Form 5472 is the informational return every foreign-owned US LLC with reportable transactions must file - attached to a pro forma Form 1120, even when the LLC owes no US tax. The penalty for skipping it is $25,000. This Anonymousllc.co reference walks through who files, the parts of the form, what counts as a reportable transaction, the filing mechanics, deadlines, and the common mistakes that trigger the penalty. Primary-source citations are linked throughout.
Form 5472 (Information Return of a 25% Foreign-Owned U.S. Corporation or a Foreign Corporation Engaged in a U.S. Trade or Business) is an informational return the IRS requires from every disregarded-entity US LLC with at least 25% foreign ownership that had reportable transactions in the tax year. It reports the dealings between the LLC and its foreign owner. A foreign-owned single-member LLC files Form 5472 attached to a pro forma Form 1120 even when it owes no US tax. The form is informational, not a tax computation - its purpose is transparency into related-party transactions, and the penalty for skipping it is severe.
Three groups file Form 5472: foreign-owned US single-member LLCs with reportable transactions, US C-corporations that are at least 25% foreign-owned with reportable transactions, and foreign corporations engaged in a US trade or business. A single-member LLC treated as a corporation files as a US corporation. The trigger is 25% foreign ownership plus at least one reportable transaction. For a non-resident-owned single-member LLC, the initial capital contribution that formed and funded the LLC is itself a reportable transaction - so nearly every such LLC has a filing obligation from year one.
Form 5472 has seven parts: Part I (reporting corporation - the LLC's name, address, EIN), Part II (the 25% foreign shareholder's name, address, country, and taxpayer ID if any), Part III (related parties other than the owner), Part IV (monetary transactions - purchases, sales, rents, royalties, loans, interest), Part V (reportable transactions), Part VI (additional information), and Part VII (cost-sharing arrangements, which are rare). A foreign-owned single-member LLC completes Parts I, II, and V at minimum. The remaining parts apply where the LLC has the transactions or relationships they describe.
A reportable transaction is any monetary or non-monetary dealing between the LLC and a related party - the foreign owner or another entity the owner controls. It includes capital contributions, distributions, loans in either direction, interest, rents, royalties, sales, and reimbursements. The most-missed reportable transaction is the initial formation funding: the money the owner puts in to form and capitalize the LLC. Omitting it is one of the most common 5472 errors and can void an otherwise-timely filing. Part V is where these transactions are reported.
For a foreign-owned disregarded-entity LLC, Form 5472 must be attached to a pro forma Form 1120. Write "Foreign-owned U.S. DE" across the top of the 1120 and complete only the name, address, and EIN lines; the rest of the 1120 stays blank. The disregarded LLC is not filing a corporate income tax return - the 1120 is only the carrier for the 5472. Anonymousllc.co's tax-compliance partners assemble the pro forma 1120 and 5472 together to avoid the most common rejection.
Form 5472 is due by April 15, or the extended due date if the LLC files Form 7004 for an extension. The pro forma Form 1120 with the attached 5472 is mailed or faxed to the IRS service center in Ogden, UT. Filing to the wrong service center is a recurring error - the Ogden center handles these foreign-owned disregarded-entity filings. Anonymousllc.co tracks the due date, files Form 7004 where an extension is needed, and confirms IRS receipt.
IRC § 6038A imposes a $25,000 minimum penalty for failure to timely file Form 5472, with additional $25,000 penalties for continued non-compliance after IRS notice. It is one of the highest base penalties in the US tax code and applies even when the LLC owes no income tax. The penalty attaches to the failure to file, not to any tax due - so a non-resident single-member LLC with no US income still faces $25,000 for a missed 5472. Anonymousllc.co's tax-compliance partners file 5472 for non-resident clients as part of annual maintenance to keep the obligation covered.
A disregarded entity is a single-member LLC the IRS does not treat as separate from its owner for income tax - the LLC's activity flows to the owner. A foreign-owned single-member LLC is a foreign-owned disregarded entity, and that status is what triggers the Form 5472 requirement. Because the disregarded LLC files no income tax return of its own, Form 5472 rides on a pro forma Form 1120 as its carrier. The 25% foreign-ownership test and the disregarded-entity status together define who must file. Anonymousllc.co's tax-compliance partners confirm the classification before preparing the return.
No. Form 5472 is an informational return, not a tax computation - filing it does not by itself create or increase US tax. A foreign-owned disregarded-entity LLC files the 5472 to report related-party transactions even when it owes no US income tax. The filing obligation and any income-tax liability are separate questions. An LLC with no US-source effectively connected income still files the 5472, and one with such income addresses the tax on the appropriate return. Anonymousllc.co's tax-compliance partners handle the 5472 alongside any income-tax filing that applies.
The top mistakes are skipping Form 5472 because the LLC had no US income (it is required regardless of income), filing the 5472 without the pro forma Form 1120 (which gets rejected), using the wrong country code in Part II, omitting the formation funding as a reportable transaction, and mailing to a service center other than Ogden, UT. Each of these either triggers the $25,000 penalty or invalidates the filing. Anonymousllc.co's checklist sequences the 5472 with the pro forma 1120 and confirms the country code and Ogden routing before submission.
Anonymousllc.co's tax-compliance partners file Form 5472 for non-resident clients as part of annual maintenance. They assemble the pro forma Form 1120 and attach the 5472, report the formation funding and other reportable transactions in Part V, and mail the package to the Ogden, UT service center. The team tracks the April 15 deadline, files Form 7004 where an extension is needed, and confirms IRS receipt. Formation itself runs at Anonymous LLC $397 all-in, with the EIN required for the 5472 included at no extra cost.
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