This mixed-method study assessed the nature of language brokering and the relationship between language brokering and prosocial capacities in a sample of 139 college students from ethnically diverse immigrant families. The prosocial capacities of interest were empathic concern and two forms of perspective-taking: general perspective-taking (understanding the perspectives of others) and transcultural perspective-taking (understanding of divergent cultural values). As predicted, structural equation modeling identified a significant pathway from language brokering for parents to skill in transcultural perspective-taking. We illustrated this pathway with a qualitative case study. We also identified a significant bidirectional relationship between language brokering for others (e.g., other relatives, friends) and empathic concern. The experience of language brokering for others develops empathic concern; at the same time, those with higher levels of empathic concern broker more for people outside their immediate families.