If you are a non-US founder who set up a US LLC, there is a good chance you owe the Internal Revenue Service (IRS) a form you have never heard of. Form 5472 catches many foreign owners by surprise, and the penalty for missing it is steep. Since the rules changed in 2017, most foreign-owned single-member LLCs have to file, even when the LLC made no money and owes no US tax.
One note up front. OneSafe is not a tax advisor and does not file Form 5472 for anyone. This guide is general information only, not tax advice, and OneSafe accepts no responsibility for filing decisions made from it. Treat it as a plain-language starting point, then confirm every detail with a qualified US tax professional before you file.
What is Form 5472?
Form 5472 is an IRS information return, formally the "Information Return of a 25% Foreign-Owned U.S. Corporation or a Foreign Corporation Engaged in a U.S. Trade or Business." It reports certain transactions between your US entity, called the reporting corporation on the form, and its foreign owner or other related parties. The requirement comes from Internal Revenue Code sections 6038A and 6038C.
The key word is information. Form 5472 is not a tax bill and does not calculate your taxable income. It tells the IRS who owns the business and what money moved.
The 5472 existed for decades for US corporations with foreign shareholders. In 2017 the IRS extended it to foreign-owned single-member LLCs treated as disregarded entities, which is why so many solo founders abroad now have a filing obligation.
The "form 5742" mix-up
If you searched for "form 5742," you want the same thing: it is a common misspelling of Form 5472. There is no separate 5742 filing, so you are in the right place.
Do not confuse it with Form 5471 either, the mirror-image filing US persons use when they own a foreign corporation, not the one a foreign owner files for a US entity.
Who has to file Form 5472?
Two main groups file tax form 5472.
Foreign-owned single-member LLCs (disregarded entities)
This is the group most non-US founders fall into. If you are a foreign person, a non-US individual or company, who owns 100% of a US LLC that is a single-member disregarded entity, you generally have to file Form 5472 for any year with a reportable transaction. In IRS terms, this is a foreign-owned U.S. DE.
Two things surprise people. First, this applies even if your LLC had no US income and owes no US tax; the filing is about reporting, not tax due. Second, capital contributions from the owner are reportable, so simply forming and funding the LLC often triggers a first-year filing.
To file, your LLC needs an Employer Identification Number (EIN), even with no employees. If you set up your company through an offshore incorporation service, ask whether they obtained an EIN, because you cannot file 5472 without one.
25% foreign-owned US corporations
The other group is US corporations, such as C corporations, where a foreign shareholder holds 25% or more of the voting power or value. That corporation files Form 5472 to report transactions with the foreign owner and other related parties. A foreign corporation engaged in a US trade or business can also be in scope.
Why the IRS wants it: reportable transactions with related parties
Form 5472 gives the IRS a clear view of money moving between a US entity and its related parties, foreign or domestic. A related party is, broadly, your foreign owner and others connected to that owner.
A reportable transaction is money or value moving between the entity and a related party, split on the form into monetary and non-monetary transactions. Common examples include:
- Capital contributions you put into the LLC to fund it
- Money the LLC pays back out to you
- Loans between you and the LLC
- Sales of tangible property, services, rent, royalties, or interest between the entity and a related party
- Amounts paid to use intangible property such as patents
If you are a solo founder moving your own money in and out of your US LLC, those movements are what the 5472 is designed to capture. Clean records of every transfer make the form far easier to complete, a strong reason to run the entity through a dedicated business account, not a personal one.
Form 5472 and Form 1120: how they work together
Here is the part that confuses people most. A single-member LLC does not normally file a corporate tax return. But to submit Form 5472, a foreign-owned disregarded LLC has to attach it to a pro forma Form 1120.
"Pro forma" means you are not filing a full corporate return with a tax calculation. You fill in basic identifying information at the top of the 1120, write "Foreign-owned U.S. DE" across it, and attach the 5472. The 1120 is the envelope; the 5472 is the content, filed together.
