Welcome to Yale University Student Information Systems

The Student Information Systems (SIS) site provides students with a gateway to various applications including eBill-ePay, Banner Web, Online Course Selection (OCS), and Online Course Information (OCI).

If you encounter a problem accessing the Student Information Systems Web site, please click here for assistance. Be sure to include your Netid, the browser name and version, your platform (e.g. Windows 7, Mac OS X Mountain Lion) as well as the date and time of the problem and a brief description of the error.