Individuals Calendar

  
  
  
  
  
  
  
  
  
3/1/2026 12:00 AM3/1/2026 11:59 PMYes
  
3/2/2026 12:00 AM3/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Individuals/2026-03-02-Individual-income-tax-due-for-farmers-and-fishers-who-did-not-make-estimate-payment.ics
  
3/22/2026 12:00 AM3/22/2026 11:59 PMYes
  
4/15/2026 12:00 AM4/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Individuals/2026-04-15-Individual-income-tax-returns-due.ics
  
4/15/2026 12:00 AM4/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Individuals/2026-04-15-Fiduciary-income-tax-returns-due.ics
  
4/15/2026 12:00 AM4/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Individuals/2026-04-15-1st-quarter-individual-income-tax-estimated-payment-due.ics
  
4/26/2026 12:00 AM4/26/2026 11:59 PMYes
  
5/25/2026 12:00 AM5/25/2026 11:59 PMYes
  
5/31/2026 12:00 AM5/31/2026 11:59 PMYes
  
6/5/2026 12:00 AM6/5/2026 11:59 PMYes
  
6/6/2026 12:00 AM6/6/2026 11:59 PMYes
  
6/7/2026 12:00 AM6/7/2026 11:59 PMYes
  
6/15/2026 12:00 AM6/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Individuals/2026-06-15-1-ES-2nd-quarter-estimated-payment-due-for-individual-income-estates-and-trust.ics
  
6/21/2026 12:00 AM6/21/2026 11:59 PMYes
  
7/26/2026 12:00 AM7/26/2026 11:59 PMYes
  
8/23/2026 12:00 AM8/23/2026 11:59 PMYes
  
9/7/2026 12:00 AM9/7/2026 11:59 PMYes
  
9/15/2026 12:00 AM9/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Individuals/2026-09-15-1-ES-3rd-quarter-estimated-payment-due-for-individual-income-estates-and-trusts.ics
  
9/18/2026 12:00 AM9/18/2026 11:59 PMYes
  
9/19/2026 12:00 AM9/19/2026 11:59 PMYes
  
9/20/2026 12:00 AM9/20/2026 11:59 PMYes
  
10/15/2026 12:00 AM10/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Individuals/2026-10-15-Fiduciary-income-tax-returns-extension-deadline.ics
  
10/15/2026 12:00 AM10/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Individuals/2026-10-15-Extended-due-date-for-individual-income-tax-returns-for-those-with-extensions.ics
  
10/25/2026 12:00 AM10/25/2026 11:59 PMYes
  
11/22/2026 12:00 AM11/22/2026 11:59 PMYes
  
11/26/2026 12:00 AM11/26/2026 11:59 PMYes
  
12/20/2026 12:00 AM12/20/2026 11:59 PMYes
  
12/24/2026 12:00 AM12/24/2026 11:59 PMYes
  
12/25/2026 12:00 AM12/25/2026 11:59 PMYes
  
12/31/2026 12:00 AM12/31/2026 11:59 PMYes
  
1/1/2027 12:00 AM1/1/2027 11:59 PMYes