| Form AU-796 | Reinstatement Guarantee Declaration for Non-stock Corporations | 03/31/2008 |
| Form AU-797 | Dissolution Guarantee Declaration for Stock Corporations | 04/01/2008 |
| Form AU-798 | Dissolution Guarantee Declaration for Non-stock Corporations | 03/31/2008 |
| Form AU-800a | Withdrawal Guarantee Declaration for Corporations | 03/31/2008 |
| Form AU-801 | Reinstatement Guarantee Declaration for Stock Corporations | 03/31/2008 |
| Form C-106 | Interest Rates on Underpayments and Overpayments of Succession and Transfer Taxes and the Estate Tax | 05/28/2004 |
| Form C-3 UGE | State of Connecticut Domicile Declaration | 05/31/2011 |
| Form CT K-1 | 2014 Member's Share of Certain Connecticut Items | 12/22/2014 |
| Form CT-1040 EXT | 2014 Application for Extension of Time to File Income Tax Return for Individuals | 11/03/2014 |
| Form CT-1040 | 2014 Resident Income Tax Return | 11/07/2014 |
| Form CT-1040AW | Part-Year Resident Income Allocation Worksheet | 12/31/2014 |
| Form CT-1040BA | Nonresident Business Apportionment Schedule | 10/31/2014 |
| Form CT-1040CRC | Claim of Right Credit | 11/06/2014 |
| Form CT-1040EFW | Connecticut Electronic Withdrawal Payment Record | 10/14/2014 |
| Form CT-1040ES | 2015 Estimated Connecticut Income Tax Payment Coupon for Individuals | 11/13/2014 |
| Form CT-1040NR-PY | 2014 Nonresident/Part-Year Resident Tax Return | 11/19/2014 |
| Form CT-1040V | Connecticut Electronic Filing Payment Voucher | 11/05/2014 |
| Form CT-1040WH | Connecticut Income Tax Withholding Supplemental Schedule | 11/05/2014 |
| Form CT-1040X | Amended Income Tax Return for Individuals | 01/26/2015 |
| Form CT-1041 B | Fiduciary Adjustment Allocation | 01/29/2015 |
| Form CT-1041 C | Calculation of Connecticut Taxable Income for all Resident Estates and Full Year Resident Trusts | 01/29/2015 |
| Form CT-1041 FA | Fiduciary Allocation | 10/20/2014 |
| Form CT-1041 I | Connecticut Alternative Minimum Tax Computation of Trusts or Estates | 01/22/2015 |
| Form CT-1041 K-1 | Beneficiary's Share of Certain Connecticut Items | 10/10/2014 |
| Form CT-1041 | Income Tax Return for Trusts and Estates | 01/28/2015 |
| Form CT-1041ES | 2015 Estimated Connecticut Income Tax Payment Coupons for Trusts and Estates | 12/22/2014 |
| Form CT-1041EXT | Application for Extension of Time to File Connecticut Income Tax Return for Trusts and Estates | 11/03/2014 |
| Form CT-1041V | 2014 Connecticut Electronic Filing Payment Voucher | 12/16/2014 |
| Form CT-1041WH | 2014 Connecticut Income Tax Withholding | 12/15/2014 |
| Form CT-1065-CT-1120SI EXT | 2014 Application for Extension of Time to File Connecticut Composite Income Tax Return | 01/28/2015 |
| Form CT-1065-CT-1120SI | 2014 Connecticut Composite Income Tax Return | 01/14/2015 |
| Form CT-1065-SUPP | 2014 CT-1065/CT-1120SI Supplemental Attachment | 11/06/2013 |
| Form CT-1120 A-BMC | Corporation Business Tax Return Apportionment Computation - Motor Bus and Motor Carrier Companies | 10/31/2013 |
| Form CT-1120 A-BPE | Corporation Business Tax Return Apportionment Computation - Broadcasters and Production Entities | 10/31/2013 |
| Form CT-1120 A-CCA | Corporation Business Tax Return Apportionment Computation of Income From Credit Card Activities | 10/31/2013 |
| Form CT-1120 A-FS | Corporation Business Tax Return Apportionment Computation of Income from Financial Service Companies Activities | 10/21/2014 |
| Form CT-1120 A-IRIC | Corporation Business Tax Return Apportionment Computation of Income from Services to Regulated Investment Companies | 01/08/2013 |
| Form CT-1120 A-LP | Corporation Business Tax Return Apportionment of Limited Partnership Interests | 01/26/2011 |
| Form CT-1120 A-MFG | Corporation Business Tax Return Apportionment Computation - Manufacturing Companies | 10/21/2014 |
| Form CT-1120 A-SBC | Corporation Business Tax Return Apportionment Computation - Securities Brokerage Services | 01/08/2013 |
