The amount paid to Humble Bundle for tiers containing physical items DOES NOT include shipping and handling, Value Added Tax (VAT), customs fees, or location based retail sales taxes. During the redemption process on paizo.com you will be prompted to choose a shipping method and enter payment information.
In addition to shipping and handling costs, some addresses may have taxes and fees added during paizo.com's check out process. Some destinations may assess taxes or additional fees before final delivery to the recipient. It is the responsibility of the recipient to understand their local online retail sales tax, VAT, or other such import taxes or fees.