Information return on a foreign company the company owns (S corporations and partnerships)
File Form 5471 with Form 1120-S or Form 1065 for each foreign corporation in which the company holds 10% or more, with the schedules its category of filer requires. The extension of the return extends it.
- When
- By the 15th day of the 3rd month after the fiscal year ends (March 15 for a calendar year).
- Agency
- IRS
- Form
- Form 5471
- Applies to
- S corporations, partnerships and LLCs taxed as partnerships in the United States, owning 10% or more of a company outside the US.
- If missed
- $10,000 per form per year, plus $10,000 for each month after an IRS notice, up to $50,000 more
- Source
- www.irs.gov, read October 22, 2026
An S corporation or partnership that owns 10% or more of a company organized outside the United States reports it every year on Form 5471, attached to its own return by the 15th day of the third month after the year ends. The form asks for the foreign company's balance sheet, income statement and transactions with the US owner, and the penalty is $10,000 per form whether or not any tax is due.
Next dates
For a calendar year company. Weekend and holiday dates are moved to the next business day, as the IRS does.
- March 15, 2027
- March 15, 2028
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