What Is Form 5472? The Complete 2026 Guide for Foreign-Owned US LLCs

Form 5472 is not a tax-payment form. It is an information return — a disclosure document. The form exists so the IRS can see money flowing between a US business and the foreign people or companies that control it. Congress created the requirement in Internal Revenue Code section 6038A, added by the Tax Reform Act of 1986, and extended it to foreign-owned single-member LLCs through final regulations effective for tax years beginning on or after January 1, 2017(Treasury Decision 9796).

The form carries the official title “Information Return of a 25% Foreign-Owned U.S. Corporation or a Foreign Corporation Engaged in a U.S. Trade or Business.” Two statutes govern it: section 6038A covers 25%-foreign-owned US corporations, and section 6038C covers foreign corporations doing business in the United States. A foreign-owned LLC that is treated as a disregarded entity is placed inside the section 6038A rules and treated as a corporation for this reporting purpose only.

Why Form 5472 exists

The IRS uses Form 5472 to detect transfer-pricing abuse and hidden income shifting. When a foreign owner moves money in and out of a US company, those transactions can disguise profit. Form 5472 forces disclosure of every such transaction, identified by category and dollar amount. The form has no tax calculation — it simply lists who the foreign owner is, what the US entity is, and what money changed hands.

Three types of entity must file Form 5472:

• A 25% foreign-owned US corporation. A US corporation in which a non-US person owns at least 25% by vote or value at any point in the tax year. The 25% foreign shareholder can be an individual, a foreign corporation, a foreign partnership, a trust, or an estate.
• A foreign-owned US disregarded entity. A single-member LLC whose sole member is a non-US person. Since 2017 it is treated as a corporation for this reporting purpose only, and files Form 5472 with a pro forma Form 1120. This is the most common filer by far.
• A foreign corporation engaged in a US trade or business. A non-US corporation carrying on business in the United States, reporting under IRC section 6038C rather than 6038A.

Two conditions must both be true. First, a foreign person must own at least 25%of the US entity, measured by vote or value. A “25% foreign shareholder” can be an individual, a foreign corporation, a foreign partnership, a trust, or an estate. Second, the entity must have a reportable transaction with that foreign owner or another related foreign party during the year.

Four kinds of filer fall under the rule: (1) foreign-owned US disregarded entities — single-member LLCs owned by a non-US person, which is most of this audience; (2) US corporations at least 25% foreign-owned; (3) multi-member LLCs that elected to be taxed as corporations with foreign owners; and (4) foreign corporations engaged in a US trade or business, which report under section 6038C.

The most common filer by far is the foreign-owned single-member LLC. A non-resident forms a Wyoming, Delaware, or New Mexico LLC, owns 100% of it, and uses it for e-commerce, consulting, or SaaS. That LLC is a disregarded entity, and the single foreign owner triggers the section 6038A rules.

This is the point most foreign founders miss. People assume Form 5472 applies only to companies that earn money. It does not. The trigger is a transaction, not a profit. The moment you wire money from your personal account to fund your LLC, you have created a reportable transaction.

Because forming and funding an LLC always involves moving money from the owner, virtually every foreign-owned single-member LLC has at least one reportable transactionin its first year. That is why the practical answer to “do I have to file?” is almost always yes.

The transactions founders most often miss are the indirect ones: paying the LLC’s formation fee from your personal card, reimbursing the registered agent, or making a small owner loan — each is reportable. See the complete list on reportable transactions.

The whole filing question comes down to two statutory triggers under IRC section 6038A. Answer them in order — any “No” is an off-ramp; two “Yes” answers mean you file.

If you are unsure whether a payment counts as a reportable transaction, the do I need to file qualifier and the full reportable transactions list walk through every category.

A single-member LLC is normally a disregarded entity: the IRS ignores it and looks through to the owner. For most tax purposes that is still true. But final regulations under T.D. 9796 carved out an exception: a foreign-owned disregarded entity is treated as a separate corporation solely for the reporting and record-keeping rules of section 6038A.

