Sales tax exemption forms will be accepted on applicable purchases if a valid sales tax exemption form is completed and in compliance with the corresponding state's guidelines. If you qualify for a sales tax exemption and already have a valid exemption form on file with us, we can verify your exemption form at time of payment. If a form is not on file, you may complete the appropriate exemption form at time of payment as well. Sales tax will only be removed from your invoice after a valid exemption form has been received and verified.