State Income Tax - WI
General administration:
Department of Revenue
PO Box 8902
Madison, WI 53708-8902
608-266-2776
Request identification number by filing Form A-101 (Application for Permit):
Income, Sales, and Excise Tax Division
PO Box 8902
Madison, WI 53708-8902
608-266-2776
Register for electronic funds transfer by filing Form A-103 (Application for Electronic Funds Transfer [EFT] Authorization):
Department of Revenue
Revenue Accounting - EFT Unit
PO Box 8912
Madison, WI 53708-8912
608-264-9918
Deposit and report semi monthly (by last day of month and 15th day of following month), monthly (by last day of following month), quarterly (by last day of month following end of quarter), or annual (by January 31) withholdings by filing Form WT-6 (Withholding Tax Deposit Report):
Department of Revenue
Box 93931
Milwaukee, WI 53293-0931
Furnish annual summary statements of wages paid and taxes withheld to employees on Form W-2 (Wage and Tax Statement) and to state on Form WT-7 (Employers Annual Reconciliation of Income Tax Withheld from Wages) by January 31:
Department of Revenue
PO Box 8920
Madison, WI 53708-8920
Report annual non-employee compensation in excess of $600 by filing Forms 9b or Forms 1099 by January 31:
Department of Revenue
PO Box 8908
Madison, WI 53708-8908
