Australians don’t have to show a visa when they go to canada, unlike many other places. However, to enter the United States as of March 15, 2016, Australians need to have the eTA (Travel Authorization) they can. (eTA) requirements for Australians can be found here, and you can read about them. The only people from Australia who need an electronic travel authorization (eTA) are those who already have visas and don’t need one. E-visas do not permit people to move to a new country. Instead, they let people go on short-term trips.