The big banks are pushing ahead with calls to wind back financial planning rules despite the warnings of consumer groups that investors, particularly retirees, will be exposed to bad financial advice.

It is understood representatives of the big banks will tell a Senate economics legislation committee hearing on Thursday that winding back the future of financial advice reforms will not affect consumers.

They will focus on a Deloitte report filed with their original submission that compares financial advice laws in Australia with comparable countries to argue that Australia already has sufficient protections in place.

The Financial Services Council, which lobbies on behalf of the big banks, would not comment before the hearing.

The Australian Bankers' Association said it would seek a softening of the wind back by asking that several ''technical amendments'' be made to the original reforms.