FinCEN Form 114 is for reporting financial interest in or signature authority over a foreign bank account to the United States Department of the Treasury. Foreign accounts must be reported if their balance exceeds $10,000 at any time during the year in which they are being reported.
Form 114 may be submitted online or on paper. Accounts that must be reported to the Department of the Treasury include checking or savings accounts, brokerages and securities. Accounts in United States territories such as Guam and Puerto Rico do not have to be reported as they are considered part of the United States for the purposes of the form, as of 2015.