Fresh inflation data released by the Bureau of Labor Statistics is giving federal retirees reason to pay close attention and to understand exactly how their FERS COLA works, because it is not the same as what Social Security recipients receive.
How the FERS COLA Works
Federal retirees under FERS receive what is commonly referred to as a “diet COLA” — a reduced version of the full cost-of-living adjustment that applies to Social Security recipients and CSRS retirees. The reduction is built into the FERS system by design and works as follows:
When the annual COLA is 2% or less, FERS retirees receive the full adjustment. When the COLA falls between 2% and 3%, FERS retirees receive a flat 2% regardless of where the COLA lands within that range. When the COLA exceeds 3%, FERS retirees receive the full COLA minus one percentage point.
This year’s 2.8% COLA is a good example. Social Security recipients and CSRS retirees received 2.8%. FERS retirees received 2%, a meaningful difference, and one that continues to compound the longer a retiree is on the rolls.
What the May Inflation Data Shows
The Consumer Price Index rose 0.5% in May and 4.2% over the past 12 months, the highest annual inflation rate since April 2023. Energy prices were the primary driver, rising 3.9% in May alone and accounting for more than 60% of the monthly increase. The ongoing conflict in Iran has kept upward pressure on energy costs, which is rippling through the broader economy.
Core inflation, which excludes food and energy, rose a more modest 2.9% annually, suggesting that while headline inflation is elevated, broader price pressure remains somewhat contained for now.
What It Could Mean for the 2027 COLA
Based on the May data, The Senior Citizens League, a nonpartisan advocacy organization that tracks COLA projections, estimates the 2027 COLA could land between 3.8% and 4.2%. Either figure would represent a full percentage point increase over this year’s adjustment and would be the largest COLA since the historic 8.2% increase in 2023.
If the 2027 COLA lands at 3.8%, Social Security recipients and CSRS retirees would receive the full 3.8%. The FERS COLA would be 2.8%, identical to this year despite inflation running significantly higher.
It is worth noting that May data does not directly determine the 2027 COLA. By law, the adjustment is calculated using the average CPI-W for July, August, and September compared to the same period from the prior year. The Social Security Administration will officially announce the 2027 COLA on October 14th.
What About Social Security Recipients?
For Social Security recipients, the COLA picture is somewhat more straightforward. They receive the full adjustment without the FERS reduction. But a higher COLA does not always translate to meaningfully more purchasing power. This year’s 2.8% Social Security increase was largely offset by a 9.7% jump in Medicare Part B premiums, leaving many retirees with a net gain of only a few dollars per month. Whether 2027 tells a different story will depend on what Medicare premiums do alongside the COLA, a question that will not be answered until later this fall.
A Federal Retirement Consultant (FRC®) can help you understand how COLA adjustments factor into your overall retirement income picture. Schedule your complimentary benefits review today.
