This research explores the perceived exchange of social support resources of young, midlife, and older adults in the United States and Japan, and how perceptions of exchange may moderate attributions of control, difficulty, and success in attaining important life-goals. A survey was administered to participants in the United States and Japan who ranged in age from 17 to 70 years. Results suggested culture and age to influence the designation of important life-goals, and to interactively moderate the perceived exchange of social support resources in the interpersonal contexts of family and business associates and co-workers. Furthermore, relationships between the perceived exchange of social support and perceptions of control and success in achieving life-goals indicated different intracultural effects. Overall, these findings suggest nuances in the perceived exchange of social support and social cognitions that reflect the cultural orientations of young, midlife and older adults in the United States and Japan. A culturally grounded model of social support is proposed and discussed.