Pauline Hanson has unveiled One Nation’s most aggressive migration plan in years, promising to cut Australia’s temporary migrant population by more than 750,000 over three years and push net overseas migration into negative territory before imposing a long-term ceiling of 130,000.

The policy places immigration squarely at the centre of One Nation’s campaign against Labor and the Coalition, with Hanson arguing Australia has allowed population growth to outrun housing, infrastructure and essential services.

“I know Australians are doing it tough,” Hanson said on Monday.

She pointed to rental competition, hospital capacity, home ownership and stagnant living standards as evidence that the migration system required a major reset.

The plan would attempt to reduce the number of temporary migrants living in Australia by more than 750,000 over three years, bringing that population back towards levels recorded in 2017.

International students and temporary graduate visa holders would bear a large share of the reduction.

One Nation also wants to cut the number of people on bridging visas, restrict the ability of temporary skilled workers and some students to bring family members, tighten visa switching and pursue people who no longer have a lawful right to remain in Australia.

The party says people unlawfully in Australia would be given three months to leave voluntarily.

Those who complied could potentially apply for a visa again later, while those who failed to depart would face removal and, under One Nation’s proposal, a lifetime ban on returning.

The Pacific Australia Labour Mobility scheme and parts of the temporary skilled migration system would remain because of their importance to agriculture and other labour-shortage sectors.

Working holiday-makers have also been treated more favourably by One Nation than international students during the party’s recent migration debate.

Hanson says the broader objective is to make net overseas migration negative for the first three years before settling at no more than 130,000 annually.

That is a radical departure from current policy.

But it also requires some statistical explanation.

Net overseas migration, or NOM, is not the number of visas issued and it is not the number of temporary visa holders living in Australia at any single point in time.

It measures the difference between people added to Australia’s resident population through overseas migration and residents subtracted because they leave for an extended period.

The Australian Bureau of Statistics generally counts a person as a migrant when their travel behaviour means they are in or out of Australia for at least 12 months over a 16-month period.

A government can therefore reduce the stock of temporary visa holders without reducing NOM by precisely the same number.

Some temporary residents will leave and reduce NOM.

Others may have arrived too recently or may not meet the statistical definition.

Some can transfer between temporary visas, become permanent residents or be replaced by new arrivals.

That distinction matters because One Nation’s headline promise combines a stock target — removing more than 750,000 people from the temporary migrant population — with a flow target of negative net overseas migration.

The party has not yet released detailed public modelling showing exactly how annual arrivals and departures would interact to achieve both goals.

That is the gap Liberal frontbencher Andrew Hastie seized on when responding to the policy.

Hastie agreed Australia’s immigration level was too high but said One Nation needed to explain what its proposal would actually do to the economy, government finances and individual migrants.

“What we don’t know about Pauline Hanson’s policy is the economic, the fiscal, and the human impact it will have,” he said.

He said posting a headline target was not a substitute for costings and modelling.

The Coalition’s own policy is to reduce net overseas migration and tie it more closely to housing construction.

Hastie said the opposition wanted annual migration below the number of homes Australia built, arguing population growth should not continually add more demand than the housing system can absorb.

The Coalition has not, however, announced a final fixed NOM ceiling.

Labor is also already reducing migration from its post-pandemic peak.

The latest official ABS population figures show annual net overseas migration was about 301,000 in the year to December 2025.

That was down from the extraordinary post-border-reopening surge and 8.9 per cent lower than a year earlier.

The government’s 2026–27 Budget forecasts NOM at 295,000 for 2025–26, falling to 245,000 in 2026–27 and 225,000 in 2027–28.

Those numbers remain well above One Nation’s proposed long-term ceiling.

The party’s new policy has therefore created a clear spectrum in federal politics.

Labor wants a gradual reduction.

The Coalition wants a larger cut linked to housing supply but is still debating the detail.

One Nation is proposing a sharp, deliberate contraction in the temporary migrant population.

Hanson’s case begins with housing.

Australia experienced an extraordinary migration surge after international borders reopened following the pandemic, at precisely the time housing construction struggled with labour shortages, high materials costs and planning constraints.

The result was a rapid increase in housing demand while supply responded slowly.

Economists disagree over how much of the housing crisis can be attributed to migration, but there is little dispute that adding hundreds of thousands of residents increases immediate demand for accommodation.

Hanson argues governments have used migration to enlarge headline GDP while allowing per-capita outcomes to deteriorate.

“A larger economy on paper means nothing if Australians are poorer per person and cannot afford a home, find a hospital bed or get ahead,” she said.

That argument has become increasingly influential well beyond One Nation.

Labor now accepts migration became too high after the pandemic.

The Coalition is promising significant reductions.

Labor state premiers have also pressed Canberra to manage population growth more carefully, although some have simultaneously warned against cuts that deprive their states of required workers.

The argument becomes harder when the discussion shifts from aggregate population numbers to individual visa categories.

More than 528,000 people were in Australia on student visas in recent figures cited by the ABC, up from about 384,000 in 2017.

The number on bridging visas has risen even more sharply, from about 130,000 in 2017 to roughly 413,000 in 2026.

One Nation sees those categories as obvious targets.

