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

2021 Exempt Organization Income and Replacement Tax Forms

Name
 Description
IL-990-T 
 Instructions 
 Exempt Organization Income and Replacement Tax Return
IL-990-T-V   Payment Voucher for 2021 Exempt Organization Income and Replacement Tax 
IL-990-T-X​
 Instructions​ ​Amended Exempt Organization Income and Replacement Tax Return
IL-990-T-X-V   Payment Voucher for Amended Exempt Organization Income and Replacement Tax
IL-477 Instructions Replacement Tax Investment Credits
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