Social Security 2027 COLA estimates ease as June inflation cools

Estimates for the 2027 Social Security cost-of-living adjustment have moved lower after June inflation data showed price pressures easing, with analysts now putting the potential increase at about 3.7% to 3.8%. The adjustment affects monthly payments for tens of millions of retirees, disabled workers and other beneficiaries, making inflation data a direct input into household cash flow for a large share of older Americans.

Mary Johnson, an independent Social Security and Medicare analyst, estimated the 2027 COLA at 3.7%. That is one percentage point below the 4.7% estimate she made a month earlier, according to CNBC.

Johnson attributed the lower projection to the latest inflation reading. “This is a significant drop in inflation, and one that we’ve rarely seen in the June CPI data over the past five years,” she said in a statement cited by CNBC.

Government data released Tuesday showed the consumer price index rose 3.5% in the 12 months through June. CNBC reported that the reading was below expectations, reflecting a decline in energy prices.

The Senior Citizens League, a nonpartisan group focused on older Americans, placed its 2027 COLA estimate at 3.8%. The group said that projection was unchanged from its estimate a month earlier.

How the adjustment works

Social Security benefits are raised each year through a cost-of-living adjustment intended to help monthly checks keep up with inflation. Estimates can change as new inflation data arrive, and the Social Security Administration typically announces the official COLA for the next year in October.

The Social Security Administration says the annual COLA has averaged 3.1% over the past decade. In 2026, more than 75 million Social Security and Supplemental Security Income beneficiaries received a 2.8% increase in benefits, according to the agency.

For households that rely heavily on Social Security, the gap between projected inflation and realized living costs remains material. A January survey by the Employee Benefit Research Institute, a nonprofit, nonpartisan research firm, and Greenwald Research found that retirees’ confidence fell by 5 percentage points to 73%. The survey included 1,045 people in retirement.

The survey found that retirees cited inflation, debt, health care costs, housing expenses and possible changes to the retirement system among their leading concerns. Two in five retirees said their health care costs had been higher than expected, according to the results.

Medicare costs also remain in focus

Medicare expenses are another part of the retirement-income equation. The annual Medicare trustees report released in June estimated the standard Medicare Part B premium, which covers medically necessary and preventive services, at $209.50 per month in 2027. The reported 2026 figure was $202.90 per month, and higher-income beneficiaries may pay additional surcharges.

Johnson told CNBC that the estimated change in Part B costs was relatively low compared with recent history. She said the average annual increase in Part B premiums has been about 5.4% over the past 10 years.

The Medicare trustees report also set 2027 thresholds for Part D prescription drug coverage. The initial deductible will be $700 in 2027, up from $615 in 2026, according to the report. The catastrophic threshold, or out-of-pocket spending limit, will rise to $2,400 from $2,100.

Those health care figures may affect how much of any Social Security increase beneficiaries retain after Medicare costs are deducted from monthly payments. The final 2027 COLA will depend on inflation data still to be incorporated before the Social Security Administration’s October announcement.

This story draws on original reporting from CNBC.