I sell a physical product from the USA worldwide. VAT and all other relevant taxes are entirely handled by the person importing it, before the product is relea

I sell a physical product from the USA worldwide. VAT and all other relevant taxes are entirely handled by the person importing it, before the product is released from customs. I don't even think about it. Perhaps SAAS people just should physically send a "activation code" in the mail? Then the person importing it can just handle it.