"Abbott knows there's big problems, but he also knows Australians punish politicians who seem to mess with their financial security," said David Burchell, a political analyst at the University of Western Sydney.
Under superannuation, employers are required to pay 9.5 per cent of a worker's wage into a fund that usually isn't accessed until retirement. People aged under 50 can channel A$30,000 a year into the fund, including employer contributions, rising to A$35,000 for the over 50s, with every dollar taxed at 15 per cent. This compares with income taxes that rise as high as 45 per cent.
Income generated in the fund is also taxed at 15 per cent and is tax free when drawn in retirement.
The top 10 per cent of income earners receive more than a third of tax breaks while the bottom 10 per cent gets nothing, according to the Australia Institute, a Canberra-based research center. The concessions cost the government about A$30 billion a year in lost revenue, the Canberra-based think tank says.
The system is "simply unaffordable and entirely inequitable," said Richard Denniss, the institute's executive director. "Rapacious" fees charged by fund managers - estimated by the Grattan Institute at A$20 billion a year - further undermine the system, he said.
While the nation's A$1.93 trillion pool of superannuation savings is the fourth largest in the world, the system is yet to make a significant dint in the number of people drawing the state pension.
Critics says that's down to loose means testing and because people retiring now have only been contributing to superannuation for a part of their working life. About 59 per cent of retirees receive the full-rate Age Pension.
Treasurer Joe Hockey aims to raise the nation's retirement age from 65 to 70, the highest in the world, by 2035. Bloomberg