Grey Power says some who work past retirement age do so out of necessity, as superannuation is not enough for them to live on.
A report by the Salvation Army indicates more and more older people are working past retirement age.
The Growing Divide report says an increasing number of people aged over 65 are taking up low-skilled jobs to stay in the labour force.
Grey Power Federation president Roy Reid says superannuation is not enough for some people to live on.
He says a lot of people have worked in low-paying jobs all their lives, raising families and trying to pay off their home, and reach retirement age with no savings.