Social Security COLA for 2010: 0.0%
The Social Security cost-of-living adjustment set in 2009 was 0.0%, effective with benefits payable for December 2009 and received from January 2010. There was no increase that year.
How it compares
Of the 52 adjustments since 1975, this one ranks number 50 by size. The one before it was 5.8%. The next was 0.0%.
What it adds up to since then
Apply every adjustment from this one through the 3.6% increase for 2027 in turn, and a benefit grows by a factor of 1.53. A benefit of $1,000 a month just before this increase would be about $1,527 a month in 2027.
How COLAs are set
Since 1983 each adjustment has been based on the rise in the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) from the third quarter of the year before to the third quarter of the current year, and has taken effect with the benefit payable for December.
The newest is the 3.6% increase for 2027. See what it adds to your check and every adjustment since 1975 on the same page.
Check our work
Every figure on this page was read from these official documents. Follow the links and compare.
- Cost-of-Living Adjustments, 1975 to dateSocial Security Administration. Read on November 12, 2026.