Form 5472 Explained: Who Files, When, and What's at Stake
Form 5472 is an IRS information return. It reports money and property moving between a US company and its foreign owners or other related parties. If you’re a non-US person who owns a single-member US LLC, or 25% or more of a US corporation, your company files it for every year it has a reportable transaction, even with zero income.
No tax is due with the form. It exists so the IRS can see what passes between a US company and the people who own it from abroad. The penalty for skipping it is large enough to make it the most important piece of first-year paperwork.
What Form 5472 does, and why it matters to you
According to the IRS’s Form 5472 overview page, the full name is the Information Return of a 25% Foreign-Owned U.S. Corporation or a Foreign Corporation Engaged in a U.S. Trade or Business. In plain words, it’s a yearly disclosure of three things: who owns the company, who the related parties are and what moved between them during the year.
Three things make it different from a normal tax return:
- It reports transactions, not profit. A company with no revenue can still have plenty to report.
- It carries no tax and no IRS filing fee. What it costs you depends on whether you hire a tax professional and how many transactions and related parties you have.
- The penalty is a fixed amount. It doesn’t depend on income, so a small, inactive LLC faces the same penalty for a missed form as a large company.
Who has to file, and who doesn’t
The IRS instructions for Form 5472 call the company that files a “reporting corporation.” That term covers three kinds of company:
- a US corporation that is at least 25% foreign-owned at any time during the tax year
- a foreign corporation doing business in the US
- since tax years beginning in 2017, a US LLC wholly owned by one foreign person
Owning 25% means holding at least a quarter of the voting power or the value, directly or indirectly.
“Foreign person” is narrower than many owners expect. A US citizen living abroad is not a foreign person, and neither is a US tax resident such as a green card holder. A non-US individual is a foreign person, and so is a company organized outside the US.
| Your situation | Form 5472? | Filed with |
|---|---|---|
| Non-US individual who is the only owner of a US LLC | Yes, for any year with a reportable transaction | A pro forma Form 1120 (a corporate return used only to carry information) |
| Foreign company that is the only owner of a US LLC | Yes, same rule | A pro forma Form 1120 |
| US corporation (including an LLC taxed as a corporation) with a foreign owner of 25% or more at any point in the year | Yes, if it had reportable transactions with a related party | The corporation’s own Form 1120 |
| Foreign corporation engaged in a US trade or business | Generally yes, unless an IRS exception applies | Form 1120-F |
| US LLC with two or more owners, taxed as a partnership | Not as a Form 5472 filer. Partnerships with foreign partners have their own filing rules. | Form 1065 (have a tax professional review it) |
| US citizen or green card holder living abroad who owns a single-member LLC | No | Not applicable |
| Single-member LLC owned by a US person | No | Not applicable |
The IRS lists a few exceptions. The main one is for a company that had no reportable transactions at all. The others cover specific structures, and several of them don’t apply to foreign-owned single-member LLCs.
Does an LLC need to file Form 5472?
Yes, if it has a single foreign owner. A single-member LLC is normally a “disregarded entity”: for income tax, the IRS ignores it and looks straight through to the owner. For this one reporting purpose, though, the IRS treats a foreign-owned single-member LLC as a corporation. That’s why it files a form meant for corporations.
It’s also why the LLC files a pro forma Form 1120. This isn’t a real corporate tax return and doesn’t calculate any tax. It’s the cover document that Form 5472 is attached to, and the IRS asks for only a few identifying details on it, including the company’s EIN.
Having no income doesn’t exempt the LLC. What triggers the filing is a reportable transaction, and a foreign-owned LLC almost always has one in its first year.
What counts as a reportable transaction
A reportable transaction is a dealing between the company and a related party. A related party can be a 25% foreign owner, someone related to the company or to that owner, or anyone else the tax rules treat as related. The IRS groups these transactions into three kinds:
- Money transactions: sales, purchases, rents, royalties, fees for services, commissions, loans and interest.
- Owner transactions (foreign-owned single-member LLCs only): amounts paid or received when the LLC is formed, dissolved, bought or sold. This includes the owner’s contributions to the LLC and distributions from it.
- Non-cash or below-value transactions: property, services or rights exchanged for something other than money, or for less than full value.
Owner transactions matter most for new owners. Paying for your LLC’s formation, putting money into its bank account or taking money out are all reportable, even if the company never sold anything.
The company files a separate Form 5472 for each related party it had reportable transactions with. One foreign owner usually means one form. An owner plus a related foreign company that also did business with the LLC means two.
A short example
Ana lives in Portugal. In 2026 she forms a single-member Delaware LLC, pays the formation costs herself and transfers start-up money into the LLC’s US bank account. The LLC earns nothing in 2026.
