They says a trickle of migrants to Australia might be just enough to keep house prices in the black but an extra million people would help the whole economy.

“In a competitive global market, post-pandemic, it will be one thing to decide to increase skilled migration and another to achieve it,” KPMG chief economist Brendan Rynne has warned in new research.

Australia should proactively target higher intakes from countries where people tend to migrate to, like the United Kingdom and Canada, he said.

That would mean more new Australians from Poland, Ireland, Germany and the United States.

“During the pandemic, we have suffered a significant decline in foreign migrants settling in Australia such that our net overseas migration numbers have turned strongly negative – the first time since the end of World War II,” Dr Rynne said.

The latest official population data suggests net overseas migration will remain negative this financial year before slowly recovering to 235,000 per year from 2024/25.

This will leave the population around 700,000 less in 2025 than was expected before the pandemic.

Net overseas migration added about 10 per cent to Australia’s population over the more normal 10 years to 2019.

But if Australia wanted to match that 10 per cent growth trajectory in population through international migration, almost another million people would need to be added to official forecasts, Rynne said.

Just over 350,000 every year from 2022/23 to 2028/29 would be needed to achieve that 10 per cent target.

If met, Australia’s GDP would be around $120 billion higher by the end of 2028/29, for an economy 4.4 per cent larger, he said.

But Australia is not the only country to recognise the economic, social and cultural benefits, especially from skilled migrants who tend to be younger than the average worker in our ageing population.

Australia recorded the seventh largest intake of international migrants at around 820,000 people in the five years to 2019, according to United Nations data analysed by KPMG.

People mostly came from China (132,000), India (120,000), UK (56,000), Philippines (40,000), and Malaysia (31,000).

The UK and Canada, considered rival destinations to Australia, received 1.14 million and 532,000 migrants respectively between 2015 and 2019.

The Department of Home Affairs has identified 44 occupations as critical skills needed to support Australia’s response to the COVID-19 pandemic and economic recovery.

Immigration Minister Alex Hawke last updated the list in July, adding pharmacy workers to those assessed ahead of other applications.

“Prioritisation of these occupations will change as Australia recovers from the pandemic,” a Home Affairs official told AAP.

KPMG modelling suggests each additional migrant positively impacts GDP by around $130,000 per year, mostly from household consumption of about $70,000.

House prices will also get fresh support, even at the current trickle, in the regions and cities.

CommSec chief economist Craig James says house prices could rise by a further seven per cent in 2022, supported by still-low interest rates and the current rate of foreign migrants to Australia.