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.

2015 Composite Income Tax

Name

Description

Revised
Date

Due
Date

CT-1065/CT-1120 SI

2015 Connecticut Composite Income Tax Return - BOOKLET

01/2016

CT-1065/CT-1120SI

2015 Connecticut Composite Income Tax Return

01/2016

Supplemental Attachment

2015 CT-1065/CT-1120SI Supplemental Attachment

01/2016

CT-K-1T

2015 Transmittal of Schedule CT-K-1, Member's Share of Certain Connecticut Items

12/2015

Schedule CT K-1

2015 Member's Share of Certain Connecticut Items

12/2015