Agencies
Services
2024 Individual Income Tax Forms
| Form | Instructions | Description |
|---|---|---|
| IL-1040 |
Instructions (html) English (pdf) Español (pdf) |
Individual Income Tax Return 02/2025 - IL-1040 Instructions Addendum regarding Line 39 Bright Start direct deposit instructions |
| IL-1040-X | Instructions (html) English (pdf) Español (pdf) |
Amended Individual Income Tax Return |
| IL-1040-ES | 2025 Estimated Income Tax Payments for Individuals Use this form for payments that are due on April 15, 2025, June 16, 2025, September 15, 2025, and January 15, 2026. |
|
| IL-1040-V | Payment Voucher for Individual Income Tax |
|
| IL-1040-X-V | Payment Voucher for Amended Individual Income Tax |
|
| IL-505-I | Automatic Extension Payment for Individuals Filing Form IL-1040 |
|
| IL-1310 | Statement of Person Claiming Refund Due a Deceased Taxpayer |
|
| IL-2210 | Instructions (html) English (pdf) Español (pdf) |
Computation of Penalties for Individuals |
| IL-4562 | Instructions (html) English (pdf) |
Special Depreciation Update 07/31/2025 - The instructions have been updated to correspond with Public Law 119-21 that made significant changes to bonus depreciation, including restoring 100% bonus depreciation for property acquired and placed in service after January 19, 2025. |
| IL-4644 | Instructions (html) English (pdf) |
Gains from Sales of Employer's Securities Received from a Qualified Employee Benefit Plan |
| IL-4852 | Substitute for Unobtainable Form W-2 |
|
| Schedule 1299-C | Instructions (html) English (pdf) Español (pdf) |
Income Tax Subtractions & Credits (for individuals) |
| Schedule 1299-I | Income Tax Credits Information and Worksheets Updated 03/25/2025 - Taxpayers claiming the REV Illinois Investment Credit or MICRO Investment Credit are now required to attach a copy of their worksheet rather than a DCEO certificate. |
|
| Schedule 4255 | Instructions (html) English (pdf) |
Recapture of Investment Tax Credits |
| Schedule CR | Instructions (html) English (pdf) Español (pdf) |
Credit for Tax Paid to Other States |
| Schedule F | Instructions (html) English (pdf) Español (pdf) |
Gains from Sales or Exchanges of Property Acquired Before August 1, 1969 |
| Schedule G | Instructions (html) English (pdf) Español (pdf) |
Voluntary Charitable Donations |
| Schedule ICR | Instructions (html) English (pdf) Español (pdf) |
Illinois Credits |
| Schedule IL-E/EITC | Instructions (html) English (pdf) Español (pdf) |
Illinois Exemption and Earned Income Tax Credit |
| Schedule M | Instructions (html) English (pdf) Español (pdf) |
Other Additions and Subtractions for Individuals Note: For Bright Start additions and subtractions, go to Bright Start and select the question ‘What do I need to know before I file my 2024 Illinois State Income Tax Form?" |
| Schedule NR | Instructions (html) English (pdf) Español (pdf) |
Nonresident and Part-Year Resident Computation of Illinois Tax |
| Schedule IL-WIT |
Instructions (html) English (pdf) Español (pdf) |
Illinois Income Tax Withheld |