CT CT-1040 Information
You must file a Connecticut resident income tax return if you were a resident for the entire year and any of the following is true for the 2014 taxable year: • You had Connecticut income tax withheld; • You made estimated tax payments to Connecticut or a payment with Form CT-1040 EXT; • You meet the Gross Income Test; • You had a federal alternative minimum tax liability; or • You are claiming the Connecticut earned income tax credit (CT EITC). Most Connecticut taxpayers can now electronically file through the new electronic Taxpayer Service Center (TSC-IND).
Link to official form info: Connecticut CT-1040
Link to official form info for CT-1040
Tax Reminder works year round to keep official tax form info up-to-date for Connecticut and the rest of the USA. The IRS and states change their forms often, so we do the hard work for you of figuring out where the official form info is located.
To access the official link to form CT CT-1040 and get reminded when it's due, sign up for a free Tax Reminder account:
- Upcoming Due Dates in the Next Year:*
- Thursday Apr 15, 2027
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Create a free account to see exactly when to file this form, receive email or SMS notification reminders, and to keep a record of filing it in your history.
* Due dates are based on the filing requirements for this form and may vary depending on your tax year.
10 Connecticut Tax Filings & Forms:
CT-1120 - Corporation Business Tax Return CT-1040 - Resident Income Tax Return CT-1040NR/PY - Nonresident and Part-Year Resident Income Tax Return CT-1065/CT-1120SI - Composite Income Tax Return (S Corp) CT-941 - Quarterly Reconciliation of Withholding Form CT-W3 - Annual Reconciliation of Withholding UC-2 - Employer Contribution Return CT-WH - Withholding Tax Payment Form OS-114 - Sales and Use Tax Return OS-114 - Sales and Use Tax ReturnAre we missing a Connecticut tax form?
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