How economic nexus, marketplace facilitator laws and resale certificates actually apply to Amazon and Walmart sellers.
When non-resident individuals must file Form 1040- NR, which deadline applies and what an ITIN has to do with it.
Whether you owe US federal tax depends on effectively connected income, not on where your LLC is registered.
Foreign-owned single-member LLCs must file Form 5472 with a pro forma Form 1120 even with zero income. Penalties start at $25,000.