Location:

Carol Stream, IL

Processing Hours:

1:30 a.m. - 6 p.m., Monday - Friday
1:30 a.m. - 3 p.m., Saturday

Post Office Box

Inbound Payments:
P.O. Box 5400
Carol Stream, IL 60197-5400

Return Forms to:

P.O. Box 5921
Carol Stream, IL 60197-5921

Call Center Location:

Carol Stream, IL
Staffing Hours:
8 a.m. - 8 p.m., Monday - Thursday
8 a.m. - 5 p.m., Friday
9 a.m. - Noon, Saturday

Employers Contact Telephone:

1-877- 225-7077

Automated Voice Response (AVR) System

Hours of Operation:
24 hours a day; 7 days per week
AVR Telephone Number:
1-877- 225-7077

Options Available:

• Retrieve recent payment information.
• Retrieve disbursement information.
• Change your address.
• Request to have forms faxed to you.
• Find out how to make a payment.
• Access answers to Frequently Asked Questions.
• Get general information.

Security information needed:

• Social Security number.
• Personal Identification Number (PIN).

Note: Call 1-800-447-4278, if you need help.

Web site: Interactive Web site for the Illinois SDU