| Form CT-1120 ATT | Corporation Business Tax Return Attachment Schedules H, I, and J (with instructions) | 12/24/2014 |
| Form CT-1120 CC | Authorization and Consent to be Included in a Combined Corporation Business Tax Return | 03/23/2004 |
| Form CT-1120 CC-R | Revocation of Election and Consent to File Combined Corporation Business Tax | 10/21/2014 |
| Form CT-1120 CR | Combined Corporation Business Tax Return | 12/02/2014 |
| Form CT-1120 DA | Digital Animation Tax Credit | 10/15/2014 |
| Form CT-1120 DL | Donation of Land Credit | 10/16/2014 |
| Form CT-1120 EDPC | Electronic Data Processing Equipment Property Tax Credit | 10/15/2014 |
| Form CT-1120 ES | 2015 Estimated Corporation Business Tax Payment Coupons | 12/03/2014 |
| Form CT-1120 EXT | Application for Extension of Time to File Corporation Business Tax Return (with instructions) | 12/03/2014 |
| Form CT-1120 FCIC | Fixed Capital Investment Credit | 10/15/2014 |
| Form CT-1120 FPI | Film Production Infrastructure Tax Credit | 10/21/2014 |
| Form CT-1120 GB | Green Building Tax Credit | 10/16/2014 |
| Form CT-1120 HCIC | Human Capital Investment Credit | 10/15/2014 |
| Form CT-1120 HH | Historic Homes Rehabilitation Tax Credit | 10/16/2014 |
| Form CT-1120 HP | Historic Preservation Tax Credit | 10/16/2014 |
| Form CT-1120 HPC | Housing Program Contribution Credit | 10/15/2014 |
| Form CT-1120 HR | Historic Rehabilitation Tax Credit | 10/16/2014 |
| Form CT-1120 HS | Historic Structures Rehabilitation Tax Credit | 10/16/2014 |
| Form CT-1120 JET | 2014 Job Expansion Tax Credit | 10/15/2014 |
| Form CT-1120 MEC | Machinery and Equipment Expenditure Credit | 10/21/2014 |
| Form CT-1120 NJC | New Jobs Creation Credit | 10/15/2014 |
| Form CT-1120 PIC | Information Return for Passive Investment Companies | 01/02/2014 |
| Form CT-1120 RC | Research and Experimental Expenditures Credit | 01/13/2015 |
| Form CT-1120 RDC | Research and Development Credit | 10/16/2014 |
| Form CT-1120 SBA | Small Business Guaranty Fee Tax Credit | 10/15/2014 |
| Form CT-1120 SBJ | Small Business Job Creation Tax Credit | 10/15/2014 |
| Form CT-1120 TIC-EZ | 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 | 10/16/2014 |
| Form CT-1120 U | Unitary Corporation Business Tax Return | 12/03/2014 |
| Form CT-1120 XCH | Application for Exchange of Research and Development or Research and Experimental Expenditures Tax Credits by a Qualified Small Business | 01/13/2015 |
| Form CT-1120 | 2014 Corporation Business Tax Return | 12/17/2014 |
| Form CT-1120A | Corporation Business Tax Return Apportionment Computation (with instructions) | 01/08/2013 |
| Form CT-1120A-A | Corporation Business Tax Return Apportionment Computation-Air Carriers | 12/03/2008 |
| Form CT-1120AB | Add Back and Exceptions to Add Back of Interest and Intangible Expenses | 10/31/2013 |
| Form CT-1120FP | Film Production Tax Credit | 10/21/2014 |
| Form CT-1120I | Computation of Interest Due on Underpayment of Estimated Tax (with instructions) | 12/02/2014 |
| Form CT-1120K | Business Tax Credit Summary | 10/22/2014 |
| Form CT-1120SF | Service Facility Credit | 10/16/2014 |
| Form CT-1120X | Amended Corporation Business Tax Return | 12/02/2014 |
| Form CT-1127 | Application for Extension of Time for Payment of Income Tax | 11/12/2014 |
| Form CT-12-717A | Change of Resident Status - Special Accruals Connecticut Surety Bond Form | 11/06/2006 |
| Form CT-12-717B | Change of Resident Status - Special Accruals Other Acceptable Security Form | 11/06/2006 |
| Form CT-19 IT | Title 19 Status Release Form | 10/14/2014 |
| Form CT-2210 | Underpayment of Estimated Income Tax by Individuals, Trusts and Estates (Schedules A & B) | 01/21/2015 |
| Form CT-3911 | Taxpayer Statement Regarding Refund - Use this form to report a lost, stolen or missing refund check | 12/12/2013 |
| Form CT-4422 UGE | Application for Certificate Releasing Connecticut Estate Tax Lien for estates of decedents dying on or after January 1, 2005 | 05/21/2014 |
