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The second of three numbers the Social Security Administration (SSA) will use to determine the 2025 cost-of-living adjustment (COLA) is in, and it points to a more modest increase in monthly benefit payments next year.

The Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) rose by 2.

4 percent in August compared to a year ago, the U.

S.

Bureau of Labor Statistics (BLS) reported on Sept.

11.

That followed a 2.

9 percent increase in July.

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The COLA is based on how much the CPI-W, a federal gauge of inflation, changes in July, August, and September from one year to the next.

The final figure for 2025 will be announced in October.

The COLA, derived from 2023 inflation data, increased monthly benefits by 3.

2 percent.

“Based on recent inflation figures and looking at historical data, I estimate we can expect a [2025] COLA in the low to mid 2 percent range,” says Mike Lynch, a managing director of applied insights at Hartford Funds.

Alicia Munnell, director of the Center for Retirement Research at Boston College, projected a 2025 adjustment of 2.

5 percent to 2.

6 percent.

“People are still not happy because prices are high,” she says, but “I think we’re working our way out of this inflation situation and the harm that it did.

”A 2.

5 percent COLA would increase the average benefit for a retired worker—about $1,920 a month in August 2024—by $48 a month starting in January 2025.

The average monthly benefit ($1,509 in August) would go up by a little less than $38, and the average Social Security Disability Insurance (SSDI) payment ($1,540 in August) would tick up by $38.

50.

The 2024 COLA boosted benefits by $59 a month for the average retiree.

The annual adjustment declined sharply last year in tandem with cooling inflation.

The 2023 COLA of 8.

7 percent, a byproduct of the sharp spike in consumer prices the year before, was the highest in decades.

“Social Security is generally the only source of income for seniors in retirement,” says David Certner, legislative counsel and legislative policy director for AARP.

“Whether the cost of living rises significantly or by modest amounts, AARP has fought for years to protect the COLA, which helps seniors keep up with rising prices throughout their retirement years.

”The CPI-W is a measure of price changes for a selection of goods and services, including food, energy, and medical care, that is reported monthly by the BLS.

It is a subset of the Consumer Price Index (CPI), which tracks a broader range of retail prices and is considered the “headline” number in measuring inflation.

(The main index increased 2.

5 percent year over year in August, down from 2.

9 percent in July.

)To determine the COLA, the SSA compares the average CPI-W for the third quarter of each year to the figure for that same period the year before.

In 2023, the CPI-W rose 2.

6 percent in July compared to the prior year, 3.

4 percent in August, and 3.

6 percent in September.

Over the full quarter, the index was 3.

2 percent higher on average than for the same period in 2022, resulting in the COLA that took effect in January 2024.

While a 2.

5 percent COLA would be the lowest since 2021, it would be more in line with the pre-pandemic period of relatively flat inflation.

From 2001 through 2020, the COLA averaged about 2.

2 percent.

If there is no inflation, there’s no COLA—that happened in 2009, 2010, and 2015.

The biggest adjustment ever was 14.

3 percent in 1980.

Social Security benefits can lag behind inflation during short-term periods of price volatility, depending on whether the CPI is trending up or down, but “over the cycle, it really does protect people,” says Munnell.

For example, beneficiaries lost buying power in 2021, when the 1.

3 percent COLA—based on low inflation in 2020—was outpaced by surging consumer prices.

That pattern repeated in 2022, when benefits increased by 5.

9 percent but inflation reached a 9 percent peak.

However, beneficiaries effectively caught up over the last two years as the inflation rate fell.

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“The COLA precisely matches national inflation data, meaning it will fully offset the price increases Americans have seen since the last COLA,” says Emerson Sprick, associate director of economic policy at the Bipartisan Policy Center, a Washington, D.

C.

–based think tank.

“Beneficiaries will receive only a moderate adjustment [in 2025] because they have enjoyed relatively stable price levels this year—a welcome change from the past few years.

”Prices for some major items, including rent and grocery staples such as meat and eggs, are rising faster than inflation overall, according to the BLS report.

That can create problems for older adults, says Lynch.

“A low COLA may not be able to keep up and enable beneficiaries to do all the things they choose to do in retirement,” he says.

“A lower COLA reminds us of the importance of diversification and working with a financial professional to help manage Social Security and other sources of income efficiently.

Beneficiaries should focus on what they can control, including other sources of income.

”Medicare costs can also affect the COLA’s value as a hedge against inflation.

An increase in Medicare Part B premiums in 2025 would offset a portion of the cost-of-living increase for Social Security recipients who have premiums, as do most Medicare enrollees.

In their report, issued in May, Medicare’s trustees estimated the standard Part B premium paid by most enrollees would increase from the current $174.

70 a month to $185 next year, effectively by $10.

30 a month for affected Social Security recipients.

But that figure is preliminary; the actual premium is typically announced in the fall.

Social Security’s trustees, in their annual report this year, projected that absent congressional action to shore up the program’s long-term funding shortfall, benefits could be reduced.

Sprick says that issue should remain top of mind even as beneficiaries anticipate an inflation adjustment.

“I think we can sometimes overemphasize COLAs,” he says.

“They are certainly important, but by far the biggest threat to older Americans’ financial well-being is the program’s [projected] financial shortfall.

”AARP is a nonprofit, nonpartisan organization that empowers people to choose how they live as they age.