Wisconsin DOR Publishes Revised 2025-2026 Business Tax Calendar

Oct. 23, 2025, 4:12 PM UTC

The Wisconsin Department of Revenue (DOR) published a revised business tax calendar for the period Oct. 27, 2025, through March 31, 2026. The calendar contains due dates for filing returns and paying various business taxes. [Wisc. Dep’t of Revenue, Business Tax Calendar, 10/22/25]

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