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.

2011 Corporation Tax Returns

All forms and some DRS publications are in Adobe Acrobat format.  Before viewing or printing these documents you will need Adobe Acrobat Reader 7.0 or higher  For additional assistance or if you are have trouble downloading a form, visit our Adobe Information page.
Name Type Description Revised
    
File Electronically for FREE!  Use the TSC-BUS
BUSINESS TAX RETURN
Instruction Booklet 2011 Connecticut Corporation Business Tax Instructions 01/2012
CT-1120 Form 2011 Corporation Business Tax Return 01/2012
CT-1120A
Form
2011 Corporation Business Tax Return Apportionment Computation (with instructions)
01/2012
CT-1120 ATT Form & Inst. Corporation Business Tax Return Attachment Schedules H, I, and J (with instructions)
01/2012
CT-1120AB Form Add Back and Exceptions to Add Back of Interest and Intangible Expenses
01/2012
Form & Inst. Business Tax Credit Summary
01/2012
Form & Inst. Computation of Interest Due on Underpayment of Estimated Tax (with instructions)
01/2012
CT-1120X Form Amended Corporation Business Tax Return
01/2012
CT-1120X Instructions Amended Corporation Business Tax Return Instructions
01/2012
CT-NAICS Form NAICS Codes for Principal Business Activity for Connecticut Tax Purposes 05/2004

OTHER CORPORATION TAX FORMS

AU-796 Form Reinstatement Guarantee Declaration for Non-stock Corporations 03/2008
AU-797 Form Dissolution Guarantee Declaration for Stock Corporations 04/2008
AU-798 Form Dissolution Guarantee Declaration for Non-stock Corporations 03/2008
AU-800a Form Withdrawal Guarantee Declaration for Corporations 03/2008
AU-801 Form Reinstatement Guarantee Declaration for Stock Corporations 03/2008
CT-1120A-A Form Corporation Business Tax Return Apportionment Computation-Air Carriers 12/2008
CT-1120 A-BMC Form Corporation Business Tax Return Apportionment Computation - Motor Bus and Motor Carrier Companies
01/2012
Form Corporation Business Tax Return Apportionment Computation - Broadcasters and Production Entities 12/2008
Form Corporation Business Tax Change of Address 01/2018
CT-1120 A-CCA Form Corporation Business Tax Return Apportionment Computation of Income From Credit Card Activities 12/2006
CT-1120 A-FS Form Corporation Business Tax Return Apportionment Computation of Income from Financial Service Companies Activities 1/2011
CT-1120 A-IRIC Form Corporation Business Tax Return Apportionment Computation of Income from Services to Regulated Investment Companies 12/2008
Form Corporation Business Tax Return Apportionment of Limited Partnership Interests 01/2011
CT-1120 A-MFG Form Corporation Business Tax Return Apportionment Computation - Manufacturing Companies 12/2008
CT-1120 A-SBC Form Corporation Business Tax Return Apportionment Computation - Securities Brokerage Services 12/2008
CT-1120 CC Form Authorization and Consent to be Included in a Combined Corporation Business Tax Return 03/2004
Form Revocation of Election and Consent to File Combined Corporation Business Tax 03/2004
CT-1120 CR Form Combined Corporation Business Tax Return
01/2012
CT-1120 CR Instructions Combined Corporation Business Tax Return Instructions
01/2012
CT-1120 PIC Form Information Return for Passive Investment Companies 12/2010
CT-1120 Q Form Connecticut Corporate Unitary Questionnaire 12/2005
CT-1120 U Form Unitary Corporation Business Tax Return
01/2012
CT-1120 U Instructions Unitary Corporation Business Tax Return Instructions
01/2012

CREDIT FORMS

CT-CDC Form Computer Donation Credit Application
12/2010
CT-1120 DA Form Digital Animation Tax Credit
01/2012
Form Donation of Land Credit
01/2012
Form Displaced Worker Credit 01/2012
CT-1120 EDPC Form Electronic Data Processing Equipment Property Tax Credit 01/2012
CT-1120 FCIC Form Fixed Capital Investment Credit 01/2012
CT-1120FP Form Film Production Tax Credit 01/2012
CT-1120 FPI Form Film Production Infrastructure Tax Credit 01/2012
CT-1120 GC Form Tax Credit for Research and Development Grants to Institutions of Higher Education
01/2012
CT-1120 HCIC Form Human Capital Investment Credit
01/2012
CT-1120 HH Form Historic Homes Rehabilitation Tax Credit
01/2012
CT-1120 HIC Form Hiring Incentive Tax Credit
01/2012
CT-1120 HP Form Historic Preservation Tax Credit
01/2012
Form Housing Program Contribution Credit
01/2012
Form Historic Structures Rehabilitation Tax Credit
01/2012
CT-IRF Form Insurance Reinvestment Fund Credit
01/2012
CT-1120 MEC Form Machinery and Equipment Expenditure Credit
01/2012
CT-1120 NJC Form New Jobs Creation Credit 01/2012
CT-1120 RC Form Research and Experimental Expenditures Credit 01/2012
ALERT
Form Research and Development Credit 04/2012
CT-1120 SBA Form Small Business Guaranty Fee Tax Credit 01/2012
CT-1120 SBJ Form Small Business Job Creation Tax Credit 01/2012
CT-1120SF
Form
Service Facility Credit
01/2012
ALERT
Form 2011 Tax Credit Cap Expansion
02/2012
Form Manufacturing Facility Credit for Facilities Located in a Targeted Investment Community/Enterprise Zone  NOTE:  This form replaces Forms CT-1120CRMC, CT-1120CRMCEZ, CT-1120MC and CT-1120MCEZ
01/2012
CT-1120 VRJ Form Vocational Rehabilitation Job Creation Tax Credit
01/2012
CT-UISR Form Urban and Industrial Site Reinvestment Credit 01/2012
Form Application for Exchange of Research and Development or Research and Experimental Expenditures Tax Credits by a Qualified Small Business
01/2012
Form 2012 Connecticut Neighborhood Assistance Act (NAA) Program Proposal - (FILLABLE) 03/2012
NAA-02
Form 2012 Connecticut Neighborhood Assistance Act Business Application - (FILLABLE) 06/2012