Customer Service Hours
Monday through Friday, 8am to 5pm MT
(These hours will remain in effect until March 15, 2021)
Contact Numbers
Toll Free: (800) 663-1662
Fax: (801) 366-8400
Servicemembers: (844) 255-8326
Email Address (General Questions Only)
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
PO Box 979133 St. Louis, MO 63197-9000
Advocate Websites