This article applies to:

1041 Illinois electronic filing information

If you have specific questions about what you can e-file or about rejections you received, contact the state for more information.

Illinois Department of Revenue

Electronic Filing Section

P.O. Box 19479

Springfield, IL 62794-9479

Website
: tax.illinois.gov

Email
: Stuart.Wilcoxon@Illinois.gov

Phone
: 217-785-0574

Tax refund inquiries
: tax.illinois.gov/individuals/refunds.html

E-filing information	Details
Grace period	10 calendar days
E-Filing mandate	Yes, return must be e-filed if federal return is e-filed. Mandated for trusts, not required for amended returns or returns of estates.
Accepts state-only filings	Yes 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 Non-resident Estimate payments (with return) Extension (balance due only) Withholding (part of main return)
Return types not accepted	Amended 5227 Part-year resident Estimate payments Extension
Accepts return with these conditions	Refund Zero balance Balance due
Direct deposit of refunds	Yes
Accepted forms of payment	Direct debit (EFW) Online payments via MyTaxIllinois Check
Signature requirements	None, enter dates on the ILELF screen to sign the return No
Supports PDF attachments	Yes
Special considerations	You must pay balances greater than $20,000 electronically IL requires a federal attachment with the return N/A