Social Security benefits are currently projected to rise by 3.8% in 2027, potentially giving retirees, disabled workers, survivors and Supplemental Security Income recipients a larger cost-of-living adjustment than the 2.8% increase applied in 2026.
The July estimate from The Senior Citizens League is not official. The Social Security Administration will calculate the final increase after inflation figures for July, August and September become available.
A separate forecast from independent Social Security and Medicare analyst Mary Johnson places the possible COLA at 3.7%. About 75.6 million people received Social Security, SSI or both in May 2026, showing how widely the final decision will be felt.
Why the projection is 3.8%
The estimate follows a sharp slowdown in June inflation. The Consumer Price Index fell 0.4% from May, while prices were 3.5% higher than a year earlier, according to the U.S. Bureau of Labor Statistics.
Energy prices fell 5.7%, including a 9.7% decline in gasoline prices. Core inflation, which excludes food and energy, was unchanged for the month and increased 2.6% over the year.
The CPI-W, the measure used to calculate Social Security adjustments, rose 3.5% over the year but declined 0.5% during June before seasonal adjustment. Earlier inflation readings had sent some 2027 Social Security COLA forecasts higher.
Estimated increase by benefit amount
A 3.8% adjustment would provide the same percentage increase to eligible recipients, but the dollar gain would depend on the current benefit.
- $1,000 monthly benefit: $38 increase to approximately $1,038
- $1,500 monthly benefit: $57 increase to approximately $1,557
- $2,000 monthly benefit: $76 increase to approximately $2,076
- $2,500 monthly benefit: $95 increase to approximately $2,595
- $3,000 monthly benefit: $114 increase to approximately $3,114
The average retired-worker benefit was $2,082.76 in May 2026. A 3.8% adjustment would add about $79.14, raising it to approximately $2,161.90 before deductions.
How the official COLA is calculated
The agency compares the average CPI-W for July, August and September 2026 with the average for the same months in 2025. June data influence forecasts but do not enter the final calculation.
The July inflation report, scheduled for August 12, will provide the first figure used in the formula. The official percentage is expected in October after September data are released.
The increase would apply automatically to retirement, disability, survivor, family and SSI benefits. No application is required.
Social Security’s adjustment becomes effective with December 2026 benefits, generally paid in January 2027. Because January 1 is a federal holiday, the January SSI payment is expected on December 31, 2026. That early deposit would not be an additional payment.
Retirement, disability and survivor deposit dates depend partly on birth dates and when benefits began. The Social Security payment schedule explains how the payment groups are arranged.
Medicare may reduce the net increase
Many beneficiaries have Medicare Part B premiums deducted from Social Security, so their bank deposit may rise by less than the gross COLA.
The standard Part B premium is $202.90 per month in 2026. The Medicare Trustees Report projects it could reach about $209.50 in 2027, a $6.60 increase. The final premium has not been announced.
For a $2,000 monthly benefit, a 3.8% COLA would add $76. After the projected Part B increase, the remaining gain would be about $69.40 before taxes or other deductions.
The hold-harmless rule prevents a Part B premium increase from reducing the Social Security payments of many beneficiaries below the previous year’s level. However, it may allow some or all of the COLA to be absorbed by the premium.
Confirmed Medicare Part D changes
The maximum Part D deductible will rise from $615 in 2026 to $700 in 2027. Plans may charge less, and some medicines may not be subject to the deductible.
The annual out-of-pocket threshold for covered Part D drugs will be $2,400. Actual expenses will depend on the plan, prescriptions, pharmacy network and eligibility for financial assistance.
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What beneficiaries should do now
The 3.8% forecast can help with preliminary budgeting, but it should not be treated as guaranteed income. Inflation during the third quarter could move the final percentage higher or lower.
Beneficiaries should compare any estimated increase with possible Medicare premiums, drug costs, taxes and other deductions. Personalized benefit notices are normally issued in December and made available through my Social Security accounts.
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