Sales Tax when Harvard is the purchaser
501(c)(3) Non-Profit Status
Harvard University is registered as a 501(c)(3) non-profit organization with the US IRS. This means that Harvard University is a non-profit organization for income tax purposes. Although the 501(c)(3) document signifies that Harvard is a tax exempt organization, the document itself is typically not used with vendors for sales tax purposes.
Sales Tax Exemption
Each US state has its own sales tax laws and regulations. Harvard University is exempt from sales tax in the Commonwealth of Massachusetts and several other states.
See Harvard's Procurement website for information about sales tax, including exemption certificates.