New Substitute Form W-9 and Vendor Authentication Process | 08/02/2021

Disbursement Services and Procurement Services are excited to announce the launch of a new web-based Substitute W-9 and Vendor Authentication process. The form, along with a job aid detailing its use, can be found on the Controller’s Forms website under Accounts Payable > Vendor Authentication Form. This new process provides a quick, user friendly, and secure mechanism to gather important data on vendors.

This new web-based form combines the former Substitute Form W-9, Accounts Payable Vendor Authentication Form – Organizations, and Accounts Payable Vendor Authentication and Direct Deposit Form – Individuals, into a single unified form.

When communicating with new suppliers, or current suppliers who want to update their information, be sure to reference the new process in the form of a direct link as there is no longer a form to attach to communications. You can link directly to the new form by copying the link here.

Questions/Comments/Concerns? Email Disbursement Services at