A U.S. LLC owned by one non-US person usually must file Form 5472, even in a year with no income. It is treated as a corporation for one narrow purpose: information reporting under IRS section 6038A. Any reportable transaction during the year (the owner's capital contribution counts) triggers the filing, attached to a pro forma Form 1120. Missing it risks a $25,000 penalty. General education, not tax advice.
A single-member U.S. LLC owned by a non-US person (a disregarded entity). Multi-member LLCs and corporations have their own related rules.
A reportable transaction with a related party, including money in or out and the entity's own formation or capital contributions. Most foreign-owned LLCs have one.
A $25,000 penalty for filing late or not at all, plus more if it stays unfixed after IRS notice. It applies even at zero income.
Form 5472 is one of the most missed filings for non-US founders, and one of the most expensive to get wrong. If you own a U.S. LLC by yourself from outside the United States, this information return can apply to you even in a year with no revenue. Here is who has to file, what counts as a reportable transaction, how the pro forma Form 1120 works, and when it is due.
This builds on the federal tax points in LLC vs. corporation and assumes you have, or will get, an EIN, which the LLC needs in order to file. It is part of setting up a U.S. company as a non-resident, and it is general education, not legal or tax advice.
What Form 5472 and the pro forma 1120 actually are
Form 5472 is an IRS information return used to report transactions between a U.S. business and its foreign related parties. It does not calculate or pay tax; it reports. The pro forma Form 1120 is a near-empty U.S. corporate return that exists only to carry the Form 5472. For a foreign-owned disregarded LLC, you complete just the LLC's name and address and items B and E, and write "Foreign-owned U.S. DE" across the top.
The reason a single-member LLC touches a corporate form at all is one narrow rule. Under final regulations for section 6038A, a U.S. disregarded entity that is wholly owned by a foreign person is treated as separate from its owner and classified as a corporation for the limited purpose of these reporting requirements. It stays a disregarded entity for income tax; it is treated as a corporation only for this report.
Who has to file, and who does not
The rule targets foreign ownership of U.S. entities, so whether Form 5472 applies depends on your entity type and who owns it.
Your U.S. entity | Does Form 5472 apply? |
|---|---|
Single-member LLC owned by one non-US person (a disregarded entity) | Yes, if it had a reportable transaction, filed with a pro forma Form 1120 |
U.S. corporation that is at least 25% foreign-owned | Yes, filed with its regular Form 1120 |
Multi-member LLC taxed as a partnership | Form 5472 generally does not apply; partnerships have separate foreign-reporting rules, so confirm with a professional |
U.S. LLC with no foreign owner | No, this rule does not apply |
This guide focuses on the first row, the foreign-owned single-member LLC, because that is the structure most non-US founders use and the one the 2017 regulations brought into scope.
"Related party" mainly means you, the foreign owner, but it can also include other businesses you or your family control. The purpose of the form is to give the IRS visibility into money moving between the U.S. LLC and those related foreign parties.
Why "no income" does not mean "no filing"
The most surprising point is that the trigger is a reportable transaction, not profit. A foreign-owned U.S. disregarded LLC must file if it had any reportable transaction with a related party during the year.
Reportable transactions are defined broadly. For these LLCs, the IRS specifically includes amounts paid or received in connection with the formation, dissolution, acquisition, and disposition of the entity, including contributions to, and distributions from, the entity. In plain terms, the money you put in to start or fund the LLC, and any money you take out, both count. So a brand-new LLC with no sales usually still has a reportable transaction in its first year.
Form 5472 is reporting, not a tax bill
Filing Form 5472 does not, by itself, create a U.S. tax bill. It is an information return: it tells the IRS about transactions between your LLC and you as its foreign owner. Whether you also owe U.S. income tax is a separate question that turns on what your business actually does in the United States, such as whether it has income effectively connected to a U.S. trade or business. Many non-US founders owe the filing but not income tax, and some owe both. Because that line is fact-specific, confirm your income-tax position with a qualified tax professional rather than assuming the Form 5472 filing settles it.
How to file Form 5472 for a single-member LLC
For a foreign-owned single-member LLC, the process is specific and cannot go through the IRS e-file system:
Get an EIN. The LLC needs its own EIN to file. See what an EIN is if you do not have one yet.
Prepare a pro forma Form 1120. Complete only the LLC's name and address and items B and E, write "Foreign-owned U.S. DE" across the top, and leave the income and tax sections blank.
Complete Form 5472. Report the foreign owner and the reportable transactions for the year.
File them together by fax or mail. Fax to 855-887-7737, or mail to the IRS unit in Ogden, Utah listed in the Form 5472 instructions. A foreign-owned disregarded LLC cannot e-file this.
Meet the deadline. The filing is due with the Form 1120, generally April 15 for an owner on a calendar year. You can request more time with Form 7004, filed by the regular due date.
Keep records. The same rules require keeping records that support what you reported.
The misconception we see most
Among non-US founders, one misunderstanding comes up more than any other: "my LLC made no money, so I have nothing to file." For income tax that can be true. But Form 5472 is not an income tax return, it is an information return, and it is triggered by transactions rather than profit. The founders who get caught are usually the ones who formed an LLC, moved in some startup capital, did not trade for a year, and assumed silence was safe. That capital contribution alone is often the reportable transaction. The filing is straightforward when it is on the calendar and costly when it is missed.
Quick FAQ
Do I have to file Form 5472 if my LLC had no income?
Often yes. The filing is triggered by a reportable transaction with a related party, not by profit, and a foreign owner's capital contribution usually counts. Many zero-income foreign-owned LLCs still have to file.
What is the penalty for not filing Form 5472?
$25,000 for filing late, incompletely, or not at all, and the same penalty can apply for failing to keep the required records. A further $25,000 can apply if the failure continues after the IRS notifies you.
When is Form 5472 due?
It is due with the pro forma Form 1120, generally April 15 for an owner on a calendar year. You can request an extension to October 15 by filing Form 7004 by the regular due date.
Can I e-file Form 5472 for my single-member LLC?
No. A foreign-owned U.S. disregarded entity cannot e-file this. You file the pro forma Form 1120 with Form 5472 attached, by fax to 855-887-7737 or by mail to the IRS address in the instructions.
Do I need an EIN to file?
Yes. The LLC needs its own EIN to file the pro forma Form 1120 and Form 5472.
Does filing Form 5472 mean I owe U.S. tax?
No. Form 5472 is information reporting, not a tax payment. Whether you owe U.S. income tax is a separate question that depends on your activities and your situation, and is best confirmed with a tax professional.
How this article was prepared
This guide was written for non-US founders by CORPBOLT and checked against IRS primary sources: the Instructions for Form 5472, the IRS pages for Form 5472 and Form 1120, and Form 7004 for extensions. The figures here, including the $25,000 penalty and the fax-or-mail filing method, come from those instructions, which can change. Confirm the current rules and your own obligations with a qualified tax professional, and see what CORPBOLT can and cannot advise on. It is general information, not legal or tax advice.