The official IRS instructions for Form 5472 run to many pages and are written for the case of a multinational group with dozens of related companies. If what you actually have is one US LLC that you own from abroad, most of that text, and most of the form's nine parts, do not apply to you.
This guide is the version for that reader. It covers the single most common case: a US single-member LLC, wholly owned by one non-US person, that has not elected to be taxed as a corporation. The IRS calls this a foreign-owned US disregarded entity, or foreign-owned US DE. If you are not sure whether the filing applies to you at all, start with you opened a US LLC from abroad: here is what you file, and come back here for the mechanics.
The misreading to clear up first
The instinct that gets founders into trouble is "the company had no activity, so there is nothing to report."
For a foreign-owned DE, the reportable transactions include amounts paid or received in connection with forming the entity, plus contributions to it and distributions from it. Which means the money you personally paid the formation service, the transfer you made to open the company bank account, and the transfer you took back out are each exactly the kind of thing this form exists to report. The company did not need a single customer for the filing to be triggered.
A situation we see in practice: a founder moves money from the LLC to their personal account to repay themselves for early inventory costs they had covered out of pocket. To them it is their own money moving between their own accounts. On this form, the original payment and the repayment are both reportable transactions between the entity and its foreign owner. Treating the LLC like a personal wallet does not create tax here, but every one of those movements belongs on the 5472.
The nine parts, and the ones that are yours
The form is organized into nine parts. For a single-owner foreign-owned DE, the work usually lives in four of them.
Part I, the reporting corporation. This is the LLC itself: name, address, EIN, country of organization, principal business activity. The LLC needs an EIN to file this form, and a foreign owner without a US Social Security Number cannot use the online EIN application, which is a fax-or-mail process worth starting early.
Part II, the 25% foreign shareholder. This is you. One owner holding everything is the simplest possible version of this part: your name, address, and the countries where you are a citizen and a tax resident. The form asks for a US or foreign taxpayer identification number for the owner.
Part III, the related party. The party the LLC transacted with. In the single-owner case that is almost always you again, so this part largely repeats Part II. That feels redundant, and it is. Fill it in anyway: the form is built for structures where the related party is a sister company rather than the owner.
Part V, reportable transactions of a foreign-owned US DE. This is the part that exists for your situation, and the reason the whole filing applies to disregarded entities at all. It catches the transactions Part IV does not: amounts connected to forming or dissolving the entity, contributions you made to it, and distributions you took from it. Formation fees you paid personally, the funding transfer, the repayment to yourself, they land here, described with amounts.
The parts you usually skip. Part IV is a monetary transaction table for things like sales, rents, royalties and interest paid between the company and the related party; if your LLC actually paid you interest or rent, it goes there, and many dormant or simple LLCs leave it empty. Part VI covers nonmonetary and less-than-full-consideration transactions. Parts VIII and IX deal with cost sharing arrangements and base erosion payments, which exist for large corporate groups. If you find yourself reading the base erosion instructions for a single-member LLC, you have gone too far.
The wrapper: a pro forma Form 1120
Form 5472 is never filed on its own. It rides as an attachment to a corporate income tax return, and since a disregarded entity has no corporate return of its own, the IRS has it file a pro forma Form 1120: name, address, EIN, and the words "Foreign-owned U.S. DE" written across the top. The 1120 carries no income numbers. Its whole job is to be the vehicle the 5472 arrives on.
Two mechanical points that surprise people every year:
- You cannot e-file it. A foreign-owned US DE files this package by fax or by mail only. The IRS publishes a dedicated fax number and an Ogden, Utah address in the form instructions, and faxing at 300 DPI or better is the faster of the two.
- Keep proof of sending. Because there is no e-file acknowledgment, your fax confirmation or mailing receipt is the record that the filing happened on time.
When it is due
The package is due when the reporting company's income tax return is due. For a calendar-year LLC that means April 15, and a six-month extension to October 15 is available by filing Form 7004. The extension has to be requested; unlike FBAR, nothing here extends automatically.
The penalty, without the fear-selling
The number the internet quotes is real: $25,000 for a form that is not filed when due, and it applies even when the company owes no tax at all. If the IRS notifies you of the failure and it continues past 90 days, a further $25,000 applies for each 30-day period after that, per related party.
What the scary articles skip is that the penalty attaches to not filing, not to filing imperfectly. A complete, on-time filing with a defensible description of the transactions is a quiet non-event. The exposure lives almost entirely with the founders who never heard of the form, which is why the useful move is filing, not agonizing over whether a transaction description is phrased perfectly.
If you are reading this with missed years already behind you, the answer depends on your facts. We would look at what was actually required year by year, whether reasonable cause exists for the miss, and what else the entity should have been filing, before anything gets sent.
The key points
If the form is still open in front of you, this is what to hold onto.
- One non-US owner, no corporate election: the LLC files Form 5472 on a pro forma 1120 marked "Foreign-owned U.S. DE".
- Formation costs paid personally, funding transfers, and repayments to yourself are reportable transactions. Zero revenue does not mean zero filings.
- Of the nine parts, a single-owner LLC usually completes Parts I, II, III and V.
- Fax or mail only. No e-filing for foreign-owned DEs, so keep the sending proof.
- Due April 15 for a calendar-year company, extendable to October 15 with Form 7004, and the extension must be requested.
- The $25,000 penalty is for not filing, not for filing imperfectly.
This is educational content, not personalized tax advice. If the form is sitting half-finished in front of you, or the deadline has already gone past, tell us your situation in one sentence and we will tell you what we would look at first.
Thresholds, deadlines and penalty amounts change every filing year. This guide is reviewed against the current year, and it is educational rather than advice about your own situation. Before you act on anything here, check it with us.