| Name | Description |
|---|
|
IL-1120 |
Instructions | Corporation Income and Replacement Tax Return
|
|---|
|
2021-IL-1120-V | | Payment Voucher for 2021 Corporation Income and Replacement Tax (Use this voucher and Appendix A of Form IL-1120 Instructions to make a 2021
return or extension payment)
|
|---|
| 2022-IL-1120-V | | Payment Voucher for 2022 Corporation Income and Replacement Tax (Use this voucher and Appendix B of Form IL-1120 Instructions to make 2022 estimated payments)
|
|---|
IL-1120-X
| Instructions
| Amended Corporation Income and Replacement Tax Return
|
|---|
|
IL-1120-X-V | | Payment Voucher for Amended Corporation Income and Replacement Tax |
|---|
|
IL-477 |
Instructions | Replacement Tax Investment Credits |
|---|
|
IL-2220 |
Instructions | Computation of Penalties for Businesses
|
|---|
IL-4562
|
Instructions | Special Depreciation |
|---|
|
Schedule INL |
Instructions | Illinois Net Loss Adjustments for Cooperatives and REMIC Owners |
|---|
|
Schedule INS |
Instructions | Tax for Foreign Insurers |
|---|
|
Schedule J |
Instructions | Foreign Dividends
|
|---|
|
Schedule M |
Instructions | Other Additions and Subtractions (for businesses)
|
|---|
|
Schedule NB |
Instructions | Nonbusiness Income |
|---|
|
Schedule UB |
Instructions | Combined Apportionment for Unitary Business Group |
|---|
|
Schedule UB/INS |
Instructions | Tax for a Unitary Business Group with Foreign Insurer Members |
|---|
|
Schedule 80/20 |
Instructions | Related-Party Expenses |
|---|
|
Schedule 1299-B |
Instructions | River Edge Redevelopment Zone or Foreign Trade Zone (or sub-zone) Subtractions (for corporations and fiduciaries) |
|---|
|
Schedule 1299-D |
Instructions | Income Tax Credits (for corporations and fiduciaries)
|
|---|
Schedule 1299-I
| | Income Tax Credits Information and Worksheets
|
|---|
|
Schedule 4255 |
Instructions | Recapture of Investment Tax Credits |
|---|
|
Subgroup Schedule (UB) |
Instructions
| Subgroup Schedule
|
|---|