Hi, I’m CPA Maximiliano Mira Salas. Today we’re covering a set of lesser-known but critical IRS forms for foreign-owned LLCs doing business in the United States: Forms 8804, 8805, and 8804-C.

📌 When do these forms apply?
If your LLC generates Effectively Connected Income (ECI)—such as income from services performed in the U.S., rental activities, in-person consulting, or commercial trade—and any of the partners is a foreign person, the IRS requires a mandatory 37% withholding on the foreign partner’s allocable share of that income.
In these cases, you must file:

Form 8804 (annual partnership withholding return),
Form 8805 (individual partner statement), and
Form 8804-C (optional form for withholding reduction or exemption).

🔍 Technical Breakdown of Filing Requirements

Form 8804:
This is the annual return filed by a partnership (including multi-member LLCs taxed as partnerships) reporting total ECI and withholding on foreign partners.
Form 8805:
Issued per foreign partner, this is similar to a W-2 for partners. It reports each partner’s share of ECI and the amount withheld. Foreign partners can use it to claim the withholding on their individual U.S. tax return (Form 1040-NR).
Form 8804-C:
Allows the partnership to request a reduction or exemption from the 37% withholding if the foreign partner expects losses or low net income. This form typically requires technical justification and, in many cases, prior IRS approval.

⚠️ Key Considerations

Automatic applicability:
This is not optional. If there is ECI and foreign ownership, the withholding and filing obligations apply immediately.
Default 37% withholding:
Unless reduced or exempted (via Form 8804-C or other IRS procedures), the partnership must withhold 37% on the foreign partner’s share of net income.
Severe penalties for noncompliance:
Failure to file or remit withholding may result in substantial penalties, interest, and even questions regarding the validity of your tax structure.
Not replaced by Form 1042-S:
These obligations are separate from other withholding requirements, such as those on fixed or determinable annual income (e.g., interest or royalties). The 8804/8805 series applies specifically to ECI in pass-through entities.

🧳 What structures are affected?

Mainly:

Multi-member LLCs taxed as partnerships
Joint ventures, trusts, or foreign entities classified as partnerships for U.S. tax purposes
Single-member LLCs that have elected partnership treatment (in certain cases)

📄 Legal Considerations

This communication is for informational purposes only and does not constitute legal or tax advice. Each case must be individually assessed, considering the taxpayer’s country of residence, global assets, and any applicable tax treaties. Proper filing and compliance with these forms should be handled by a CPA experienced in U.S. international tax regulations.

If your LLC operates in the U.S. and has foreign partners, FINANCERS can help you review your structure, assess the existence of ECI, and ensure full compliance with IRS requirements—with technical precision and complete documentation.

CPA Maximiliano Mira Salas
International Tax Advisor | FINANCERS