If you own a US LLC from outside the United States — or you are about to — there is a checklist most founders discover too late. Not because the rules are exotic, but because "I owe no US income tax" sounds like "I have nothing to file."
Those are not the same sentence.
At OtoCo, we help global founders form and operate US LLCs from a wallet-native dashboard — including EINs, banking paths, and tax filing support. We pioneered instant onchain LLCs so company infrastructure would feel closer to software than to a filing cabinet. This guide is the practical tax-ops checklist for foreign-owned US LLCs: what to have, what to file, when it is due, and what breaks if you skip a step.
Short answer: A foreign-owned single-member LLC may owe little or no US income tax and still need an EIN, Form 5472, a pro forma Form 1120, state annual maintenance, and clean books. Filing and tax owed are different jobs.
Quick answer: the foreign-owned LLC tax stack
That checklist mirrors what founders actually purchase after formation: EINs first, then mail address, tax filing, and banking. Tax is a smaller share of the mix — and still the step that catches foreign-owned LLCs off-guard.
- EIN — your company's US tax ID. Needed for banking and most filings.
- Form 5472 — information return for reportable transactions with related foreign parties. Missing it can trigger a $25,000 penalty.
- Pro forma Form 1120 — the cover return that typically accompanies Form 5472 for foreign-owned disregarded entities.
- State annual report / franchise tax — keep the LLC in good standing where it was formed.
- Bookkeeping — enough records to prove ownership, transfers, and related-party transactions.
We explain Form 5472 in depth in our pillar guide. This post is the checklist version — the one you can print, tick, and actually finish.
Foreign-owned LLC tax filing checklist
| Requirement | Who it applies to | When due | If missed |
|---|---|---|---|
| EIN | Almost every LLC that banks or files | Before banking / first filing | Banking blocked; filings delayed |
| Form 5472 | Many foreign-owned single-member LLCs with reportable transactions | With the LLC's return due date (often mid-April for calendar year) | Penalties starting at $25,000 |
| Pro forma Form 1120 | Foreign-owned disregarded entities filing 5472 | Same cycle as 5472 | Incomplete filing package |
| State annual report / franchise tax | Wyoming, Delaware, and other formation states | State-specific annual deadline | Bad standing; banking/counterparty friction |
| Books & related-party records | Any foreign-owned LLC with capital, loans, or services across borders | Ongoing | Unable to complete 5472 accurately |
1. Get an EIN before everything else
An EIN — Employer Identification Number — is the company's US tax ID. Banks, payment processors, and the IRS expect it. Non-US founders can obtain one without an SSN; OtoCo handles that foreign-owner route.
Step-by-step: How to get an EIN for a US LLC without an SSN.
2. File Form 5472 when it applies
Form 5472 is an information return. Think of it as a disclosure form for certain transactions between your US LLC and related foreign persons — capital contributions, distributions, loans, reimbursements, and similar movements.
It is not the same as an income tax bill. You can owe $0 US income tax and still need to file. That distinction is where founders get hurt.
No US tax due ≠ no US filing due.
Full explainer: What Is Form 5472 and Why Foreign-Owned LLCs Must File It.
3. Attach the pro forma Form 1120
For many foreign-owned disregarded LLCs, Form 5472 travels with a pro forma Form 1120 — a skeleton corporate return used as the filing vehicle. Founders who "only heard about 5472" sometimes file an incomplete package. Treat 5472 + pro forma 1120 as one job.
4. Understand pass-through (plain English)
By default, a single-member LLC is often a disregarded entity for US federal tax — income and expenses "pass through" to the owner rather than being taxed first at the company level like a C-Corp. Pass-through describes how tax is computed. It does not delete information-reporting duties.
We separate “tax owed” from “filing required” in the Form 5472 pillar — pass-through classification does not erase information reporting.
5. Keep the state filing alive
Wyoming wants an annual report. Delaware wants franchise tax. Letting either lapse puts the company out of good standing — which is a problem the moment a bank, exchange, or investor runs a status check.
6. Keep books boring enough to file from
You do not need a Fortune 500 ledger. You do need a clear story of who owns the LLC, what money or assets moved between you and the company, and which wallets or accounts are company vs personal. Crypto founders: treat treasury wallets as company property in the records, not as a Telegram afterthought.
Deadlines and the calendar-year default
Many foreign-owned single-member LLCs on a calendar year aim for the mid-April filing window for the 5472 package (extensions exist; do not assume them). State deadlines differ. Put both on a calendar the week you form the company — not the week before the penalty letter.
How OtoCo helps
We built tax filing support into OtoCo — including Genco-assisted workflows — because founders should not discover Form 5472 from a penalty notice. Form the company at otoco.io, get your EIN, and use the compliance layer so the boring forms stay boring.
A large share of OtoCo activity is international on a billing-country proxy (~61% non-US) — so EIN + Form 5472 + state upkeep is not edge-case paperwork.
Related: What Is Form 5472 and Why Foreign-Owned LLCs Must File It and Genco tax filing.
FAQ
I have no US revenue. Do I still file?
Possibly yes. Information returns can apply even when no US income tax is owed. Check Form 5472 applicability for your ownership and transactions.
Does OtoCo replace a CPA?
No. OtoCo is not a CPA or law firm. We help with formation, EIN, and filing workflows — get advisor review for your facts.
Ready to get the stack in order?
Form your US LLC, get an EIN, and stop treating compliance as a year-end surprise. Start at otoco.io — then get back to building.
Disclaimer: General information only — not legal, tax, or financial advice. OtoCo is not a law firm or CPA firm. Consult your own advisors.
