NOTICE: Taxpayers are strongly encouraged to visit the DRS website for answers to many questions. You may also email DRS at drs@po.state.ct.us. If contacting DRS by phone, please plan for wait times that may be longer than usual. See DRS FAQ's, which now include important information regarding Connecticut sales tax. Frequently Asked Questions

Taxes which can be filed in TSC

Which taxes can I file using the Taxpayer Service Center? (TSC)

ELECTRONICALLY FILE THE FOLLOWING BUSINESS TAX RETURNS
  • Admissions and Dues Tax Return
  • Attorney Occupational Tax Return
  • Beverage Container Deposit Report 
  • Business Entity Tax Return
  • Corporation Business Tax
    • (Forms CT-1120, CT-1120ES, CT-1120EXT)
  • Pass-Through Entity Tax Return 
    • (Forms CT-1065/1120SI, CT-1065/CT-1120SI ES, CT-1065/CT-1120SIEXT)
  • Electronic Generation Tax Return 
  • Hospital Net Revenue
  • Income Tax Return for Trusts and Estates 
    • (Forms CT-1041, CT-1041S, CT-1041EXT)
  • Nursing Home User Fee
  • Prepaid Wireless Fee
  • Resident Day User Fee Tax Return 
  • Room Occupancy Return
  • Sales and Use Tax Return
  • Withholding Wage
    • (Forms CT-WH, CT-941, CT-W3)
  • Withholding Non-Wage
    • (Forms CT-8109, CT-945, CT-1096)
ELECTRONICALLY FILE THE FOLLOWING INCOME TAX RETURNS
  • CT-1040 - Connecticut Resident Income Tax
  • CT-1040NR/PY - Nonresident/Part-Year Resident Tax Return
  • CT-1040ES - Estimated Connecticut Income Tax Payment for Individuals
  • CT-1040EXT - Application for Extension of Time to File Income Tax Return for Individuals
  • CT-1040X - Amended Income Tax Return for Individuals