IRS announces tax relief for taxpayers impacted by severe storms, tornadoes and flooding in the State of Wisconsin, various deadlines postponed to Nov. 2, 2026WI-2026-02, July 13, 2026IRS announces tax relief for taxpayers impacted by severe storms, straight-line winds, flooding, and mudslides in Wisconsin; various deadlines postponed to Feb 2, 2026WI-2025-04, Sept. 17, 2025How to contact your local IRS office