1065 Illinois 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.

Illinois Department of Revenue

Taxpayer Assistance Division

PO Box 19044

Springfield, IL 62794-9044

Website
: tax.illinois.gov

Email
: Stuart.Wilcoxon@Illinois.gov

Phone
: 800-732-8866 or 217-782-3366

E-filing information	Details
Grace period	10 calendar days
E-filing mandate	Yes
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	Partnership Extension
Return types not accepted	Amended Consolidated Composite Composite Extension Estimates
Accepts returns with these conditions	Refund Zero balance Balance due
Direct deposit of refunds	No
Accepted forms of payment	Direct debit (EFW) Check by mail Electronic funds transfer
Signature requirements	None
Supports PDF attachments	Yes
Tax year(s) supported for e-filing	Current tax year and two prior tax years