Who Is a Non-Resident for U.S. Tax Purposes?
You are generally treated as a non-resident alien (NRA) if you are not a U.S. citizen or green card holder, and do not meet the Substantial Presence Test. Many foreign founders operating Delaware LLCs, Wyoming LLCs, and Delaware C-Corps fall into this category.
Why Form 5472 Is Critical
Form 5472 is an IRS information return used to report transactions between a U.S. entity and its foreign owner or related parties. You must file Form 5472 if you own 25% or more of a U.S. company and the company has any "reportable transaction" with a foreign owner.
Common Reportable Transactions:
- Capital contributions
- Loans to or from the foreign owner
- Expense reimbursements
- Management fees
- Payments for services
Even a simple bank funding from a foreign founder can trigger a Form 5472 filing requirement.
Understanding Form 1120
Form 1120 is the U.S. Corporate Income Tax Return. For a foreign-owned single-member LLC (a "disregarded entity"), a pro-forma Form 1120 must be filed with Form 5472 attached. This is true even if the LLC has no income.
| Entity Type | Filing Requirement |
|---|---|
| Foreign-Owned Single-Member LLC | Pro-forma Form 1120 + Form 5472 |
| Multi-Member LLC (Partnership) | Form 1065 + Form 5472 (if foreign ownership >=25%) |
| C-Corporation with Foreign Shareholders | Full Form 1120 + Form 5472 (for related-party transactions) |
Filing Deadlines and Penalties
Both Form 1120 and Form 5472 are due by April 15, 2025. An extension can be filed to move the deadline to October 15, 2025.
Warning: Severe Penalties
The penalty for failing to file Form 5472 is $25,000 per form, per year. This is one of the highest-risk filings for international founders and is strictly enforced by the IRS.
Common Mistakes to Avoid
- Assuming “no revenue” means “no filing”.
- Missing capital contribution reporting.
- Filing Form 5472 without the pro-forma Form 1120.
- Using personal bank accounts for business transactions.
Final Thoughts
For international founders, U.S. compliance is not optional—it is structural. Proper planning, diligent bookkeeping, and timely filing are essential to operating safely and successfully in the U.S. market.