Bolstered by higher interest rates, the banking sector has seen the best profits in 12 years for the January to April period.
Approved in committee, the proposal would seek to better inform clients of membership programs and require banks to offer a credit card option without membership fees.
Higher production was fueled by rising exports.
There is concern that the country's crisis could spill over to other economies in the region.
The current turbulent scenario puts at risk the advance of economic reforms, especially pension reforms, which are considered key to controlling government spending and debt.
The Brazilian group admitted paying bribes to politicians in order to obtain advantages.
Report author the TMF Group cites the "common practice of levying three layers of taxation, at federal, state and municipal level."
Banking authorities are enlisting the efforts of the public and private sectors to adopt a risk-based approach to halting illegal bank activity.