Schedule CT-EITC: Connecticut Earned Income Tax Credit (2025)
Connecticut · Connecticut DRS · Used for tax years 2025
Schedule CT-EITC is used to calculate and claim the 2025 Connecticut Earned Income Tax Credit. It records your federal earned income credit, qualifying child information, and certain wage or self-employment income details, and is attached to Form CT-1040 or Form CT-1040X.
Who files this form
Use 2025 Schedule CT-EITC to claim the Connecticut earned income tax credit with Form CT-1040 or Form CT-1040X.
The form says you do not qualify if:
- You were a Connecticut nonresident or part-year resident during 2025. You must file Form CT-1040NR/PY instead.
- You did not claim the federal earned income credit for 2025.
- Your investment income is greater than $11,950.
If you already filed your 2025 Form CT-1040, you must file Form CT-1040X to claim the credit.
What you'll need
Have these forms and details available to complete the schedule:
- Your Social Security number.
- Your 2025 federal Form 1040 or Form 1040-SR, including the federal earned income credit on Line 27a.
- Federal Schedule EIC, if you claimed qualifying children. You will need each listed child's name, Social Security number, birth year, relationship, months living with you, and any student or disability designation.
- Forms W-2 and 1099, as applicable, for wages and employer or payer identification numbers.
- Business federal and Connecticut identification numbers and income or loss amounts, if you were self-employed or had income not reported on a W-2 or 1099.
- Form CT-1040 or Form CT-1040X, to which you will attach the schedule.
If you filed jointly for federal taxes but separately for Connecticut, you also need your separate federal adjusted gross income from Form CT-1040, Line 1, and joint federal adjusted gross income from federal Form 1040 or Form 1040-SR, Line 11a.
How to file
- Complete the schedule in blue or black ink only, including Lines 6 through 16 on the back.
- Attach the completed schedule to the back of Form CT-1040 or Form CT-1040X.
- Enter the credit from Line 16 on Form CT-1040, Line 20a, or Form CT-1040X, Line 22a.
- Do not use staples.
If you already filed your 2025 Form CT-1040, use Form CT-1040X to claim the credit.
The supplied form does not give a mailing address or e-filing directions. It lists portal.ct.gov/DRS for more information.
Common mistakes
- Forgetting the attachment: The form warns that your credit will be disallowed unless you attach the completed schedule to the back of Form CT-1040 or Form CT-1040X.
- Using the wrong year's form: Forms are year specific. Submit the correct year's form to avoid processing delays.
- Using staples or the wrong ink: Do not staple the forms. Complete the schedule in blue or black ink only.
- Skipping the back: The form reminds you to complete Lines 6 through 16.
Questions people ask
How is the 2025 Connecticut credit calculated?
Enter your federal earned income credit from federal Form 1040 or Form 1040-SR, Line 27a, on Line 8. Multiply it by 40% on Line 10. If you filed jointly federally but separately for Connecticut, complete the adjustment on Lines 12 through 15.
Is there an additional amount for a qualifying child?
Yes. If you listed a qualifying child on Line 5, enter $250 on Line 15a. Otherwise, leave Line 15a blank. Line 16 combines Line 10 or Line 15 with Line 15a.
What if I did not claim qualifying children on federal Schedule EIC?
The form directs you to skip Line 5 and go to Line 6.
Where do I report wages that had no Connecticut income tax withheld?
Complete Lines 6a through 6c using your Forms W-2 and 1099. If Connecticut income tax was withheld, enter the W-2 and 1099 information on Form CT-1040, Lines 18a through 18f.