Wisconsin S-Corporations Form Availability
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Form 1CNS, Composite Individual Income Tax Return for Nonresident Shareholders
01/16/2026
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Schedule R, Wisconsin Research Credits
01/16/2026
coming soon
Form Corp-ES, Wisconsin Corporation Estimated Tax Voucher
01/16/2026
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Schedule HR, Historic Rehabilitation Credits
01/16/2026
coming soon
Apportionment Percentage for Interstate Motor Carriers
01/16/2026
coming soon
Schedule MA-M, Manufacturing Credit
01/16/2026
coming soon
Schedule MA-A, Agricultural Credit
01/16/2026
coming soon
Form A-222, Power of Attorney
01/16/2026
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Form Corp-ES-EXT, Corporation Extension Voucher
01/16/2026
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Schedule EC, Enterprise Zone Jobs Credit
01/16/2026
coming soon
Credit for Net Tax Paid to Another State
01/16/2026
coming soon
Form 5S, Tax-Option (S) Corporation Franchise or Income Tax Return
01/16/2026
coming soon
Receipts Factor for Interstate Brokers-Dealers, Investment Advisors, Investment Companies, and Underwriters
01/16/2026
coming soon
Schedule VC, Venture Capital Credits
01/16/2026
coming soon
Form U, Underpayment of Estimated Tax by Corporations
01/16/2026
coming soon
Apportionment Percentage for Interstate Telecommunications Companies
01/16/2026
coming soon
Entity–Level Tax Computation
01/16/2026
coming soon
Premiums Factor for Insurance Companies
01/16/2026
coming soon
Apportionment Percentage for Interstate Financial Institutions
01/16/2026
coming soon
Single Sales Factor Apportionment Data for Nonspecialized Industries
01/16/2026
coming soon
Form N, Nonapportionable and Separately Apportioned Income
01/16/2026
coming soon
Schedule MS, Manufacturer's Sales Tax Credit Carryforward Allowable
01/16/2026
coming soon
Form C-EPV, Corporation Electronic Payment Voucher
01/16/2026
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Schedule 5K-1, Shareholder's Share of Income, Deductions, etc.
01/16/2026
coming soon
Schedule RT, Related Entity Expenses Disclosure Statement
01/16/2026
coming soon
Schedule BD, Business Development Credit
01/16/2026
coming soon
Schedule DE, Disregarded Entity Schedule
01/16/2026
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Form WI Sch AR, Explanation of Amended Return
01/16/2026
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