Prime Minister Julia Gillard will likely endorse a deal to give developing nations a greater role in the IMF, after signing a uranium deal with Russia at the G20.
Ms Gillard and other G20 leaders are expected support the International Monetary Fund reforms when the summit wraps up on Friday.
But tougher questions about exchange rates and finding a way to progress the Doha round of free trade talks are not likely to be resolved.
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The meeting comes as the Prime Minister has stepped up her attack on Australian banks over interest rates.
She says the government will make changes to ensure greater competition and make it easier for customers to vote with their feet.
"We want to better empower consumers to move away from banks when they are unhappy with their banking arrangements and believe they are being ripped off," she told a G20 business forum in Seoul on Thursday.
ANZ boss Mike Smith, who attended the forum, said the banking sector was competitive and banks' costs were rising.
The PM also announced a new deal to sell uranium to Russia for nuclear power generation.
Ms Gillard met Russian President Dmitry Medvedev on the sidelines of the G20 leaders summit to seal an agreement on nuclear energy.
Australian miners have been able to sell uranium to Russia since 1990 but only to be processed in that country on behalf of third countries and not for nuclear power in Russia itself.
The PM says the deal will increase export opportunities and create jobs for Australia's uranium suppliers and it consolidates Australia's position as a reliable provider of energy resources.
Meanwhile, Ms Gillard will use the G20 leaders meeting on Friday to push for a new global framework for economic growth and better management of current accounts and IMF reforms, which will allow nations such as China a greater role.
Australia, which has low government debt, is expected to get special treatment under financial system reforms intended to prevent a repeat of the global crisis.
The prime minister will also champion development issues, such as food security and improving infrastructure, with the G20 expected to agree to a development framework for shared growth and action to support this goal.
On Friday evening, she will travel to Japan for the start of the Asia Pacific Economic Cooperation leaders meeting to be held in Yokohama on Saturday and Sunday.
