By Alexander Stylianoudis
Form 5472 for Foreign-Owned LLCs: The $25,000 Penalty Nobody Mentions at Checkout
If you are a non-US resident who owns a single-member US LLC, there is a very good chance you owe the IRS a form called 5472 every year. You may be thinking: last year I made no income and had no expenses, so surely I don't have to file anything. That assumption isn't just wrong, it could cost you up to $25,000 in penalties for the missed filing.
Form 5472 is a five-figure obligation attached to the LLC the moment a foreign person owns it. Here is who has to file, when, what happens if you don't, and a quick checker to see whether it applies to you.
This article is for general information only and does not constitute legal, tax, or financial advice. Laws and regulations change frequently. Consult a qualified professional before making decisions based on this content.
Do you need to file Form 5472?
What Form 5472 actually is
Form 5472 is an information return. Its full name is the "Information Return of a 25% Foreign-Owned U.S. Corporation or a Foreign Corporation Engaged in a U.S. Trade or Business." It does not calculate tax. It reports transactions between a US business and its foreign owners or related parties, so the IRS can see money moving across the border.
The part that catches foreign founders out is a rule that took effect for tax years beginning in 2017. Before then, a single-member LLC owned by a foreigner was invisible to the IRS for this purpose, because a single-member LLC is a "disregarded entity" with no separate tax return. The Treasury closed that gap. A foreign-owned single-member US LLC is now treated as a corporation purely for Form 5472 reporting, which means it has to file Form 5472 together with a pro-forma Form 1120, every year, whether or not it made a cent.
Now, to be clear, the pro-forma 1120 is not your usual fifty-page tax return. It is usually a page or two: you fill in the top of the form to identify the company and attach the 5472, rather than reporting corporate income. The LLC is not paying corporate tax by filing it. It is simply reporting. But do not read "only a page or two" as "optional." It most certainly is not.
Who has to file
Three situations trigger Form 5472. The first is the one most readers of this page fall into.
A foreign-owned single-member US LLC. If a non-US person or foreign company owns your single-member LLC, and there was any reportable transaction during the year, you file Form 5472 plus a pro-forma 1120. Reportable transactions are broad: money you contributed to start or fund the company, money you took out, loans, and payments between you and the LLC all count. In practice, forming and funding the LLC is itself usually a reportable transaction, so the "even with zero revenue" case still files.
A US corporation that is 25% or more foreign-owned. If at least a quarter of a US C-corp is owned by foreign shareholders and it had a reportable transaction with a foreign related party, it attaches Form 5472 to its regular Form 1120.
A foreign corporation engaged in a US trade or business. A non-US corporation that actually does business in the US and has reportable transactions with related parties files too. Whether an activity rises to a "US trade or business" is a facts question worth a professional's read.
The common case that does not file 5472 is a multi-member LLC. Two or more owners make the LLC a partnership by default, which files Form 1065 and issues K-1s rather than filing Form 5472. Foreign partners can trigger their own withholding paperwork (Forms 8804 and 8805), so it is not that a multi-member LLC is simpler, only that it is on a different track. If you went from one owner to two to dodge 5472, understand you swapped one filing regime for another.
The $25,000 penalty
This is why the form is worth a dedicated page. The penalty for failing to file Form 5472, or for failing to keep the records that support it, is $25,000 per form, per year. If the IRS sends a notice and the form still is not filed, another $25,000 accrues for each 30-day period after the 90-day mark, with no ceiling. A foreign owner who ignored the form for three years is not looking at a late fee. They are looking at $75,000 or more.
Two things make this dangerous for exactly the audience it targets. First, the obligation is invisible at the point of sale: the formation checkout that costs $50 to $300 says nothing about a form due the following spring. Second, the penalty does not scale with revenue. A dormant LLC that earned nothing owes the same $25,000 for a missed 5472 as one that earned half a million. The form is about reporting, not income, so "I made no money" is not a defense.
There is a first-time penalty abatement path and reasonable-cause relief in some situations, but both are discretionary and require a professional to pursue. Filing on time is dramatically cheaper than arguing your way out later.
The deadline
Form 5472 is filed with the entity's income tax return, so its deadline follows that return. For a foreign-owned single-member LLC on a calendar year, the pro-forma Form 1120 and the attached 5472 are due April 15. You can extend to October 15 by filing Form 7004 before the April deadline. The 1120 for a corporation follows the same calendar.
One prerequisite trips people up: the LLC needs an EIN (Employer Identification Number) to file, and getting an EIN as a non-US applicant without a Social Security Number can take the IRS several weeks by fax or mail. If you formed late in the year, start the EIN process early so you are not blocked at the April deadline.
