In the debate about Kant's conceptualism or non-conceptualism the relation of Kant's philosophy with that of his predecessors is systematically ignored. My project aims to fill this gap in the literature. Accordingly, I will consider the fundamental question at the heart of this debate in light of the fact that the concepts which are crucial for answering it are through and through shaped by Kant's engagement with the theories of his predecessors, and especially the Wolffians. In order to do this, I will first draw a general scheme of the various sub-issues in which this question is factually divided, and individuate the key concepts for answering each one of them. In the second, I am going to provide an analysis of these concepts – and consequently solve the issue – in light of how the concept in question emerges from Kant's confrontation with the philosophical scenario of its time. The final result will be an articulate picture of the answer to the question of whether Kant is a conceptualist or not.