Connecticut State Department of Revenue Services

Walk-in services at all DRS branch office locations remain suspended. Email DRS at drs@po.state.ct.us. Email the Priority One Taxpayer Assistance Program: DRSPriorityOne_CollectionsAssist@po.state.ct.us. Please check our Frequently Asked Questions page.

Unrelated Business Tax

Name  Description  Revised Date  Due Date 
CT-990T 2018 Connecticut Unrelated Business Income Tax Return  12/2018  
CT-990T - INST. Unrelated Business Income Tax Return (Instructions)  12/2018  
CT-990T EXT Application for Extension of Time to File Unrelated Business Income Tax Return  12/2018  
CT-990T ES (ESA,ESB,ESC,ESD)  2019 Estimated Unrelated Business Income Tax Payment Coupons  12/2018  
CT-990T ES (ESA,ESB,ESC,ESD) 2018 Estimated Unrelated Business Income Tax Payment Coupons  12/2017