Jim Chalmers slams drastic push to slash immigration - and reveals why he thinks it won't help the housing crisis

Treasurer Jim Chalmers says the Coalition's proposal to slash Australia's migration intake by 25 per cent could cost the economy tens of billions of dollars.

Opposition leader Peter Dutton used his budget reply speech on Thursday to announce a crackdown on migration and foreign property investment as part of his solution to fix the housing supply crisis.

Under the Coalition's proposal, the number of permanent visas granted each year would be slashed from 185,000 to 140,000, with a targeted reduction in international student numbers.

Dr Chalmers said the measure would 'devastate' the economy and exacerbate already crippling skill shortages affecting the construction and healthcare sectors.

'It will cost the economy billions of dollars, but even the kinds of estimates that you will see are conservative because it's not possible to fully capture the damage that Peter Dutton would do to the skills base of this country, to our hospital, on our building sites,' Dr Chalmers told the ABC on Sunday.

Treasurer Jim Chalmers says the Coalition's proposal to slash Australia's migration intake by 25 per cent could cost the economy tens of billions of dollars - but has admitted it may help ease the country's housing crisis

Treasurer Jim Chalmers says the Coalition's proposal to slash Australia's migration intake by 25 per cent could cost the economy tens of billions of dollars - but has admitted it may help ease the country's housing crisis

Opposition leader Peter Dutton used his budget reply speech on Thursday to announce a crackdown on migration and foreign property investment as part of his solution to fix the housing supply crisis (stock image)

Opposition leader Peter Dutton used his budget reply speech on Thursday to announce a crackdown on migration and foreign property investment as part of his solution to fix the housing supply crisis (stock image)

'He's got at least a $40bn hole in his budget by our estimation but it will also cost the economy billions of dollars and that's before you factor in the damage he's doing to the skills base that we need to build the future.'

But pressed on whether cutting migration would help alleviate the housing crisis, Dr Chalmers admitted: 'At the margins at best.' 

Labor, meanwhile, plans to halve the net overseas migration rate to 260,000 and slightly reduce the permanent migration intake. 

'The best way to wind down this migration program is to do it in a careful and methodical way. I don't think you can describe what Peter Dutton is proposing as either considered or methodical,' Dr Chalmers added.

'We've struck the most effective and most appropriate balance which recognises that we need to get that net overseas migration number down and the permanent number down a little bit as well. But we can do that in a way that doesn't smash our economy and doesn't smash the skills base of our economy.

He added that cutting migration could not be a substitute for 'building more homes and that's why that's one of our main focuses in the budget'.

The Treasurer argued that the Coalition's plans to ban foreign home buyers from purchasing existing properties for two years would have little impact in providing immediate housing relief.

He said recent data showed of the fewer than 5000 homes purchased by foreigners, around 1300 of them were classified as established homes.

'This will make nowhere near the difference that he is claiming that it will,' he said.

Dr Chalmers said the measure would 'devastate' the economy and exacerbate already crippling skill shortages affecting the construction and healthcare sectors

Dr Chalmers said the measure would 'devastate' the economy and exacerbate already crippling skill shortages affecting the construction and healthcare sectors

Earlier the leader of the Nationals, David Littleproud, suggested regional universities that rely on high numbers of overseas students would be granted a reduced cap on foreign students under the opposition's migration plan.

He said if re-elected the Coalition would revive a dedicated visa towards agriculture to redirect more skilled migrants from metropolitan cities to rural towns.

Asked how it would be possible to increase numbers of migrants moving into the regions under a drastically reduced migration target, Mr Littleproud said it would be possible if 'tough' decisions were made in other areas of the economy.

'What you do is you make a priority of where the necessity is in the economy and where those pressure points are,' he told Sky News.

'It is about making the tough decisions that prioritise where the economy needs the support to continue to grow, and particularly in the regions that where we want to be very clear, that we don't want to see the regions suffer because of exacerbated problems in capital cities.'