Where to mail ct state tax return

In Connecticut, you can mail your state tax return to the following address:

Connecticut Department of Revenue Services PO Box 369 Hartford, CT 06141-0369

Make sure to use the correct mailing address for your specific situation:

• If you're filing a paper return, use the above PO Box address.
• If you're filing a return with a payment, use the following address:
  • Connecticut Department of Revenue Services
  • PO Box 269
  • Hartford, CT 06141-0269
• If you're filing a return with a payment and you're a business, use the following address:
  • Connecticut Department of Revenue Services
  • PO Box 311
  • Hartford, CT 06141-0311

It's also a good idea to keep a copy of your return and any supporting documents for your records.

Note: If you're filing electronically, you can do so through the Connecticut Department of Revenue Services' website or through a tax preparation software like TurboTax or H&R Block.