The Australian dollar is the official currency and legal tender of Australia, including all of its external territories, and three independent sovereign Pacific Island states: Kiribati, Nauru, and Tuvalu. As of 2022, it is the sixth most-traded currency in the foreign exchange market and also the seventh most-held reserve currency in global reserves.
The pound was the currency of Australia from 1910 until 14 February 1966, when it was replaced by the Australian dollar. Like other £sd currencies, it was subdivided into 20 shillings, each of 12 pence.
The twelve-sided Australian fifty-cent coin is the third-highest denomination coin of the Australian dollar and the largest in terms of size in circulation. It is equal in size and shape to the Cook Island $5 coin, and both remain the only 12-sided coins in the southern hemisphere. It was introduced in 1969 to replace the round fifty-cent coin issued in 1966.
The twenty-cent coin of the Australian decimal currency system was issued with conversion to decimal currency on 14 February 1966, replacing the florin which was worth two shillings, a tenth of a pound.
The Australian five-cent coin is the lowest-denomination circulating coin of the decimal Australian dollar introduced in 14 February 1966, replacing the pre-decimal sixpence. It has been the lowest-denomination coin in general circulation since the withdrawal of the one-cent and two-cent coins in 1992.
The Australian ten-cent coin is a coin of the decimal Australian dollar. When the dollar was introduced as half of an Australian pound on 14 February 1966, the coin inherited the specifications of the pre-decimal shilling; both coins were worth one twentieth of a pound and were called "bob". On introduction it was the fourth-lowest denomination coin. Since the withdrawal from circulation of the one and two cent coins in 1992, it has been the second-lowest denomination coin in circulation.
The Australian two-dollar coin is the highest-denomination coin of the Australian dollar. It was first issued on 20 June 1988, having been in planning since the mid-1970s. It replaced the Australian two-dollar note due to having a longer circulatory life. The only "mint set only" year was 1991.
The Australian fifty-dollar note is an Australian banknote with a face value of fifty Australian dollars (AUD$50). Since 1995 it has been a polymer banknote featuring portraits of Edith Cowan, first female member of an Australian parliament, and inventor and Australia's first published Aboriginal Australian author, David Unaipon.
The Australian twenty-dollar note was issued when the currency was changed from the Australian pound to the Australian dollar on 14 February 1966. It replaced the £10 note which had similar orange colouration. There have been only three different issues of this denomination: a paper note which had a gradient of yellow and red, with a distinct orange background, and two designs of polymer note which can be recognised for their distinct red-orange colouration. The first polymer note was issued on 31 October 1994 and the Next Generation polymer banknote was issued on 9 October 2019.
The Australian ten-dollar note was one of the four original decimal banknotes excluding the Australian five-dollar note, was issued when the currency was changed from the Australian pound to the Australian dollar on 14 February 1966. It replaced the Australian five-pound note, which included the same blue colouration. There have been four different issues of this denomination: a paper banknote; a commemorative hi-polymer note, to celebrate the bicentennial of Australian settlement ; the 1993–2017 polymer note; and from September 2017 a polymer note featuring a transparent window.
The Australian one-hundred-dollar note was first issued in 1984 as a paper note. There have been two different issues of this denomination: initially a very light turquoise-blue paper note, and from May 1996, a green polymer note. Since the start of issue there have been six signature combinations. Two other combinations were not issued.
The cent, formally the one-cent coin, was the lowest-denomination coin of the Australian dollar. It was introduced on 14 February 1966 in the decimalisation of Australian currency and was withdrawn from circulation in 1992. It is still minted as a non-circulating coin. A one-cent coin in 1966 would have a purchasing power equal to about 16c in 2023 values.
The Australian two-cent coin was introduced in 1966 and was the coin of the second-lowest denomination until it was withdrawn from circulation in 1992. It is still counted as legal tender, but is subject to some restrictions, and two-cent coins are legal tender only up to the sum of 20 cents.
The Australian five-dollar note was first issued on 29 May 1967, fifteen months after the currency was changed from the pound to the dollar on 14 February 1966. It was a new denomination with mauve colouration – the pre-decimal system had no denomination with a value of £21⁄2. The first polymer version of the note was introduced on 7 July 1992. A major design update was issued on 1 September 2016, with a minor update to the signatures in 2019.
The round fifty cent coin was the highest-denomination and largest diameter coin of the Australian decimal coins, introduced in 1966. It has a nominal value of half an Australian dollar, the equivalent of five shillings in pre-decimal currency. Due to the large number minted in 1966, and the rising cost of silver, it was not made in any other year. It was replaced by a twelve-sided 50 cent coin in 1969, which retained its reverse of the Australian Coat of Arms.
Pre-decimal Australian coins arose when the Federation of Australia gave the constitutional power to Commonwealth of Australia to mint its own coinage in 1901. The new power allowed the Commonwealth to issue legal tender rather than individually through the six former British self-governing colonies of Queensland, New South Wales, Victoria, Tasmania, South Australia, and Western Australia.
The coins of the Australian dollar were introduced on 14 February 1966, although they did not at that time include the one-dollar or two-dollar coins. The dollar was equivalent in value to 10 shillings in the former currency.
The coins of the New Zealand dollar are used for the smallest physical currency available in New Zealand. The current denominations are ten cents, twenty cents, fifty cents, one dollar and two dollars. The $1 and $2 coins are minted in a gold colour, the 20c and 50c coins are silver colour and the 10c coin is plated in copper.
The shilling, informally called a "bob", was a type of silver coinage issued by the Commonwealth of Australia, that circulated prior to the decimalisation of Australian coinage. The Australian shilling was derived from the British pre-decimal sterling pound system and was first issued following the passing of the Australian Coinage Act 1909, which established Australia's first formal currency system. The shilling was issued as part of Australia's silver coinage, which included the two-shilling (florin), the sixpence and the threepence. The shilling was minted from 1910 until 1963. During this period there was one significant modification to the design of the Australian shilling, the change in its reverse design, which occurred in 1938 when the design was altered from the Australian coat of arms (1910–1936) to the visage of a Merino ram's head (1938–1963).
The Australian pre-decimal halfpenny coin, commonly known as a ha’penny, was the smallest denomination of the Australian Pound in circulation. It was a unit of currency that equalled half of a penny, 1/24 of a shilling, or 1/480 of a pound. The coin was made to be equivalent to the British halfpenny; its dimensions, composition and values were equivalent, and additionally, the two currencies were fixed at par.
