Two studies examined age differences in autobiographical reasoning within narratives about personal experiences. In Study 1 (n = 63), people completed brief interviews about turning points and crises in their lives. Older participants were more likely to narrate crises in ways that connected the experience to the speaker's sense of self, that is, to show autobiographical reasoning. This increase was primarily evident in young adulthood and midlife. In Study 2 (n = 115), adults provided written narratives about heterogeneous autobiographical experiences. Age was associated with linear increases in the likelihood of autobiographical reasoning. The results are discussed in terms of narrative approaches to self-development across the life span.