A non-US owner of a US single-member LLC must file Form 5472 with a pro forma 1120 every year — even with zero US tax due. The penalty for missing it is $25,000.
If you're a non-US person who owns a US single-member LLC, here's the rule that catches thousands of founders every year: you must file Form 5472, attached to a pro forma Form 1120, every year the LLC has reportable transactions — even if the LLC owes zero US tax and earned nothing in the US at all. It's an information return, not a tax bill. But the penalty for not filing it is $25,000 per failure, and the IRS assesses it automatically.
This hits NRI founders, Amazon and Shopify sellers, and international consultants who formed a Wyoming or Delaware LLC for US market access, were told "single-member LLCs don't file returns," and believed it. That advice is true for US owners — a disregarded entity normally has no separate federal filing, as we explain in our single-member LLC tax guide. Foreign ownership flips the rule. If you're comparing entity choices from abroad, our pillar on LLC vs S Corp vs C Corp in 2026 covers the landscape (note that non-resident aliens generally can't own S corps at all).
Normally the IRS ignores a single-member LLC and looks straight through to the owner. But a foreign-owned disregarded entity is treated as a corporation solely for Form 5472 reporting purposes. Congress wanted visibility into money moving between US entities and their foreign owners, so the LLC must:
The package is due when a corporate return would be — with extensions available, so an extended filing runs on the extended 1120 timeline. Missing the deadline, filing an incomplete form, or failing to keep supporting records each expose you to the $25,000 penalty.
Owners often assume that a dormant LLC with no sales has nothing to report. Wrong — the definition of reportable transactions for a foreign-owned disregarded entity is broad and specifically includes:
In practice, almost every foreign-owned LLC has at least one reportable transaction every year — funding it, paying its state fees from your personal card, or pulling profits out are all enough. Assume you must file.
There's also a records requirement hiding behind the form: the LLC must maintain books sufficient to establish the accuracy of what's reported — bank statements, transfer records, invoices between you and the LLC. Keep a simple ledger of every owner-to-LLC and LLC-to-owner movement as it happens; reconstructing three years of transfers across international accounts at filing time is where these filings go wrong.
Form 5472 is disclosure, not tax. Whether you personally owe US income tax on the LLC's profits is a separate question, and the honest answer is: it depends on whether the income is effectively connected with a US trade or business (ECI) or otherwise US-source.
The e-commerce middle ground — say, an Amazon FBA seller with inventory in US warehouses — is genuinely gray, and reasonable professionals disagree on where the ECI line falls. Don't accept a one-line answer from a formation service in either direction. And US-source or not, your home-country obligations continue; for the personal side — residency status, FBAR-style disclosures in reverse, treaty credits — see the NRI's complete guide to US taxes.
A related trap: registering that LLC in additional states as it grows. State registration and state tax follow where you actually operate, and stacking registrations has its own costs — our guide to LLCs operating in multiple states explains when a second registration is actually required.
The $25,000 penalty is assessed per failure, per year — three missed years is exposure of $75,000, on an LLC that may have never earned a dollar. If you're behind:
Form 5472 is pure paperwork with a $25,000 price tag for skipping it. If a foreign person owns a US LLC, file it every year — whether or not a single dollar of US tax is due.
A foreign-owned single-member LLC must file Form 5472 with a pro forma 1120 annually, reporting even basic transactions like contributions and distributions, with a $25,000 penalty per failure. Whether the owner also owes US income tax is a separate ECI/US-source analysis that deserves real attention, not a forum answer.
Taxagon's CPAs and EAs handle 5472 filings, penalty relief, and the cross-border tax analysis for foreign founders through our NRI services — if you'd rather not navigate it alone, reach out.
This article is general information, not tax advice for your specific situation. Tax law changes; figures are for the years stated.
Talk it through with a licensed US tax professional — we'll tell you honestly whether it applies to your situation.
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