The early estimate for Social Security’s 2027 cost-of-living adjustment has cooled to roughly 3.7-3.8% as of mid-July 2026, down from earlier-year projections, as inflation eased from its spring peak. The official number won’t be confirmed until October.
Where the Estimate Stands Now
Independent Social Security analysts — including The Senior Citizens League and former SSA statistician Mary Johnson — publish monthly COLA forecasts based on incoming inflation data. As of mid-July 2026, TSCL’s projection held at 3.8%, while Mary Johnson’s independent estimate ticked down to 3.7%, reflecting cooler-than-expected inflation readings over the summer.
Neither of these numbers is official. The Social Security Administration calculates the actual COLA using average CPI-W data from July, August, and September, and doesn’t announce the confirmed figure until mid-October.
Why the Timing Matters Right Now
July is a pivotal month for the 2027 COLA specifically because it’s the first of the three months the SSA uses in its calculation. Inflation readings that come in this month, along with August and September, will directly determine the final percentage — estimates published before July data was in were more speculative than the numbers now being refined.
What a 3.7-3.8% Raise Would Mean in Dollars
Based on TSCL’s July 2026 calculation, the average retirement benefit would rise by roughly $73.62 a month, from $1,937.53 to $2,011.15, before any Medicare Part B premium offset. Part of that increase typically gets absorbed by the annual Medicare Part B premium adjustment, which TSCL estimates could take back around $15.70 of the gain for beneficiaries enrolled in Medicare who have premiums deducted directly from their check.
This would be a larger increase than the 2.8% COLA that took effect for 2026, though still below the historically high adjustments of 2022 and 2023.
When You’ll Know for Sure
The Social Security Administration is set to announce the official 2027 COLA on October 14, 2026, once the Bureau of Labor Statistics releases September’s inflation data. The confirmed adjustment takes effect with the payment beneficiaries receive in January 2027.
Frequently Asked Questions
Is 3.7-3.8% the final COLA number?
No. These are independent analyst estimates based on partial-year inflation data. The SSA’s official figure, using all three months of CPI-W data, is announced October 14, 2026.
When does the new COLA start showing up in payments?
January 2027, for benefits paid that month and after — not retroactively applied to 2026 payments.
Does the COLA amount apply the same to everyone?
The percentage is uniform, but the dollar increase depends on your current benefit amount — a higher starting benefit means a larger dollar increase at the same percentage.
Source: Social Security’s 2027 COLA estimate is out as inflation cools — Yahoo Finance
