International students in Australia on a student visa can apply for permission to work. A student can work up to 20 hours a week on a casual basis during course time and full-time during vacation periods if they have been granted a visa with work rights. If you are studying a Masters or Doctorate course under subclass 574 you are permitted to work unlimited hours. Family members can can apply for permission to work up to 20 hours a week throughout the year. You can only apply for a visa with work rights after you arrive in Australia and have begun studying. The application charge for a student visa with permission to work is A$50.
The money you earn from working in Australia should only supplement your income and not be used as your only source of income. It can be a risk for international students to rely too much on part-time work as their main and only source of income; they may be asked to work for different working hours for varying payments. Sometimes it becomes too difficult to handle studies alongside a job, especially towards the end of the term.
Most students take part-time or casual jobs at some time during their studies. Some jobs are closely tied to courses of study (such as formal cadetships and informal arrangements such as part-time work by law students in solicitors' offices). Some students tutor school children or get jobs on campus in the canteen, the bookshop, in the institution's offices and as laboratory assistants. Some jobs are entirely outside the education community such as bartending, babysitting, gardening, hospitality, sales, information technology, restaurants, checkout work or fruit picking.
Some institutions offer a job placement service. If work is available you will need to obtain a tax file number from the Australian Government. Under certain circumstances dependants of students are permitted to work.