Mar 1, 2024 · The Cook County Treasurer's Office website was designed to meet the Illinois Information Technology Accessibility Act and the Americans with Disabilities Act.

Apr 15, 2025 · Review information about due dates and when to file tax returns. Find out how to request an extension of time to file.

We grant an automatic six-month extension of time to file your return. If you receive a federal extension of more than six months, you are automatically allowed that extension for Illinois. These extensions …

Nov 24, 2025 · Learn more about IRS tax deadlines, possible extensions, and other key dates you need to know as a taxpayer.

Apr 3, 2025 · When were taxes due if I filed an extension in 2024? The deadline to file federal income tax returns this year, to report income earned in 2024, is April 15, 2025. Taxpayers who apply for an...

Publication 131-D, Withholding Income Tax Payment and Return Due Dates, identifies all Illinois withholding payment and Form IL-941, Illinois Withholding Income Tax Return, due dates for the …

If you're a calendar year filer and your tax year ends on December 31, the due date for filing your federal individual income tax return is generally April 15 of each year. For the 2025 tax return, the due date …

4 days ago · There are key deadlines and dates that you should know about. Use this calendar to help you avoid missing important deadlines, view important due dates and actions for key filing deadlines …

Mar 1, 2024 · The due date for Tax Year 2024 Second Installment was Monday, December 15, 2025. The due date for Tax Year 2024 First Installment was Tuesday, March 4, 2025. The due date for Tax …

Most of the due dates discussed in this publication are also included in the online IRS Tax Calendar, available at IRS.gov/TaxCalendar. The online IRS Tax Calendar is also available in Spanish and …