This bill, titled the "Safeguarding American Families and Expanding Social Security Act of 2025," seeks to improve retirement security by increasing Social Security benefits and strengthening the program for future generations. It introduces several key changes to how benefits are calculated and adjusted, as well as modifications to the taxable wage base. A significant provision involves adjustments to the primary insurance amount (PIA) formula. Specifically, the bill increases the percentage factor for the lowest portion of earnings used to determine PIA from 90 percent to 95 percent , thereby boosting benefits for lower-income individuals. Additionally, it incorporates 5 percent of an individual's surplus average indexed monthly earnings (earnings above the contribution and benefit base) into the PIA calculation, which will result in higher benefits for high earners. The legislation also modifies the bend points used in the PIA formula, setting a new second bend point for 2026 and indexing it to wage growth. Furthermore, it mandates a gradual increase to the first bend point starting in 2031, expanding the earnings range to which the 95 percent factor applies. For current beneficiaries, the bill requires a recomputation of primary insurance amounts effective January 2026, potentially increasing their existing benefits. To ensure more accurate cost-of-living adjustments (COLAs), the bill mandates the use of a new Consumer Price Index for Elderly Consumers (CPI-E) . The Bureau of Labor Statistics is directed to develop and publish this index, which will reflect the consumption patterns of individuals at or above early retirement age, likely leading to higher annual benefit increases. Finally, the bill temporarily subjects a portion of wages and self-employment income above the Social Security contribution and benefit base to taxation from 2026 through 2029, with this provision phasing out by 2030.