1040 Delaware 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.
Division of Revenue - Coordinator
820 N. French Street
Wilmington, DE 19801
Phone
: 302-577-8170
Tax Refund Inquiries
: 302-577-8200 or 866-276-2353

State electronic filing details

E-filing information
Details
Grace period
5 days
E-filing mandate
No
Accepts state-only filings
Yes. Attach the federal XML created for this State (Default).Only Federal e-file validation errors have to be cleared. E-file Reject Diagnostics do not have to be cleared
Return types accepted
Resident
Part-year resident
Nonresident
Extension
Return types not accepted
Amended
Estimate payments
Accepts returns with these conditions
Refund
Zero balance
Balance due
Direct deposit of refunds
Yes
Accepted forms of payment
Direct debit (EFW)
Credit card
Check
Online ePayment
Signature requirements
None. PIN not allowed as signature
Driver's license requirements
Optional
Supports PDF attachments
Yes
Tax year(s) supported for e-filing
Current tax year and two prior tax years
Special considerations
None
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