Social Security (United States)
![Older man with sign,](/Images/godic/202501/30/AFSCME_supporter_holding_sign_over_his_head_-_Hands_Off_Our_Social_Security2150.jpg")
![For people in the bottom fifth of the earnings distribution, the ratio of benefits to taxes is almost three times as high as it is for those in the top fifth.[119]](/Images/godic/202501/30/Social_Security_Benefits_by_Income_Quintile2150.jpg")
![Single men with different wages and retirement dates](/Images/godic/202501/30/Fig._168_-_Single_men_with_different_wages_and_retirement_dates2150.JPG")
![Impact of gender and wage levels on net SS benefits](/Images/godic/202501/30/Fig._165_-_Impact_of_gender_and_wage_levels_on_net_SS_benefits2150.JPG")
In the United States, Social Security is primarily the Old-Age, Survivors, and Disability Insurance (OASDI) federal program. The original Social Security Act was signed into law by President Franklin Roosevelt in 1935, and the current version of the Act, as amended, encompasses several social welfare and social insurance programs.