Low-paid workers miss out in 'out-of

An "out-of-date" tax rule older than Gangnam Style will cost lower-income workers $500 million in retirement savings this year.

That's according to the Super Members Council, adding to growing calls to lift the Low Income Super Tax Offset (LISTO) - designed to boost superannuation for some of the lowest-paid Australian workers.

Anyone earning up to $37,000 receives a refund of up to $500, which goes into building their retirement nest egg.

When it was introduced it applied to all workers in the lowest two tax brackets, but has remained frozen at the same rate for 13 years despite inflation and tax bracket changes.

It means people earning between $37,000 to $45,000 aren't able to get the rebate, despite those workers now falling into the second-lowest tax bracket.

Some 1.2 million work