The International Monetary Fund's upgrade of the Australian economic outlook confirms the nation has outperformed all major advanced economies over the past year, Treasurer Josh Frydenberg says.
The IMF is expecting the economy to grow by 4.5 per cent this year and 2.8 per cent in 2022.
In January, the Washington-based institution expected the economy to grow by 3.5 per cent in 2021.
"What this report confirms is that we've outperformed all major advanced economies over the last year," Mr Frydenberg said on Wednesday.
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In it latest outlook, the IMF is also projecting a stronger recovery for the global economy in 2021 and 2022 compared to its previous predictions made in January.
The world economy is expected to grow by six per cent in 2021 and 4.4 per cent in 2022, compared with 5.5 per cent and 4.2 per cent respectively previously.
But the fund warns a high degree of uncertainty surrounds these projections, with many possible downside and upside risks.
"Much still depends on the race between the virus and vaccines," it says.
"Greater progress with vaccinations can uplift the forecast, while new virus variants that evade vaccines can lead to a sharp downgrade."
Despite the Reserve Bank's efforts to fuel the economy through record low interest rates, the IMF expects Australian inflation to be still below the central bank's two to three per cent target band at the end of next year.
It forecasts the rate of inflation to be 1.7 per cent this year and 1.6 per cent in 2022.
Reserve Bank governor Philip Lowe reiterated on Tuesday he does not expect to lift the cash rate from its record low 0.1 per cent until 2024 and when he anticipates inflation will be comfortably in the target band.
The IMF also does not expect Australia's unemployment rate to be comfortably below six per cent until next year, forecasting a rate of 5.5 per cent in 2022.
The jobless rate did unexpectedly dip to 5.8 per cent in February, but there is now uncertainty about the employment outlook after the government's JobKeeper wage subsidy program came to an end last month.
NEW IMF FORECASTS FOR AUSTRALIA:
* Economy to grow faster than earlier expected: 4.5 per cent in 2021, 2.8 per cent in 2022
* Unemployment to decline: 6 per cent average 2021, 5.5 per cent 2022
* Inflation to remain subdued: 1.7 per cent 2021, 1.6 per cent 2022