The Organisation for Economic Cooperation and Development in its latest Economic Outlook expects the Australian economy to contract by 3.8 per cent in 2020.

"The OECD has upgraded its outlook for the Australian economy by 0.3 percentage points following the federal budget released on October 6," Mr Frydenberg said on Wednesday.

"This compares favourably to an average fall of 5.5 per cent across all advanced economies."

The Paris-based institution is also forecasting the Australian economy will grow by 3.2 per cent and 3.1 per cent in 2021 and 2022 respectively.

The report came ahead of Wednesday's national accounts that are expected to show Australia emerging from its first recession in almost 30 years.

The OECD expects the easing of Victoria's lockdown and strong fiscal support will boost economic growth in the near term.

"The infrastructure-led economic recovery in China will help sustain commodity exports and mining investment," the OECD said.

"(But) any additional escalation in geopolitical tensions with China may undermine export growth."

It said a key risk to the outlook would be a fall in business and consumer confidence, as reduced government support is accompanied by a rise in business liquidations and unemployment.

"On the upside, a faster-than-expected phasing out of border restrictions would boost the recovery in services exports," it said.

The OECD has urged Australia not to withdraw its fiscal and monetary policy support until the economic recovery is "well entrenched".

Shadow treasurer Jim Chalmers said the OECD has joined the Reserve Bank, International Monetary Fund, Deloitte Access Economics and other prominent economists who have called for more to be done, not less.

"Scott Morrison's decisions to withdraw support too soon and exclude more Australians from incoming support will exacerbate the economic damage being inflicted on those who were hit hardest by the virus outbreak and left behind by initial policy and fiscal responses to the crisis," he said.

The Reserve Bank at its final board meeting of the year on Tuesday reiterated it is unlikely to raise the cash rate for three years.

The OECD predicts the Australian unemployment rate will rise to 7.9 per cent in 2021 compared with 6.8 per cent this year, and still be at 7.4 per cent in 2022.

Both the Australian Treasury and the Reserve Bank are forecasting the jobless rate to peak around eight per cent this year.

Australian Associated Press