Clarification - FinCEN Form 114 is a not an IRS form. It goes to the Treasury Department. This is noted correctly (with link) in the first comment by TaxGuyBill...
As correctly stated above, if you are the owner of or have signature authority over funds in a foreign bank (foreign financial institution, FFI) you need to ...
As correctly stated above, if you are the owner of or have signature authority over funds > 100K in a foreign bank (foreign financial institution, FFI) you need...