For the past two years those who receive Social Security Disability and Retirement have not received a cost of living increase to their benefit amount. But in 2012 this is expected to change, when an announcement is made this week and will be effective starting this January.

This increase is because for the first time in the last 2 years the consumer price index – a measure of how much it costs consumers, on average, to buy things like food and transportation – rose considerably from a year ago.

Social Security cost-of-living adjustment (or COLA) is calculated using this index, and payments are increased when the measure jumps from one year to the next.

Based on this index data, the raise is likely to be about 3.5%. A person who receives $10,000 from Social Security last year would receive an extra $350 in 2012.

However, some of this increase will be lost to higher Medicare premiums, which are deducted from Social Security payments.

Medicare Part B premiums for 2012 are expected to be announced next week, and the trustees who oversee the program are projecting an increase.

The federal government announced on October 15, 2010 that Social Security Disability and Social Security Retirement recipients will not receive a cost-of-living adjustment in 2011. This will be the second year in a row that there has not been a cost-of-living increase.

The absence of a cost-of-living adjustment, calculated under a formula set by law, will be a shock to older Americans and the disabled already hit by plummeting home values, investment losses and rising health costs. More than 50 million people receive some form of Social Security benefits.

Before 2010 Social Security recipients had received automatic cost-of-living adjustments every year since 1975. The increase in 2009 was 5.8 percent. By law, Social Security benefits cannot go down.

The cost-of-living adjustment is intended to preserve the purchasing power of Social Security, by increasing benefits to keep pace with consumer prices. In the last year, overall inflation has been low, largely because of the economic downturn.

The Congressional Budget Office, has predicted that inflation would remain low for several years, so it is possible that Social Security might not pay a cost-of-living increase for several years.

For the first time in more than three decades, recipients of Social Security benefits (including Social Security Disability benefits) will not get any increase in their benefits next year, federal forecasts show.