Deputy Prime Minister Wayne Swan said on Friday that the Liberal Party needs to adhere on today's 5:30pm deadline of submission for their spending commitments but the opposition refused to budge, accusing instead the Treasury as the source of the leak on their policies.

The coalition said that unless the federal police look into their allegations, they may have to opt for an independent accounting firm to scrutinise their policies instead of submitting for federal verification as mandated by the Charter of Budget Honesty.

The Sydney Morning Herald had earlier published a confidential analysis showing that the opposition overshot its policies by $800 million, which the paper said would be the same amount of saving the coalition could garner once the Labor-sponsored $43 national broadband network is scuttled.

The federal government must meet the legislated deadline too, which was introduced during the Howard administration, and it is likely that the Labor party would not make it either as Mr Swan asserted that much of its policies would come from the Treasury and Finance departments.

He admitted that the policies could only be submitted on the day before the federal elections.

Mr Swan, however, rechanneled the attention to the opposition's stubborn stand of dodging the process as he revealed that the coalition had so far submitted a mere ten percent of the estimated $30 billion of its spending policies.

On the other hand, the federal treasurer said that the Labor government would provide a further $300 million support to the apprenticeship bonus it introduced during the global financial crisis as he gave assurance that the initiative would be funded by the current budget.

On its part, the opposition maintained that they were not using the leak issue as an excuse to circumvent the process mandated by the government as opposition finance spokesman Andrew Robb asserted that "we have got every incentive to have our policies out there fully costed and fully verified."

Still, Mr Robb stressed that the leak issue must be properly addressed by the federal police as he warned that doing otherwise "could potentially lead to officials in costings who would be willing to aid the Labor Party and could seriously compromise the way in which costings are conducted."