I am a U.S. custodian. Do I need to report payments of brokerage fees and commissions?

A U.S. custodian does not need to report unless there is no other U.S. financial intermediary involved in the transaction. If a U.S. broker is involved in the transaction, the broker should report payments of brokerage commissions. If there is no U.S. broker involved with the transaction, and a U.S. financial manager is involved, the U.S. financial manager should report. When neither a U.S. broker nor a U.S. manager is involved in the transaction, the U.S. custodian should report. For example, if a U.S. principal uses a foreign manager but a U.S. custodian, then the U.S.