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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

1. Complete the form online
Print, Review, and Sign

2. Print, Review, and Sign
 Mail to OSU using the return envelope

3. Return to OSU using the contact information on the bottom of the form
OSU Vendor ID #