Cost-of-Living Adjustment (COLA)
$$\text{New Salary} = \text{Old Salary} \times (1 + \text{CPI Change})$$
What is Cost-of-Living Adjustment (COLA)?
A cost-of-living adjustment (COLA) is an automatic increase to wages, salaries, or benefits designed to offset inflation - keeping purchasing power stable as the general price level rises. The adjustment is typically tied to a price index, most commonly the Consumer Price Index for All Urban Consumers (CPI-U) in the United States.
Social Security benefits receive an official COLA each year determined by the SSA. For 2026, the COLA was 2.8%, based on Q3 2025 CPI data. Many private employers also issue a COLA - sometimes bundled into a single annual increase with a merit component, sometimes paid as a separate flat adjustment for all employees.
When to use Cost-of-Living Adjustment (COLA)
Use COLA as a baseline when evaluating any annual salary increase. A raise that exactly matches COLA preserves your current standard of living but provides no real income growth. A raise below COLA is a real-terms pay cut even if the dollar amount is higher.
Worked examples
| Year | US CPI change | SSA COLA applied | Real gain from a 3.5% raise |
|---|---|---|---|
| 2022 | +8.0% | +8.7% | -4.5% (real loss) |
| 2023 | +3.4% | +3.2% | +0.1% (near break-even) |
| 2024 | +2.9% | +2.5% | +0.6% (slight real gain) |
| 2025 | +2.8% | +2.8% | +0.7% (modest real gain) |
Common pitfalls
COLA and merit increases serve different purposes. Bundling them into a single percentage makes it hard to know whether you received real performance recognition or just an inflation offset. When negotiating, ask your employer to separate the COLA component from the merit component so you can evaluate each independently.
Frequently asked questions
How is the Social Security COLA calculated?
The SSA compares the average CPI-W (Consumer Price Index for Urban Wage Earners) in Q3 of the current year against Q3 of the previous year. If the index rose, all Social Security benefits increase by the same percentage the following January. For 2026, the COLA was 2.8%.
Does every employer give a COLA?
No. COLA is mandatory for Social Security and some government pension plans, but private employers are not required to give inflation-linked raises. Many employers issue a single combined increase that blends COLA and merit, making it difficult to separate the two components.