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.

1998 Corporation Business 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
CT-1120 Instruction Booklet 1998 Connecticut Corporation Business Tax Instructions
CT-1120 Form 1998 Corporation Business Tax Return
CT-1120/ CT-1120S ATT Form & Inst. 1998 Corporation Business Tax Return Attachment Schedules H, I, and J
CT-1120K Form 1998 Business Tax Credit Summary
CT-1120I Form & Inst. 1998 Computation of Interest Due on Underpayment of Estimated Tax (with instructions)
CT-1120X Form 1998 Amended Corporation Business Tax Return

1998 Other Corporation Tax Forms and Instructions

CT-1120A Form & Inst. 1998 Corporation Business Tax Return Apportionment Computation
Form
1998 Corporation Business Tax Return Apportionment Computation-Air Carriers
CT-1120A-BMC Form 1998 Corporation Business Tax Return Apportionment Computation - Motor Bus and Motor Carrier Companies
Form 1998 Corporation Business Tax Return Apportionment Computation of Income From Credit Card Activities
CT-1120A-IRIC Form 1998 Corporation Business Tax Return Apportionment Computation of Income from Services to Regulated Investment Companies
CT-1120A-LP Form 1998 Corporation Business Tax Return Apportionment of Limited Partnership Interests
CT-1120A-SBC Form 1998 Corporation Business Tax Return Apportionment Computation - Securities Brokerage Services
CT-1120 CC Form Authorization and Consent to be Included in a Combined Corporation Business Tax Return
CT-1120CR Form
1998 Combined Corporation Business Tax Return (Form Only)
CT-1120CR Instructions 1998 Combined Corporation Business Tax Return Instructions
CT-1120OC Form 1998 Opportunity Certificate Credit
CT-1120CRMC Form 25% Manufacturing Facility Credit for Facilities Located in a Targeted Investment Community (Combined Return)
CT-1120CRMCEZ Form 50% Manufacturing Facility Credit for Facilities Located in a Enterprise or Entertainment District (Combined Return)
CT-1120L Form
Corporation Business Tax Credit - Life Insurance Company
CT-1120MC Form 25% Manufacturing Facility Credit for Facilities Located in a Targeted Investment Community
CT-1120MCEZ Form 50% Manufacturing Facility Credit for Facilities Located in a Enterprise or Entertainment District
1998 Corporation Credit Forms and Instructions
CT-1120 EDPC Form 1998 Electronic Data Processing Equipment Property Tax Credit
CT-1120 FCIC Form 1998 Fixed Capital Investment Credit
CT-1120 GC Form 1998 Tax Credit for Research and Development Grants to Institutions of Higher Education
CT-1120 HCIC Form 1998 Human Capital Investment Credit
CT-1120 MEC Form 1998 Machinery and Equipment Expenditure Credit
CT-1120 RC Form 1998 Research and Experimental Expenditures Credit
CT-1120 RDC Form 1998 Research and Development Credit