If you have an account that is setup to be Tax Exempt (instructions here: Applying for Tax Exempt Account Status) you'll have the option to select a Tax Exempt certificate during the order.
1. Make sure you are logged in using the account that was setup to be Tax Exempt
2. You will see different links to view your cart, and go to the Tax Exempt Checkout, that will be visible at the top of every page
3. When you get to the Checkout look for the following box:
4. Click 'Add Certificate' and complete the information in the pop-up screen
5. Click Add Certificate, and you should now see any Sales Tax disappear. If it doesn't please reach out to us before placing the order as we cannot remove Sales Tax once an order has been processed.
6. These details will be saved to your profile, so you can just select from the list next time you go to place an order.