In this essay I take issue with the problem of institutional corruption. A number of scholars have recently established a discontinuity thesis, according to which an institution may be corrupt even if its members are not. Against this view, I defend a continuity thesis and argue that institutional corruption can always be traced back to the blameworthy corrupt behavior of individual agents. Certain instances of corrupt behavior spread their effects and tip in a way that subvert (and not simply violate) the public rules that govern an institution. This occurs, I argue, following either summative, morphological, or systemic modalities. I show that such a taxonomy of institutional corruption is useful for the purpose of disentangling and understanding the variety of mechanisms that generate the phenomenon. Most importantly, the taxonomy allows for a more nuanced way of attributing responsibility for political corruption, including collective responsibility. I conclude that a continuity approach offers the tools for diagnosing institutional corruption, but also facilitates the task of formulating answers to political corruption, both from a backward-looking and from a forward-looking perspective.