Product Categories 1065, 1120, 1120S 2 1065 (Partnership) 1 1120 (Corporate) 2 Estimate Envelope 1 1040-V 9 1040-EZ 0 1040-All Return 11 1040-Balance Due 4 1040-Refund 4 1040-A 0 1040-ES 5 110S (S Corporation) 3 8453 (Federal E-File) 1