a tax-payment return. A disregarded-entity LLC owes $0 in US corporate tax on the form itself; it simply discloses related-party amounts.
This is the part that confuses most Amazon sellers. You are not filing a normal corporate tax return and you are not paying corporate tax through this form. You are filing a disclosure: who owns the LLC, what country they are in, and the dollar value of transactions between you and the LLC. Whether you owe US income tax on your Amazon profits is a separate question that depends on whether you have effectively connected income or a US trade or business — Form 5472 itself is reporting, not assessment.
“Pro forma” means a placeholder. Only the top identifying lines of the 1120 are filled in; the income and deduction lines stay blank. Form 5472 is stapled behind it. Together they satisfy the §6038A requirement. Read the full mechanics on our pro forma 1120 page.
For the 2025 tax year, the deadline is April 15, 2026, filed with the pro forma Form 1120. Filing Form 7004 by that date extends it 6 months to October 15, 2026. Sales volume does not change the date.
The deadline is the 15th day of the 4th month after the LLC’s tax year ends — April 15 for a calendar-year FBA business. Many sellers wrongly assume a slow store buys them more time; it does not. The extension to October 15 is a filing extension, not a payment extension, and a disregarded LLC has no entity-level tax to pay anyway.
| Item | Date |
|---|---|
| Form 5472 + pro forma 1120 due | April 15, 2026 |
| File Form 7004 to extend by | April 15, 2026 |
| Extended deadline with Form 7004 | October 15, 2026 |
Source: IRS Instructions for Form 5472 and Form 7004. Verified June 2026.
You cannot e-file. The pro forma Form 1120 with Form 5472 attached must be mailed to P.O. Box 149342, Austin, TX 78714-9342, or faxed to 855-887-7737. Keep the certified-mail receipt or fax confirmation as proof of timely filing.
There is no electronic filing path for a foreign-owned disregarded entity, which trips up sellers used to doing everything online. The only two accepted methods are mail and fax. From outside the US, fax is usually faster and gives an instant transmission confirmation you can save. Whatever you choose, it must arrive by the deadline.
| Method | Where | Proof to keep |
|---|---|---|
| P.O. Box 149342, Austin, TX 78714-9342 | Certified-mail receipt | |
| Fax | 855-887-7737 | Fax transmission confirmation |
Source: IRS Instructions for Form 5472 (foreign-owned U.S. DE). Verified June 2026.
If mailing from abroad feels risky given Amazon’s deadlines, a specialist can prepare and file it for you for a flat $299 — start on the apply page.
The penalty is $25,000 per form, per year, under IRC §6038A(d) — with no cap and no statute of limitations (§6501(c)(8)). An extra $25,000 accrues every 30 days after a 90-day IRS notice goes unanswered.
This is one of the harshest information-return penalties in the tax code, and it does not care that your Amazon store is small or unprofitable. Because there is no statute of limitations on an unfiled information return, a year you skipped three years ago can still be assessed today. Two missed years can mean a starting penalty of $50,000 before any add-on amounts. Read the full rule on the Form 5472 penalty page.
The good news: filing on time costs nothing in IRS fees. The penalty only exists for missing the form or filing it materially wrong, which is exactly why getting it prepared correctly matters more than the price.
The IRS charges $0 to accept the form, but one mistake costs $25,000. Specialist services range from $299 (form5472.tax) to $547 (form5472.online) to $1,999/year (doola) for the same Form 5472 plus pro forma 1120.
Doing it yourself is free but unforgiving — the $25,000 penalty applies to an honest mistake or a missed deadline just the same. For a flat $299, form5472.tax prepares your Form 5472 and pro forma Form 1120, reviews it, and files it correctly, saving $248 versus form5472.online and far more versus bundled providers.
| Provider | Price | What you get |
|---|---|---|
| form5472.tax | $299 flat | Form 5472 + pro forma 1120, prepared and filed |
| form5472.online | $547 | Form 5472 + pro forma 1120 |
| Firstbase (annual compliance) | $999–$1,499/year | Bundled compliance package |
| doola (annual compliance) | $1,999/year | Bundled compliance package |
Source: published competitor pricing. Verified June 2026.
See the side-by-side on the pricing page.
The top errors are assuming no sales means no filing, trying to e-file, missing the April 15 deadline, and forgetting the pro forma 1120. Each can expose you to the $25,000 penalty, so all four are worth avoiding.
The single most common mistake is believing a dormant or low-revenue Amazon store is exempt. It is not — funding the LLC already created a reportable transaction. The second is attempting to e-file; the third is forgetting the form entirely because it does not feel like a “tax return.” The fourth is filing Form 5472 by itself without the pro forma 1120 cover, which the IRS will not process correctly.
For a complete, beginner-friendly walkthrough aimed at online sellers, see our guide for e-commerce founders, and if you sell on more than one platform, the Shopify seller guide covers the same rules.
Form 5472 and pro forma 1120 for your FBA LLC, prepared, reviewed, and filed for a flat $299. Or message us first — we answer every question.