Substitute W-9 & Direct Deposit Setup Form
Welcome to the OSU Vendor Portal! This portal was designed to easily gather your information in a secure and fast way. After completing the form in its entirety, please review, sign, and return the Substitute W-9 in the return envelope included with the W-9 letter that was sent to you.
Complete the form online
Print, Review, and Sign
Return to OSU using the contact information on the bottom of the form
OSU Vendor ID #