Yes, as a U.S. person, you are required to report foreign financial accounts, including joint accounts held with your non-U.S. spouse, on your Foreign Bank and Financial Accounts (FBAR) filing if the aggregate value of all your foreign financial accounts exceeds the threshold set by the U.S. Department of the Treasury.
If the total value of all your foreign financial accounts, including the joint account with your non-U.S. spouse, exceeds $10,000 at any time during the calendar year, you must report all of your foreign financial accounts on your FBAR filing.
It's essential to accurately report all foreign financial accounts to remain compliant with FBAR requirements. Failure to report foreign accounts when required can result in significant penalties.
Find more about FBAR here: FBAR: Requirements, Deadlines, and How to File