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.


2010 Composite Income Tax
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Name Type Description Revised
    
File Electronically for FREE!  Use the TSC-BUS
CT-1065/CT-1120 SI Booklet 2010 Connecticut Composite Income Tax Return Instructions
01/2011
CT-1065/CT-1120SI
Return
 2010 Connecticut Composite Income Tax Return
12/2010
Supplemental Attachment
Form
 2010 CT-1065/CT-1120SI Supplemental Attachment
12/2010
Form
 2010 Transmittal of Schedule CT-K-1, Member's Share of Certain Connecticut Items
12/2010
Schedule CT K-1
ALERT
Form
 2010 Member's Share of Certain Connecticut Items
1/14/2011