Substantial social stratification research conceptualizes education as a series of standard transitions from one stage to the next, such as from high school to college. Yet less research examines mandatory transitions within each educational stage, which we call "intermediate educational transitions." In this article, we examine a crucial intermediate transition in U.S. higher education, shifting from an undeclared to a declared major by major declaration deadlines, to provide a novel perspective on educational transitions. Bridging theoretical approaches from symbolic interactionism, social stratification, structural functionalism, and neo-institutionalism, we argue that successful major declaration transitions depend on students' individual-level alignment between socially structured actions and culturally informed goals and organization-level alignment between organizational intentions and organizational actions. We use longitudinal interview data paired with 4.5 years of administrative records to assess this argument, finding that both individual- and organization-level alignment contribute to whether students experience seamless, stalled and restarted, or persistently stalled major declaration transitions. We further find that access to compensatory college organizational support determines whether stalled students can restart their major declaration trajectories. These findings indicate that colleges and universities can help to mitigate inequality in intermediate transitions by providing timely, high-quality support.