The Activity Card Sort (ACS) is a widely used measure for assessing participation in instrumental, leisure, and social-cultural activities. The ACS addresses previous and current activities but not future activity plans. The purpose of the study was to extend the ACS to include future planning. Previous research indicates that participation in activities and future planning is positively related to life satisfaction, and increased well-being and that these positive effects were most pronounced for adults 60 years and older. The current study participants were 60 Israeli adults aged 55 - 74 years. The research finds future planning to be widespread, common and significant among older adults. Moreover, it was found that older people planned to continue previous activities more that they planned new activities for the future, indicating more continuity than innovation among the participants in this study. Participants with higher current or past activity levels planed a greater number of future activities. Construct validity using known group method showed the extended ACS to have discriminant validity with respect to age (younger participants were more active) and gender (highly physical activities were favored by men). MANOVA repeated measures and Pearson correlations demonstrated moderate-high test-retest reliability for the extended ACS.