Illinois Tax Return Form - Web filing online is quick and easy! Web individual income tax return. Use mytax illinois to electronically file your original individual. 2024 estimated income tax payments for individuals. This bulletin summarizes changes for 2023 illinois income tax forms and schedules. Web amended individual income tax return. Click here to download the pdf form. Use this form for payments that are due on april 15, 2024,.
This bulletin summarizes changes for 2023 illinois income tax forms and schedules. Click here to download the pdf form. Web individual income tax return. Web filing online is quick and easy! 2024 estimated income tax payments for individuals. Web amended individual income tax return. Use this form for payments that are due on april 15, 2024,. Use mytax illinois to electronically file your original individual.