Each fall, the Social Security Administration announces one number that matters to about 76 million Americans. It is the cost-of-living adjustment, or COLA. Its job is to help benefits keep pace with consumer prices. Beneficiaries have received these annual adjustments for more than 50 years.
The COLA is one of the only inflation-adjusted parts of most retirement portfolios, so Social Security becomes a larger share of retirement income as people age. (Bill Sweeney, AARP, as reported by PBS News)

The adjustment is a mathematical formula tied to consumer prices. Payments reach people 62 or older, people with a disability or blindness, and some dependents or surviving spouses of people who have died. Supplemental Security Income (SSI) payments rise by the same percentage. For 2027, both rise 3.6 percent.
The mechanics of the adjustment
Social Security bases the COLA on changes in the Consumer Price Index, or CPI. The Bureau of Labor Statistics publishes the CPI monthly. The agency sets the COLA each fall, and the formula does the rest.
The result tracks inflation closely. When inflation is low, COLAs are low. When inflation spikes, COLAs can be large jumps. Inflation has spiked on and off for about six years before the 2027 announcement, and the yearly adjustments have swung with it.
The recent numbers show the swing. Payments rose 5.9 percent in 2022 and 8.7 percent in 2023. The 3.6 percent for 2027 is the highest since 2023, yet it is well below those two years.
What the 3.6 percent means in dollars
The federal government announced the 2027 COLA on a Wednesday in mid-October 2026. For the average retired worker, the increase is about $76 per month. That adds up to a little more than $900 over a year.
Shai Akabas of the Bipartisan Policy Center said the 2027 adjustment is "not wildly outside of the norm." In other words, it is a middling year, not a dramatic one.
The $76 is an average, and your own change will differ. The COLA is a percentage, so a larger benefit gets a larger dollar raise. As a simple illustration, 3.6 percent of a $1,000 monthly benefit is $36. On $2,000 it is $72. On $3,000 it is $108. The sources do not explain how an individual benefit is calculated, so these figures only show the arithmetic of the percentage.
Checking your own notice
You can see your new amount in a personal my Social Security account. There you can view your statement and manage notices. COLA notices are available online in the account's message center, and a paper notice is still mailed.
You can also ask for alerts. Courtesy notifications can be turned on in the Message Center Preferences, and they send an email or text when a new message arrives.
- Sign in to your my Social Security account.
- Open the message center and look for the COLA notice.
- Check Message Center Preferences to turn on email or text alerts.
Compare the notice with the $76 average. If yours is far from it, the likely reason is a benefit above or below the average, though the sources do not say more than that.
What the sources leave open
Some practical questions have no answer yet in the material reviewed. The sources do not say when the 2027 increase takes effect or when payments change. They also do not cover tax effects of higher benefits, and they give no SSI details beyond the 3.6 percent rate.
That matters if you are planning a budget. A higher benefit can shift other parts of your finances, but the sources do not describe how. For those questions, the Social Security Administration, Medicare, or a tax professional is the place to ask. Until then, the notice in your account is the figure to trust over any average.
One more note for readers who follow the technical debate. AARP has published an explainer on the Chained CPI and how it compares with the CPI-W, the measure behind benefit changes. The sources do not give the details, and they do not say whether any change has been adopted.














