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• When Is My Individual Income Tax Return Due?

• Due Date/Extension To File Income Tax Return (2021 IL-1040)

• Illinois Filing And Tax Deadline Dates For 2021 Tax Returns

• Illinois 2021 Tax Deadline Extended To Match IRS Federal Extension

• 2022 Illinois Tax Filing Season Begins Monday - KHQA

• For Illinois And Tennessee Tornado Victims, IRS Extends 2021 Tax ...

• State Tax Filing Deadline Pushed Back For Some Illinoisans - Fox Illinois

• Illinois Department Of Revenue

• Illinois State Tax Updates - Withum

• 2021 Real Estate Tax Calendar (payable In 2022) - Lake County, IL

• Illinoisans Can Submit State And Federal Tax Returns Starting January 24

• Estate Tax Downloadable Forms - Illinois Attorney General

• Treasurer Important Dates - Knox County,Illinois

• 2022 Illinois Tax Calendar - Claremont Management