This study examined whether retirement income sources matter for the subjective financial well-being of retirees and the subjective retirement savings adequacy of non-retirees. Using nationally representative data from the 2017 Survey of Household Economics and Decisionmaking, the study found that while income from a defined benefit (DB) plan, defined contribution (DC) plan, and an individual retirement account (IRA) were positively related to the subjective financial well-being of retirees, income from employment and family were negatively related to their subjective financial well-being. Also, retirement preparation with a DB, DC, and IRA was positively related to subjective retirement savings adequacy for non-retirees. The moderating role of age in the relationship between the form of retirement savings for non-retirees and their subjective retirement savings adequacy was significant. Because of the growing importance of individual responsibility for retirement planning, the present study adds to the financial planning knowledge of financial practitioners, educators, and researchers.