CT Income Tax

Prepare & File your State of CT Individual Income Tax Return

If you are required to file a state individual income tax return, it is recommended that you follow these steps prior to preparing your federal tax return:

  1. Collect necessary tax forms and documents.
  2. Determine which Form CT-1040 you should file (e.g., CT-1040, CT-1040NR/PY). Refer to the form instructions available on the State of CT Department of Revenue Services website.
  3. Familiarize yourself with the relevant CT individual income tax instructions, including:
    • CT-1040, Connecticut Resident Income Tax Return Income Tax
    • CT-1040 NR/PY, Connecticut Nonresident and Part-Year Resident Income Tax
  4. Prepare and file your tax return (State of CT filing deadline: April 15, 2024)

There are many resources available to you for filing your CT income tax return. You may be able to file electronically via CT DRS myconneCT at no cost or engage a personal tax advisor.