June CPI-W came in at 3.5%. Here’s where the 2027 COLA count actually stands.
Every month brings a fresh inflation headline and a fresh round of COLA speculation — and almost all of it is noise. The 2027 cost-of-living adjustment is decided by exactly three data points, and as of today none of them have been published. Here’s what June actually reported, how the calculation genuinely works, and the release dates that will decide your 2027 raise.
1. What the June report actually said
CPI-W — the specific index that drives federal COLAs — rose 3.5% over the 12 months ending in June 2026, landing at an index level of 327.075. On a monthly basis it fell 0.5% before seasonal adjustment, with falling gasoline and energy costs doing most of the work.
That’s a real cooldown. May had run at 4.2% over the year — the hottest reading since April 2023. One month later, nearly three-quarters of a point came off.
2. The only three months that count
This is the part that makes most COLA coverage misleading. The adjustment isn’t “this year’s inflation.” It’s a comparison of two three-month averages — and only the third quarter is in it.
Every reading in the top row — including the one that triggered a wave of “COLA estimate” headlines — carries zero weight in the formula. The three that decide your raise haven’t been published yet.
3. Why the index level beats the percentage
Headlines quote the year-over-year rate. The formula uses index levels. SSA averages three actual index values and compares that average to a prior-year average — so a month can post an eye-catching percentage while barely moving the index, or vice versa. If you want to follow this properly between now and October, track the CPI-W index number (June: 327.075), not the inflation rate on the news.
4. What could still move it
Quite a lot. Energy just demonstrated how fast the picture turns: a spike carried May to 4.2%, and a decline dragged June to 3.5% one month later. With two-thirds of the deciding data still unpublished, a hot August or a soft September would shift the average and the final number with it. Current projections cluster around 3.6%–3.8%, but that band has already moved once this summer and can move again.
5. What it means if you’re under FERS
Above 3% inflation, most eligible FERS retirees receive the announced figure minus one full percentage point. Between 2% and 3%, it’s a flat 2.0%. CSRS and Social Security get the whole thing.
| Announced | CSRS / Social Security | Most eligible FERS |
|---|---|---|
| 3.8% | 3.8% | 2.8% |
| 3.6% | 3.6% | 2.6% |
| 2.9% | 2.9% | 2.0% |
And if you’re a regular FERS retiree under age 62, none of it reaches your annuity yet at all.
6. FAQ
What did the June 2026 CPI report show?
The Consumer Price Index for Urban Wage Earners and Clerical Workers, or CPI-W, increased 3.5 percent over the 12 months ending in June 2026, reaching an index level of 327.075. On a monthly basis the index actually declined, falling 0.5 percent before seasonal adjustment. The cooldown was driven largely by falling gasoline and energy costs. That is a notable slowdown from May, when consumer prices rose 4.2 percent over the year, the highest reading since April 2023.
Which CPI-W readings determine the 2027 COLA?
Only three: July, August, and September 2026. The Social Security Administration averages the CPI-W index values for those three months and compares that average with the average for July, August, and September of 2025. The percentage increase between the two averages, rounded to the nearest tenth of a percentage point, becomes the official COLA. Readings from October 2025 through June 2026 are useful for spotting the trend but contribute nothing to the formula itself.
When is the next CPI release?
The Consumer Price Index for July 2026 is scheduled for release on Wednesday, August 12, 2026, at 8:30 a.m. Eastern Time. That is the single most important upcoming data point for federal retirees, because July is the first of the three months that actually enter the COLA calculation. The August data follows in September, and the September data arrives in October, at which point the Social Security Administration can compute and announce the official 2027 adjustment.
Why does the index level matter more than the percentage?
Because the COLA formula works on index levels, not on the year-over-year percentages quoted in headlines. The Social Security Administration averages three actual index values and compares that average with a prior-year average. A month with a high year-over-year percentage can still leave the index level relatively flat, and vice versa. Following the index number — 327.075 for CPI-W in June 2026 — gives you a more direct read on where the calculation is heading than the widely reported inflation rate does.
Could the 2027 COLA still change significantly?
Yes. With two of the three deciding months still unreported, there is real room for movement. Energy prices have already demonstrated how quickly the picture can shift: a spike pushed May to 4.2 percent, and a decline pulled June down to 3.5 percent within a single month. A hot August or a soft September would move the three-month average and the final figure with it. Projections currently cluster between roughly 3.6 and 3.8 percent, but none of that is fixed until the September data publishes in October.