1120 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 Services - Electronic Commerce Unit
25 Sigourney St., Suite 2
Hartford, CT 06106-5032
Email
: Jim.Annino@po.state.ct.usPhone
: 860-297-4713 State electronic filing details
E-filing information | Details |
|---|---|
Grace period | 5 days |
E-filing mandate | All corporate returns and their associated payments other than Form OP-424. |
Accepts state-only filings | Yes |
Return types accepted | C Corporation S Corporation Consolidated / Combined Short year Estimates (filed separate from return) Extension Amended C Corporation Amended S Corporation |
Return types not accepted | Amended Combined |
Accepts returns with these conditions | Refund Zero balance Balance due |
Direct deposit of refunds | Yes |
Accepted forms of payment | Direct debit (EFW) Electronic funds transfer (EFT) Check by mail (only if waiver is granted) |
Signature requirements | None |
Supports PDF attachments | Yes |
Tax year(s) supported for e-filing | Current tax year and two prior tax years |
Special considerations | Connecticut prefers that you use electronic funds withdrawal to make any payments. |
