Social Security and Cost of Living Adjustments (COLA)

How cost of living adjustments or COLAs increase your retirement benefits

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COLA helps you keep up with the good life.. (c) Getty Images

A cost of living adjustment (COLA) is one of the most important features of the individual Social Security retirement benefit. With a COLA your monthly payment is indexed for inflation -- that means that, should inflation rise, the monthly income rises with it. (Many other defined benefit pensions pay a fixed amount each month, regardless of the inflation rate.) While inflation indexing during a one- or two-year period is not terribly meaningful, the value of this type of inflation protection increases dramatically over the 20 or 30 years a healthy person might live in retirement.

COLA Helps Keep Up With Financial Needs

Under congressional legislation, Social Security benefits have been indexed for inflation since 1973. During the first few years, legislation was required for each adjustment. As of 1975, adjustments for cost of living are made automatically. During periods of positive inflation, Social Security retirement benefits increase to reflect rising costs. 

Inflation protection is designed not to increase the standard of living of a Social Security beneficiary but to maintain the purchasing power of income benefits over time. For example, assuming a modest 3 percent inflation rate, a person's income would need to increase over 80 percent from age 65 to age 85 just to maintain a consistent standard of living. If inflation were 4 percent, that income would have to more than double during those 20 years to keep the same purchasing power. 

How the COLA Is Determined

A specific formula drives the determination of the COLA.

The calculation is based on the third quarter increase in the Consumer Price Index (CPI-W) as measured by the Department of Labor's Bureau of Labor Statistics. If there is an increase in the CPI-W compared to the third quarter in the previous year, a COLA will be made. If there is no increase, there's no COLA.

 A new COLA is announced each year, typically during the month of October. Any adjustment will apply to benefits paid beginning in December for the subsequent year.

COLA Annual Calculations

The amount of the COLA increase will depend on the CPI-W. Since 1980, the annual COLA has been as high as 14.3% (1980, a period of high inflation) and as low as 1.3% (1998). The COLA in 2015 was 1.7 percent. Also in 2015, the maximum amount of earnings subject to the Social Security tax increased to $118,500.

However, there will not be a COLA for 2016.  According to the Social Security Administration, "monthly Social Security and Supplemental Security Income (SSI) benefits will not automatically increase in 2016 as there was no increase in the Consumer Price Index (CPI-W) from the third quarter of 2014 to the third quarter of 2015". The maximum amount of earnings subject to the Social Security tax will remain unchanged in 2016 because there will not be a cost of living adjustment.

For more detailed information on the indicator, take a look at the COLA history since 1975.

Earnings and COLA

The Social Security retirement earnings limits adjust with COLA as well. Individuals younger than full retirement age (which varies according to the year in which you were born but is age 66 for those born between 1943 and 1954) who receive Social Security benefits and go back to work can earn up to $15,720 in 2015 before any deductions are taken. Social Security deducts $1 for every $2 earned in excess of that $15,720 limit prior to full retirement age.

For Social Security beneficiaries celebrating their 66th birthday in 2015, the earnings limit is $41,880. Until the month of your birthday, for every $3 earned during the year, Social Security will deduct $1 from benefits. Once you reach full retirement age, the earnings limits no longer apply.

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