Based on the specific literature concerning the period of 1985 - 2008, this article attempts to look again at how SUS financing at the time when the 1988 Constitution was launched, was understood. In addition, the article presents the conflicts which took place during the first twenty years of SUS existence, as well as demonstrating the uncertainty of its financing. It also identifies the different proposals to apply its costs, arguing that, up to the present time, a solution that is compatible with a universal and complete health policy has yet to be found.
SUS financing; Social security; Universal health policy