Form 5472 for Foreign-Owned LLCs: What Non-US Founders Must Know in 2026

The Short Answer

A foreign-owned US single-member LLC must file Form 5472 every year — regardless of whether the LLC earned income, had expenses, or conducted any business activity.

The penalty for missing this filing is $25,000 per form per year, with additional $25,000 penalties every 30 days if the failure continues after the IRS notifies you.

For nonresident alien (NRA) owners of single-member LLCs, Form 5472 is filed together with a pro forma Form 1120 — and it cannot be e-filed. You must fax or mail it to the IRS.

This guide explains exactly who must file, what counts as a “reportable transaction,” how to file, deadlines, penalties, and how the Route Planner fits into your compliance planning.

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Who Must File Form 5472

Form 5472 is an information return, not a tax return. It is required from:

1. 25% Foreign-Owned US Corporations Any US corporation where foreign persons own 25% or more of the company at any point during the tax year.

2. Foreign-Owned US Disregarded Entities This includes single-member LLCs wholly owned by a foreign person. The LLC is treated as a “disregarded entity” for income tax purposes — meaning the IRS looks through the LLC to the owner — but Form 5472 filing requirements still apply.

3. Foreign Corporations Engaged in a US Trade or Business Any foreign corporation operating in the US may also need to file.

Single-Member LLC + Nonresident Alien (NRA) Special Case

If you are a non-US person (nonresident alien) who owns 100% of a US single-member LLC, you must file:

• Form 5472 — reporting ownership and transactions
• Pro forma Form 1120 — a simplified corporate return the LLC is treated as filing

This is true even if:

• The LLC had no US-source income
• The LLC had no worldwide income
• The LLC had no business activity during the year
• You already file Form 1040 or 1040-NR as an individual

The requirement exists because the LLC is a separate legal entity, even if it is “disregarded” for income tax purposes.

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What Is a Reportable Transaction?

Form 5472 requires you to disclose transactions with related parties — both foreign and domestic.

A reportable transaction typically includes:

• Sales and purchases of goods
• Rents and royalties paid or received
• Amounts borrowed or lent (including trade payables/receivables)
• Commissions, dividends, interest, and other income paid or received
• Any other transactions listed in Parts IV, V, or VI of the form

The critical point: you must file Form 5472 if the LLC is 25%+ foreign-owned and had any transactions with related parties — even routine inter-company transactions.

If there were no reportable transactions at all, some exceptions may apply. However, for single-member LLCs owned by NRAs, the filing requirement is generally not waived even with zero transactions.

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The $25,000 Penalty — And How to Avoid It

The IRS takes Form 5472 non-compliance seriously.

Penalty Structure

Failure Type	Penalty Amount
Initial failure to file Form 5472	$25,000 per reporting corporation
Continued failure (per 30 days after IRS notification)	$25,000 additional per related party
Criminal penalties	Up to $100,000 or imprisonment under sections 7203, 7206, 7207

What Triggers the Penalty

The penalty is assessed automatically when Form 5472 is:

• Filed after the deadline
• Filed with incomplete or incorrect information
• Not filed at all

There is no grace period. If the due date passes without a valid filing, the $25,000 penalty is triggered.

How to Avoid the Penalty

1. File on time — even with zero activity If your LLC is 25%+ foreign-owned, file Form 5472 even if there were no transactions. An incomplete but timely return is better than no return.

2. Request an extension Form 7004 (Application for Automatic Extension of Time to File Certain Business Income Tax, Information, and Other Returns) can extend the deadline by 6 months — from April 15 to October 15.

3. First-Time Penalty Abatement (FTA) If you have a clean compliance history, the IRS may abate the first penalty. This is not guaranteed but is worth requesting.

4. Reasonable Cause Defense If you can demonstrate reasonable cause for the late filing, penalties may be reduced or waived. Acceptable reasons include:

• Natural disaster or postal service failure
• Death or serious illness
• Reliance on professional advice (with documentation)

The reasonable cause standard is strict. Ignorance of the filing requirement is generally not accepted as reasonable cause.

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How Non-US Founders Actually File Form 5472

For single-member LLCs owned by foreign persons (especially NRAs), the filing process has specific steps.

Step 1: Obtain an EIN (Employer Identification Number)

Before filing Form 5472, your LLC needs an EIN. Apply using Form SS-4 (Application for Employer Identification Number).

If your LLC was formed in a US state, you can apply:

• Online at IRS.gov (fastest — but requires a US responsible party)
• By fax to the IRS
• By mail (takes 4-5 weeks)

Important: If you are a nonresident alien individual, you cannot use an ITIN as the responsible party on the SS-4 in some cases. Consult a tax professional if you have questions.

Step 2: Determine Your Tax Year

The LLC’s tax year generally matches the owner’s tax year:

• Most individuals use the calendar year (January 1 – December 31)
• If you file Form 1040-NR with a fiscal year, your LLC follows the same year

Step 3: Prepare Form 5472

Form 5472 has four parts:

• Part I — Name, address, EIN, and general information about the reporting corporation
• Part II — Foreign person(s) owning 25% or more of the corporation
• Part III — Related party transactions (sales, rents, royalties, interest, commissions, etc.)
• Part IV through Part VI — Detailed transaction reporting

For single-member LLCs, only Parts I and II are typically applicable unless the LLC had specific related-party transactions.

