Opposition Leader Tony Abbott revealed on Thursday evening that he would not be providing final costings and a full budget impact statement until deep into the last week of the campaign.
"Every policy that we put out will be costed and funded, [but] we intend to keep putting out policies right up until the last week of the campaign," he told the ABC's 7.30 program.
"So when all our policies are out, we will be able to tell you exactly how much we're going to spend, exactly how much we're going to save, and exactly what the overall budget bottom line will be and how much better it will be than under the Labor party."
Mr Abbott said the Coalition would not wait until the very last day of the campaign to detail its costings, saying when people voted they would be ‘‘under no doubt’’ about how a Coalition government would pay for its promises.
The Coalition has committed to $30 billion in new spending or foregone revenue, but has only detailed $17 billion in savings.
Mr Abbott said ‘‘I accept that we do have a savings challenge,’’ but said this shortfall would be ‘‘well and truly filled before polling day’’.
‘‘I absolutely accept that there’s more to say and we will level with the public,’’ he said.
Mr Abbott criticised Labor’s recent increase in tobacco excise as ‘‘yet another tax hike from a government addicted to tax hikes,’’ but admitted he might keep it if the Coalition won the election.
‘‘There is a budget emergency and there is a number of things that this government has done recently which we don’t like ... but under the circumstances we might have to accept.’’
Mr Abbott said the Coalition might also retain Labor’s levy on bank deposits, but he said it would reverse Labor’s changes to fringe benefit tax arrangements for employer-provided cars.
He vowed there would be ‘‘no overall increase in the tax burden, whatsoever’’.
He admitted the GST would be considered as part of its planned tax review, but said the Coalition would not change it.
‘‘The GST is not going to change, full stop, end of story,’’ he said.