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 XP) as well as the date and time of the problem and a brief description of the error.

Areas of the Student Systems web site will be unavailable from 7:00 a.m. until 10 a.m. Saturday, November 21, due to a system upgrade. We apologize for the inconvenience.

Please note that the SIS is not available Sundays between 4:00 and 5:00 AM Eastern Time.