Where to Mail Your Connecticut Tax Return

Filing your Connecticut state income tax return and submitting it to the correct location is part of your annual tax obligations. The Connecticut Department of Revenue Services (DRS) provides specific instructions to ensure your documents are processed efficiently. Using the designated mailing address for your specific situation helps prevent delays and potential issues with your filing.

Mailing Addresses for Form CT-1040

The specific mailing address you use for your paper-filed Form CT-1040 depends on whether you are enclosing a payment. Sending your return to the wrong location can cause significant processing delays.

For tax returns that include a check or money order for taxes owed, the correct address is: Department of Revenue Services, PO Box 2977, Hartford, CT 06104-2977. This address directs your return and payment to the department responsible for handling remittances. Conversely, if you are expecting a refund or have a zero balance, your return should be mailed to a different location. Use the following address for refund or no-tax-due filings: Department of Revenue Services, PO Box 2976, Hartford, CT 06104-2976. This P.O. Box is designated for returns that do not require payment processing.

Assembling Your Tax Return Packet

Before mailing, ensure you have signed and dated your Form CT-1040. Only attach other documents, such as federal Forms W-2 or 1099, if specifically instructed to do so.

If you owe taxes, you must include a payment. Make your check or money order payable to “Commissioner of Revenue Services.” To ensure proper credit, write the tax year and “Form CT-1040” on the memo line of the check. Do not staple or otherwise attach your payment to the tax return itself; simply enclose it in the envelope.

Alternatives to Mailing

The Connecticut DRS encourages taxpayers to file electronically, as it is a more secure and faster method for submitting your return. E-filing can lead to quicker processing of your return and, if applicable, a faster tax refund. This method also provides confirmation that your return has been received by the DRS.

You can file your state return for free using the state’s official online portal, myconneCT. Many commercial tax preparation software programs also support electronic filing for Connecticut state returns, often integrating it with your federal filing process.