We are currently adding the 2024/2025 forms as they are finalized. If you don't see a form linked, it means it isn't available yet.
Continue to check for updates. Thank you for your patience
File Your 2024 Connecticut Income Tax Return Online!
Benefits to electronic filing include:
- Simple, secure, and can be completed from the comfort of your home.
- Can reduce return errors.
- Results in an immediate confirmation that your submission has been received by DRS.
- If you are expecting a refund, electronic filing is the quickest way to receive the refund.
Please consider an electronic option to file your state income tax return this year. Thank you!
Instructions
Name | Description | Revised Date |
CT-1040 | 2024 Connecticut Resident Income Tax Return Instructions | |
CT-1040NR/PY | 2024 Connecticut Nonresident and Part-Year Resident Income Tax Return Instructions |
Name | Description | Revised Date |
CT-1040 | 2024 Resident Income Tax Return | 12/2024 |
Part-Year/Nonresident Forms
Name | Description | Revised Date |
CT-1040NR/PY | 2024 Nonresident/Part-Year Resident Tax Return | 12/2024 |
Schedule CT-SI | Nonresident or Part-Year Resident Schedule of Income from Connecticut Sources | 12/2024 |
Schedule CT-1040 AW | Part-Year Resident Income Allocation | 12/2024 |
EITC Forms
Schedule CT-EITC | 2024 Connecticut Earned Income Tax Credit | 12/2024 |
APL-505 | Taxpayer's Earned Income Tax Credit Protest | NEW |
Other Forms & Schedules
Schedule CT-1040 REC | Real Estate Conveyance Tax Credit Schedule - Used for Purposes of Completing Form CT-1040 | 10/2024 |
CT-1040 EXT | Application for Extension of Time to File Connecticut Income Tax Return for Individuals | 12/2024 |
Schedule CT-Dependent | CT Resident Dependent Information | 12/2024 |
Schedule CT-BIO | Bioscience Worksheet | 12/2024 |
Schedule CT-PE | Pass-Through Entity Tax Credit | 12/2024 |
Schedule CT-IT Credit |
Income Tax Credit Summary | 12/2024 |
CT-1040BA | Nonresident Business Apportionment Schedule | 12/2024 |
CT-1040CRC | Claim of Right Credit | 12/2024 |
Schedule CT-CHET |
2024 Connecticut Higher Education Trust (CHET) 529 College Savings Plan Contribution | 12/2024 |
CT-1040EFW | Connecticut Electronic Withdrawal Payment Record | 12/2022 |
CT-1040ES | 2025 Estimated Connecticut Income Tax Payment Coupon for Individuals | 12/2024 |
CT-1040V | Connecticut Electronic Filing Payment Voucher | 12/2024 |
Schedule CT-1040WH |
Connecticut Income Tax Withholding Supplemental Schedule | 12/2024 |
CT-1040X | Amended Income Tax Return for Individuals - NOTE: If you are claiming EITC on Form CT-1040X, you must include Schedule CT-EITC in your submission | 12/2024 |
CT-1127 | Application for Extension of Time for Payment of Income Tax | 12/2024 |
CT-19IT | Title 19 Status Release Form | 12/2024 |
CT-2210 | Underpayment of Estimated Income Tax by Individuals, Trusts, and Estates | 12/2024 |
CT-3911 | Taxpayer Statement Regarding Refund -Use this form to report a lost, stolen or missing refund check | 12/2023 |
CT-4852 | Substitute for Forms W-2 and 1099-R | 12/2023 |
CT-6251 | Connecticut Alternative Minimum Tax Return | 12/2024 |
CT-8379 | Nonobligated Spouse Claim | 12/2024 |
CT-8801 | Credit for Prior Year Connecticut Minimum Tax for Individuals, Trusts, and Estates | 12/2024 |
CT-8857 | Request for Innocent Spouse Relief | 12/2024 |
CT-IRF | Insurance Reinvestment Fund Credit | 12/2024 |
OP-186 | Individual Use Tax Return | 2018 |
CT-12-717A | Change of Resident Status - Special Accruals Connecticut Surety Bond Form | 2017 |
CT-12-717B | Change of Resident Status - Special Accruals Other Acceptable Security Form | 2017 |
CT-12-717A&B | Forms CT-12-717 A and CT-12-717 B Instructions | 2017 |