IRS provides tax relief for taxpayers affected by storms and flooding in parts of Wisconsin
Various deadlines postponed to February 2, 2026
The IRS today announced tax relief for individuals and businesses in parts of Wisconsin affected by severe storms, straight-line winds, flooding, and mudslides that began on August 9, 2025. These taxpayers now have until February 2, 2026, to file various federal individual and business tax returns and make tax payments.
According to today’s IRS release—WI-2025-04—individuals and households residing or having a business in Milwaukee, Washington, and Waukesha counties qualify for tax relief, following the disaster declaration issued by the Federal Emergency Management Agency (FEMA).
The relief extends the deadline for filing returns and paying taxes that were originally due during this period to February 2, 2026. The extended deadline applies to:
- Any individual, business, or tax-exempt organization that has a valid extension to file their 2024 return due to run out on October 15, 2025
- Quarterly estimated income tax payments normally due on September 15, 2025, and January 15, 2026
- Quarterly payroll and excise tax returns normally due on October 31, 2025, and January 31, 2026
- Calendar-year partnerships and S corporations whose 2024 extensions run out on September 15, 2025
- Calendar-year corporations whose 2024 extensions run out on October 15, 2025
- Calendar-year tax exempt organizations whose extensions run out on November 17, 2025
Filing extensions do not extend the time to pay taxes. Taxpayers receiving late filing or payment penalty notices may contact the IRS to request penalty abatement.