By Andrew Brown in Canberra

Renters would be able to save more than $2000 a year, One Nation claims, under its proposal to cut immigration, as the coalition defends a lack of publicly available costings.

Modelling by Pauline Hanson’s party claims plans to send net overseas migration into negative territory for three years would reduce rent inflation by 6.5 per cent for the average rental.

This would be a saving of $54 a week, or $2818 a year, while those on higher-end rents would save $83 a week or $4340 annually.

The modelling, which was carried out in-house by One Nation, was based on median dwelling rents of $705 as of June.

Under One Nation policy, more people would leave Australia than arrive during a three year period, before net overseas migration would return to 130,000 people a year.

That compares with the 225,000 Labor has targeted and 160,000 as unveiled in the coalition’s migration policy on Tuesday.

“Families are competing with hundreds of people for rental accommodation while more of their wages disappear into rent,” Senator Hanson said.

“We will reduce the number of temporary migrants and unlawful non-citizens by more than 750,000 over those three years, giving housing and essential services breathing space.”

The modelling was released the day after the coalition released its long-awaited migration policy.

Should the coalition form government, net overseas migration would be lowered to 100,000 people for two years, before rising to 160,00 in subsequent years.

Australia’s temporary visa holders would be reduced by 650,000 people over four years, while temporary graduate visas would be scrapped under the changes.

Student visa numbers would also be reduced from 528,000 to 456,000.

Opposition Leader Angus Taylor said the impact to the federal bottom line was budget neutral, with modelling carried out by the independent Parliamentary Budget Office.

But the Liberal leader has hosed down calls for the cost of the policy to be made public.

“We need a cut to the numbers and an improvement in the standards,” he told Nine’s Today program.

“The reason you can cut the numbers and still have a balanced budget outcome, and strong for the economy, is because we’ve been bringing the wrong people into the country.”

He later dismissed the One Nation modelling on rental costs.

“I’m not sure what One Nation’s plan is, I hear a different set of numbers every second day,” he told reporters in Sydney.

“It’s very hard for me to comment on a policy when it keeps changing.”

News all day, every day at CityNewsQBN.com.au.