Form 5472 & Pro-forma 1120: Filing for Foreign-Owned US LLCs (2026)

If you are a non-resident who owns a single-member US LLC, there is one federal filing you cannot ignore: Form 5472 attached to a pro-forma Form 1120. Even if your LLC owes zero US tax, this filing is mandatory.

Who must file?

Any US “disregarded entity” (typically a single-member LLC) that is at least 25% foreign-owned and had a “reportable transaction” during the year. Forming, funding, or paying expenses from the LLC usually counts as reportable.

What it reports

Form 5472 discloses transactions between you (the foreign owner) and your LLC — capital contributions, distributions, loans, and similar. The pro-forma 1120 is a cover form with basic company details.

Deadline & penalties

It is filed annually, generally by the corporate due date. The penalty for failing to file is severe (currently $25,000 minimum), so this is not optional.

How to file

1. Get your EIN.
2. Track owner-company transactions during the year.
3. Prepare Form 5472 + pro-forma 1120.
4. Submit by mail or fax to the IRS by the deadline.

FAQ

My LLC had no profit — do I still file?

Yes. The filing is about transactions and ownership, not profit.

Can you handle this for me?

Yes — we prepare and file 5472/1120 for foreign-owned LLCs.

Start with 3Companion

3Companion forms US & UK companies for non-residents in 150+ countries — LLC, C-Corp, EIN/ITIN, banking and compliance, 100% remote. Start your application or message us on WhatsApp for a free consultation.

Disclaimer: general information, not tax advice.