What the LLC must actually do

The LLC files a pro forma Form 1120. “Pro forma” means a shell return: you complete only the top identifying section — name, address, EIN, and the date and state of incorporation — and write “Foreign-owned U.S. DE” across the top. You do not complete the income or tax sections, because a disregarded entity pays no entity-level income tax. Form 5472 is stapled to that pro forma 1120, and the two are mailed or faxed together as a single package.

The LLC also needs an EIN (Employer Identification Number) before it can file. A non-resident without a Social Security Number applies for the EIN with Form SS-4, by fax or mail.

For a typical foreign-owned SMLLC, only Parts I, II, III, V, and VI are completed. Parts VIII and IX apply to large multinationals and almost never to a small founder-owned LLC.

The extension only moves the filing deadline; for a disregarded entity there is no tax to pay, so there is nothing else to extend. File Form 7004 by April 15 to claim the six-month extension. A foreign corporation filing Form 1120-F instead has a June 15 deadline. Full detail is on the Form 5472 deadline page.

This is a critical and widely misunderstood point: there is no e-file path for a foreign-owned disregarded entity filing a pro forma 1120. Software that e-files normal corporate returns will not transmit this package. The only two accepted methods are mail and fax.

⚠️ Do not mail the package to the address printed in the general Form 1120 instructions for domestic corporations — that goes to a different service center and can get the filing misrouted or treated as never filed. Every foreign-owned U.S. DE filing goes to the dedicated PIN Unit in Ogden above, or to the fax line. If you file more than one Form 5472 (one per related party), staple them all behind the single pro forma 1120 and send everything as one package.

Because timely filing is the only defense against the $25,000 penalty, keep dated proof of submission. A faxed confirmation sheet or a certified-mail green card establishes the filing date if the IRS later questions it. For the line-by-line walkthrough, see the Form 5472 instructions.

Form 5472 carries one of the harshest information-return penalties in the US tax code. The base penalty is $25,000 for each form not filed, filed late, or filed substantially incomplete. Because there is no statute of limitations on an unfiled information return, a year you missed five years ago can still be assessed today.

The penalty also compounds. If the IRS sends a notice of failure and the form is still not filed within 90 days, an additional $25,000 applies for each 30-day period that the failure continues. A founder who ignored the form for three years could face $75,000 or more. The full rule is on the Form 5472 penalty page.

DIY is free but unforgiving: the $25,000 penalty applies even to an honest mistake or a missed deadline. For a flat $299, form5472.tax prepares Form 5472 and the pro forma Form 1120, has a specialist review it, and files it the correct way — saving $248 versus form5472.online and up to $1,700versus doola.

Form 5472 cannot be mailed to the IRS on its own. The regulations require it to be attached to an income-tax return, and the only return available to a disregarded entity is a pro forma Form 1120. “Pro forma” is Latin for “as a matter of form” — the 1120 here is a formality, a cover sheet, not a real tax computation.

What you fill in — and what you leave blank

You complete the entity identification block at the top of page 1: the LLC's legal name, US mailing address, EIN, the date it was formed, and the total assets line. You write “Foreign-owned U.S. DE” across the top margin. Every income, deduction, and tax line on the rest of the 1120 stays blank, because a disregarded entity pays no entity-level federal income tax. The completed package is one pro forma 1120 with one Form 5472 stapled behind it.

If the LLC had more than one related foreign party, it files a separate Form 5472 for each, all attached to the same single pro forma 1120. A typical single-owner LLC files exactly one of each.

The exemptions are narrow and rarely help a founder-owned LLC. The main exception is simple: if the US entity had zero reportable transactions with any related foreign party for the entire year, it has nothing to report and does not file. In practice this almost never happens in the first year, because forming and funding the LLC creates a reportable transaction on day one.

