WI ST-12 Information

This return and schedule are for reporting (or amending previously filed) state, county, and stadium sales and use taxes. This return must be filed when due, even if you have no tax to report or pay.

Link to official form info:

Link to official form info for ST-12

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 ST-12 and get reminded when it's due, sign up for a free Tax Reminder account:

  • Upcoming Due Dates in the Next Year:*
  • Wednesday Apr 30, 2025
  • Monday Jun 02, 2025
  • Monday Jun 30, 2025
  • Thursday Jul 31, 2025
  • Monday Sep 01, 2025
  • Tuesday Sep 30, 2025
  • Friday Oct 31, 2025
  • Monday Dec 01, 2025
  • Wednesday Dec 31, 2025
  • Monday Feb 02, 2026
  • Monday Mar 02, 2026
  • Tuesday Mar 31, 2026
  • 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.

Never forget to file WI ST-12 again.
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