Where to Send Your Connecticut Tax Return

Submitting your Connecticut personal income tax return involves specific procedures to ensure it reaches the Department of Revenue Services (DRS). Taxpayers have several official methods for filing, each with distinct submission points. The method you choose will determine the exact “where” for your return, whether it’s a digital portal or a physical mailing address.

Electronic Filing Options

The state of Connecticut encourages taxpayers to file their returns electronically, as it is the most efficient method, leading to faster processing. The primary digital platform is myconneCT, the DRS’s free online portal. Through myconneCT, you can file your return, make payments, and check your refund status directly with the state. Another popular electronic option is using commercial tax preparation software, which guides you through the process and submits the return on your behalf.

Mailing Addresses for Tax Returns

For those who choose to file a paper return using Form CT-1040, the mailing address depends entirely on whether a payment is included. If you are expecting a refund or have no tax amount due, you must send your completed return to a specific address designated for these filings. If your return includes a check or money order for taxes owed, it must be sent to a different P.O. Box. This address is specifically for returns with payments, ensuring the funds are handled correctly upon receipt. Using the wrong address can cause significant delays in the processing of your return and any associated payment or refund.

In-Person Drop-Off

For taxpayers in the Hartford area, the Connecticut Department of Revenue Services (DRS) provides a secure drop box for tax returns and payments. This drop box is located at the DRS main office, 450 Columbus Boulevard.

Addresses for Other Related Forms

Submitting other common tax forms also requires sending them to unique addresses, separate from the main Form CT-1040 addresses. If you need to amend a previously filed return, you must complete Form CT-1040X, the Amended Connecticut Income Tax Return for Individuals, and mail it to its own dedicated P.O. Box. If you cannot file your annual return by the April 15 deadline, you can request a six-month extension using Form CT-1040 EXT. When mailing this form, the address you use depends on whether you are including a payment. It is important to note that an extension only postpones the filing deadline, not the payment deadline; any tax owed is still due by the original date.