New government inflation figures point to a likely Social Security cost-of-living adjustment for 2027 of roughly 3.5%–3.6%, a rise that would mark the largest annual increase in three years and alter monthly checks for millions of recipients. That mid-single-digit bump, while modest by recent standards, still has immediate consequences for retirees, people on Supplemental Security Income and household budgets heading into next year.
About 75 million Americans who receive Social Security or SSI saw benefits rise by 2.8% this year, the Social Security Administration reported. The newer estimates for 2027 come from analysts and advocacy groups using the latest inflation readings, including the August consumer price data released this week.
Independent policy analyst Mary Johnson calculated a projected COLA near 3.5% after reviewing the recent numbers; in August she had forecast 3.4%. Johnson cautioned that the final figure remains sensitive to swings in energy markets, noting that oil-price volatility tied to the Iran conflict has been a meaningful driver of recent inflation movements.
What the estimates mean in dollars
Two prominent senior-focused organizations slightly diverged on their estimates this month, each updating earlier projections after the latest inflation data.
- The Senior Citizens League now projects a 3.5% COLA, which it says would raise the average monthly Social Security payment by about $67.90.
- AARP moved its forecast to a 3.6% COLA, estimating roughly a $75 increase for the average retired worker.
Those figures are averages: actual increases will vary by the size of an individual’s benefit. For many households, even a few dozen dollars a month can affect budgets for prescriptions, utilities and groceries.
How the government calculates the COLA and when the final number arrives
The official annual adjustment is tied to changes in the third quarter’s inflation reading compared with the same period a year earlier. Specifically, Social Security uses the Consumer Price Index for Urban Wage Earners and Clerical Workers — the CPI-W — as the basis for the calculation.
August data show the CPI-W was up about 3.5% over the prior 12 months, while the broader Consumer Price Index rose roughly 3.4% year over year. But the government still must incorporate one more month of data before the Social Security Administration announces next year’s adjustment, typically in October.
Context — where this sits in recent history
Over the last decade the COLA has swung widely. It fell to 0% in 2016 and surged to an 8.7% increase in 2023 amid high inflation — the largest jump in roughly 40 years. The SSA calculates the 10‑year average COLA at about 3.1%.
Those swings underscore the role of energy prices, supply-chain pressures and broader economic trends in shaping benefit adjustments. Because the final number depends on third-quarter averages, short-term shifts — particularly in oil and gasoline — can still nudge the final COLA up or down before the October announcement.
What to watch next
Key indicators that could change the likely COLA in the weeks ahead:
- September CPI-W reading: The last month used in the official COLA calculation.
- Energy prices: Continued volatility in crude oil or gasoline could move headline and core inflation readings.
- Federal announcements: The SSA’s October release will confirm the official percentage.
For retirees, caregivers and financial planners, the coming weeks will clarify whether the projected mid‑3% adjustment holds. Until the SSA releases the official figure, estimates from analysts and advocacy groups offer the best sense of what 2027 benefit checks might look like.
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