Who Must File Form 5472? A Guide for Expats

Form 5472 is one of the more commonly misunderstood IRS requirements for international business owners. It applies to more situations than most people expect, and the penalties for not filing are steep. This guide breaks down exactly who is required to file, when, and what the consequences are for getting it wrong.

The Three Categories of Form 5472 Filers

The IRS requires Form 5472 from three distinct groups. Understanding which group you fall into is the starting point:

1. US Corporations with 25% or More Foreign Ownership

Any US corporation where a single foreign person owns 25% or more of the stock, directly or indirectly, must file Form 5472. The 25% threshold applies to voting power or value, whichever is higher. This includes both individual foreign owners and foreign corporate shareholders.

Indirect ownership matters here. If a foreign person owns a foreign holding company, which in turn owns a US corporation, that foreign person is still considered a 25% foreign owner for Form 5472 purposes.

2. Foreign Corporations Engaged in a US Trade or Business

A foreign corporation that is engaged in a trade or business in the United States during the tax year must file Form 5472, regardless of ownership percentages. Engaging in a US trade or business typically means having employees, offices, or agents in the US who conduct meaningful business activity on the company’s behalf.

3. Foreign-Owned Single-Member LLCs Treated as Disregarded Entities

This is the category that applies to most international entrepreneurs. A US single-member LLC that is 100% owned by a non-US person and has not elected to be taxed as a corporation is treated as a disregarded entity. Despite being ‘disregarded’ for income tax purposes, these LLCs are explicitly required to file Form 5472 with a pro forma Form 1120 every year.

Being ‘disregarded’ for tax purposes does not mean having no IRS obligations. The filing requirement exists precisely because of the foreign ownership.

The Filing Requirement Does Not Depend on Income

A common misconception is that Form 5472 is only required when the LLC has income, revenue, or owes tax. This is not correct. The filing requirement is tied to the existence of the foreign-owned LLC and whether it had any reportable transactions during the year.

Reportable transactions include capital contributions, distributions, loans, payments for services, and other exchanges between the LLC and its foreign owner or related parties. Forming the LLC itself, and making any initial contribution, creates a reportable transaction in the first year.

In practice, nearly every foreign-owned LLC will have at least one reportable transaction each year, which means Form 5472 will be required.

What About LLCs with No Activity?

Even a dormant LLC, one that was formed but never actively used, typically has reporting obligations. The act of forming the LLC and any associated capital contribution is itself a transaction that must be reported. An LLC that has sat completely idle with no transactions of any kind may fall outside the filing requirement, but this is a narrow exception. When in doubt, filing is the safer choice.

Filing a Separate Form for Each Related Party

If the LLC had transactions with more than one related party during the year, a separate Form 5472 must be filed for each. For example, if a foreign owner both contributed capital and also had a separate entity that provided services to the LLC, two Form 5472s may be required.

This means penalties can multiply quickly for businesses with multiple related-party relationships. The $25,000 penalty applies per form, not per filing.

How to Know If You Are a Related Party

Form 5472 applies to transactions with ‘related parties,’ which the IRS defines broadly. Related parties include:

• The direct foreign owner of the LLC
• Any person or entity that owns 25% or more of the LLC, directly or indirectly
• Any entity that the LLC owns 25% or more of
• Any other entity that is under common control with the LLC

For most single-member LLCs owned by a foreign individual, the only related party is the owner themselves. But businesses with more complex structures should map out all related-party relationships before assuming a single filing is sufficient.

Penalties for Not Filing

The penalty for failing to file Form 5472 on time, or for filing it with materially incorrect or incomplete information, is $25,000 per form per year. This penalty can increase by $25,000 for each 30-day period the failure continues after the IRS issues a notice.

There is no income threshold that reduces the penalty. An LLC with no revenue faces the same $25,000 penalty as one with millions in turnover if they both fail to file.

What to Do If You Have Missed Filings

If you discover you should have been filing Form 5472 for prior years, the best path forward is to address it proactively. The IRS has procedures for filing delinquent international information returns. Filing before being contacted by the IRS, along with a reasonable cause statement explaining the oversight, improves the chances of getting penalties reduced or waived.

Do not ignore missed filings and hope the IRS does not notice. Enforcement of foreign-owned LLC reporting has increased significantly in recent years.

Summary: Do You Need to File Form 5472?

You likely need to file if:

• You are a non-US person and own a US single-member LLC (regardless of income)
• You are a non-US person and own 25% or more of a US corporation
• You own a foreign corporation that conducts business inside the United States
• Your US company had any financial transactions with you or any related foreign party during the year