This bill aims to enhance the accuracy of cost-of-living adjustments (COLAs) for Social Security benefits by changing the index used for their calculation. It mandates that the Commissioner of Social Security determine these adjustments by comparing the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) with a newly established Consumer Price Index for Elderly Consumers (CPI-E) . The higher of these two indices will be selected to calculate COLAs for benefits under titles II, VIII, and XVI of the Social Security Act, potentially leading to increased benefits for recipients. To facilitate this, the Bureau of Labor Statistics is directed to prepare and publish the new CPI-E, which will reflect consumption expenditures typical for individuals aged 62 and older. Until the official CPI-E is available, a research index known as the Consumer Price Index for Americans 62 years of age and older (R-CPI-E) will be used as a transitional measure. These amendments are set to take effect for cost-of-living computation quarters ending on or after September 30, 2026 , ensuring that the new calculation method is applied to future benefit adjustments. Importantly, the bill specifies that this change will not impact adjustments under other laws that reference Social Security COLAs.