If you own a US LLC as a foreign person, IRS Form 5472 is one of the most important tax documents you need to file each year. Failing to file it carries a $25,000 penalty, and the IRS has been increasingly aggressive about enforcement. This guide walks you through everything you need to know to file correctly.

Who Needs to File Form 5472?

Form 5472 is required for any US corporation (including an LLC treated as a corporation) or a disregarded entity that is:

  • At least 25% foreign-owned, OR
  • A domestic disregarded entity that has a foreign owner

In practice, this means that if you are a non-US person and you own a single-member US LLC, you are required to file Form 5472 every year, even if:

  • Your LLC had zero revenue
  • Your LLC had no business activity
  • You are not otherwise required to pay US taxes

This is a reporting requirement, not a tax liability. The IRS wants to know about transactions between you (the foreign owner) and your US entity.

What Information You Need Before Filing

Before you start filling out Form 5472, gather the following information:

About Your LLC (the Reporting Corporation)

  • LLC legal name as registered with your state
  • Employer Identification Number (EIN)
  • Date and state of incorporation
  • Principal business activity and NAICS code
  • Address of the LLC

About You (the 25% Foreign Shareholder)

  • Full legal name
  • Address in your country of residence
  • Country of citizenship and residence
  • US taxpayer identification number (if applicable) or foreign tax ID

Transaction Details (Part V)

  • Capital contributions made during the year
  • Distributions received during the year
  • Loans to or from the LLC
  • Payments for services, rent, or other amounts
  • Any other monetary transactions between you and the LLC

Step-by-Step Filing Process

Step 1: Complete Part I -- Reporting Corporation

Fill in your LLC's details. Even though a single-member LLC is a "disregarded entity" for federal tax purposes, the IRS treats it as a corporation specifically for Form 5472 filing. Enter your EIN, legal name, address, and the nature of your business.

Step 2: Complete Part II -- 25% Foreign Shareholder

This is where you enter your personal information as the foreign owner. If your LLC has multiple foreign owners who each own 25% or more, you need a separate Form 5472 for each one.

Step 3: Skip Parts III and IV

Part III is for related parties that are not 25% shareholders, and Part IV is only relevant if the reporting corporation is foreign-owned through a chain of entities. Most single-member LLC owners will leave these blank.

Step 4: Complete Part V -- Reportable Transactions

This is the core of Form 5472. Report the dollar amount of each category of transaction between you and your LLC during the tax year. Common transactions include:

  • Line 4 -- Capital contributions: Money you put into the LLC
  • Line 13 -- Amounts paid to the reporting corporation: Services or other payments
  • Line 17 -- Distributions: Money you took out of the LLC

If you had no transactions in a category, enter zero. Do not leave lines blank.

Step 5: Complete Part VI -- Supplemental Information

If you answered "Yes" to any of the questions in Part V about non-monetary or below-market transactions, provide the requested details here.

Step 6: Attach a Pro Forma Form 1120

This is a critical step that many people miss. Form 5472 cannot be filed by itself. It must be attached to a pro forma (placeholder) Form 1120, even though your LLC does not owe corporate income tax. The pro forma 1120 is mostly filled with zeros.

How to Submit Form 5472 to the IRS

Unlike most tax forms, Form 5472 (with its pro forma 1120) cannot be e-filed. You have two submission options:

  • Fax: Send to the IRS at +1-855-887-7737. This is faster and provides instant confirmation.
  • Mail: Send to the IRS at the address listed in the Form 1120 instructions for your state. Processing takes 6-8 weeks.

Fax is strongly recommended because you get immediate confirmation that the IRS received your filing.

Common Mistakes to Avoid

  • Filing Form 5472 without a pro forma 1120: The IRS will reject it.
  • Leaving transaction lines blank instead of entering zero: Every line in Part V should have a value.
  • Missing the deadline: The penalty is $25,000 per form, per year.
  • Confusing Form 5472 with Form 5471: These are completely different forms for different situations.
  • Not filing because "my LLC had no income": You must file regardless of income if you had any reportable transactions, including capital contributions.

Simplify Your Filing with Filabl

Filing Form 5472 correctly requires attention to detail, and the penalties for mistakes are steep. Filabl automates the entire process: upload your bank statement, answer a few questions about your LLC, and we generate a correctly filled Form 5472 with the required pro forma 1120 and fax it directly to the IRS on your behalf.