This paper deals with the problem of characterizing the content of experience as either conceptual or non-conceptual in Kant’s transcendental philosophy, a topic widely debated in contemporary philosophy. I start out with Kant’s pre-critical discussions of space and time in which he develops a specific notion of non-conceptual content. Secondly, I show that this notion of non-conceptual intuitional content does not seem to match well with the Transcendental Deduction. This incongruity results in three interrelated problems that are inherent to Kant’s Transcendental Deduction in the Critique: the ‘Independency Disagreement’, the ‘Conceptualism Contradiction’ and the ‘Intuition Inconsistency’. These three problems derive from apparently contr...