WI 1CNS Information
A tax-option (S) corporation that derives income from business transacted, services performed, or property located in Wisconsin may file Form 1CNS on behalf of its nonresident shareholders who derive no taxable income or deductible loss from Wisconsin other than their pro rata shares of the Wisconsin taxoption (S) corporation income or loss.
Link to official form info: Wisconsin 1CNS
Link to official form info for 1CNS
Tax Reminder works year round to keep official tax form info up-to-date for Wisconsin and the rest of the USA. The IRS and states change their forms often, so we do the hard work for you of figuring out where the official form info is located.
To access the official link to form WI 1CNS and get reminded when it's due, sign up for a free Tax Reminder account:
- Upcoming Due Dates in the Next Year:*
- Monday Mar 17, 2025
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Create a free account to see exactly when to file this form, receive email or SMS notification reminders, and to keep a record of filing it in your history.
* Due dates are based on the filing requirements for this form and may vary depending on your tax year.
13 Wisconsin Tax Filings & Forms:
1NPR - Nonresident and Part-year Resident Income Tax Return 1 - Income Tax 1A - Income Tax Return (short form) 1NPR - Nonresident & Part-Year Resident Income Tax 1CNS - Composite Individual Income Tax Return for Nonresident Tax-Option (S) Corporation Shareholders 4 - Non-Combined Corporation Franchise or Income Tax Return 5S - Tax-Option (S) Corporation Franchise or Income Tax Return 6 - Combined Corporation Franchise or Income Tax Return TAP e-return only - Monthly Payroll Withholding TAP e-return only - Quarterly Payroll Withholding Taxes WT-7 - Annual Reconciliation of Income Tax Withheld ST-12 - Sales and Use Tax Return UCT-101 - Quarterly Contribution ReportAre we missing a Wisconsin tax form?
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