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About IDOR
| Name | Description | |
|---|---|---|
| IL-990-T | Instr. | Exempt Organization Income and Replacement Tax Return (R-12/11) |
| IL-990-T-X | Instr. |
Amended Exempt Organization Income and Replacement Tax Return (R-12/11) |
| IL-477 | Replacement Tax Investment Credits (R-12/11) | |
| IL-505-B | Automatic Extension Payment (R-12/11) | |
| Sch. 1299-D | Instr. | Income Tax Credits (for corporations and fiduciaries) (R-12/11) |
| Sch. 1299-S | Enterprise Zones, Foreign Trade Zones, and Sub-Zones (R-12/11) | |
| Sch. 4255 | Recapture of Investment Tax Credits (R-12/11) | |