- Australia's National Broadband Network and telecommunications company Telstra reach an A$11 billion dollar deal to allow the network to use Telstra's existing network and infrastructure.
- Australia's Commonwealth Bank agrees to pay a fine of A$700 million for failing to disclose banking transactions above A$10,000.
- At appeal, Australian actress Rebel Wilson is ordered to pay back A$4.7m that she won in damages and interest from Bauer Media Group in what was Australia's largest ever libel payout. Wilson is also ordered to pay 80% of the group's appeal costs. The case stemmed from allegations that libelous articles portraying her as a serial liar had resulted in her losing acting jobs. The Victorian Court of Appeal finds that Wilson has not proved a connection between the libel and any failure to land roles. The case prompted national discussion over potential chilling effects on legitimate journalism.
- Australian Capital Territory becomes the first Australian territory to legalize same-sex marriage while the Government of Australia launches a legal challenge in the High Court.
- Australian Prime Minister Julia Gillard, on a trip to Shanghai, China, announces that the Australian dollar is set to trade directly with the Chinese yuan, becoming the third currency to do so.