GST on Sales from Australia
From 1 July 2018 Australian goods and services tax (GST) will apply to sales of low value goods sold to consumers in Australia. Businesses that meet the A$75,000 registration threshold will need to register for GST, charge GST on relevant sales and remit the GST to us by lodging returns.
Thus, 10% VAT will be applied on any sales from any buyer in Australia.
Reference:
https://www.ato.gov.au/Business/International-tax-for-business/GST-on-low-value-imported-goods/When-to-charge-GST/