Strong growth figures coupled with a coalition edging ahead in the polls have sent Labor scrambling to find new ways to attack the government midway through the election campaign.
Economic growth of 3.1 per cent over the year, largely driven by exports, beat economists' expectations.
So far, so good: Turnbull
"So far so good," Prime Minister Malcolm Turnbull told reporters in Brisbane on Wednesday.
"This confirms the direction we are leading the country in, in terms of our economic plan, but there is much more work to do."
The main growth came from mining exports and a rise in financial, insurance, accommodation, food, arts and recreation services which are in demand especially among China's booming middle class.
Economy 'struggling'
Shadow treasurer Chris Bowen said beneath the figures the economy was struggling with falling domestic demand and private investment.
Living standards, or nominal income, were on "the most sustained decline in our history".
"The transition could be going a whole lot better," he said.
"For Australians who are trying to get into the labour market ... aspiring for a better future for their children, Labor has plans to deal with these things."
The latest aggregate of polls has the Turnbull government holding on to power but losing 11 seats, while the prime minister's net satisfaction rating is improving.
Corporate tax 'the wrong priority': Shorten
Before the growth figures were released, Labor leader Bill Shorten - who also campaigned in Brisbane - said the prime minister's corporate tax cut was the wrong priority for the economy.
"We're backing in middle and working class people and Mr Turnbull - his theory of economic growth is if you look after big business and look after the banks then good things happen to everyone else," Mr Shorten said.
"I don't buy that logic."
Treasurer Scott Morrison said "mum and dad" businesses would be the first to get the tax cut.
"You won't find a Google CEO amongst any of those businesses," he said.
One of the other key parts of the budget, changes to superannuation concessions, is dogging the coalition after deputy Liberal leader Julie Bishop was unable to explain the policy on radio on Tuesday.
Disgruntled coalition MPs are pushing to have the policy changed in the party room after the election.
Mr Turnbull told reporters the budget had the "full support of the government, the cabinet and the party room".
Independent senator Nick Xenophon said the election remained Mr Turnbull's to lose.
"I'd actually be quite shocked if Malcolm loses."
Mr Turnbull used his visit to Brisbane to pledge another $15 million to give start-up businesses a leg up.
Labor promised $100 million on a plan to set up 10 community power hubs to close gaps in household access to small-scale solar and wind power.
