Introduction

If your U.S. business is at least 25% owned by a foreign person or entity, or if you're a foreign corporation doing business in the United States, you may need to file IRS Form 5472. This form reports certain transactions between your business and related foreign parties — and missing it can mean a $25,000 penalty.

What is IRS Form 5472?

IRS Form 5472 is an information return that foreign-owned U.S. corporations and foreign corporations engaged in U.S. trade or business use to report transactions with related foreign parties. It's filed under Internal Revenue Code sections 6038A and 6038C and is required any time a reportable transaction occurs between the business and a related party.

The form doesn't calculate tax owed — it's a disclosure document. The IRS uses it to track money moving between U.S. businesses and their foreign owners or affiliates. That distinction matters: you can owe no U.S. income tax and still be required to file Form 5472.

Who needs to file Form 5472?

Form 5472 applies to two categories of businesses. The first is a U.S. corporation that is at least 25% owned — directly or indirectly — by a foreign person or entity. The second is a foreign corporation that has income effectively connected with a U.S. trade or business. If your business fits either description and has reportable transactions, you need to file.

Single-member LLCs owned by a foreign person are treated as disregarded entities for U.S. tax purposes — but they're not off the hook. A foreign-owned single-member LLC must file Form 5472 if it has any reportable transactions with its foreign owner, including contributions, distributions, loans, rents, royalties, or services. This catches a lot of foreign entrepreneurs off guard.

Exceptions to the filing requirement

Some businesses that technically qualify as reporting corporations don't have to file if no reportable transactions occurred during the tax year. There are also treaty-based exceptions for certain foreign corporations. A tax professional can help you figure out whether an exception applies to your situation — the rules are narrow and the penalty for getting it wrong is steep.

How Form 5472 filing works

Form 5472 is filed as an attachment to your business's federal income tax return — typically Form 1120 for corporations. For foreign-owned disregarded entities like single-member LLCs, the form is attached to a pro forma Form 1120 filed using the entity's own Employer Identification Number (EIN). The due date matches your tax return deadline, including extensions.

Reportable transactions cover a wide range. Sales and purchases of property, leases, loans, services, and other transfers of value between the reporting corporation and a related party all count. A related party includes any person or entity that owns at least 25% of the reporting corporation directly or indirectly, as well as entities under common control.

Most businesses can file Form 5472 electronically. The exception is foreign-owned U.S. disregarded entities, which must paper-file and mail the return to the IRS address designated for international filers. Check the current Form 5472 instructions for the correct mailing address before filing.