As a not-for-profit educational institution, Washington University is exempt from Missouri sales tax. Missouri sales tax should not be paid on purchases made on behalf of the university.
The fastest, easiest way to comply with this best practice (and save MarComm money) is to work directly with a member of the operations team. Find someone with a procurement card or consult with any resident expert.
Due to the university’s non-profit status, a sales tax exemption certificate for purchases made in other states may be available.
For independent research on this topic, visit Paying Sales and Use Tax for additional information and exception certificates.