1041 Connecticut electronic filing information

State contact information

If you have specific questions about what you can e-file or about rejections you received, contact the state for more information.
Connecticut Department of Revenue - Electronic Commerce Unit
Phone:
860.297.4973

State electronic filing details

Grace period
E-Filing mandate
Yes
Accepts state-only filings
Yes
Return types accepted
Resident
Non-resident
Estimate payments
Extension
Return types not accepted
Amended
Accepts return with these conditions
Refund
Zero balance
Balance due
Direct deposit of refunds
Yes
Accepted forms of payment
Direct debit (EFW)
Credit Card
Online payment
Check
Signature requirements
None
Supports PDF attachments
Yes
Special considerations
None

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