Do I have to pay your Goods and Services Tax (GST) if I am purchasing your opal jewellery from overseas?
No, GST only applies to people purchasing products from within Australia.
Is the tax (GST) removed if the item is purchased online in Australia, but the customer is going overseas shortly after?
We do not have a duty free or closed bag service; this is not possible with online transactions.
However, you can take advantage of the Tourist Refund Scheme (TRS) which allow you to claim back GST at your point of departure from Australia. According to the following conditions –
Please see http://www.customs.gov.au/site/page.cfm?u=4646 for more information.