The aim of this article is to assess the importance of a life event perspective on poverty in relation to the traditional social stratification approach. In the last decades, poverty was often seen as a life course risk associated with certain life events and less influenced by characteristics of social position. The empirical part of this article explores the importance of the life course perspective as well as the social stratification framework for the understanding of the poverty risk. The question asked is whether risky life events have the same poverty triggering effect for all social stratification groups or whether processes of cumulative disadvantage prevail at crucial life transitions. The findings, based on random effects event history analyses of the European Community Household Panel Survey, show that structural and biographical explanations of poverty do not present themselves as opposites, but they rather complement each other and their interactions provide interesting insights. The results show that the most vulnerable social groups are more affected by the poverty triggering effect of a life stage like childbirth. Clear disruptions in the life course, like job loss and partnership dissolution, affect someone’s poverty entry chance more generally, regardless of the person’s social position.