Malcolm Turnbull has seized on modelling showing his signature 10-year $48.2 billion business tax cuts will deliver a consumer benefit.
Figures by Independent Economics show for every $1 in the tax burden eased on business there will be long-term economic gains of as much as $2.39.
"If you lower the tax on investment you get more investment, if you get more investment you get more jobs," the prime minister told Alan Jones on 2GB radio on Wednesday.
Mr Turnbull attacked Opposition Leader Bill Shorten for opposing the measure.
"He must be the most left-wing anti-business Labor leader for at least a generation," he said.
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But Labor insists the cuts, to be phased in over a decade, shouldn't be the nation's priority at this time.
"The country can't afford it," opposition frontbencher Jim Chalmers told ABC radio.
He pointed to the release of Labor's 10-year economic plan later on Wednesday in Brisbane.
"If we want growth and job creation in this country it needs to be people-powered, it needs to rely on getting our training and education systems up to scratch, building the infrastructure we need," he said.
