Foreign-owned US LLC? You may owe $0 in tax — but still must file
It's the single most expensive misunderstanding for non-resident founders: believing that "no US income" or "disregarded entity" means "nothing to file." It doesn't. Miss one form and the penalty starts at $25,000 — even if your LLC never made a dollar. Here's the catch, and how to stay clear of it.
Say you're a non-US resident. You form a Delaware or Wyoming LLC, get an EIN, open a US bank account, and fund it. Maybe you sell a bit, maybe you don't. At year end you think: my LLC is a "disregarded entity," I have no US customers, I owe no US tax — so there's nothing to do.
That reasoning is exactly the trap. Since 2017, a foreign-owned US LLC that is otherwise ignored for income tax is treated as a corporation for one specific purpose: the information return called Form 5472. Skip it, file it late, or file it incompletely, and the IRS penalty starts at $25,000 — regardless of income, and regardless of how tiny or dormant the LLC is.
Check your situation
Answer these and the tool sorts the two questions for you — whether you must file Form 5472, and whether you actually owe US income tax. It's a guide, not a determination.
Why a "disregarded" LLC still has to file
For income tax, a US single-member LLC is a disregarded entity — the IRS looks straight through it to the owner. But in 2017, Treasury issued regulations (§1.6038A-1) treating a foreign-owned disregarded entity as a separate corporation solely for Form 5472 reporting. Overnight, thousands of small non-resident-owned LLCs — Amazon sellers, SaaS founders, consultants — were pulled into the reporting system.
So the LLC files an information return even though it pays no corporate tax. In practice that means Form 5472 attached to a "pro forma" Form 1120 — a stripped-down 1120 that carries only identifying details (with "Foreign-owned U.S. DE" written across the top), not a full corporate tax computation.
The mechanics that trip people up
| What you file | Form 5472 + a pro forma Form 1120 (one 1120; a separate 5472 for each related party) |
| How | Mail or fax only — foreign-owned disregarded entities cannot e-file this |
| When | April 15 for calendar-year LLCs; six-month extension to October 15 via Form 7004 |
| Prerequisite | An EIN — obtainable even without an SSN or ITIN |
| Penalty | $25,000 per form, per year; +$25,000 per 30 days if unresolved 90 days after IRS notice; no maximum cap |
What counts as a "reportable transaction"
The filing trigger isn't profit — it's whether a reportable transaction occurred between the LLC and its owner or another related party. The list is broad, and this is where the "but my LLC was dormant" defense usually collapses:
- Money you put in — capital contributions, or simply funding the bank account.
- Money you take out — distributions to yourself.
- Loans either direction, and interest on them.
- Payments — the LLC paying you or a related company, or you paying the LLC's expenses personally.
- Formation and dissolution costs, and amounts paid to set up or wind down the entity.
So when do you actually owe US tax?
This is the flip side, and the reassuring part for many founders: filing Form 5472 does not mean you owe tax. Whether US income tax is due turns on the type and source of your income:
- Effectively connected income (ECI) — profit from a US trade or business (say, staff or operations in the US) is taxed at graduated rates. The foreign owner reports it on Form 1040-NR (individuals) or Form 1120-F (foreign corporations).
- US-source passive (FDAP) income — US dividends, rent, royalties or interest are generally subject to 30% withholding, which a tax treaty may reduce.
- Neither? A non-resident running an online business from abroad, with no US trade or business and no US-source income, often owes $0 in US federal income tax — and still must file Form 5472.
The other filings founders forget
Beneficial ownership (BOI): the rule flipped in 2025
Under a FinCEN interim final rule published March 26, 2025, all entities created in the United States — and their beneficial owners — are now exempt from beneficial ownership (BOI) reporting under the Corporate Transparency Act. The rule was narrowed so that only entities formed under foreign law and registered to do business in a US state are "reporting companies."
The deciding factor is where the entity was formed, not who owns it. A non-resident who forms a US LLC is on the exempt side. Two cautions: this is an interim rule that could change, so monitor FinCEN; and BOI is a separate regime from Form 5472 and from the beneficial-ownership form your bank collects at account opening — don't confuse the three.
State filings, BEA surveys, FBAR and more
State annual reports and franchise tax. Your state of formation wants its own filing — for example, Delaware's annual LLC franchise tax. Miss it and the LLC can fall out of good standing.
BEA surveys. The US Bureau of Economic Analysis runs mandatory foreign-direct-investment surveys (such as the BE-13 for new investments and the five-yearly BE-12 benchmark). These are separate from anything the IRS requires.
FBAR. If the LLC holds foreign financial accounts above the threshold, an FBAR may be required.
Registered agent and sales tax. You must maintain a registered agent, and if you create sales-tax nexus in a state, registration and collection can follow.
What if the LLC has more than one owner?
A US multi-member LLC is generally taxed as a partnership, not a disregarded entity, so it usually files Form 1065 and issues K-1s rather than the 5472/pro forma 1120 combination. But foreign-owned partnerships carry their own international-reporting and withholding stack (for example, withholding on a foreign partner's effectively connected income). Different form, same message: the obligations don't disappear just because tax might be zero.
How to stay out of trouble
- Get an EIN early. You can obtain one without an SSN or ITIN — and you need it before you can file.
- Keep clean records of every owner transaction. Contributions, distributions, loans, expenses — these are exactly what Form 5472 reports.
- Calendar April 15 (or file Form 7004 for the extension to October 15). Don't rely on e-file — it's mail or fax.
- Separate "tax" from "filing." Owing $0 is common and fine; not filing is what triggers the penalty.
- Don't forget the state and BEA layers, and confirm your BOI position based on where the LLC was formed.
- If you've missed prior years, act before the IRS does. Reasonable-cause relief is far easier to argue before a penalty notice arrives than after.