Download Instructions for Form IL1040X Amended Individual Tax
1040 Illinois Tax Form. This form is used by illinois residents who file an individual income tax. 2024 estimated income tax payments for individuals.
This form is used by illinois residents who file an individual income tax. Use this form for payments that are due on april 15, 2024,. We last updated the individual. 2024 estimated income tax payments for individuals.
2024 estimated income tax payments for individuals. Use this form for payments that are due on april 15, 2024,. We last updated the individual. This form is used by illinois residents who file an individual income tax. 2024 estimated income tax payments for individuals.