http://www.ssa.gov/pressoffice/pr/2007cola-pr.htm"Monthly Social Security and Supplemental Security Income benefits for more than 53 million Americans will increase 3.3 percent in 2007, the Social Security Administration announced today.Social Security and Supplemental Security Income benefits increase automatically each year based on the rise in the Bureau of Labor Statistics' Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W), from the third quarter of the prior year to the corresponding period of the current year. This year's increase in the CPI-W was 3.3 percent. The 3.3 percent Cost-of-Living Adjustment (COLA) will begin with benefits that nearly 49 million Social Security beneficiaries receive in January 2007. Increased payments to more than 7 million Supplemental Security Income beneficiaries will begin on December 29."