Short answer: The 12 Form 5472 errors we see most often: (1) assuming no revenue or activity means no filing; (2) listing only the direct shareholder and missing the ultimate owner holding 25% or more through a Hong Kong or BVI company; (3) putting several related parties on one form; (4) omitting transactions with sister companies under the same parent; (5) not reporting expenses paid by the owner or parent as contributions or loans; (6) leaving the beginning and ending balances off the loan lines; (7) a disregarded entity using the owner's TIN or having no EIN; (8) a disregarded entity skipping Part V contributions and distributions; (9) skipping nonmonetary and less-than-full-consideration transactions; (10) interest and royalties on the 5472 not matching Form 1042-S and the transfer pricing file; (11) assuming the parent's extension covers the LLC; (12) not keeping records that can verify the transactions. Each one carries penalty exposure starting at $25,000.
A quick refresher: who files and what is reported
Two kinds of companies file Form 5472: a U.S. corporation in which a foreign person (individual or company) owns 25% or more directly or indirectly, and a U.S. single-member LLC wholly owned by a foreign person (a disregarded entity), which has been treated as a corporation for this purpose since tax years beginning in 2017. Both are "reporting corporations."
What is reported is every "reportable transaction" between the reporting corporation and a "related party." A related party is not just the shareholder: the 25% foreign shareholder, and anyone related to it (sister companies, the shareholder's family members, companies in the same controlled group) all count. Reportable transactions include sales, purchases, service fees, rents, royalties, interest, loans, and, for a disregarded entity, contributions and distributions; nonmonetary transactions must also be described.
The 12 errors below are ordered by how often we see them, each with the cause and the fix.
The 12 most common mistakes
| # | Mistake | Why it happens | Fix |
|---|---|---|---|
| 1 | Assuming no revenue or no activity means no filing | Form 5472 is mistaken for an income tax return; it actually reports related-party dealings, and a single capital contribution is enough to trigger it | File for any year with any related-party transaction; for a true zero year, keep evidence |
| 2 | Listing only the direct shareholder and missing the indirect 25% owner | Ownership runs through Hong Kong, BVI or several holding layers and nobody applied the attribution rules upward | List both the direct and the ultimate indirect shareholder in Part II, every 25% owner at every layer, with an ownership chart attached |
| 3 | Several related parties on one form | Saving effort by combining the parent's and sister company's transactions on one form | One Form 5472 per related party with transactions; Part III names only that party |
| 4 | Omitting sister-company transactions | Believing only shareholders are related parties; the sister company "is not a shareholder" | Every company under the same parent's control is a related party: purchases from the Chinese factory and service fees to the Hong Kong company are all reportable |
| 5 | Expenses paid by the owner or parent not reported | The money never passed through the U.S. company's bank account and was never booked | Book the expense first (against a contribution or loan), then report it in Part IV or Part V |
| 6 | Loan lines show interest but no balances | The loan lines in Part IV call for beginning and ending balances (or the monthly average) and get treated as an "amount" line | Enter beginning and ending balances from the agreement and reconciliation; interest goes on the interest line and is matched to Form 1042-S |
| 7 | Disregarded entity using the owner's TIN or no EIN | No EIN was obtained at formation, so the owner's ITIN or the parent's EIN was used at filing time | Obtain a separate EIN for the LLC and use it on every 5472 and 7004; keep the Form SS-4 submission record while it is pending |
| 8 | Disregarded entity skipping Part V | Only the Part IV monetary lines were completed; nobody knew Part V is specific to disregarded entities | Report contributions, distributions and formation or dissolution amounts in Part V, which is the first thing the IRS checks for a disregarded entity |
| 9 | Nonmonetary transactions skipped | No cash moved, so it felt like "no transaction" | Free use of the parent's trademark, parent employees supporting the U.S. company for free, the parent guaranteeing a bank loan: describe them in Part VI |
| 10 | Inconsistent with Form 1042-S and the transfer pricing file | The bookkeeping team prepares the 5472, someone else prepares the 1042-S and a third party writes the transfer pricing report, each on its own basis | Build a year-end related-party schedule: amount, agreement, 5472 line and 1042-S income code for every transaction type, reconciled before any form goes out |
| 11 | Assuming the parent's or owner's extension covers the LLC | The disregarded entity is treated as part of the parent's filing | The disregarded entity files its own Form 7004 under its own EIN; the parent's 1120-F extension is irrelevant to it |
| 12 | No records that can verify the transactions | Only the form was kept, not the agreements, invoices, reconciliations and payment evidence | The §6038A record-keeping requirement carries the same weight as the filing requirement; build an annual file per related party |
Three consequences that are easy to underestimate
- The penalty is counted per form. A company with three related parties that misses or misfiles one year faces three forms, $75,000 and up, plus $25,000 per form for each 30-day period after IRS notice without correction.
- The statute of limitations does not close. For a year with an unfiled Form 5472, the three-year assessment period for the entire Form 1120 never starts (§6501(c)(8)), not just for the 5472-related items. Years long past can still be adjusted in full.
- It surfaces in diligence and financing. A buyer's or investor's tax diligence almost always tests Form 5472 completeness, and missing years become closing conditions or price adjustments; see what U.S. tax due diligence looks at before financing or M&A.
What to do when you find an error
If a form was filed but is wrong or incomplete, file a corrected Form 5472 with an amended return (Form 1120-X or an 1120 marked amended for a corporation; a pro forma 1120 marked amended for a disregarded entity) with a short explanation. Correcting does not automatically trigger a penalty, and being found later carries more risk than correcting now.
For years never filed, file each year's Form 5472 with a reasonable-cause statement; see how to write a reasonable-cause statement for a late Form 5472. The IRS is noticeably more receptive to a voluntarily corrected first failure with a sound explanation than to one explained after examination.
B&G US Tax handles Form 5472 catch-up filings and corrections for a fixed fee per year, with a free first consultation. Send the ownership chart and the list of related-party dealings first, and we will tell you which years and how many forms are needed.