Because the exemptions are so limited, the safe assumption for any foreign-owned single-member LLC is that it must file — for all six exceptions and why they rarely apply, see the full Form 5472 exemptions guide, and check whether a dormant LLC must file. If you are unsure whether you had a reportable transaction, the do I need to file qualifier walks through it in under a minute.

Form 5472 is only half of the section 6038A obligation. The statute also imposes a record-keepingrequirement. The entity must maintain permanent books and records that substantiate the amount and nature of each reportable transaction with a related party. For a small LLC, that means keeping bank statements, the operating agreement, loan agreements, invoices, and a simple ledger of money moving between you and the company.

Why record-keeping matters

If the IRS examines the entity and the records are missing, a separate $25,000 penalty applies under section 6038A(d) for failure to maintain records — on top of any penalty for failing to file the form. The records also matter because the foreign owner must, in some cases, sign an authorization of agent (Form 8865-style agency, executed on Form 2848 or a written authorization) so the US entity can act as the owner's agent if the IRS requests documents. Keeping clean records turns a stressful audit into a routine document request.

The two forms are constantly confused because both involve cross-border ownership, but they are mirror images of each other. The simplest way to remember: 5472 = foreign money into a US company; 5471 = US person into a foreign company.

Almost every foreign founder of a US LLC files Form 5472. You would only file Form 5471 if you, as a US taxpayer, owned a corporation in another country — a different situation entirely. See the full Form 5472 vs Form 5471 comparison.

Most penalties do not come from fraud. They come from simple, avoidable errors by founders who did not know the rules. The five mistakes below cause the overwhelming majority of problems.

Each of these is preventable. A specialist who files Form 5472 every day catches all five automatically, which is the core reason foreign founders pay $299 rather than risk a $25,000 penalty on a do-it-yourself attempt.

Many foreign founders assume a small, low-revenue LLC stays invisible. It does not. The moment you applied for an EIN on Form SS-4, you told the IRS that a foreign-owned US entity exists, who its responsible party is, and what it does. That EIN sits in IRS systems permanently, and an EIN with no corresponding Form 5472 or pro forma 1120 on file is exactly the pattern used to build non-filer lists.

For most tax returns the IRS has three years to assess after you file. An unfiled information return like Form 5472 never starts that clock, so a year skipped five or ten years ago can still be assessed at the full $25,000 per form — and each missed year is a separate penalty. The practical takeaway: if you have an active EIN and have not filed, catch up with dated proof of submission rather than hoping the entity stays unnoticed.

There is only one authoritative source for Form 5472: the IRS.gov website. The form and its instructions are published as two separate PDF documents— the fillable form itself and a standalone instruction booklet that explains every line. Both are completely free to download; the IRS never charges to obtain a form. Searching “Form 5472” on irs.gov lands on the form's information page, where the form PDF and the “Instructions for Form 5472” PDF are linked side by side.

Filing the current revision is not optional. The IRS prints a revision date in the top-left corner of the form, and the version in force for the 2025 tax year is the December 2025 revision. Each revision can change line numbers, add a part, or alter how a transaction is categorized. Submitting an old revision risks having the return treated as substantially incomplete — which under IRC section 6038A is the same as not filing and exposes you to the full $25,000 penalty.

The form and the instructions are separate documents

Founders often download only the form and miss the instruction booklet entirely. The instructions are where the IRS defines a reportable transaction, lists the country and currency codes, explains the mailing and fax rules for a foreign-owned disregarded entity, and confirms there is no e-file pathfor that filing. Reading the instructions alongside the form is the only way to complete it correctly.

Beware of third-party sites that charge for “the official form” or host stale copies in search results — both are common traps. Always confirm the address bar reads irs.gov and that the revision date matches the current one before you print, complete, and mail or fax the package. When form5472.tax prepares your filing, we pull the current-revision form and instructions directly from the IRS so you never have to track the revision yourself — part of the flat $299 service.