- CT filing, payment deadlines for individual income tax returns extended to May 17th. Read more.

- Please check our 2021 CT Tax Filing Season FAQ's

- Learn more about myconneCT

- Walk-in services at all DRS branch office locations remain suspended.

Unrelated Business Tax


Name Description Revised Date Due Date
CT-990T 2019 Connecticut Unrelated Business Income Tax Return 12/2019
CT-990T - INST. Unrelated Business Income Tax Return(Instructions) 12/2019
CT-990T EXT Application for Extension of Time to File Unrelated Business Income Tax Return 12/2019
CT-990T ES(ESA,ESB,ESC,ESD) 2020 Estimated Unrelated Business Income Tax Payment Coupons 12/2019
CT-990T ES(ESA,ESB,ESC,ESD) 2019 Estimated Unrelated Business Income Tax Payment Coupons 12/2018