Skip to main content

Scam Alert: Fake Texts and Websites Impersonating IDOR

Be alert for fraudulent messages or websites attempting to steal your banking information, login credentials, or credit card details. The Illinois Department of Revenue (IDOR) will never request personal or financial information via text message. To confirm official communications or contact details, always visit https://tax.illinois.gov.

Employment Sign Up for Updates

2007 Corporate Income Tax Forms

Name Description
 
IL-1120 Instr. Corporation Income and Replacement Tax Return
IL-1120-X Instr. Illinois Amended Corporation Income and Replacement Tax Return
Sch. J   Foreign Dividends
Sch. M   Other Additions and Subtractions (for businesses)
Sch. NB   Nonbusiness Income
Sch. NLD   Illinois Net Loss Deduction
Sch. UB Instr. Combined Apportionment for Unitary Business Group
Sch. UB/NLD   Unitary Net Loss Deduction
Sch. INS   Tax for Foreign Insurers
Sch. UB/INS   Tax for a Unitary Business Group with Foreign Insurer Members
IL-477   Replacement Tax Investment Credits
Sch. 1299-B   Enterprise Zone Foreign Trade Zone/Sub-Zone Subtractions (for Corporations & Fiduciaries)
Sch. 1299-D Instr.  Income Tax Credits (for Corporations & Fiduciaries)
Sch. 1299-S   Enterprise Zones, Foreign Trade Zones, and Sub-Zones
IL-2220 Instr. Computation of Penalties for Businesses
Sch. 4255   Recapture of Investment Tax Credits
IL-4562   Special Depreciation
Sch. 80/20   Related Party Expenses