Connecticut State Department of Revenue Services

Holiday Closure: The Department of Revenue Services will be closed on Wednesday, December 25th, a state holiday.

Upcoming CT DRS webinar: Select to register for the upcoming Withholding Forms W-2 and 1099 Annual Filing Webinar on Wednesday, January 15, 2025, at 10:00 a.m.

Prior Year's Unrelated Business Income Tax Forms

Form Name
 Description
 Revised Date
CT-990T
 2024 Connecticut Unrelated Business Income Tax Return 12/2024
CT-990T - Inst.
 Unrelated Business Income Tax Return (Instructions) 12/2024
CT-990T EXT
 Application for Extension of Time to File Unrelated Business Income Tax Return 12/2024
CT-990T ES(ESA,ESB,ESC,ESD)
 2025 Estimated Unrelated Business Income Tax Payment Coupons
 12/2024

CT-990T ES(ESA,ESB,ESC,ESD)

 2024 Estimated Unrelated Business Income Tax Payment Coupons
 12/2023