WEBINAR: DRS will be holding a webinar on Wednesday, July 30, 2025, at 10:00 a.m.  This session will provide an overview of the sales and use tax requirements pertaining to car wash and motor vehicle repair services. Select here to register.

Unrelated Business Tax


Name Description Revised Date Due Date
CT-990T 2020 Connecticut Unrelated Business Income Tax Return 12/2020
CT-990T - INST. Unrelated Business Income Tax Return (Instructions) 12/2020
CT-990T EXT Application for Extension of Time to File Unrelated Business Income Tax Return 12/2020
CT-990T ES(ESA,ESB,ESC,ESD) 2020 Estimated Unrelated Business Income Tax Payment Coupons 12/2019
CT-990T ES(ESA,ESB,ESC,ESD) 2021 Estimated Unrelated Business Income Tax Payment Coupons 12/2020