In an article for the website Super Review, Jason Spits talks about a Catch Up concessional contribution cap that is meant to aid those workers who have been out/away from work for long. Such a cap may help workers compensate for the shortage in their Super accumulation.
There are men and women who have to take the hard route of remaining jobless to raise their families. In prolonged absence of Super guarantee contributions, their retirement nest egg thins out. To add to the woe, they find that the upper cap for annual concessional contribution is $30,000 ($35,000 for those aged above 49), which is not enough to cover for the years they have lost. This is where, says Spits, additional concessional contribution can help.
You can read the original article here.