Sales TAX will charge Sales TAX if the customer lives in the State of California .

*For Canada shipments, USPS will request value-added tax (VAT)
*GST (goods and services tax) + P.S.T (provincial sales tax) and Brokerage amount.
Please be aware that the customer will be in charge of paying the sales tax in this case.

Please refer to this link:
About UPS Customs Brokerage Fee
*For more details, please refer to each organization.