When you import goods into Australia, a 10% goods and services tax (GST) is charged by Australian customs. In the past, Australian customs has collected GST on goods and services valued over 1,000 AUD, and as of 1 July 2018, GST will also be charged on shipments equal or less than 1,000 AUD. 

How is GST calculated?
GST is based on the value of the items you ship, plus any service and shipping charges. Australian customs collects GST on individual merchant shipments over 1,000 AUD, and MyUS is responsible for collecting GST on shipments equal or less than 1,000 AUD. Any GST charges will appear on your ship request.

GST is valued and charged for each individual store (e.g., if you ship a consolidated package with MyUS with a $200 item from Store A and $1,200 item from Store B, MyUS will collect the GST for Store A, and Australian customs will collect the GST for Store B.) Learn more