BUSIform
Filing Addresses for State of Illinois
Federal
Busiform Envelope
Envelope Size
State
Busiform Envelope
Returns with Refunds or No Payment Department of the Treasury
Internal Revenue Service
Kansas City, MO 64999-0002
EF10-7
EF69-7
EF912-7
#10½
6 x 9
9 x 12
Illinois Department of Revenue
PO Box 1040
Galesburg, IL 61402-1040
EIL1-R
EIL6-R
EIL9-R
Returns with Balance Due Internal Revenue Service
PO Box 802501
Cincinnati, OH 45280-2501
EV10-C2
EV69-C2
EV912-C2
#10½
6 x 9
9 x 12
Illinois Department of Revenue
Springfield, IL 62726-0001
EIL1-O
EIL6-O
EIL9-O
Estimated Payments Internal Revenue Service
PO Box 802502
Cincinnati, OH 45280-2502
ES09-C2
#9
Illinois Department of Revenue
Springfield, IL 62736-0001
EIL9-ES
Corporations, Partnerships, etc

Department of the Treasury
Internal Revenue Service
Cincinnati, OH 45999

EF10-4
EF69-4
EF912-4
#10½
6 x 9
9 x 12

Note: Addresses above reflect latest information we have available, but are subject to change. If you have more up-to-date information, please Thank you.