Deadlines and how to file
For a foreign-owned single-member LLC, the 5472 and its pro forma 1120 are due by the 15th day of the fourth month after your tax year ends. For a calendar-year business, that is April 15. You can file Form 7004 to request an automatic extension, typically pushing the deadline to October 15.
A foreign-owned disregarded LLC generally cannot e-file this package the way a normal 1120 is filed, and often has to submit it by mail or fax to a specific IRS address. Because the process is fiddly and the penalty is high, this is where most founders bring in a US CPA. Confirm the current-year deadline, address, and method with that professional.
Penalties for not filing Form 5472
This is why the 5472 gets so much attention. Failing to file a required Form 5472, filing it late, or filing an incomplete or inaccurate one, carries a penalty of $25,000. The penalty can apply per form and can continue to accrue if the failure is not corrected after the IRS notifies you.
That figure went up sharply, from $10,000 before the rules tightened to $25,000 today. For a small business that made little or no money, a five-figure penalty for a missed information return is a serious hit. If you did miss a filing, a tax professional may be able to seek relief with a reasonable cause statement, but that is far harder than filing on time.
How to stay compliant (and run the business once you are)
Staying on top of Form 5472 comes down to a few habits:
- Get your EIN early, so you can file when the time comes.
- Keep business money separate from personal money and log every transfer between you and your LLC, since those are the reportable transactions the form asks about.
- Work with a US tax professional who has filed 5472s for foreign owners before. Do not treat this as a DIY form.
Separating business and personal money is where a real business account matters. Once your US entity is formed and your filing setup is in place, you still have to operate: receive payments, pay contractors abroad, and move money between markets. That is where OneSafe fits.
OneSafe is a multi-currency business account and payments platform built for this kind of founder. It is the account layer you use to run a US entity from outside the US, not a bank and not a tax service. You can open a business account for international payments that lets you transact in several currencies, so a US LLC selling into Europe or Latin America is not stuck with a single-currency setup.
OneSafe supports multi-currency business accounts and offshore accounts that keep clean, trackable records of money in and out, exactly the visibility a 5472 reporting habit needs. When you pay suppliers or contractors abroad, cross-border payments run on local rails with a tracking link on every transfer, so every movement is documented.
Applying takes about 10 minutes, with full KYB verification in a few business days, and OneSafe is available for businesses in 150+ countries.
Frequently asked questions
What is Form 5472 in simple terms?
It is an IRS information return that reports transactions between a US entity and its foreign owner or other related parties. It does not calculate tax; it tells the IRS who owns the business and what money moved.
Does my foreign-owned single-member LLC really have to file if it made no money?
Often yes. The filing is triggered by reportable transactions, not by profit, and even funding the LLC can count as one. Confirm your specific situation with a tax professional.
When is Form 5472 due?
For a calendar-year foreign-owned LLC, it is generally due April 15 with the pro forma Form 1120, with an extension to October 15. Verify the current-year date with your CPA.
What is the penalty for not filing Form 5472?
The penalty for failing to file, or filing late or incompletely, is $25,000, and it can accrue further if not corrected after IRS notice.
Does OneSafe file Form 5472 for me?
No. OneSafe is not a tax advisor or a filing service and does not prepare or file Form 5472. It is the business account and payments layer you use to operate your US entity once it is formed. For the filing itself, work with a qualified US tax professional.
Once your foreign-owned US LLC is set up and compliant, you still need somewhere to run it. OneSafe is the multi-currency business account for founders operating US entities from anywhere.
Open account or Book a demo to see how it works.
This article is provided for general informational purposes only and is not tax, legal, or financial advice. OneSafe makes no guarantee of accuracy or completeness and accepts no liability for actions taken based on this content. Form 5472 rules, penalty amounts, and deadlines change and depend on your specific situation. Always consult a qualified US tax professional before filing.
