In July, the final month of the six-month adjustment period for the fourth COLA under the 2024 Agreement, the CPI-W Unadjusted Index (1967=100) rose slightly from last month to 974.343, but not enough to change the calculations. Nonetheless, it was an increase over the January 2026 index point upon which employees received the last COLA.
Based on the July 2026 Index, the fourth COLA adjustment will be:
| Monthly Tracking | Amount |
| Per Annum | $1,414.00 |
| Per Pay Period | $54.40 |
| Cents Per Hour | $0.68 |
The fourth COLA adjustment will show up in paychecks on September 25, 2026, which is Pay Period 20–2026, with the COLA becoming effective September 5, 2026.
Source: APWU