Supervisors are usually older, more educated, and longer tenured than their subordinates, a situation known as status congruence. However, subordinates are increasingly experiencing status incongruence, in which their supervisors lack these traditional status markers. We examine how status congruence versus incongruence interacts with subordinates' judgments of their supervisors' competence to influence subordinates' perceptions of the promotion system. Grounded in system justification theory, we predicted and found that when the supervisor was relatively less competent, status congruence led to perceptions of greater promotion system fairness (Study 1) and promotion system acceptance (Study 2), particularly under conditions known to heighten system justification motivation (a low sense of power in Study 1 and low system escapability in Study 2). Moreover, to triangulate on the role of system justification, we created an implicit measure of the construct and showed in two additional studies (3a and 3b) that participants engaged in more system justification under conditions in which our theoretical rationale suggested they would. Theoretical and practical implications are discussed. (PsycInfo Database Record (c) 2023 APA, all rights reserved).