What Is Form 5472? (Foreign-Owned LLC Filing)
Form 5472 is an IRS information return that a foreign-owned U.S. business files to report transactions with its related foreign parties. Since 2017 it has applied to foreign-owned single-member LLCs, which must file it annually alongside a pro-forma Form 1120 — even when the LLC earned nothing and owes no U.S. tax. The penalty for missing it is $25,000, which makes this the single most expensive oversight available to non-U.S. founders.
Who has to file
The requirement applies to a U.S. LLC that is treated as a disregarded entity and is at least 25% owned, directly or indirectly, by a non-U.S. person or entity. In practice that means the very common setup of a non-resident founder owning a single-member Wyoming, Delaware, or New Mexico LLC.
It applies whether or not the LLC has income, whether or not it owes tax, and whether or not it has done much of anything. Even a dormant year with a single reportable transaction triggers the filing, and the initial capital contribution that funded the LLC is itself a reportable transaction.
Multi-member LLCs taxed as partnerships have different obligations — generally Form 1065 with K-1s and potentially withholding requirements — rather than the 5472 pro-forma 1120 combination. Corporations with 25% foreign ownership file Form 5472 with their actual Form 1120.
What gets reported
Form 5472 reports “reportable transactions” between the LLC and its related parties — meaning the foreign owner and entities connected to them. That includes money you put into the LLC, money you take out, loans in either direction, sales, services, rents, royalties, and payments of interest.
The most commonly missed items are the simplest ones: the founder’s initial contribution of capital and later transfers of profit to themselves. Founders frequently assume “no customers, no filing,” which is wrong — funding the LLC is already a reportable transaction.
The filing also requires the LLC to keep records adequate to establish the accuracy of what it reports, which in practice means maintaining real books rather than reconstructing the year from memory.
The pro-forma 1120 and the mechanics
A disregarded entity has no income tax return of its own, so the IRS requires a pro-forma Form 1120 as a cover sheet with Form 5472 attached. You complete only the identifying information on the 1120 — name, address, EIN — rather than the full corporate return, and write the required notation across the top per the instructions. It is not an election to be taxed as a corporation.
The LLC needs its own EIN to file, which non-U.S. owners can obtain without an SSN or ITIN by submitting Form SS-4. The due date generally follows the corporate deadline — April 15 for calendar-year filers, with a six-month extension available on Form 7004.
Filing is done by mail or fax to the specific IRS address in the instructions, not through the ordinary e-file channel. Verify the current address and procedure in the year you file, since these details change.
The penalty, and what it is not
Failure to file, or filing incomplete or inaccurate information, carries a $25,000 penalty per form per year. If the failure continues after IRS notice, additional penalties accrue. Multiple missed years multiply the exposure, and this penalty applies regardless of whether any tax was owed.
Filing Form 5472 does not by itself mean you owe U.S. tax. It is an information return. Whether the LLC’s income is taxable in the U.S. depends on separate questions — principally whether the income is effectively connected with a U.S. trade or business — which is where a cross-border tax professional earns their fee.
Note also that Form 5472 is entirely separate from BOI reporting under the Corporate Transparency Act. Changes to BOI rules have no effect on this obligation.
Key takeaways
- Foreign-owned single-member LLCs must file Form 5472 with a pro-forma Form 1120 every year.
- It applies even with zero income — the founder’s own capital contribution is a reportable transaction.
- The penalty is $25,000 per form per year, with more accruing after IRS notice.
- The LLC needs its own EIN; non-U.S. owners can get one via Form SS-4 without an SSN or ITIN.
- Filing the form does not mean you owe U.S. tax — that is a separate question about effectively connected income.
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