This research proposes that employees' use of emotion regulation strategies determines their perceptions of fairness in interactions with clients, which in turn influences their emotional exhaustion. Based on social exchange theory, and models of self-control, the investigation tested whether: (1) the type of emotion regulation strategy employees use to meet the emotional demands of their job role partially influences their perceptions of distributive justice, and (2) these perceptions mediate the relationship between emotion regulation and emotional exhaustion.To test this, a longitudinal field survey study of a sample of primary care workers (General Practitioners and Nurses; N = 233) was conducted. Findings showed that the relationship between emotion regulation and emotional exhaustion, was mediated by perceptions of distributive justice.A bootstrapping single mediational analysis showed a significant indirect effect of surface acting and deep acting on emotional exhaustion through distributive justice when interindividual differences at T1 and when intra-individual changes between T1 and T2 were considered. Deep acting indirect effects were not significant for intra-individual changes The findings indicate that employees´ perception of distributive justice has implications for understanding the impact of emotion regulation on well-being.