Customer Service Hours 

Monday through Thursday, 6am to 7pm MST

Friday, 6am to 5pm MST

Contact Numbers

Toll Free: (800) 663-1662
Fax: (801) 366-8400

Servicemembers: (844) 255-8321

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