Form 5472 reports certain transactions between a US company and a foreign owner or related party. For foreign-owned single-member LLCs, it is filed with a "pro forma" Form 1120. Many founders learn about the requirement years late, often when a bank, accountant or the IRS raises it. This article explains the penalty and the practical steps to fix a missed filing. For the basics, start with our Form 5472 guide.
How the penalty works
- Initial penalty: $25,000 for each Form 5472 that is not filed on time, or that is filed incomplete or inaccurate.
- Continuation penalty: if the failure continues for more than 90 days after the IRS mails a notice, an additional $25,000 applies for each 30-day period (or part of one) until the problem is corrected.
- Per form, per year: a company that missed three years can face the penalty for each year, and for each related party for whom a form was required.
The IRS can also treat the failure as leaving the statute of limitations open for related items on the return, which is another reason to resolve it properly.
Common reasons filings are missed
- The owner believed an LLC with no income or no tax due had no filing
- No one realised that capital contributions and owner loans are reportable
- A formation service did not mention the annual requirement
- The form was prepared but filed in the wrong place or without the required pro forma Form 1120
Deadlines
The return and Form 5472 are due on the 15th day of the fourth month after the tax year ends, which is April 15 for calendar-year companies. Form 7004 extends the deadline by six months, to October 15, but does not extend time to pay any tax due. For calendar-year companies that filed Form 7004, October 15 is therefore the extended deadline.
What to do if you are late
- Confirm the facts. Establish which years you were required to file and which transactions occurred in each.
- Reconstruct the records. You need accurate figures for contributions, loans, distributions and related-party payments. Good bookkeeping is what makes this possible.
- Prepare the delinquent returns. Each year needs its own pro forma Form 1120 with Form 5472, following the form instructions.
- Include a reasonable cause statement. Explain the facts that led to the omission and why you acted responsibly. The IRS decides whether to abate the penalty, and outcomes vary by case.
- File as the instructions direct and keep proof of delivery or fax confirmation.
- Respond to notices on time. If a penalty notice arrives, there are deadlines to dispute it.
Reasonable cause: what helps
A reasonable cause statement is stronger when it shows a good compliance history, a genuine misunderstanding of the rules, and prompt action once the issue was found. Facts matter more than excuses, and unsupported claims do not help. Because the rules and IRS practice change, take advice before filing late returns for several years.
How to avoid it next year
- Add the Form 5472 deadline to your calendar with a reminder at least 60 days ahead
- Record every owner transaction in your books as it happens
- Keep the company's money fully separate from yours
- Use a provider who files proactively, not only on request
If you think you have missed one or more years, our cross-border tax compliance team can assess your position and prepare the filings.
Frequently asked questions
What is the penalty for not filing Form 5472?
The penalty is $25,000 per form, per year, with additional $25,000 amounts for each 30-day period after 90 days from an IRS notice if the failure continues.
Can the Form 5472 penalty be removed?
The IRS can abate it for reasonable cause. Success depends on the facts and the supporting statement, and is not guaranteed.
Do I need Form 5472 if my LLC has no income?
Yes, if the LLC had reportable transactions such as owner contributions or loans. No income does not remove the filing requirement.
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