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US Tax for Non-Resident LLC Owners

Complete framework for US tax obligations of non-resident Wyoming LLC owners. Covers federal income tax, state, sales tax, withholding, and mandatory Form 5472. Most non-residents owe $0 federal income tax but must still file Form 5472 annually.

Answer

Non-resident Wyoming LLC owners owe US federal income tax only on Effectively Connected Income (ECI) from a US trade or business under IRC Section 864. Wyoming has no state income tax. Form 5472 + pro forma 1120 is mandatory annually regardless of US tax owed (IRC Section 6038A, $25,000 penalty for non-filing). US-source FDAP income (dividends, royalties, interest) is subject to 30% default withholding, reducible by tax treaty via Form W-8BEN-E. Most non-resident operators of digital businesses owe $0 US federal income tax while still filing Form 5472.

By Zawwad, Founder & CEO, WyomingLLC by Topslice LLC.

Last updated May 20, 2026

The four federal scenarios

  • No ECI, no US-source income: $0 US federal tax, Form 5472 + 1120 mandatory
  • No ECI, US-source FDAP: 30% withholding (reduced by treaty via W-8BEN-E), Form 5472 + 1120 mandatory
  • ECI exists: graduated US tax rates, file Form 5472 + 1120 + 1040-NR
  • FDAP fully withheld by payer: withholding satisfies tax, file Form 5472 + 1120

State and local

  • Wyoming: $0 state income tax
  • Other states: may apply if you have nexus (FBA inventory, US employees, fixed office)
  • Sales tax: required in states with economic nexus (over $100K sales or 200 transactions)

Mandatory annual filings

  • Form 5472 + pro forma 1120 (LLC level)
  • Wyoming annual report ($60 minimum)
  • Form W-8BEN-E renewal every 3 years with US payers
  • Home country tax filings per local rules

Frequently asked questions

Do non-residents owe US income tax?
Only on ECI. Most non-resident digital businesses owe $0 federal income tax.
Is the LLC pass-through?
Yes for single-member foreign-owned LLCs (disregarded entity default). Income flows to you personally.
What forms are mandatory?
Form 5472 + pro forma 1120 annually for foreign-owned single-member LLCs. $25,000 penalty for non-filing.
Wyoming state tax?
$0. Wyoming has no state income tax.

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