To avoid payment delays, invoices should be mailed directly to the Accounts Payable at the address below. Sending invoices to the Sold To / Ship To Address may delay payment.
Washington University
Accounts Payable
MSC-1056-414-355
7425 Forsyth Blvd
St. Louis, MO 63105-2161
The following information must be included on the invoice:
- A valid Purchase Order (PO) number.
- An invoice number, invoice date, invoice detail and amount.
- A valid Remittance Address to mail check payment or ACH instructions. Note: To learn about requirements for ACH payments, click here.
Additional invoice requirements:
- Multiple purchase orders may not be combined on a single invoice.
- Invoices should not include Missouri sales tax. See Paying Sales & Use Tax for additional information and exception certificates.