This guest post was developed in collaboration with Eneko Seriola, founder of Edetax. Genki keeps you covered wherever you go; Edetax keeps your US LLC on the right side of the IRS. Same mission, different paperwork.
This article is for educational purposes only and does not constitute tax, legal, or financial advice. Tax rules vary by jurisdiction and individual circumstances. Please consult a qualified tax professional before making decisions about your business structure.
You set up your US LLC. You got your EIN, opened a Mercury or Relay account, connected Stripe, and started invoicing clients from wherever you happen to be that month. Everything's running smoothly.
Then, maybe from a forum post or a nervous message from another nomad, you hear about a form you've never heard of. It's called Form 5472, and if you own a US LLC as a non-US person, the IRS expects it every single year. Miss it, and the penalty starts at $25,000.
This is the part of the US LLC story that formation services rarely mention up front. Not because they're hiding it, but because their job ends the moment your LLC is registered. What comes after is left for you to discover on your own. Often the hard way.
If you're still deciding whether a US LLC even makes sense for your situation, start with Genki's guide on whether US LLCs really save digital nomads on taxes. It covers the "should you" question. This one covers the "now what": the compliance side you'll need to handle once the LLC exists.
📄 What form 5472 actually is
Form 5472 is an information return. That distinction matters, so it's worth pausing on. The IRS uses it to collect information, not to calculate a tax you owe. Your foreign-owned single-member LLC probably doesn't owe US federal income tax on foreign-sourced income (that's the genuine tax benefit that draws nomads to the structure in the first place). But "no tax owed" and "no paperwork required" are two very different things, and conflating them is exactly what gets people into trouble.
Here's the mechanism. The IRS treats a foreign-owned single-member LLC as a "disregarded entity" for income tax, but as a corporation for reporting purposes. That means your LLC has to report certain transactions between itself and you, its foreign owner. Form 5472 is how it does that.
The form doesn't travel alone, either. It gets attached to a pro-forma Form 1120, which is a mostly blank corporate tax return that exists purely as a cover sheet to deliver your 5472 to the IRS. You're not filing a real corporate return and you're not paying corporate tax. The 1120 is just the envelope.
🌍 Why almost every foreign LLC owner has to file
The most common thing I hear from LLC owners is some version of: "But I didn't have any reportable transactions." Almost always, they did.
The IRS defines "reportable transaction" very broadly. It's not just revenue or profit. It includes money moving in either direction between you and your LLC. Some examples that all count:
- Funding your LLC's bank account (a capital contribution)
- Paying yourself from the LLC (a distribution)
- Covering a business expense with personal money, or vice versa
- Lending money to the LLC, or the LLC lending to you
- Paying the registered agent fee or state renewal through the LLC
That last one is the kicker. Even if your LLC did nothing all year except exist, you almost certainly funded it with at least a small amount to cover its own maintenance costs. That single transaction triggers the filing requirement.
💸 The "zero income" myth
This deserves its own section because it trips up so many people. Your LLC does not need to earn a cent for Form 5472 to be required.
An LLC that sat idle for twelve months without signing a single client still has to file, as long as there was any reportable transaction during the year. And as we just covered, there almost always is. The moment you moved money into or out of that entity, even to keep it alive, you created a filing obligation.
The nomads who get burned are the ones who heard "foreign-owned LLCs don't pay US tax," filed that under "nothing to do here," and moved on. The tax part is often true. The "nothing to do" part is not.
⚠️ The penalty, and why the IRS means it
The penalty for failing to file Form 5472, filing it late, or filing it with incomplete or incorrect information is $25,000. Per form. Per year.
Sit with that for a moment. If you formed your LLC three years ago and never filed, you're not looking at one $25,000 penalty. You're looking at three, one for each year, potentially $75,000 in total exposure for an entity that may have earned very little or nothing at all.
The amount isn't accidental. The IRS raised this penalty from $10,000 to $25,000 specifically to get the attention of foreign-owned entities, whose numbers have exploded as online formation made it trivial to spin up a US LLC from anywhere. This is an enforcement priority, not a dusty rule nobody checks, and information-return penalties can be assessed automatically.
And $25,000 isn't the ceiling. The penalty is charged per form, and you need a separate Form 5472 for each foreign related party you transact with, so several related parties in one year means several penalties stacked together.
