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Cost -Of -Living Adjustment <br />Social Security and Supplemental Security <br />Income (SSI) benefits are adjusted to <br />reflect the increase, if any; in the cost of <br />living as measured by the Consumer Price <br />Index for Urban Wage Earners and Clerical <br />Workers (CPI -WI prepared by the Bureau of <br />Labor Statistics (BLS). The purpose of the <br />cost -of -living adjustment (COLA) is to ensure <br />that the purchasing power of Social Security <br />and SSI benefits is not eroded by inflation. <br />For purposes of determining the COLA, the <br />average CPI-W for the third calendar quarter <br />of the last year a COLA was determined <br />is compared to the average CPI-W for the <br />third calendar quarter of the current year. <br />The resulting percentage increase, if any, <br />represents the percentage that will be used to <br />increase Social Security benefits beginning <br />for December of the current year. SSI benefits <br />increase by the same percentage the following <br />month (January). If the increase in the CPI-W is <br />at least one -tenth of one percent (0.1 percent), <br />there will be a COLA. However, if the CPI-W <br />increases by less than 0.05 percent, or if the <br />CPI-W decreases, there will not he a COLA. <br />I"istory <br />Congress enacted the COLA provision as <br />part of the 1972 Social Security Amendments. <br />Prior to enactment, increases in Social Security <br />benefits had to be enacted by Congress on <br />an ad hoc basis. At that time, inflation was <br />relatively high, so the provision enacted in <br />1972 provided for an automatic COLA only <br />if the increase in the CPI-W was at least <br />3 percent, the so-called "3-percent trigger!' <br />By the mid-1980s, as inflation began to <br />wane, it became apparent that because of the <br />3-percent trigger, it could be possible that <br />there would not be an annual COLA. In 1986, <br />Congress enacted legislation to eliminate the <br />3-percent trigger. <br />Other Automatic Increases <br />There are a number of other automatic <br />increases in the Social Security program. Two <br />of these increases are based upon increases <br />in the national average wage index, but are <br />triggered only if there is a COLA for Social <br />Security benefits. These increases are: <br />• The contribution and benefit base — <br />the cap on the amount of wages and self- <br />employment income subject to Social <br />Security payroll tax; and <br />• Retirement earnings test exempt amounts — <br />caps on the amount of earnings that a <br />beneficiary can earn before a reduction in <br />benefits will apply. <br />V}!AI 4 VIII I mu Iw iu o ; II I��l i I <br />q,✓Wag <br />Unlike the Social Security COLA, the <br />CPI-W plays no part in the computation of the <br />Medicare Part B premium. The Medicare Part <br />B premium changes each year, if necessary, so <br />that the Part B premium is sufficient to fund <br />approximately 25 percent of the projected cost <br />of the Part B program. Any such premium <br />change is effective in January. <br />Information about Medicare changes for <br />2013 will be available at www.medicare.gov <br />Contacting Social Security <br />For more information and to find copies <br />of our publications, visit our website at <br />www.socialsecurity.gov or call toll -free, <br />1-800-772-1213 (for the deaf or hard of hearing, <br />call our TTY number, 1-800-325-0778). We <br />treat all calls confidentially. We can answer <br />specific questions from 7 a.m. until 7 p.m., <br />Monday through Friday. We can provide <br />information by automated phone service 24 <br />hours a day. <br />We also want to make sure you receive <br />accurate and courteous service. That is why we <br />have a second Social Security representative <br />monitor some telephone calls. <br />Social Security Administration <br />'Vitt; SSA Publication No. 05-10526 <br />j,, II1III ,J October 2012 <br />www.socialsceurity.gov <br />