A partnership with two foreign partners has a small loss for the year, so there is no effectively connected taxable income allocable to the foreign partners and no §1446 withholding due. Is Form 8804-C required in this situation, or is it only relevant where a foreign partner certifies deductions and losses to reduce withholding?
Form 8804-C is not required when the partnership has no effectively connected taxable income (ECTI) allocable to foreign partners and no §1446 withholding is due.
Form 8804-C serves a specific, voluntary purpose: it allows a foreign partner to certify partner-level deductions and losses (or make a de minimis certification) to reduce or eliminate the partnership's §1446 withholding obligation on ECTI allocable to that partner. The form is used only when a foreign partner chooses to provide such certification to the partnership.
When there is no ECTI allocable to foreign partners — as in your loss scenario — there is no withholding obligation to reduce or eliminate, so Form 8804-C has no function. The partnership is not obligated to consider a Form 8804-C even if one is submitted, and the form's purpose presupposes the existence of ECTI that would otherwise trigger withholding.
In short, Form 8804-C is relevant only where there is (or would be) §1446 withholding due on ECTI, and a foreign partner seeks to reduce that withholding through certified deductions, losses, or a de minimis certification. It is not a general filing requirement for partnerships with foreign partners.