1040 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.

Department of Revenue Services
Help Desk P.O. Box 2964 Hartford, CT 06104-2964

www.ct.gov/drs/ Email
: CT.eFile@ct.gov Phone
: 860.297.4973 or 860.297.5979 Tax Refund Inquiries
: 860.297.5962 or 800.382.9463

Grace period	5 days
E-filing mandate	You must e-file if preparing 50 or more returns.
Accepts state-only filings	Yes
Return types accepted	Resident Part-year resident Nonresident Estimate payments (there will be a separate e-file for each estimate payment) Extension Amended
Return types not accepted	N/A
Accepts returns with these conditions	Refund Zero balance Balance due
Direct deposit of refunds	Yes
Accepted forms of payment	Direct debit (EFW) Credit card Online ePayment
Signature requirements	Completing federal Form 8879 signature requirements satisfies state requirement
Supports PDF attachments	No
Tax year(s) supported for e-filing	Current tax year and two prior tax years (except for amended returns, which aren't eligible for e-file)
Special considerations	See Electronic filing handbook