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2023 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 Exempt Organization Income and Replacement Tax To make a return or extension payment, use this voucher and Appendix B of Form IL-990-T Instructions. To make an estimated payment, use this voucher and Appendix A of Form IL-990-T Instructions. Important: Ensure the proper month and year of the filing period you wish to make a payment for is entered on the "Tax year ending" lines of the voucher.
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 Important: Ensure the proper month and year of the filing period you wish to make a payment for is entered on the "Tax year ending" lines of the voucher.
IL-477	Instructions	Replacement Tax Investment Credits
Schedule 1299-D	Instructions 07/10/24 – Updated to include new Quantum Computing Campuses tax credit.	Income Tax Credits (for corporations and fiduciaries)
Schedule 1299-I 07/10/24 – Updated to include new Quantum Computing Campuses tax credit and to extend expiration dates for credits affected by recently passed legislation.		Income Tax Credits Information and Worksheets
Schedule 4255	Instructions	Recapture of Investment Tax Credits