Sales tax exemption information and copies of various exemption forms are available on the Tax Department website.
Federal Tax ID #: 43-065-3611
Missouri ID #:12623890
DUNS #: 06-855-2207
Washington University in St. Louis
700 Rosedale Ave.
St. Louis, MO 63112
Find information about terms and conditions and sales tax exemptions.
If your purchase exceeds $25,000 or $10,000 or more using sponsored funds, you may need to complete the form.