A U.S. LLC with no revenue, no employees, and no tax due can still owe the IRS a filing. That surprises most foreign owners. If you hold a U.S. company through a Hong Kong entity, a mainland China parent, or in your own name from abroad, the Form 5472 foreign-owned LLC rules probably apply to you.
The trigger is not income.
It is money moving between you and the company. For calendar-year filers that extended on time, the deadline is October 15, 2026. This guide covers who files, what counts as reportable, and what a missed filing costs.
Form 5472 is an information return under Sections 6038A and 6038C. It tells the IRS about transactions between a U.S. company and its related parties. It reports. It does not calculate tax.
The filer is called a “reporting corporation.” Under the Instructions for Form 5472, that means a 25% foreign-owned U.S. corporation (including a foreign-owned U.S. disregarded entity) or a foreign corporation engaged in a U.S. trade or business. A company is 25% foreign-owned when a foreign person owns at least 25% of its voting power or value, directly or indirectly.
Structure | Files Form 5472? | How |
Wholly foreign-owned single-member LLC (foreign-owned disregarded entity) | Yes, if it has a reportable transaction | Pro forma Form 1120 with Form 5472 |
U.S. corporation with a 25%+ foreign shareholder | Yes, if it has a reportable transaction | Attached to Form 1120 |
LLC electing corporate tax treatment, 25%+ foreign-owned | Same as above | Attached to Form 1120 |
Multi-member LLC taxed as a partnership | Outside the instructions’ definition; confirm classification | Different rules apply |
The first row catches people. Under final regulations, a foreign-owned disregarded entity is treated as a separate corporation for these limited purposes, for tax years beginning on or after January 1, 2017, and ending on or after December 13, 2017. Disregarded for income tax. Very much regarded for Form 5472. It is one of the common mistakes foreign-owned businesses make, and the label itself invites it.
In practice, “disregarded” can be one of the most misleading words in cross-border tax. It can reduce income tax filing requirements while creating separate information-reporting duties. Owners who assume that “disregarded” means there is nothing to file can discover the distinction only after an IRS notice arrives.
The rule has an off-ramp. A reporting corporation does not file if it had no reportable transactions. The catch is how wide the net is. A related party includes the 25% foreign shareholder, anyone related to the company or that shareholder under Section 267(b) or 707(b)(1), and anyone related under Section 482. Reportable transactions include sales, rents, loans, and interest. For a single-member LLC, the instructions add a catch-all: amounts paid or received in connection with the entity’s formation, dissolution, acquisition, and disposition, including contributions to and distributions from it.
Read that again. The wire that capitalizes the LLC is itself reportable.
So the “dormant LLC” defense is weaker than owners assume. Zero revenue is not zero reporting. A Hong Kong parent that capitalizes a California LLC to buy a property, then lends it more for renovations, has reportable transactions in year one, before a single tenant moves in. A foreign group buying a California hotel through a U.S. entity is in the same position.
Two practical rules help. File a separate Form 5472 for each related party that transacted with the company. And when exact figures are unavailable, a reasonable estimate (75% to 125% of the actual amount) is acceptable, while amounts with a foreign related party that total $50,000 or less for a transaction or series may be reported as “$50,000 or less.” Both come from the IRS instructions.
As a practical matter, treat every dollar that crosses between the owner and LLC as potentially reportable until a CPA confirms otherwise. This becomes especially important when the owner’s personal spending runs through the LLC account. What could have been a straightforward Form 5472 filing can quickly become a reconstruction of contributions, distributions, reimbursements, and other related-party transactions.
Form 5472 rides along with an income tax return and is due when that return is due, extensions included. A foreign-owned single-member LLC has no income tax return of its own, so it files a pro forma Form 1120 with Form 5472 attached. The only required entries on that Form 1120 are the entity’s name and address and items B and E on page one. Write “Foreign-owned U.S. DE” across the top.
A foreign-owned DE cannot e-file Form 5472. It must fax or mail the package to the dedicated IRS address in the instructions, not the usual Form 1120 address. Keep the fax confirmation or mailing receipt, because there is no e-file acknowledgment.
Extensions work the same way. File Form 7004 by the regular due date, enter the Form 1120 code on line 1 of Part I, and send it to the same dedicated address. For a calendar-year entity, the regular due date is April 15 and the extended date is October 15, 2026.
The Form 5472 penalty starts at $25,000. The IRS assesses it on any reporting corporation that fails to file when due and in the manner prescribed, and it applies equally to failing to keep the records required by Regulations Section 1.6038A-3. The instructions tie the penalty to the failure, not to any tax owed.
Two details change the math. A substantially incomplete Form 5472 counts as a failure to file, so a timely but thin form protects no one. And if the failure continues more than 90 days after IRS notification, an additional $25,000 applies for each related party, for each 30-day period (or part of one) after that window. Willful failures and false filings can also draw criminal penalties under Sections 7203, 7206, and 7207.
That makes this one of the more preventable high-cost compliance problems for a foreign-owned LLC. Preparing one form from organized bank statements and related-party records is far simpler than dealing with a flat assessment that does not depend on whether the LLC earned a dime. Closing the gap before a notice arrives matters because the additional-penalty clock starts with the notice.
Work through these in order.
ASAM LLP is a San Francisco CPA firm serving local and international clients since 1986. Our partner-led, bilingual English-Chinese team helps foreign-owned businesses determine whether they are subject to Form 5472 reporting, identify related-party transactions, and organize the required records. We work with real estate developers and investor groups, including groups with parent companies in Hong Kong and mainland China.
Our team can prepare Form 5472 and the pro forma Form 1120 when applicable, coordinate the filing with broader tax planning, and help address approaching deadlines. Contact Joyce Tso, CPA, at joyce.tso@asamllp.cpa or +1 (415) 788-2371. Learn more about when foreign investors need a U.S. CPA.
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