If your organization is tax exempt, please get in touch with us about designating your user account as such by filling out the Contact Us form. Be sure to attach the necessary tax exemption documents to the form. A representative in our customer service will designate your account as tax-exempt so future purchases are not charged tax. Bookshop can also retroactively refund any taxes paid to purchases made prior to establishing a tax exempt account. Please provide the purchase order numbers, dates of purchase, total amount charged, or any other identifying information for purchases that need a retroactive refund applied.