Social Security Cost-of-Living Adjustment Estimate Raised to 4 Percent for 2027

The Senior Citizens League, a nonpartisan seniors advocacy organization, currently estimates a 4.0 percent COLA for 2027. That estimate is much higher than earlier forecasts, ranging from 2.5 percent to 2.8 percent.

Kelly McBride Ni

Published: 5/9/2026, 9:02:00 PM EDT

Social Security Cost-of-Living Adjustment Estimate Raised to 4 Percent for 2027 — A Social Security card sits alongside checks from the U.S. Treasury on Oct. 14, 2021. (Kevin Dietsch/Getty Images)

The annual Social Security cost-of-living adjustment (COLA) for 2027 is now forecast to rise significantly, with analysts projecting an increase, and a seniors' advocacy group estimating an increase to 4 percent. The expected jump comes amid inflation, driven by rising energy and housing costs that continue to strain the budgets of millions of retirees.

The league’s website features a COLA Watch tracker with a live countdown clock, displaying the days and seconds remaining until the Social Security Administration announces the official 2027 cost-of-living adjustment in October.

The annual COLA affects nearly 70 million Social Security beneficiaries and Supplemental Security Income recipients. The adjustment is designed to help benefits keep pace with inflation and is calculated using the Consumer Price Index for Urban Wage Earners and Clerical Workers, or CPI-W.

An analysis by The Motley Fool found that CPI-W inflation rose to 2.2 percent in January and February, then jumped to 3.3 percent in March—a 1.1 percentage-point increase—as energy prices spiked amid the Iran conflict.

The American Automobile Association said the national average gasoline price reached $4.15 per gallon in April, up from $2.98 before the conflict escalated earlier this year.

According to the Motley Fool analysis, damage to oil infrastructure may keep prices elevated through the end of the year, potentially driving up manufacturing and transportation costs. That could push inflation and the 2027 Social Security COLA higher than earlier forecasts.

Because the Social Security Administration bases COLA on inflation data from July, August, and September, summer inflation trends will determine the final adjustment announced in October.

Based on current average retirement benefits reported by the Social Security Administration, a 4 percent COLA would increase monthly payments by about $83.

Retirees Still Struggling Despite Benefit Increases

The Senior Citizens League said many retirees are already struggling despite projected benefit increases.

The group said senior households have about 58 percent as much income as working-age Americans and pointed to mounting housing pressures, with one-bedroom apartment rents in cities such as New York, Boston, Los Angeles, and Washington often exceeding $2,000 per month.

The organization also warned that Medicare Part B premiums increased 9.7 percent in 2026, more than triple the 2.8 percent Social Security COLA that year. The premium hike reduced the net benefit many retirees received.

Larger COLAs are often tied to worsening inflation rather than improved economic conditions. Research from the Senior Citizens League estimates that Social Security benefits have lost about 20 percent of their purchasing power since 2010, as housing, medical care, and other expenses have risen faster than annual benefit adjustments.

Earlier this year, the 2027 Social Security COLA was estimated at about 2.5 percent, 0.3 percentage points below the 2.8 percent adjustment for 2026.

The Social Security Administration is expected to announce the official 2027 COLA in October after third-quarter inflation data becomes available.