by Calculated Risk on 9/12/2025 08:14:00 AM

The BLS reported yesterday:

The Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) increased 2.8 percent over the last 12 months to an index level of 317.306 (1982-84=100). For the month, the index increased 0.3 percent prior to seasonal adjustment.

CPI-W is the index that is used to calculate the Cost-Of-Living Adjustments (COLA). The calculation dates have changed over time (see Cost-of-Living Adjustments), but the current calculation uses the average CPI-W for the three months in Q3 (July, August, September) and compares to the average for the highest previous average of Q3 months. Note: this is not the headline CPI-U and is not seasonally adjusted (NSA).

• In 2024, the Q3 average of CPI-W was 308.729.

The 2024 Q3 average was the highest Q3 average, so we only have to compare Q3 this year to last year.

Click on graph for larger image.

This graph shows CPI-W since January 2000. The red lines are the Q3 average of CPI-W for each year.

Note: The year labeled is for the calculation, and the adjustment is effective for December of that year (received by beneficiaries in January of the following year).

CPI-W was up 2.8% year-over-year in August (up from 2.5% YoY in July), and although this is early - we need the data for July, August and September - my guess is COLA will probably be around 2.8% this year, up from 2.5% in 2025.

Contribution and Benefit Base

The contribution base will be adjusted using the National Average Wage Index. This is based on a one-year lag. The National Average Wage Index is not available for 2024 yet, although we know wages increased solidly in 2024. If wages increased 5% in 2024, then the contribution base next year will increase to around $185,000 in 2026, from the current $176,100.

Remember - this is an early look. What matters is average CPI-W, NSA, for all three months in Q3 (July, August and September).