Connecticut State Department of Revenue Services

Scam Alert: The DRS is alerting taxpayers to a new scam where scammers are impersonating DRS by sending fraudulent text messages. For more information, see TSSB 2025-6.

Unrelated Business Tax

Form Name
 Description
 Revised Date
CT-990T
 2021 Connecticut Unrelated Business Income Tax Return 12/2021
CT-990T - Inst.
 Unrelated Business Income Tax Return (Instructions) 12/2021
CT-990T EXT
 Application for Extension of Time to File Unrelated Business Income Tax Return 12/2021
CT-990T ES(ESA,ESB,ESC,ESD)
 2022 Estimated Unrelated Business Income Tax Payment Coupons
 12/2021
CT-990T ES(ESA,ESB,ESC,ESD) 2021 Estimated Unrelated Business Income Tax Payment Coupons
 12/2020