Can you clarify for me the requirement of the bank filing a CMIR? I have read the definitions on the form of what a 'monetary instrument' is but I am still confused as to whether this includes all checks (negotiable instruments) or just the specific ones named. To me, a monetary instrument means an official check, cashier's check, travelers check, or money order while a negotiable instrument includes a check issued from me to you but the definition on the form for a monetary instrument seems broader. For instance, if I have a company check payable to another company that deposits the check at my bank for over $10,000. I then mail the check via the postal service to a bank in Canada for collection. Am I supposed to file a CMIR?

It's the old form, but I imagine the same rules apply.

https://www.fincen.gov/forms/files/fin105_cmir.pdf