NOTICE: All DRS offices will be closed on Monday, January 21st, in observance of Martin Luther King Jr. Day. We will reopen on Tuesday, January 22nd.

Search Department of Revenue Services Filtered Topic Search
Corporation Tax Returns

Name Type Description Revised

File Electronically for FREE! Use the TSC-BUS
BUSINESS TAX RETURN
Booklet 2014 Connecticut Corporation Business Tax Instructions 1/2015
CT-1120 Form 2014 Corporation Business Tax Return 12/2014
CT-1120A
Form
Corporation Business Tax Return Apportionment Computation (with instructions)
2012
CT-1120 ATT Form & Inst. Corporation Business Tax Return Attachment Schedules H, I, and J (with instructions)
12/2014
CT-1120AB Form Add Back and Exceptions to Add Back of Interest and Intangible Expenses
12/2013
Form & Inst. Business Tax Credit Summary
12/2014
Form & Inst. Computation of Interest Due on Underpayment of Estimated Tax (with instructions)
12/2014
CT-1120X Form Amended Corporation Business Tax Return
12/2014
CT-1120X Instructions Amended Corporation Business Tax Return Instructions
12/2014
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 12/2013
Form Corporation Business Tax Return Apportionment Computation - Broadcasters and Production Entities 12/2013
Form Corporation Business Tax Change of Address 01/2014
CT-1120 A-CCA Form Corporation Business Tax Return Apportionment Computation of Income From Credit Card Activities
12/2013
CT-1120 A-FS Form Corporation Business Tax Return Apportionment Computation of Income from Financial Service Companies Activities 12/2014
CT-1120 A-IRIC Form Corporation Business Tax Return Apportionment Computation of Income from Services to Regulated Investment Companies 2012
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 12/2014
CT-1120 A-SBC Form Corporation Business Tax Return Apportionment Computation - Securities Brokerage Services 2012
CT-1120 CC Form Authorization and Consent to be Included in a Combined Corporation Business Tax Return 12/2003
Form Revocation of Election and Consent to File Combined Corporation Business Tax 12/2014
CT-1120 CR Form Combined Corporation Business Tax Return
12/2014
CT-1120 CR Instructions Combined Corporation Business Tax Return Instructions
1/2015
CT-1120 PIC Form Information Return for Passive Investment Companies 01/2014
CT-1120 U Form Unitary Corporation Business Tax Return
12/2014
CT-1120 U Instructions Unitary Corporation Business Tax Return Instructions
1/2015

CREDIT FORMS

CT-1120 DA Form Digital Animation Tax Credit
12/2014
Form Donation of Land Credit
12/2014
CT-1120 EDPC Form Electronic Data Processing Equipment Property Tax Credit
12/2014
CT-1120 FCIC Form Fixed Capital Investment Credit
12/2014
CT-1120FP Form Film Production Tax Credit
12/2014
CT-1120 FPI Form Film Production Infrastructure Tax Credit
12/2014
CT-1120 GB Green Building Tax Credit
12/2014
CT-1120 HCIC Form Human Capital Investment Credit
12/2014
CT-1120 HH Form Historic Homes Rehabilitation Tax Credit
12/2014
CT-1120 HP Form Historic Preservation Tax Credit
12/2014
Form Housing Program Contribution Credit
12/2014
CT-1120 HR Historic Rehabilitation Tax Credit
12/2014
Form Historic Structures Rehabilitation Tax Credit
12/2014
CT-IRF Form Insurance Reinvestment Fund Credit
12/2014
CT-1120 MEC Form Machinery and Equipment Expenditure Credit
12/2014
CT-1120 NJC Form New Jobs Creation Credit
12/2014
CT-1120 RC Form Research and Experimental Expenditures Credit
1/2015
CT-1120 RDC Form Research and Development Credit
12/2014
CT-1120 SBA Form Small Business Guaranty Fee Tax Credit
12/2014
CT-1120SF Form Service Facility Credit
12/2014
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
12/2014
CT-UISR Form Urban and Industrial Site Reinvestment Credit
12/2014
Form Application for Exchange of Research and Development or Research and Experimental Expenditures Tax Credits by a Qualified Small Business
1/2015
CT-1120 JET Form 2014 Job Expansion Tax Credit
12/2014
Form 2015 Connecticut Neighborhood Assistance Act (NAA) Program Proposal 02/2015
Form 2015 Connecticut Neighborhood Assistance Act Business Application
03/2015