Form 5472 is the most expensive compliance gap in non-resident LLC ownership. Not because the form is hard to prepare, but because the penalty for missing it is $25,000 per form, per year. Most non-resident LLC owners do not know this form exists until they receive a notice or learn about it from another founder who already paid the penalty.
The IRS assesses a $25,000 penalty for each Form 5472 that is not filed, filed late, or filed with substantially incomplete information. Every foreign-owned single-member LLC is required to file Form 5472 annually with a pro forma Form 1120, regardless of whether the LLC had revenue, profit, or any business activity during the year. The filing is due on April 15 following the calendar year (with a possible 6-month extension to October 15). A founder who formed an LLC in 2024 and has never filed faces a potential $50,000+ in accumulated penalties by 2026.
I have watched this penalty hit founders who had no idea the obligation existed. They formed their LLC through a reputable service, obtained an EIN, opened a bank account, and started operating. Nobody told them about Form 5472. Twelve to eighteen months later, an IRS notice arrived.
What is Form 5472?
Form 5472 is an IRS information return titled "Information Return of a 25% Foreign-Owned U.S. Corporation or a Foreign Corporation Engaged in a U.S. Trade or Business." Despite the title referencing corporations, it applies to foreign-owned single-member LLCs because the IRS treats these entities as corporations for Form 5472 reporting purposes under Treasury Regulation 1.6038A-1(c)(1).
The form reports "reportable transactions" between the LLC and its foreign owner. Reportable transactions include:
- Capital contributions -- Money you put into the LLC
- Distributions -- Money you take out of the LLC
- Loans -- Money borrowed or lent between you and the LLC
- Rent or lease payments -- If the LLC uses your personal assets or vice versa
- Service payments -- If the LLC pays you (or you pay the LLC) for services
- Any other monetary transaction between the LLC and its 25%+ foreign owner
If you formed a US LLC, put money into it, or took money out of it, you had a reportable transaction. That means the filing requirement was triggered from the moment you funded the LLC's bank account.
Who has to file Form 5472?
Every US LLC that is:
- A single-member LLC (or treated as a disregarded entity)
- Owned by a foreign person (non-US citizen, non-US resident alien, or foreign entity)
- Has had at least one "reportable transaction" during the tax year
The definition of "foreign person" includes anyone who is not a US citizen and does not have a green card or meet the substantial presence test. If you formed a US LLC from outside the US and you are not a US person, you have a Form 5472 filing obligation.
The form is filed with a pro forma Form 1120 (US Corporation Income Tax Return). The Form 1120 itself shows zeros for income and tax -- it exists only as the vehicle to attach Form 5472. The two forms are filed together as a single submission.
When is Form 5472 due?
The filing deadline is April 15 following the end of the calendar year. A Form 5472 for the 2025 tax year is due April 15, 2026.
An automatic 6-month extension is available by filing Form 7004 before the April 15 deadline. This extends the due date to October 15.
The filing starts from the year the LLC was formed, not the year it started earning revenue. An LLC formed in September 2025 with no revenue and one $500 capital contribution has a Form 5472 filing obligation for the 2025 tax year, due April 15, 2026.
The $25,000 penalty: how it works
The penalty is prescribed by IRC Section 6038A(d). The IRS assesses $25,000 for:
- Failure to file -- The form was not submitted at all
- Late filing -- The form was submitted after the deadline (including extension)
- Substantially incomplete filing -- The form was submitted but missing material information
The penalty is per form, per year. If you have one LLC and missed two years, the potential penalty is $50,000. If you have two LLCs and missed one year for each, the potential penalty is also $50,000.
After the initial $25,000 assessment, the IRS sends a notice demanding compliance. If the form is not filed within 90 days of the notice, an additional $25,000 penalty accrues for each 30-day period of continued non-compliance. The penalty has no statutory maximum.
Penalty timeline example
| Event | Penalty exposure |
|---|---|
| LLC formed in 2024, no Form 5472 filed for 2024 | $25,000 |
| 2025 passes, no Form 5472 filed for 2025 either | $50,000 cumulative |
| IRS notice received in 2026, 90-day clock starts | $50,000 + accruing |
| 120 days after notice, still not filed | $50,000 + $25,000 additional = $75,000 |
These are statutory penalties. The IRS has the authority to assess them without proving intent or harm.
What triggers IRS awareness?
The IRS may become aware of a missing Form 5472 through several channels:
EIN records. When the LLC applied for an EIN using Form SS-4, the IRS recorded the responsible party as a foreign person. The IRS cross-references EIN records against filed returns. An EIN with a foreign responsible party and no corresponding Form 1120 + Form 5472 is a data match.
Bank account reporting. US banks report account holder information to the IRS. A US bank account held by an LLC with a foreign owner generates information that can be matched against filed returns.
FATCA and information exchange. Under the Common Reporting Standard (CRS) and FATCA, financial institutions in participating countries report account information to tax authorities, which share it with the IRS.
Formation service records. Formation services like Stripe Atlas, Firstbase, and Doola file formation documents with state secretaries of state. State records are accessible to the IRS.
The detection is not instant. But it is increasingly automated. The gap between formation and enforcement has narrowed over the past several years.
Can the penalty be reduced or removed?
The IRS has discretion to abate (reduce or remove) penalties in specific circumstances:
Reasonable cause. If the founder can demonstrate that the failure was due to reasonable cause and not willful neglect, the IRS may abate the penalty. "I didn't know about the form" is a weak argument but not automatically disqualifying -- it depends on the totality of the circumstances.
First-time penalty abatement. The IRS offers administrative first-time penalty abatement for certain penalties, but Form 5472 penalties fall under IRC 6038A, and the first-time abatement program does not automatically apply to information return penalties.
Streamlined filing. For US persons living abroad who have been non-willful in their failure to file, the Streamlined Filing Compliance Procedures may provide a path to compliance with reduced penalties.
The key point: penalty abatement is discretionary, not automatic. Filing late is less expensive than not filing at all.
How much does it cost to file Form 5472?
| Filing method | Cost | Notes |
|---|---|---|
| CPA (standalone) | $500-2,000/yr | Varies by complexity of reportable transactions |
| Firstbase add-on | $899/yr | Includes Form 5472 + pro forma 1120 |
| Doola Total Compliance | $1,999/yr | Includes Form 5472 + bookkeeping + tax filing |
| Self-preparation | $0 | Possible but carries accuracy risk; the form is not intuitive |
The cost of preparing Form 5472 is a fraction of the penalty for not filing it.
Key Takeaways
- The IRS penalty for a missing or late Form 5472 is $25,000 per form, per year. A founder who misses two years faces $50,000+ in accumulated penalties before any other consequence.
- Every foreign-owned single-member LLC must file Form 5472 annually with a pro forma Form 1120, regardless of whether the LLC had revenue. The obligation starts from the year of formation.
- Filing costs $500-2,000/yr through a CPA, $899/yr through Firstbase, or $1,999/yr through Doola's Total Compliance tier. None of the major formation services include it in their base formation price.
- Penalty abatement is possible through reasonable cause or streamlined filing, but it is discretionary. Filing late is always less expensive than not filing at all.
Originally published at Global Solo -- structural risk visibility for cross-border founders.
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