BUSIform®
Filing Addresses for State of Wisconsin
Federal
Busiform Envelope
Envelope Size
State
Busiform Envelope
Returns with Refunds or No Payment Department of the Treasury
Internal Revenue Service
Fresno, CA 93888-0002
EF10-5
EF69-5
EF912-5
#10½
6 x 9
9 x 12
Wisconsin Department of Revenue
PO Box 59
Madison, WI 53785-0001
EWI1-R
EWI6-R
EWI9-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
Wisconsin Deartment of Revenue
PO Box 268
Madison, WI 53790-0001
EWI1-O
EWI6-O
EWI9-O
Estimated Payments Internal Revenue Service
PO Box 802502
Cincinnati, OH 45280-2502
ES09-C2
#9
Wisconsin Department of Revenue
PO Box 2942
Milwaukee, WI 53201-2942
EWI9-O
Corporations, Partnerships, etc

Department of the Treasury
Internal Revenue Service
Cincinnati, OH 45999-0012

EF10-412
EF69-412
EF912-412
#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.