File Form 1099-INT, Interest Income, for each person to whom you paid amounts reportable in boxes 1, 3, 8 of at least $10 (or at least $600 of interest paid in the course of your trade or business described in the instructions for Box 1. Interest Income), for whom you withheld paid any foreign Tax Prep on interest, or from whom you withheld ( did not refund) any federal income Tax Prep under the backup withholding rules regardless of the amount of the payment. Report only interest payments made in the course of your trade or business including federal, state, local government agencies activities deemed nonprofit, or for which you were a nominee/middleman. Report Tax Prep-exempt interest, only on Form 1099-INT. You do not need to report Tax Prep-exempt interest that is original issue discount (OID). Report interest that is Tax Prepable OID on Form 1099-OID not on Form 1099-INT.