Westpac was founded in 1817 and was the first bank to be established in Australia. In 1982, with the merger of the Commercial Bank of Australia, it changed its name to Westpac Banking Corporation. On 23 August 2002, Westpac was registered as a public company limited by shares under the Australian Corporations Act (2001).
In December 2008, Westpac merged with St George Bank Limited.
Westpac provides a broad range of consumer, business and institutional banking and wealth management services through a portfolio of financial services brands and businesses.