The Social Security 2027 COLA announcement date is set for mid-October 2026, and the milestone matters to the roughly 75 million Americans whose benefits are tied to the annual cost-of-living adjustment. The Social Security Administration (SSA) will publish the 2027 increase once September inflation data lands, and the Bureau of Labor Statistics (BLS) has scheduled that release for Wednesday, October 14, 2026, at 8:30 a.m. ET.

That single data point determines how much more Social Security and Supplemental Security Income (SSI) recipients will collect in 2027, making it one of the most closely watched economic announcements in retirement income planning.

Why October 14 Matters: How the COLA Announcement Date Is Set

The COLA is not a figure the SSA chooses on its own. Under federal law, the annual adjustment is tied to the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W), a Bureau of Labor Statistics inflation gauge. The SSA compares the average CPI-W for the third quarter — July, August, and September — of the current year with the same three months of the prior year. The percentage increase, rounded to the nearest tenth of a percent, becomes the next year’s COLA.

Because September closes out that measurement window, the COLA cannot be finalized until the September CPI-W figure is published — which the BLS has slated for Wednesday, October 14, 2026. The SSA has historically announced the adjustment on the same day or within days of that release.

Once the number is public, the increase takes effect with benefits payable in January 2027 for Social Security recipients. SSI recipients see the boost a bit earlier, with payments at the new rate beginning December 31, 2026.

Recent COLA History: Cooling From the 8.7% Peak

Context matters when sizing up the 2027 figure. After a stretch of inflation-driven increases, the adjustment has eased as price pressures moderate:

  • 2022: 5.9%
  • 2023: 8.7% — the largest since 1981
  • 2024: 3.2%
  • 2025: 2.5%
  • 2026: 2.8%

The 2.8% COLA for 2026, announced on October 24, 2025, lifted the average Social Security retirement benefit by about $56 per month and reached nearly 71 million Social Security beneficiaries plus close to 7.5 million SSI recipients. Over the past decade, the SSA notes, the annual COLA has averaged about 3.1%.

“Social Security is a promise kept, and the annual cost-of-living adjustment is one way we are working to make sure benefits reflect today’s economic realities,” said Social Security Administration Commissioner Frank J. Bisignano when the 2026 figure was released.

What Financial Planners Are Watching for 2027

Early estimates for the 2027 COLA firm up through the summer as July and August CPI-W data arrive — the July reading was released on August 12, 2026, and August’s follows in mid-September. Most forecasts point to a figure in the same modest range as recent years, likely in the low-to-mid 2% range, assuming inflation keeps cooling. That would keep 2027 in line with the post-2023 trend but far below the 40-year-high adjustments retirees received during the 2021-2022 inflation surge.

For investors and planners, the COLA is more than a headline: it is the automatic inflation hedge built into the nation’s largest retirement income program. A smaller COLA can quietly erode purchasing power for seniors whose budgets skew toward health care and housing — categories that tend to rise faster than the broad CPI-W measure used in the formula.

That mismatch is a long-running point of debate. The Senior Citizens League (TSCL), a nonpartisan seniors’ advocacy group, argues the COLA understates the inflation retirees actually experience because CPI-W tracks younger urban workers rather than older Americans. TSCL has pushed to switch the formula to the experimental CPI-E, an index for elderly consumers that typically runs about two-tenths of a percentage point higher.

Beyond the COLA: The Other 2027 Numbers

The October announcement arrives with a package of related adjustments that matter to workers and retirees alike, all derived from wage and inflation data. For 2026, the maximum amount of earnings subject to the Social Security payroll tax — the taxable maximum — rose to $184,500 from $176,100, and the maximum Social Security benefit for a worker retiring at full retirement age climbed to $4,152 per month. The SSI federal payment standard reached $994 per month for individuals. Updated 2027 versions of those figures will be released alongside the COLA.

For higher earners still working, a rising taxable maximum means a larger slice of income is subject to the 6.2% Social Security tax each year — a detail that affects self-employed investors and high-income professionals. For retirees, the combined COLA and benefit-formula updates reshape the income floor that anchors many withdrawal strategies.

When You’ll See the Number in Your Account

After the October announcement, beneficiaries don’t have to guess what they will receive. The SSA posts personalized COLA notices online in the Message Center of “my Social Security” accounts starting in late November, followed by mailed notices in early December. Account holders can also opt to go paperless and receive text or email alerts when a new notice arrives.

The SSA cautions beneficiaries to treat any unsolicited call, email, or text about the COLA with suspicion. The agency never asks for payment or personal information to process an automatic adjustment, and no government agency or legitimate company will request fees via wire transfer or gift cards.

What Happens Next

Between now and October 14, 2026, the COLA picture will sharpen month by month as fresh CPI-W data rolls in. Retirees and planners who want to model 2027 income should follow the BLS release calendar and watch the CPI-W specifically, rather than the headline CPI, because that is the index driving the formula. Once the September reading lands and the SSA publishes the official percentage, beneficiaries can calculate their exact new benefit amount and planners can update retirement projections accordingly.

The Bottom Line

  • The 2027 Social Security COLA will be announced in mid-October 2026, on or shortly after the September 2026 CPI release on Wednesday, October 14.
  • The COLA is calculated from the year-over-year change in third-quarter CPI-W.
  • The 2026 COLA was 2.8%, lifting the average retirement benefit by about $56 per month.
  • Recent COLAs have cooled from the 8.7% peak in 2023, and 2027 is expected to land in a modest low-to-mid single-digit range.
  • Updated taxable maximums, benefit caps, and SSI amounts for 2027 arrive with the same announcement.