The party wants fewer international students, particularly at the lower-quality end of the education market, fewer graduates remaining after study and fewer people moving repeatedly between visas while attempting to extend their stay.

It has proposed bringing the international student population towards earlier levels while preserving exceptions for some high-value postgraduate study.

There is a substantial integrity argument for tightening parts of the student system.

Successive governments have acknowledged that some education providers have been used primarily as migration pathways rather than for genuine study.

Labor has already closed courses, tightened English-language and integrity requirements and attempted to reduce visa hopping.

But international education is also a major Australian export industry.

Universities rely heavily on overseas fee revenue, and international students support employment and consumption well beyond campus.

A rapid fall in enrolments would therefore impose real costs as well as reduce population pressure.

The same trade-off exists in skilled migration.

Businesses, hospitals, aged-care providers and regional employers have warned Canberra that Australia does not currently train enough workers to immediately fill every shortage.

Health Minister Mark Butler has argued One Nation’s numbers could leave hospitals, disability services and aged-care facilities without enough staff.

Industry groups have issued similar warnings over construction, agriculture, tourism and hospitality.

The National Farmers’ Federation has been particularly concerned about restrictions affecting the seasonal and mobile labour used in agriculture.

The Australian Chamber of Commerce and Industry has warned that slowing working-holiday visas is already worsening staff shortages in pubs, accommodation businesses, tourism operations and farms.

Those organisations are advocating access to workers they say cannot currently be sourced in sufficient numbers domestically.

There is no evidence in their public statements for the stronger claim that farming and business groups want high migration specifically to suppress Australian wages.

Critics of the business lobby can certainly argue that a larger labour supply can weaken workers’ bargaining power in some markets.

But that is an economic argument, not the stated purpose business groups have given for opposing visa cuts.

Hanson’s answer is that decades of reliance on imported labour have allowed employers and governments to avoid training enough Australians.

She says a reduction in access to overseas workers would force higher investment in local skills and wages.

That is plausible in some occupations.

It is much harder in others.

A wage increase can attract more people into aged care, for example, but it cannot instantly produce registered nurses, doctors, engineers or qualified tradespeople whose training takes years.

That is why the speed of any migration reduction matters as much as its final level.

A gradual decline gives universities, hospitals, builders and employers time to adjust.

A sudden contraction creates a greater risk that labour demand remains while the workers disappear.

One Nation says Canada provides evidence that a country can reverse a temporary-migration surge without destroying its economy.

Canada has indeed tightened rules governing students and temporary residents after its own rapid post-pandemic population growth.

But translating another country’s experience directly to Australia is difficult because visa categories, labour markets, housing supply and economic structure differ.

Housing rents can also respond to many factors simultaneously, making it unsafe to attribute every improvement to one migration policy.

Another One Nation proposal would suspend migration from countries subject to Australia’s highest-level “do not travel” advice, subject to exceptions including situations principally caused by foreign invasion.

The party announced that security policy separately in August.

It argues that if the Australian government considers a country unsafe for Australians to visit because of terrorism, violence or institutional collapse, migrants from those countries should face a presumption against entry.

That proposal raises different issues from migration volume.

Smartraveller advice is designed to warn Australian travellers about risks they may face overseas.

It is not designed as an assessment of whether every citizen of the relevant country poses a risk to Australia.

A country can receive “do not travel” advice precisely because its residents are themselves victims of war, terrorism or political repression.

One Nation has attempted to account for that by proposing exceptions, but the policy would still represent a major shift away from individual visa and security assessment towards restrictions based partly on conditions in a person’s country of origin.

The enforcement component is also likely to prove legally and practically complex.

Australia does have people who remain after visas expire or exhaust their lawful avenues to stay.

The government already has powers to detain and remove unlawful non-citizens.

But removing a person can require travel documents, cooperation from foreign governments, resolution of protection claims and compliance with Australian legal obligations.

A three-month ultimatum does not make those constraints disappear.

One Nation’s policy nevertheless represents a major political development because the party had spent weeks struggling to explain its own migration position.

In August, different One Nation figures gave inconsistent accounts of whether the party wanted net migration at zero, negative or around 130,000.

Hanson was even heckled at anti-immigration events by activists who believed the party had retreated from its harder line.

The new announcement is clearly designed to resolve that problem.

It promises a period of contraction first, then a 130,000 ceiling.

Whether the arithmetic and economic consequences withstand scrutiny is now the central question.

Hanson expects fierce opposition.

She has already dismissed warnings from what she calls vested interests and elite economists, arguing government policy should prioritise living standards rather than maximising aggregate economic growth.

Her opponents say the costs would be felt not by economists but by patients, older Australians, farmers, builders and regional communities that depend on migrant workers.

Both arguments contain an important truth.

Migration adds demand for housing and public infrastructure.

It also adds workers, taxpayers and consumers.

Reducing it can relieve some pressures while worsening others.

The serious policy question is therefore not whether migration has costs or benefits.

It has both.

The question is whether One Nation has identified a transition Australia could actually implement without causing larger problems than the ones it is trying to solve.

A 750,000 reduction is large enough that slogans are no longer sufficient.

Hanson has now supplied the political destination.

The next test is whether her party can produce the modelling, timetable and workforce plan required to show how Australia gets there.