Form 5471 Schedule M is used by U.S. persons who are officers, directors, or shareholders in certain foreign corporations to report transactions between the foreign corporation and its shareholders or other related persons. This form helps ensure compliance with U.S. tax laws regarding international transactions.

U.S. persons who are officers, directors, or shareholders in a controlled foreign corporation.

It is a form used to report transactions between a controlled foreign corporation and its U.S. shareholders or other related persons.

It is due with the U.S. person's income tax return, typically the same date as the return's due date.

No signature is required, but it's advisable to check for any updates on the IRS website.