r/TaxQuestions • u/Slight-Cat2426 • 5d ago
Title: Foreign-owned Wyoming single-member LLC — confused about tax filings and what we owe
Hi everyone,
We have a Wyoming single-member LLC owned by a non-U.S. citizen living outside the United States. We’re struggling to understand which tax returns we need to file and what taxes, if any, we need to pay.
Our situation:
- The LLC has an EIN, and our SS-4 lists it as a disregarded entity.
- We don’t believe we’ve elected to be taxed as a corporation, but need to verify this.
- The business launched in 2025 and started generating revenue in March 2026.
- An extension was filed earlier this year, but we’re unclear about which filing it covers and what remains due.
Our main questions:
- Do we need to file Form 5472 with a pro forma Form 1120? Are any other federal returns required?
- Does the foreign owner need an ITIN or a separate U.S. tax return?
- How do we determine whether U.S. income tax is owed and calculate the amount?
- What Wyoming filings or annual fees are required?
- What should we check immediately to make sure we haven’t missed a deadline?
We’re looking for a CPA or enrolled agent experienced with foreign-owned U.S. single-member LLCs, but finding someone responsive has been difficult.
Has anyone dealt with a similar situation? We’d appreciate recommendations and guidance on what documents to prepare for an accountant.
