2025 Form CT-1040NR/PY
Connecticut Nonresident and Part-Year Resident Income Tax Return
Download or Print 2025 Connecticut Form CT-1040NR/PY
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About Connecticut Form CT-1040NR/PY
Connecticut Form CT-1040NR/PY is the income tax return for Connecticut part-year residents and nonresidents who need to report income connected to Connecticut. Use this form to report Connecticut-source income, allocate income between Connecticut and other states when required, calculate Connecticut income tax, claim applicable credits, and determine whether you owe tax or are due a refund. The 2025 Form CT-1040NR/PY PDF includes the nonresident and part-year resident return, Schedules 1 through 4, allocation fields, payment and refund lines, signature fields, and mailing or payment instructions.
Full-year Connecticut residents generally use Form CT-1040 instead. Use the Form CT-1040NR/PY instructions to confirm residency rules, income allocation, and which supporting schedules apply.
Connecticut Form CT-1040NR/PY PDF Files by Year
Click any of the Connecticut Form CT-1040NR/PY PDF links above to download, save, view, and print the file for the corresponding year. These free PDF files are unaltered and are sourced directly from the publisher.
Related Connecticut Part-Year and Nonresident Tax Forms
Need to download more state income tax forms? View the 2025 Connecticut part-year resident tax forms or nonresident tax forms lists.
| Form Code | Form Name |
|---|---|
| Form CT-1040NR/PY Instructions | Form CT-1040NR/PY Instruction Booklet |
| Schedule CT-1040AW | Part-Year Resident Income Allocation |
| Schedule CT-SI | Nonresident or Part-Year Resident Schedule of Income from Connecticut Sources |
| Schedule CT-IT Credit | Income Tax Credit Summary |
Frequently Asked Questions (FAQ)
Here are answers to common questions about downloading, printing, completing, and filing 2025 Connecticut Form CT-1040NR/PY.
When is 2025 Connecticut Form CT-1040NR/PY due?
For tax year 2025, Connecticut Form CT-1040NR/PY is generally due April 15, 2026. If you need more time to file, review the extension rules in the Form CT-1040NR/PY instructions, but pay any tax due by the original deadline to avoid penalties and interest.
Who should use Connecticut Form CT-1040NR/PY?
Form CT-1040NR/PY is used by Connecticut part-year residents and nonresidents who are required to file a Connecticut individual income tax return. Full-year Connecticut residents generally use Form CT-1040 instead.
Does Form CT-1040NR/PY include schedules?
Yes. The 2025 Form CT-1040NR/PY PDF includes Schedules 1 through 4. Read the form and line item instructions to determine which schedules apply to your Connecticut part-year resident or nonresident return.
Where can I find the Form CT-1040NR/PY instructions?
You can view, download, and print the Form CT-1040NR/PY instructions from our Connecticut nonresident and part-year resident instructions page. Use the instructions to confirm filing requirements, complete each line, allocate income, choose the correct mailing address, and determine which schedules or supporting forms apply to your return.
Where do I mail Connecticut Form CT-1040NR/PY?
Read the Form CT-1040NR/PY instructions before mailing your return. Connecticut mailing addresses may depend on whether you are making a payment, requesting a refund, or filing a return without payment.
Last updated: August 1, 2026
References:
- Form CT-1040NR/PY Connecticut Nonresident and Part-Year Resident Income Tax Return. State of Connecticut, Connecticut Department of Revenue. Retrieved August 1, 2026.
- Form CT-1040NR/PY Connecticut Nonresident and Part-Year Resident Income Tax Return Instructions. State of Connecticut, Connecticut Department of Revenue. Retrieved August 1, 2026.
- Individual Income Tax Forms. State of Connecticut, Connecticut Department of Revenue. Retrieved August 1, 2026.
- Connecticut Resident, Part-Year Resident, and Nonresident Tax Information. State of Connecticut, Connecticut Department of Revenue. Retrieved August 1, 2026.