Worse, it keeps growing if you ignore an IRS notice. Once the IRS mails you a notice of failure, a 90-day clock starts. If you still haven't filed when that runs out, another $25,000 is assessed for each 30-day period, or fraction of one, that the failure continues. There's no statutory cap on that. A single missed form can climb from $25,000 into six figures within months of the notice landing. So if one ever arrives, treat it as urgent. Every 30 days you wait is another $25,000.
📌 The practical details that trip people up
A few specifics that are easy to get wrong, and expensive when you do:
The deadline is April 15. Form 5472, together with the pro-forma 1120, is due on the fifteenth day of the fourth month after your tax year ends. For a calendar-year LLC, that's April 15 of the following year. Tax year 2025 is due April 15, 2026.
You can extend, but you have to do it on time. Filing Form 7004 by the original April 15 deadline gets you an automatic extension to October 15. The catch is that the extension request itself has to be submitted by April 15. Miss the original deadline entirely and there's no retroactive extension to save you.
You cannot e-file. This surprises almost everyone. A foreign-owned disregarded entity filing a pro-forma 1120 with Form 5472 attached can't be submitted electronically. It has to go to the IRS by mail or fax. In an era where nearly everything is digital, this is a genuine trap. People assume they can file online at the last minute, discover they can't, and miss the deadline.
You need an EIN. Your LLC must have an Employer Identification Number to file. If you formed your LLC but never got around to obtaining an EIN, that's the first thing to sort out, because the form can't be processed without it.
🛠️ What to do if you're already behind
If you've had a US LLC for one or more years and you're only now learning about Form 5472, take a breath. This is fixable, but it's time-sensitive.
Start by counting your missed years, working forward from the year you formed the LLC. Each year is a separate filing. Then pull your records: for each year, you need your bank statements and a clear picture of every transaction between you and the LLC (contributions, distributions, expenses, loans). This is the raw material the form is built from.
Now file the delinquent returns with a reasonable cause statement. The IRS does grant penalty relief when you can demonstrate "reasonable cause" for filing late, but that's not as simple as writing "I didn't know."
So what actually makes an abatement request land? Timing is the big one. Filing before the IRS contacts you is far stronger than waiting for a notice, because it shows you came forward voluntarily rather than only acting once you were caught.
The standard the IRS applies is whether you exercised "ordinary business care and prudence." That means your statement has to explain your real circumstances honestly and back them up: dates, correspondence, evidence of when and how you discovered the requirement. Asserting ignorance on its own won't carry it. Having relied on a professional who never flagged the obligation helps, as does a clean prior compliance history.
One thing worth knowing: First-Time Abatement, the IRS's automatic relief for many late-filing penalties, does not apply to Form 5472. Reasonable cause is your primary route, so build it carefully.
And if you've already received a penalty notice, or you're filing several years late at once, this is not the moment for guesswork. Get a qualified tax professional to structure the reasonable cause argument and handle the IRS correspondence. The cost of doing it right is trivial next to the penalties at stake.
For the filings themselves, Edetax prepares Form 5472 and the pro-forma 1120 for foreign-owned LLCs, including prior years you still need to catch up on.
✅ Your annual compliance checklist
Once you're caught up, staying compliant is genuinely simple. It's a once-a-year task if you keep decent records. Here's the routine:
- Keep a running note of any money moving between you and the LLC throughout the year. This turns filing season from a scramble into a formality.
- Put April 15 in your calendar as a recurring annual event, right now, and build in time for postage since you can't e-file.
- Don't forget your state obligations. Form 5472 is federal, but your LLC may also owe state annual reports, franchise taxes, or registered agent renewals, each with its own deadline. Wyoming, Delaware, and New Mexico all differ here.
- Budget for it. Professional filing typically runs between $100 and $500 depending on complexity. Compared to a $25,000 penalty, it's cheap insurance.
🎯 The bottom line
A US LLC remains one of the most useful structures a location-independent entrepreneur can have. The banking access, the payment processing, the credibility with international clients: all of that is real, and none of it goes away because of Form 5472.
What changes, once you know about this filing, is that you stop quietly accumulating penalty exposure without realizing it. You file on time, you keep your records clean, and your LLC stays the asset it was meant to be rather than a five-figure liability waiting to surface. Which puts you ahead of most foreign LLC owners out there. Mark the date before you close this tab.
Eneko Seriola is the founder of Edetax, a software platform that prepares Form 5472 filings for foreign-owned US LLCs, including prior-year catch-up filings. Edetax provides software rather than tax or legal advice, and its filing logic is reviewed by CPAs on an ongoing basis.
Sarah Kuhlemann
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