ECOM CPA | Published April 2026
Between 2019 and 2024, tens of thousands of non‑US sellers formed single‑member Delaware or Wyoming LLCs to sell on Amazon US, Shopify, and Walmart. The playbook was straightforward: a US LLC gave them a US bank account, a US EIN, and access to the largest consumer market on Earth without creating US income tax liability, provided they had no US office and no US employees. For years, the IRS largely ignored Form 5472—the information return those foreign‑owned LLCs are required to file. That ignore‑and‑move‑on period is over.
In 2026, the combination of automated IRS penalty notices, FinCEN data sharing, and OBBBA’s new 1% remittance tax is creating serious exposure for foreign‑owned ecommerce LLCs—and for the US CPAs who service them. Here is what changed and what to do about it.
Who this actually touches
Form 5472 applies to two types of entities:
- A US corporation that is at least 25% foreign‑owned.
- A foreign corporation engaged in a US trade or business.
Critically, a foreign‑owned single‑member LLC is treated as a corporation for Form 5472 purposes under the 2017 regulations, even though it is otherwise disregarded for income tax. That is the rule that catches most Amazon sellers: the LLC owes no income tax, but it still has to file Form 5472 plus a pro forma Form 1120 every year.
A ‘reportable transaction’ is basically any flow of money between the LLC and its foreign owner or related parties: capital contributions, distributions, loans, loan repayments, inventory purchases from a related‑party supplier, services received, royalties, you name it. The threshold is $0—every reportable transaction must be disclosed.
What changed in 2026
1. Automated penalty notices
The base penalty for failing to file or filing incorrectly is $25,000 per form per year. For years, that penalty was assessed inconsistently. In 2026, the IRS has automated the initial penalty notice and the ‘90‑day continuity notice’ that stacks an additional $25,000 per 30‑day period after the first. There is effectively no human judgment in the first two rounds; if the return is missing or the system flags it as deficient, the notice is generated.
We have seen client situations in Q1 2026 where a seller missed three consecutive years of Form 5472 and received an initial $75,000 assessment that grew to $150,000 before anyone opened the envelope. Penalty abatement is possible but not automatic—and it requires a substantive reasonable‑cause argument, not just ‘I didn’t know.’
2. FinCEN data matching
The Corporate Transparency Act, despite its on‑again‑off‑again enforcement status, produced a FinCEN beneficial‑ownership database that now shares data with the IRS. In 2026, the IRS cross‑references the ‘foreign person’ named on Form 5472 against the beneficial owner reported to FinCEN. Mismatches trigger correspondence audits. Sellers who used nominee arrangements or outdated ownership information on one filing but not the other are already showing up in this net.
3. OBBBA’s 1% remittance tax
The One Big Beautiful Bill Act (OBBBA), enacted in late 2025, imposes a 1% federal tax on certain cross‑border money transfers. The rule is still being fleshed out by Treasury, but the working version hits non‑banking cross‑border transfers originated by non‑US persons or by entities beneficially owned by non‑US persons. For an Amazon seller’s Delaware LLC that sweeps its Amazon payout to a foreign‑owned bank account every two weeks, the 1% tax becomes a material drag on margin. On a $3M annual payout cycle, that is $30,000 of new cost.
4. Tougher FTIN requirements
OBBBA also tightened foreign taxpayer identification number (FTIN) requirements on Forms W‑8BEN and W‑8BEN‑E. Payments processors and marketplaces that cannot validate a proper FTIN will increasingly apply 30% backup withholding on US‑source payments to foreign payees—which includes certain marketplace payouts to foreign‑owned sellers.
A concrete example
Consider a UK‑resident individual who owns 100% of a Delaware LLC. The LLC sells on Amazon US, does $4M in gross sales, and has roughly $3M in Amazon disbursements after fees. The LLC buys inventory from a related‑party UK manufacturer. Historically, the UK owner has taken quarterly distributions to a UK bank account.
Here is what 2026 looks like for this entity under the new rules:
| Item | 2026 impact |
| Form 5472 filings required | 1 per year (LLC) + pro forma 1120 |
| Reportable transactions disclosed | Inventory POs, distributions, any owner loans—every flow |
| Penalty if missed or incorrect | $25K initial + $25K per 30 days of continuing failure |
| OBBBA 1% remittance on distributions | ~$30,000 at a $3M annual distribution level |
| FTIN exposure on marketplace payouts | Potential 30% withholding if Amazon cannot validate W‑8BEN |
| FinCEN / IRS matching | Beneficial owner name on Form 5472 must match FinCEN filing |
The compliance checklist for 2026
1. Confirm your filing status
If you are a non‑US person who owns 25% or more of a US LLC or corporation that has any transaction with you or a related party during the year, you have a Form 5472 filing obligation. If the entity is a disregarded LLC, you also file a pro forma Form 1120. The due date is the corporate due date (April 15 for calendar‑year entities) plus extension.
2. Reconcile FinCEN beneficial ownership
Pull the FinCEN beneficial ownership information report (BOIR) for the entity and make sure the individual named as the foreign owner matches the ‘foreign person’ on Form 5472. Any name, address, or ownership percentage mismatch is an audit trigger in 2026.
3. Map every reportable transaction
Build a schedule that captures: capital contributions in, distributions out, related‑party inventory purchases (invoice by invoice), management or service fees, loans, loan interest, royalties, and any other flow between the entity and the owner or their affiliates. Document transfer pricing for the inventory purchases—even a simple cost‑plus memo is better than nothing.
4. Plan around the 1% remittance tax
Foreign‑owned LLCs with regular distribution cycles should revisit their cash management: fewer, larger distributions may be more efficient than frequent small ones because the administrative burden of the 1% tax scales with the number of transactions. In some cases, keeping more working capital inside the US entity and distributing annually makes more sense than the old sweep‑every‑two‑weeks pattern.
5. Refresh W‑8BEN / W‑8BEN‑E on every marketplace
Every marketplace (Amazon, Walmart, Shopify Payments, Stripe, PayPal) has its own W‑8 renewal cycle. Make sure the FTIN on file is valid under OBBBA’s tightened standards. An expired or invalid FTIN plus 2026 enforcement equals 30% backup withholding on your payouts—recoverable, but only after the fact and only with a correctly filed return.
6. If you missed prior years, consider the streamlined approach
For sellers who have missed Form 5472 filings in prior years, the IRS has historically accepted voluntary late filings with reasonable‑cause statements, which can result in penalty abatement. The window for doing this quietly—before an automated notice lands—is closing fast in 2026.
The bottom line
Form 5472 is not a new rule. What is new is that the IRS has finally built the infrastructure to enforce it at scale, and OBBBA has added a 1% tax on the very money movements that drive most foreign‑owned ecommerce structures. Sellers and their CPAs who are still treating 5472 as a low‑priority information return are walking into six‑figure penalty assessments.
At ECOM CPA, we work with foreign‑owned ecommerce sellers on Form 5472 compliance, transfer pricing documentation for related‑party inventory, FinCEN reconciliation, and OBBBA remittance planning. If your structure involves a non‑US owner and a US LLC, 2026 is the year to get the filings in order before an automated notice does it for you.