Step 4: Prepare Pro Forma Form 1120

For foreign-owned single-member LLCs, file a pro forma Form 1120 — a simplified version of the corporate return.

The pro forma 1120 only requires:

• Name and address
• Item B (principal business activity)
• Item E (income and deductions) — can be minimal or zero

Step 5: Submit by Fax or Mail

Cannot e-file. Foreign-owned single-member LLCs must file by:

• Fax: 855-887-7737 (300 DPI minimum)
• Mail:

  Internal Revenue Service
  1973 Rulon White Blvd
  M/S 6112 Attn: PIN Unit
  Ogden, UT 84201

Write “Foreign-owned U.S. DE — Form 5472” across the top of all forms.

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Deadlines and Extensions

Event	Deadline
Form 5472 + Pro Forma 1120 original due date	April 15 (same as individual tax deadline)
Extension request (Form 7004)	April 15 (must be filed by this date)
Extended deadline	October 15 (6 months)

Note: Form 7004 for an LLC owned by an NRA must be filed by mail, not e-file.

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EIN and ITIN Requirements

EIN

An EIN is required for:

• Opening a US bank account
• Filing Form 5472
• Hiring employees (if applicable)

Without an EIN, you cannot file Form 5472. If your LLC is new and you do not yet have an EIN, the LLC cannot comply with Form 5472 requirements.

ITIN (Individual Taxpayer Identification Number)

Nonresident aliens who do not have and are not eligible for a Social Security Number (SSN) need an ITIN to file US tax returns.

If you file Form 1040-NR as an NRA with US LLC income, you likely need an ITIN. ITINs expire on December 31 each year — if yours has expired, you must renew it before filing.

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What Happens If You Don’t File

The consequences are severe and automatic:

1. $25,000 penalty is assessed against the LLC — not the owner personally, but the LLC is the reporting corporation
2. Additional $25,000 penalties every 30 days if the failure continues after IRS notification (up to $75,000-$100,000+ per year)
3. The LLC being “inactive” is not a defense — the IRS has assessed penalties against single-member LLCs with no income and no activity
4. Consolidated groups — each member is separately liable for its own $25,000 penalty

The IRS computer systems automatically assess these penalties when Form 5472 is not received by the deadline. You must proactively request relief.

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How the Route Planner Fits Into Your Compliance Planning

Understanding Form 5472 is one part of a larger compliance picture for non-US founders.

The Route Planner at /tools/route-planner asks about your country, business model, payment goals, address setup, and compliance needs. If your situation triggers Form 5472 obligations, the route output will flag this.

The 3-Year LLC Cost Calculator at /tools/cost-calculator estimates total LLC costs including registered agent renewals, state filing fees, and tax preparation — but Form 5472 preparation costs (especially if you use a tax professional) should also be factored into your year-1 and ongoing costs.

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FAQ: Common Questions About Form 5472

Does a foreign-owned single-member LLC need to file Form 5472 if it had no income?

Yes. The filing requirement applies to foreign-owned single-member LLCs regardless of income or activity. Even a completely inactive LLC with zero income must file Form 5472 with a pro forma 1120.

Can I e-file Form 5472?

No. Foreign-owned disregarded entities cannot e-file. You must fax or mail the forms to the Ogden, UT address.

What if I am a nonresident alien but my LLC is taxed as a partnership?

Multi-member LLCs are generally treated as partnerships and have different filing rules. This guide covers single-member LLCs only. For multi-member LLCs, consult a tax professional.

How long does the IRS give me to respond to a Form 5472 penalty notice?

If you receive a penalty notice, you typically have 30 days to respond and request abatement or demonstrate reasonable cause. Do not ignore penalty notices.

Can I avoid Form 5472 by not having a US LLC?

If you are conducting US business activities or earning US-source income, the IRS may still assert filing requirements — potentially as a foreign corporation engaged in a US trade or business. Forming a US LLC and complying with Form 5472 is generally cleaner than the alternative.

What is the difference between Form 5472 and Form 5471?

• Form 5472 — Filed by US corporations (or disregarded entities) that are 25%+ foreign-owned
• Form 5471 — Filed by US persons who own stock in foreign corporations

They are complementary but different. Do not confuse the two.

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Quick Reference: Form 5472 Filing Checklist

Before you file:

• LLC has an EIN (obtained via Form SS-4)
• Foreign owner has an ITIN (if NRA, non-SSN holder)
• Determine LLC tax year (usually calendar year)
• Gather records of any related-party transactions
• Complete Form 5472 Parts I and II minimum
• Complete pro forma Form 1120 with items B and E
• Write “Foreign-owned U.S. DE — Form 5472” across the top
• Fax to 855-887-7737 or mail to Ogden, UT address
• File by April 15, or request extension via Form 7004 by April 15
• Keep a confirmation copy of everything filed

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Next Steps

If you are a non-US founder deciding whether to form a US LLC, or if you already own one:

1. Use the Route Planner at /tools/route-planner to map your compliance obligations
2. Review your 3-year costs at /tools/cost-calculator — include tax preparation costs for Form 5472
3. Consult a US tax professional if you have any questions about your specific situation, especially if you are unsure whether transactions are “reportable”

Form 5472 compliance is manageable when you know the rules. The penalty for ignorance is $25,000 per year — which makes understanding this requirement one of the most important steps in your US business journey.

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This guide is for informational purposes only and does not constitute legal or tax advice. Consult a qualified US tax professional for guidance specific to your situation.