The expected 2027 Social Security COLA is still a forecast, not a final number, but recent estimates cluster around 3.8% to 4.2%. One of the more cited mid-2026 projections put it at 3.8% , while another estimate reached 4.2% as inflation ran hotter than earlier expected.

What’s driving it

The COLA is tied to inflation, especially the CPI-W measure used for Social Security adjustments. Recent reports note that higher gasoline, energy, and food prices pushed forecasts upward during 2026.

Current estimates

Source| 2027 estimate
---|---
The Senior Citizens League| 3.8% 410
Mary Johnson estimate| 4.2% 6
CNBC April estimate| 3.2% 2
Nasdaq roundup of forecasts| 2.8% to 3.1% range from earlier models 3

What to expect

The most practical answer is that the 2027 COLA probably lands somewhere in the high-3% range , but it can still move before the official announcement. Social Security usually publishes the final COLA in October , after the inflation data used for the calculation is complete.

Why it matters

A COLA around 3.8% would mean a noticeable boost in monthly benefits for many retirees, though the exact dollar amount depends on each person’s current check. Forecasts at this stage are useful for planning, but they are not guaranteed.

TL;DR: A reasonable current expectation for the 2027 SSA COLA is about 3.8%, with some estimates as high as 4.2%.