You can return the completed W-9 form a couple different ways. In person, return it by mail, or fax by sending it to the following number:

U.S. Bank 
Tax Reporting Operations
SL-MO-T6CD 
PO Box 524
St. Louis, MO 63166-0524

Fax: (314) 418-3530 

If you’d like to drop it off in-person, feel free to visit your local U.S. Bank branch. We recommend scheduling an appointment to allow for questions and processing. See also: How do I schedule an appointment at a U.S. Bank branch?