If you need to report or update your social security number or tax ID number please use this form.
If you are an international student on the F-1 or J-1 visa status and do not have a SSN or ITIN, you do not have to fill out the the W9-S or the form located above.
- ECSI is the name of the vendor we use to process and report 1098-T information
- 1098-T Electronic Notification Process:
To give consent to receive your notification electronically, log in to the SECURE website below using the given information: If you need any help logging in, please contact ECSI's 1098-T hotline at 866-428-1098.
Read information, check the consent box, verify your email address and click the submit button.
ECSI contact information: 1-866-428-1098 or website (1R is CSU San Marcos school code)
CSUSM Tax Information Contact:
Phone: (760) 750-4492