SUPPORTED STATE FORMS

Connecticut State Income Tax Forms

Stay current with supported tax forms, schedules, and filing requirements for Connecticut.

  • CT 1040Resident Individual Tax Return
  • CT 1040NRNonresident Individual Tax Return
  • CT 1040XIndividual Amended Return
  • CT 1040AWPart-Year Resident Allocation Worksheet
  • CT 1040CRCClaim of Right Credit
  • CT 1040ESIndividual Estimated Tax
  • CT 1040 EXTUnderpayment of Estimated Income Tax
  • CT SINonresident Schedule of Income from Connecticut Source
  • CT EITCEarned Income Tax Credit
  • CT 6251Individual Alternative Minimum Tax Return
  • CT ITIncome Tax Credit Summary
  • CT 2210Underpayment of Estimated Income Tax
  • CT 8379Nonobligated Spouse Claim
  • Use Tax Credit
  • Schedule CT-CHETConnecticut Higher Education Trust (CHET) 529 College Savings Plan Contribution
  • Schedule CT-PEPass-Through Entity Tax Credit