Do I need to pay GST? August 16, 2018 04:06 Updated Cointree includes GST in the Cointree fee when buying, selling and trading cryptocurrency on www.cointree.com To find out more about your Australian tax obligations, we reccomend check the ATO website. Related articles What information do I need for tax purposes? Which tax tools are supported? What deposit options does Cointree offer? Is Cointree tax-time friendly?