Retirement Social Security

New Inflation Data Suggests Social Security's 2027 COLA Could Be Bigger Than Expected

New data means a higher COLA might increase 2027 Social Security benefits.

By Paige Cerulli , Edited by Andrea Basse

Updated May 19, 2026

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If Social Security benefits are part of your retirement plan, then you may want to monitor the 2027 cost-of-living adjustment (COLA) predictions. The 2027 Social Security COLA estimate has jumped significantly over the past few months, and a higher COLA could impact retirees in several ways in the coming year.

Here's what to know about the 2027 COLA and what it might mean for your retirement budget.

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Understanding the Social Security COLA

The COLA is an annual adjustment that helps Social Security benefits keep up with inflation. It's calculated based on the increase in the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) compared to the prior year. If inflation increases compared to the previous year, then the COLA is applied to increase benefits by a percentage in the next year to keep up with those costs.

Since the COLA calculation is only based on the CPI-W data from the third quarter of each year, we haven't yet seen the inflation data that could actually impact the COLA. However, analysts are making predictions about the 2027 COLA based on inflation in the first half of the year, and those predictions are quickly increasing.

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The recent significant jump in COLA predictions

Early 2026 COLA predictions were somewhat modest. The Senior Citizens League initially predicted a COLA between 2.5% and 2.8%. Since the 2026 COLA was 2.8%, those predictions suggested that inflation would remain about the same, resulting in a similar COLA for 2027.

But new inflation data has sharply changed those estimates, prompting significantly higher COLA predictions. In March, inflation was at 3.3%, but it jumped to 3.8% in April, driving up COLA predictions, too.

What's driving inflation

According to the U.S. Bureau of Labor Statistics, several factors are driving April's 3.8% consumer price index. Energy prices increased by 3.8% month over month and accounted for about 40% of the inflation increase. As of May 7, the price of gas had increased by 52% compared to when the war with Iran began, according to American Automobile Association (AAA) data, driving up the cost of not only energy, but also food and goods.

The cost of food increased by 3.2% in April, while food at home prices increased by 0.7%, which is the largest monthly gain the category has seen since August 2022. Additionally, shelter costs increased by 0.6%, further contributing to inflation.

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The Senior Citizens League's COLA predictions

The new inflation data prompted the Senior Citizens League to revise its earlier COLA prediction. While the Senior Citizens League initially projected a 2027 COLA of 2.5% to 2.8%, now the organization predicts a significantly higher COLA of 3.9%. The fact that the organization revised its prediction suggests it's likely that inflation could continue throughout the year, impacting the third-quarter data that the official COLA calculation is going to utilize.

Mary Johnson's COLA predictions

Mary Johnson, an independent analyst who has tracked the COLA for 30 years, initially projected a 1.2% COLA for 2027. But after the war with Iran began and gas and energy prices surged, Johnson revised the projection, predicting a COLA as high as 4.2%.

"This represents the highest rate of inflation since 2022 and a potentially significant erosion in many consumers' standard of living," Johnson said.

The potential Social Security benefits increase

The current average monthly Social Security benefit for retired workers is $2,081.16. If the Senior Citizens League's projection of a 3.9% COLA were implemented in 2027, average benefits would increase by $81.17 to $2,162.33. Retirees would receive about $974 more per year.

If Johnson's projection of a 4.2% COLA were implemented, average monthly benefits would increase by $87.41 to $2,168.57. With Johnson's higher projection, retirees would receive about $1,049 more per year.

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What COLA means for retirees

A COLA increase may seem positive, since retirees would receive larger benefits. But the COLA is only designed to keep up with inflation, so retirees don't necessarily come out ahead.

The COLA calculation is only based on quarter three inflation data. If inflation continues to increase in quarter four, the COLA won't reflect that higher inflation rate. Plus, the COLA is only adjusted once a year. Retirees already relying on Social Security have to cover increased costs, like grocery bills and utility expenses, that are being impacted by inflation right now. If inflation grows throughout the entire year, retirees would have gone nearly a year covering higher costs on 2026 Social Security benefit amounts that haven't increased.

Bottom line

There are still months of inflation data to review before the official COLA calculation is made, so the final COLA amount could shift in either direction. The Social Security Administration should announce the COLA in October, and then the increase should begin with January 2027 Social Security checks.

A higher COLA may not offset retirees' real cost pressures, especially since many finance and senior professionals have criticized the CPI-W for not accurately reflecting retirees' most common expenses, like health care. To ensure you're prepared, this may be a good time to connect with a financial advisor to review your retirement plan and see how your retirement savings stack up.

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