Mexicans are the largest immigrant group in the United States and are ageing rapidly. Data support that many return to Mexico due to economic factors such as employment. Few studies have investigated if older immigrants return to Mexico for different reasons than younger immigrants. Using the Mexican Health and Aging Study (N=952), we examine whether Mexican immigrants in the United States who returned to Mexico at age 50 and older report different reasons for returning than those who returned at younger ages. Few immigrants (regardless of age) returned to Mexico for economic reasons. The most commonly reported reason for returning to Mexico for both groups was missing family. However, the odds of listing illness over missing family as their main reason for returning were higher for older immigrants than younger immigrants after controlling for duration in the United States and other sociodemographic factors (OR=0.27; 95% CI=0.11, 0.68). These results challenge existing theories of international migration which focus on employment considerations.