I've never heard of any regulations. There are plenty of successful online-only retailers across a range of industries. AFAIK you just setup a website, register

I've never heard of any regulations. There are plenty of successful online-only retailers across a range of industries. AFAIK you just setup a website, register for GST and off you go. The only issue I've heard is that some brick/mortar shops have been putting pressure on suppliers not to deal with online companies. But our beloved ACCC (pro-consumer agency) is investigating as we speak and I doubt that will last very long.