Customer Service Hours
Monday through Thursday, 6am to 7pm MT
Friday, 6am to 5pm MT
Contact Numbers
Toll Free: (800) 663-1662
Fax: (801) 366-8400
Servicemembers: (844) 255-8326
Email Address
Email: customerservice@mycornerstoneloan.org
Servicemember Email: Servicemembers@mycornerstoneloan.org
Correspondence Address
CornerStone Education Loan Services
P.O. Box 145122 Salt Lake City, UT 84114-5122
Payment Address
U.S. Department of Education
CornerStone Education Loan Services
PO Box 105189 Atlanta, GA 30348-5189
