Only orders placed in Texas are currently subject to sales tax.
For tax exempt orders, please create your user account and email a copy of your signed tax exempt certification to firstname.lastname@example.org then wait for confirmation that your account is listed as tax exempt BEFORE placing an order.
Orders placed in Texas before tax exempt status is confirmed will automatically have sales tax applied. Sales tax will not be refunded if an order is placed prior to confirming tax exempt status.
Any additional taxes, fees, duties, customs import fees, etc. are the responsibility of the purchaser.