Labor has come under fire for ducking questions on tax, but says its focus will be on making multinationals pay their fair share.
Labor leader Anthony Albanese on Friday was asked on Nine's Today show several times whether he would increase taxes to pay back debt, which under the coalition government is heading towards $1 trillion.
Mr Albanese said Labor would be announcing its multinational tax evasion policy during the campaign, as well as stopping "the waste and rorts" of the Morrison government.
But he declined to say what other changes could be made.
Prime Minister Scott Morrison, campaigning in the Sydney seat of Lindsay on Friday, said Labor had no answer on taxes.
"It's a very simple question to answer," Mr Morrison told reporters.
"There are no increases in taxes or new taxes in the budget we handed down this week and there will not be any under the government that I have led and will continue to lead."
Mr Morrison, who is widely expected to trigger a May 14 election this week, said it was important to scrutinise Labor's commitments.
"Australians will make an important choice and you've got to be able to bear up to that scrutiny," he said.
He said Labor hoped to "skate in under the radar" by limiting its policy platform during the campaign.
"He is a blank page, not a small target, so I'm going to give Australians an opportunity to have a close look," Mr Morrison said of the Opposition leader.
Mr Albanese told reporters in Parramatta, where he campaigned alongside new candidate Andrew Charlton, the prime minister should call the election immediately.
"Enough of the pantomime - call the election," he said.
"Let the Australian people decide.
"This business of not calling the election, so that he can use taxpayers' money for ads, is just yet the latest example of a prime minister who thinks that taxpayers' money is the same as Liberal Party money."
The government is able to roll out millions of dollars in advertising of budget initiatives until the election is called - a strategy it used after the 2019 budget.
At least three campaigns have been approved, covering health and skills.
