Even though the order is billed
internationally, the goods supplied are still supplied domestically,
this is why the tax is still applied.
For example, the Austalian tax office link below outlines that if goods
are supplied and used internationally then the order is exempt from the
tax component. This means that if the goods are actually made available
or supplied domestically, then tax is still applied.
http://www.ato.gov.au/Business/Consultation--Business/In-detail/Electronic-commerce/Industry-issues/Electronic-Commerce-Industry-Partnership---issues-register/
