Illinois Income Tax Form - Web individual income tax return. Web filing online is quick and easy! This form is used by illinois residents who file an individual income tax. Web illinois income tax forms & instructions. Use this form for payments that are due on april 15, 2024, june 17, 2024, september 16, 2024, and january. Click here to download the pdf form. 2024 estimated income tax payments for individuals.
This form is used by illinois residents who file an individual income tax. Web individual income tax return. Use this form for payments that are due on april 15, 2024, june 17, 2024, september 16, 2024, and january. Click here to download the pdf form. Web filing online is quick and easy! Web illinois income tax forms & instructions. 2024 estimated income tax payments for individuals.