Commercial customers may contact the Commercial Accounts Receivable Office to obtain a copy of the invoice, or to obtain general information about the charges. Our staff can refer you to the appropriate sales department if detailed information about the charges is needed. If you already have an invoice, the NIU department's name and telephone number are listed under the customer mailing address.
It is the customer’s responsibility to follow-up with any adjustments to the billing.
Email: AccountsReceivables@niu.edu
Phone: (815) 753-1885; option #5.
Payment is to be made within 30 days of the date of the invoice. Check payments should be made payable to Northern Illinois University and should be mailed to:
Accounts Receivable Office
Office of the Bursar
Northern Illinois University
DeKalb, IL 60115-2854
Returned Checks: Checks returned unpaid by your bank for any reason are subject to a service charge of $25.00.