Ana doesn’t file US taxes herself, so her LLC uses the calendar year. Her formation payments and the money she put into the account count as owner transactions. That means the LLC files Form 5472 with a pro forma Form 1120 for 2026, due April 15, 2027. If it requests an extension by that date, the deadline moves to October 15, 2027. The lack of income makes no difference.
When Form 5472 is due
According to the IRS, Form 5472 is due with the company’s income tax return, by that return’s due date including extensions. For a foreign-owned single-member LLC, that return is the pro forma Form 1120. The IRS instructions for Form 1120 set its due date as the 15th day of the 4th month after the tax year ends. For a calendar-year company that’s April 15, or the next business day if April 15 falls on a weekend or holiday.
The LLC can get more time by filing Form 7004 by the original due date. The IRS instructions for Form 7004 give an automatic extension, generally of six months. The extension only moves the filing deadline.
A corporation that is 25% foreign-owned attaches Form 5472 to its regular Form 1120. The form follows that return’s due date and extension rules.
Foreign-owned single-member LLCs face one extra hurdle. The IRS doesn’t accept their Form 5472 electronically, and their pro forma return doesn’t follow the normal Form 1120 filing instructions. A tax professional who knows these filings will handle both correctly.
You need an EIN before you can file
The pro forma Form 1120 asks for the company’s Employer Identification Number (EIN), so an LLC can’t complete the filing without one. The IRS issues EINs, and the IRS’s EIN page shows current timing. Don’t leave the application until filing season. Owners without a US Social Security number can still get an EIN for their company.
The penalty for not filing Form 5472
The IRS penalty for not filing Form 5472 on time and in the required way is $25,000. If the failure continues more than 90 days after the IRS notifies the company, an extra $25,000 applies for each related party, for each 30-day period or part of one.
Three details make this stricter than it looks:
- Incomplete counts as missing. The IRS treats a substantially incomplete Form 5472 as a failure to file.
- Missing records count too. The same penalty applies if the company doesn’t keep the records the rules require.
- False information is worse. Criminal penalties may apply for withholding information or for filing false or fraudulent information.
If you’ve realized you missed a prior year, get the missing filings prepared and have a qualified tax professional review your situation. Whether any penalty relief is available depends on your facts, and a professional needs to judge that.
Records to keep
The IRS requires a reporting company to keep books and records that are good enough to show its federal return is correct. That includes records of its transactions with related parties. For a foreign-owned LLC, it means a clear record of every amount that moves between you and the company.
- Bank statements for the company’s accounts.
- Records of each contribution you made and each distribution you took, with dates and amounts.
- Receipts for formation and other costs you paid personally for the company.
- Agreements and invoices for any loans, services or sales between the company and you or your related businesses.
- Copies of each year’s Form 5472 and pro forma Form 1120 as filed.
Keeping the company’s money separate from your own makes each year’s form much easier to prepare accurately.
How Form 5472 differs from forms it’s confused with
- Form 5471 works in the opposite direction. US persons file it to report their interests in foreign corporations, while Form 5472 reports a US company’s dealings with its foreign owners.
- A regular Form 1120 is a corporation’s income tax return. A foreign-owned single-member LLC files only a pro forma version to carry Form 5472, unless it has chosen to be taxed as a corporation.
- Form 1120-F is the income tax return of a foreign corporation. A foreign corporation doing business in the US attaches its Form 5472 to it.
- Your personal US tax return, if you need one, is a separate filing, and Form 5472 isn’t attached to it. Whether you personally owe US tax depends on your income, so ask a tax professional.
Frequently Asked Questions
Do I have to file Form 5472 every year?
You file for every tax year in which the company has a reportable transaction with a related party. If an LLC truly has no transactions with its owner in a year, it may not need to file. Any contribution, distribution or payment between you and the company brings the requirement back.
Is Form 5472 still required in the year I close my LLC?
Usually, yes. Amounts paid or received when a foreign-owned LLC is dissolved, including final distributions to you, are reportable. Plan on one last filing for the year the company closes.
Can I prepare Form 5472 myself?
Yes. The penalty is the same whether the form is missing or substantially incomplete, though, so it’s worth having a tax professional prepare it, especially in the first year or when there are several related parties.
I haven’t formed my company yet. Should Form 5472 change my plans?
It shouldn’t stop you. It’s a yearly filing you can plan for from day one. If you’re still choosing a structure, our guide to forming a Delaware LLC walks through the choices. A tax professional can tell you whether an LLC or a Delaware corporation suits your situation better.
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Have a question about your specific situation? Contact us. This article is for informational purposes only and does not constitute legal or tax advice.
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