How filing actually works, honestly
Form 5472 is not a form to freehand. The pro-forma 1120, the reportable-transaction categories, and the related-party disclosures have specific rules, and the penalty for getting it wrong is the same as for not filing. This is the one part of running a foreign-owned LLC where paying a specialist is clearly worth it. Which option fits depends on where you are.
If you already have the LLC and just need the filing done, the leanest route is a service that does almost nothing else. Specialists like form5472.online prepare and file the 5472 plus pro-forma 1120 as a flat-fee, done-for-you job, usually around $300, with the return signed by a licensed CPA. That CPA signature is the thing worth checking for at these stakes, whichever provider you pick. We earn nothing if you use one; it is simply the right fit when the filing is all you need. A cross-border CPA is the fuller version of the same route, roughly $300 to $800 a year for a simple LLC, and worth it once your situation has any real complexity.
If you have not formed the LLC yet, or you would rather never track a federal deadline again, doola is the cleaner path. It is built specifically for non-US founders and rolls the whole lifecycle into one plan: formation, EIN, registered agent, bookkeeping, the annual Form 5472 and pro-forma 1120, business tax filing, and the state and sales-tax filings that come due through the year. For a founder who would rather have one provider quietly keep the LLC compliant than assemble a CPA, a bookkeeper, and a registered agent separately, that year-round bundling is the real value, and it means the 5472 is handled as a matter of course rather than something you have to remember. (doola is an affiliate partner, so we may earn a commission if you sign up through that link. We would flag the 5472 obligation either way: the $25,000 penalty is the IRS's, not ours.)
Whichever route you take, the logic is the same. Do not let the filing lapse to save a few hundred dollars against a $25,000 downside.
That figure is the honest running cost of a foreign-owned US LLC, and it dwarfs the state-fee differences people agonize over. When you compare a New Mexico LLC at $0 a year in state fees against a Wyoming LLC at $60, remember both sit underneath an identical Form 5472 obligation that costs several hundred dollars to satisfy and $25,000 to ignore. Choose the state in five minutes; budget seriously for the filing.
Where this fits in the bigger picture
Form 5472 is a compliance obligation, not a reason to avoid a US LLC. Plenty of non-residents run these cleanly for years. It is simply the line item that the cheap-and-fast formation funnel leaves out, and the one worth knowing before you form rather than after.
If you are still deciding whether you even need a US entity, Non-US Founder, US Company: When You Actually Need One walks through that from the top, and the free quiz scores your specific profile in about five minutes.
FAQ
Do I have to file Form 5472 if my LLC made no money?
Yes, in almost all cases. A foreign-owned single-member US LLC files Form 5472 with a pro-forma Form 1120 based on reportable transactions, not income. Contributing the capital to start the LLC, paying its formation costs, or moving any money between you and the company counts as a reportable transaction, so a dormant or zero-revenue LLC still typically files. The $25,000 penalty applies regardless of revenue.
What is the penalty for not filing Form 5472?
$25,000 per form, per year, for failing to file or to keep the required records. If the IRS issues a notice and the form remains unfiled, an additional $25,000 applies for each 30-day period after the notice, with no maximum. The penalty does not depend on how much the company earned.
When is Form 5472 due?
It is filed with the entity's income tax return. For a foreign-owned single-member LLC on a calendar year, the pro-forma Form 1120 and attached Form 5472 are due April 15, extendable to October 15 by filing Form 7004 in advance. The LLC needs an EIN to file, which can take several weeks to obtain as a non-US applicant.
Does a foreign-owned single-member LLC pay US tax by filing Form 5472?
Not by itself. The pro-forma Form 1120 that accompanies Form 5472 is an information filing, not a corporate tax return, so filing it does not create a corporate tax bill. Whether the LLC owes any US tax depends on whether it has US-source effectively connected income, which is a separate question from the 5472 reporting obligation.
Do multi-member LLCs file Form 5472?
Generally no. A multi-member LLC defaults to a partnership and files Form 1065 with K-1s rather than Form 5472. Foreign partners can trigger separate withholding filings (Forms 8804 and 8805). Adding a second owner changes which filing regime applies; it does not remove the obligation to file something.
Can I file Form 5472 myself?
You can, but the reportable-transaction rules and the pro-forma 1120 have specific requirements, and the penalty for an incorrect or incomplete filing is the same $25,000. Because the downside is large and the annual cost of a specialist is modest (roughly $300 to $800 for a simple LLC), most foreign owners have a cross-border accountant prepare it.
Sources
Primary sources for the rules cited in this article:
About the author
Alexander Stylianoudis · Legal and Financial Executive
Alexander has spent over 15 years working with US, UK, Canadian, and European companies. He built IncorpAssist after getting tired of searching for objective incorporation guidance and finding formation-service marketing instead.