1120 Wisconsin 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.
Wisconsin Department of Revenue
P.O. Box 8949
Madison, WI 53708-8949
Website
: www.revenue.wi.gov/Pages/home.aspxPhone
: 608-264-6886 State electronic filing details
E-filing information | Details |
|---|---|
Grace period | 10 calendar days |
E-filing mandate | Yes, all returns |
Accepts state-only filings | Yes |
Return types accepted | C Corporation S Corporation Consolidated : Form 6 for C corp, and Form 5S for Qsub S corp Amended Short Year Estimates (filed with return) 1CNS (Composite) PW-1 (Withholding) Form 4H Extension |
Return types not accepted | |
Direct deposit of refunds | Yes |
Accepted forms of payment | Direct debit (EFW) Electronic funds transfer (EFT) Check by mail |
Signature requirements | ERO retains signed filing authorization |
Supports PDF attachments | Yes |
Tax year(s) supported for e-filing | Current tax year and two prior tax years |
Special considerations | Electronic payments are mandated if the prior year tax was greater than $1,000. |
