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2022 Small Business Corporation Replacement Tax Forms

Name Description

Small Business Corporation Replacement Tax Return (includes Schedule B)
2022-IL-1120-ST-V   Payment Voucher for 2022 Small Business Corporation Replacement Tax (Use this voucher and Appendix A of Form IL-1120-ST Instructions to make a 2022 return or extension payment.)

​Payment Voucher for 2023 Small Business Corporation Replacement Tax (Use this voucher and Appendix B of Form IL-1120-ST Instructions to make estimated payments or voluntary prepayment(s) of 2023 tax due.) 
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
IL-477 Instructions Replacement Tax Investment Credits
IL-1000-E   Certificate of Exemption for Pass-through Withholding Payments
Instructions ​Computation of Penalties for Businesses



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 and Schedule K-1-P(3)

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
Schedule 4255


Recapture of Investment Tax Credits
Subgroup Schedule (UB) Instructions Subgroup Schedule