One must become an approved vendor of Columbia University in order to receive payments of any kind. This includes reimbursement requests. To start the process, a potential vendor must send an email to Pamela Guardia containing the following information: name, address, phone number, and email address. The information will be sent to the Columbia University Accounting Department for processing and approval.

First time payees will receive an email from accounting with a link to a secure webpage containing a questionnaire, which can be accessed via the provided temporary login. The login will expire after 1 week. The email will also contain instructions on how to submit either a W9 or a W8BEN form. Please note that US citizens and US permanent residents must submit a W9 form. All others must submit a W8BEN. W9 or W8BEN forms that are not completely filled out, signed and dated will not be accepted.

Vendor Links

Payment for a Good or Service
Sample Invoice

Business Expense Forms
Non-CU Expense Form
Travel & Business Expense Report