Disregarded entity

By default, a single-member LLC is disregarded as separate from its owner for federal income tax, so the owner reports its income as their own. A foreign owner with no US trade or business generally has nothing to report, because the income is foreign-source.

Being disregarded for income tax doesn't make the company invisible. For tax years beginning after 2016, a foreign-owned disregarded entity is treated as a corporation for Form 5472, and files it every year with a pro forma Form 1120.