| Form CT-4852 | Substitute for Forms W-2 and 1099-R | 11/06/2006 |
| Form CT-6251 | Connecticut Alternative Minimum Tax Return | 01/22/2015 |
| Form CT-706-709 EXT | 2014 Application for Estate and Gift Tax Return Filing Extension and for Estate Tax Payment Extension -Fillable | 05/21/2014 |
| Form CT-706-709 | 2014 Connecticut Estate and Gift Tax Return -Fillable | 12/08/2014 |
| Form CT-706NT EXT | Application for Extension of Time for Filing Form CT-706 NT | 05/21/2014 |
| Form CT-706NT | 2014 Connecticut Estate Tax Return (For Nontaxable Estates) - Fillable | 05/21/2014 |
| Form CT-709Farmland | Schedule CT-709 Farmland -Fillable | 08/16/2013 |
| Form CT-8379 | Nonobligated Spouse Claim | 10/31/2014 |
| Form CT-8801 | Credit for Prior Year Connecticut Minimum Tax for Individuals, Trusts and Estates | 01/22/2015 |
| Form CT-8822 | Change of Address for Individuals | 12/06/2010 |
| Form CT-8822C | Corporation Business Tax Change of Address | 01/02/2014 |
| Form CT-8857 | Request for Innocent Spouse Relief | 01/21/2015 |
| Form CT-990 EXT | 2014 Application for Extension of Time to File Unrelated Business Tax Return | 12/02/2014 |
| Form CT-990T | 2014 Connecticut Unrelated Business Tax Return | 12/02/2014 |
| Form CT-CHET | 2014 Connecticut Higher Education Trust (CHET) 529 College Savings Plan Contribution | 11/05/2014 |
| Form CT-EITC | 2014 Connecticut Earned Income Tax Credit | 01/09/2015 |
| Form CT-IRF | Insurance Reinvestment Fund Credit | 10/16/2014 |
| Form CT-IT Credit | Schedule CT-IT Credit | 10/14/2014 |
| Form CT-K-1T | 2014 Transmittal of Schedule CT-K-1, Member's Share of Certain Connecticut Items | 12/22/2014 |
| Form CT-NAICS | NAICS Codes for Principal Business Activity for Connecticut Tax Purposes | 05/07/2004 |
| Form CT-SI | Nonresident or Part-Year Resident Schedule of Income From Connecticut Sources | 12/31/2014 |
| Form CT-SIRF | 2014 Second Insurance Reinvestment Fund Tax Credit | 06/20/2014 |
| Form CT-UISR | Urban and Industrial Site Reinvestment Credit | 10/16/2014 |
| Form 115NIN | Nonadmitted Insurance Premium Tax Return | 01/15/2014 |
| Form 115RRG | 2014 Insurance Premium Tax Return Risk Retention Groups | 07/30/2014 |
| Form 207 ES | 2015 Estimated Insurance Premiums Tax Payment Coupon Domestic Insurance Companies | 08/01/2014 |
| Form 207 K | 2014 Insurance/Health Care Tax Credit Schedule | 06/23/2014 |
| Form 207 | 2014 Insurance Premiums Tax Return Domestic Companies | 07/30/2014 |
| Form 207C | 2014 Insurance Premiums Tax Return Captive Insurance Companies | 07/30/2014 |
| Form 207F ES | 2015 Estimated Insurance Premiums Tax Payment Coupon Foreign and Non-Resident Insurance Companies | 08/06/2014 |
| Form 207F EXT | 2014 Application For Extension of Time To File Nonresident and Foreign Insurance Premiums Tax Return | 08/06/2014 |
| Form 207F | 2014 Insurance Premiums Tax Return Nonresident and Foreign Companies | 07/30/2014 |
| Form 207F-5 | 2014 Insurance Premiums Tax Return Nonresident and Foreign Companies Initial Five-Year Return | 07/30/2014 |
| Form 207HCC ES | 2015 Estimated Health Care Centers Tax Payment Coupons | 08/11/2014 |
| Form 207HCC EXT | 2014 Application for Extension of Time to File Domestic Insurance Premiums Tax Return or Health Care Center Tax Return | 08/01/2014 |
| Form 207HCC | 2014 Health Care Center Tax Return | 07/30/2014 |
| Form 207I | 2014 Underpayment of Estimated Insurance Premiums Tax or Health | 07/30/2014 |
| Form GAA | 2014 Insurance Guaranty Association Credit | 08/01/2014 |
| Form GAA-1 | 2014 Transfer of CIGA Assessment Credit | 07/30/2014 |
| Form GAA-2 | 2014 Transfer of CLHIGA Assessment Credit | 08/01/2014 |
| Form NAA-01 | 2014 Connecticut Neighborhood Assistance Act (NAA) Program Proposal | 02/24/2014 |
| Form NAA-02 | 2014 Connecticut Neighborhood Assistance Act Business Application | 08/14/2014 |
| Form OP-186 | Individual Use Tax Return | 07/16/2013 |
| Form OP-424 | 2013-2014 Business Entity Tax Return | 01/22/2015 |
