June inflation cooled as gas prices fell, but the key CPI-W index still points to a larger 2027 COLA than this year. The next 3 months will decide the final increase.

The latest inflation report brought welcome news for consumers. After accelerating earlier this year, inflation cooled in June as gasoline prices retreated and energy costs fell, easing pressure on household budgets.

For federal retirees, Social Security recipients, and anyone watching the next cost-of-living adjustment (COLA), one number deserves closer attention than the headline inflation rate: the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W). That is the index used to calculate the 2027 COLA as explained below.

June Inflation Slowed

The Bureau of Labor Statistics’ June Consumer Price Index (CPI) report showed that inflation moderated after several months of stronger price increases. Economists largely attributed the slowdown to lower gasoline prices as energy markets stabilized after earlier geopolitical disruptions.

The June monthly decline was the largest since a 0.8% decrease in April 2020.

Even so, many underlying components remained elevated. Shelter costs, medical services, and many food prices continue to rise faster than many consumers would like, even as energy prices provided temporary relief. Core inflation—which excludes food and energy—also remained relatively stable, indicating that underlying inflation pressures have not completely disappeared.

Several factors contributed to June’s moderation:

• Lower gasoline prices following a temporary easing of tensions in the Middle East
• Declining energy prices overall
• Lower transportation costs
• Some moderation in travel-related expenses, such as airfares

Energy prices often have an outsized effect on the monthly CPI because gasoline purchases affect nearly every household. So a significant drop at the pump can quickly pull down the overall inflation rate even while many other goods and services continue to become more expensive.

Why Federal Retirees Should Watch the CPI-W

Although the headlines usually focus on the Consumer Price Index (CPI), retirees should watch the CPI-W, which ultimately matters for their COLA.

The Social Security Administration calculates each annual COLA by comparing the average CPI-W for July, August, and September with the average for the same three months during the previous year. The percentage increase becomes the following year’s COLA.

June’s report does not directly determine the 2027 COLA. The official COLA is set each October, after the July, August, and September CPI-W figures are available. The adjustment then takes effect in January of the following year, providing retirees with an increase in their benefit payments at the start of the new year.

Instead, June represents the last data point before the three-month measurement period begins.

The First Official Look at the 2027 COLA

The June CPI-W measured 327.075, compared with the current COLA baseline of 317.265,established for the third quarter of 2025.

For now, the June reading is about 3.1% above the current baseline, suggesting that next year’s COLA could exceed this year’s 2.8% adjustment if inflation remains near current levels through September. For context, the COLA for 2023 was 8.7%, while in 2022 retirees saw what was then an historically high 5.9% increase, driven by surging inflation that year. Over the past several years, COLA adjustments have fluctuated, so the upcoming increase looks likely to fall between last year’s more moderate rise and the higher rates seen in recent years.

Beginning with next month’s report, each monthly CPI-W release will carry much greater significance because July, August, and September make up the official calculation period.

Early Projections for 2027 COLA

Several organizations that monitor inflation and Social Security benefits, including the Senior Citizens League and AARP, are currently projecting that the 2027 COLA could land between 3.5% and 4.0%. Many projections cluster around 3.8%, according to these groups.

Those estimates remain preliminary because two-thirds of the calculation period has yet to occur, and several factors could still change the outcome:

• Energy prices could rebound
• Food inflation may accelerate
• Housing costs could remain elevated
• International events could quickly affect oil markets

Conversely, continued moderation in energy prices or weaker consumer demand could push the eventual COLA lower.

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