Most public forecasts for the 2027 Social Security COLA cluster around 3.6%, with analysts and senior-advocacy groups basing estimates on recent CPI-W readings and summer inflation data.
Several outlets and advocacy groups have updated their 2027 Social Security COLA projections to roughly 3.6% after July–September inflation readings softened from earlier estimates, putting the adjustment near what many retirees saw in 2024 and 2025.

The Social Security Administration calculates the annual COLA using the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W), comparing the average of July, August and September with the same months from the prior year, the SSA explains.
Analysts at groups tracked by financial outlets say the 3.6% estimate reflects that CPI-W readings through the summer point to a modest year-over-year increase. Investopedia reports the estimate at 3.6%, and AARP has noted a similar figure in its COLA preview analysis.
If the COLA lands at about 3.6%, outlets including CBS and Yahoo have estimated that the average retired-worker benefit would rise by roughly $60 to $75 per month, depending on the beneficiary’s current payment.

The official COLA for 2027 will be announced by the Social Security Administration in mid-October; internal reporting notes the announcement date scheduled for October 14. That publication date has been the usual timing for the SSA’s yearly COLA release.
How the COLA is finally set depends only on the BLS CPI-W numbers for the specific July–September window; forecasters update their estimates as fresh monthly CPI-W figures arrive, which is why projections have narrowed toward the 3.6% range this summer.
For beneficiaries, a 3.6% increase would raise monthly checks modestly but would not change program rules or longer-term solvency projections, which remain separate policy issues tracked by analysts and the SSA.
Sources
- Social Security Administration — explained the CPI-W method the SSA uses to calculate COLAs.
- AARP — provided a 2027 COLA preview and cited a roughly 3.6% estimate based on current inflation data.
- Investopedia — reported the 3.6% estimate and described how COLA projections are formed.
- CBS News — estimated the dollar impact of a 3.6% COLA on the average retired-worker benefit.
- Yahoo Finance — summarized several forecasts and the range of likely monthly increases for beneficiaries.











