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2025 Individual Income Tax Forms
| Form | Instructions | Description |
|---|---|---|
| IL-1040 |
HTML | PDF | Individual Income Tax Return |
| IL-1040-X | Amended Individual Income Tax Return |
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| IL-1040-ES | 2026 Estimated Income Tax Payments for Individuals Use this form for payments that are due on April 15, 2026, June 15, 2026, September 15, 2026, and January 15, 2027. |
|
| 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 |
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| IL-1310 | Statement of Person Claiming Refund Due a Deceased Taxpayer |
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| IL-2210 | HTML | PDF | Computation of Penalties for Individuals |
| IL-4562 | HTML | PDF | Special Depreciation |
| IL-4644 | HTML | PDF | Gains from Sales of Employer's Securities Received from a Qualified Employee Benefit Plan |
| IL-4852 | Substitute for Unobtainable Form W-2 |
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| Schedule 1299-C | HTML | PDF | Income Tax Subtractions & Credits (for individuals) |
| Schedule 1299-I | Income Tax Credits Information and Worksheets | |
| Schedule 4255 | HTML | PDF | Recapture of Investment Tax Credits |
| Schedule CR | HTML | PDF | Credit for Tax Paid to Other States |
| Schedule F | HTML | PDF | Gains from Sales or Exchanges of Property Acquired Before August 1, 1969 |
| Schedule G | HTML | PDF | Voluntary Charitable Donations |
| Schedule ICR | HTML | PDF | Illinois Credits |
| Schedule IL-E/EITC | HTML | PDF | Illinois Exemption and Earned Income Tax Credit |
| Schedule M | HTML | PDF | Other Additions and Subtractions for Individuals Note: For determining your 529 additions and subtractions, see Bright Start 529 Illinois Taxpayer Guide or Bright Directions 529 Tax Center. |
| Schedule NR | HTML | PDF | Nonresident and Part-Year Resident Computation of Illinois Tax |
| Schedule IL-WIT |
HTML | PDF | Illinois Income Tax Withheld |