CT.gov Home drs-beta Current: unrelated returns Trending Now For Businesses For Individuals Practitioners Forms Publications Research Library Search Department of Revenue Services Search the current Agency with a Keyword Filtered Topic Search unrelated returns Unrelated Business Tax Business Returns Name Description RevisedDate DueDate CT-990T 2015 Connecticut Unrelated Business Tax Return 12/2015 CT-990T Connecticut Unrelated Business Tax Return (Instructions) 12/2015