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2024 Small Business Corporation Replacement Tax Forms
| Name | Description | |
|---|---|---|
| IL-1120-ST |
Instructions |
Small Business Corporation Replacement Tax Return (includes Schedule B) |
| IL-1120-ST-V | Payment Voucher for Small Business Corporation Replacement Tax To make a return or extension payment, use this voucher and Appendix A of Form IL-1120-ST Instructions. Important: Ensure the proper month and year of the filing period you wish to make a payment for is entered on the "Tax year ending" lines of the voucher. |
|
| IL-1120-ST-X |
Instructions | Amended Small Business Corporation Replacement Tax Return (includes Schedule B) |
| IL-1120-ST-X-V | Payment Voucher for Amended Small Business Corporation Replacement Tax Important: Ensure the proper month and year of the filing period you wish to make a payment for is entered on the "Tax year ending" lines of the voucher. |
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| IL-477 | Instructions | Replacement Tax Investment Credits |
| IL-1000-E | Certificate of Exemption for Pass-through Withholding Payments | |
| IL-2220 | Instructions | Computation of Penalties for Businesses |
| IL-4562 | Instructions | Special Depreciation |
| Schedule F | Instructions | Gains from Sales or Exchanges of Property Acquired Before August 1, 1969 |
| Schedule K-1-P |
Partner's or Shareholder's Share of Income, Deductions, Credits, and Recapture | |
| Schedule K-1-P (1) | Instructions for Partnerships and S Corporations Completing Schedule K-1-P, Schedule K-1-P(3), and Schedule K-1-P(4) |
|
| Schedule K-1-P (2) | Partner's and Shareholder's Instructions | |
| Schedule K-1-P (3) | Pass-through Withholding Calculation for Nonresident Members | |
| Schedule M | Instructions | Other Additions and Subtractions (for businesses) |
| Schedule NB | Instructions | Nonbusiness Income |
| Schedule NLD | Instructions | Illinois Net loss Deduction |
| Schedule UB |
Instructions | Combined Apportionment for Unitary Business Group |
| Schedule 80/20 | Instructions | Related-Party Expenses |
| Schedule 1299-A | Tax Subtractions and Credits (for partnerships and S corporations) | |
| 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 | Recapture of Investment Tax Credits | |
| Subgroup Schedule (UB) | Instructions | Subgroup Schedule |