The unit of currency is the Australian dollar which is divided into 100 cents.The notes are: $5, $10, $20, $50, and $100.
Coins: 5c 10c 20c, 50c, $1 and $2.
The 1c and 2c coins were phased out in 1990. Shops round prices up or down to the nearest 5c on your total bill, not on individual items.
...for history of Australian currency and more info
Credit cards can be used to get cash from any bank (take some form of photo ID).
In the event of a lost or stolen credit card or cheques, call the company immediately:
Central branches of major banks have foreign exchange facilities. (Fees apply)
Automatic Teller Machines (ATMs) operate 24 hours.
GST (Goods and Services Tax)