Box 74400
Milwaukee, WI 53274-0400
| Employer Information Line | |
|---|---|
| Telephone Number (Toll Free) | 877-209-5211 |
| Fax | Available upon request |
| Available upon request | |
Please contact us at the phone number above for assistance or with any questions you have regarding withholding remittances.
Representatives are available Monday – Friday, 8 AM – 5 PM CST.
