If you are coming into Australia for study or work there are English speaking requirements that you must meet. Your English must be up to a certain standard and you must pass certain tests to reach those standards.
IELTS (International English Language Testing System)is the best choice of test for students, migrants and workers coming to Australia.
In Australia, IELTS continues to deliver test results that are most familiar to and trusted by institutions and organisations. More than 9,000 universities, employers, professional registration bodies and governments around the world accept IELTS as evidence of your English proficiency.