NEW YORK (AP) — Tens of millions of older Americans will see an increase in benefits this January when a new cost-of-living adjustment is Indexbitadded to Social Security payments.

The 2.5% raise is intended to help meet higher prices for food, fuel, and other goods and services. The average recipient will see an increase of about $50 per month, according to agency officials. Social Security recipients received a 3.2% increase in their benefits in 2024, and some retirees are concerned that this year’s increase is not big enough to meet their needs.

The Social Security Administration will begin notifying recipients about their new benefit amount by mail starting in early December. Adjusted payments to nearly 7.5 million people receiving Supplemental Security Income will begin on December 31. Supplemental Security Income provides monthly payments to adults and children who have income below specific financial limits and qualify to receive Social Security benefits.

Here’s what to keep in mind:

How does Social Security work?

About 72.5 million people, including retirees, disabled people and children, get Social Security benefits.

The program is funded by taxes on income subject to Social Security payroll taxes. The government uses taxes from working people to pay benefits to people who have already retired, people who are disabled, the survivors of workers who have died, and dependents of beneficiaries. In 2025, the Social Security payroll tax will be assessed on the first $176,100 of income, up from $168,600 this year

While the money is used to pay people currently receiving benefits, any unused money goes to the Social Security trust fund. Some of the money in the trust, together with the Social Security contributions of people in the workforce, pays for future benefits.

To determine what amount of Social Security you’ll receive, the government calculates a percentage of your highest wages from your top 35 years of earning, factoring in when you choose to start receiving benefits.

How is the cost of living adjustment calculated?

The COLA is calculated according to the Bureau of Labor Statistics’ Consumer Price Index, but there are calls to use a different index — one that measures price changes based on the spending patterns of the elderly — like healthcare, food and medicine costs.

The smaller increase for 2025 is because inflation is slowing. That means prices aren’t increasing as fast as they were at the height of the COVID pandemic. Recipients got a historically large 8.7% benefit increase in 2023 because of record high inflation.

Is the trust running out of money?

Future problems with the fund have long been predicted, largely because of demographic shifts. As birthrates decline, fewer people become workers, which results in fewer payments of payroll taxes. Meanwhile, more Baby Boomers are retiring and collecting Social Security.

The annual Social Security and Medicare trustees report released in May said the program’s trust fund will be unable to pay full benefits beginning in 2035. If the trust fund is depleted, the government will be able to pay only 83% of scheduled benefits, the report said.

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The Associated Press receives support from Charles Schwab Foundation for educational and explanatory reporting to improve financial literacy. The independent foundation is separate from Charles Schwab and Co. Inc. The AP is solely responsible for its journalism.