Taxes and Super
You will need a Tax File Number (TFN) to work in Australia. Working on cash and without TFN is illegal. Usually your employer deducts taxes from your salary and pays to Australian Taxation Office (ATO). Also, if you are going to work and earn more than $18,200 per year then you must be filing your taxes. The Financial Year runs from 1st July to 30th June each year. The last date for filing taxes for individuals is 31st October.
Superannuation is different from taxes as it is money for your retirement. By law, your employer must pay you 9.5% superannuation on top of your salary. You cannot withdraw this money until you retire or leave the country permanently.