This paper analyzes whether Brazil is experiencing a religious secularization process using data from Brazil Religion Survey conducted in 2007. Models of discrete choice are estimated to understand which individual attributes affect disaffiliation, disbelief and lack of religious practice, therefore confirming or disproving secularism hypotheses. Estimations confirm some hypotheses of the theory, for example, that having liberal opinions concerning moral and social issues is positively associated with secularism, and that lower income levels result in lower chances of disaffiliation. In addition, the profile of non-religious people, non-believers and those who do not practice religion is similar. Therefore, it is possible to affirm that there is secularization in Brazil.