Maybe but usually not.
While generally very low risk of being triggered in the typical setup of non-resident aliens owning US LLCs, read up on ECI:
Generally, when a foreign person engages in a trade or business in the United States, all income from sources within the United States other than certain investment income, is considered to be Effectively Connected Income (ECI).www.irs.gov
Assuming it doesn't opt to be taxed like a corporation, the LLC itself isn't taxed. Its members are taxed on personal income. Managers are not taxed unless they are also members or are paid a US salary.
If the LLC holds one foreign member only, there is no tax to pay. If there are more than one partner, they are both taxable regardless of the source of income.As per the title, do we have to pay any FEDERAL tax on our 100% foreign income if we are a non-US resident directors
of a Delaware company?
I know we won't have to pay any tax in Delaware in this scenario, but what about Federal tax?