Social Security’s 2027 raise could shrink before it arrives. How Medicare costs may eat into the $72 boost

Social Security beneficiaries could receive a cost of living adjustment (COLA) of about 3.5% in 2027, which will add about $72 a month to the average retired worker’s benefit. But higher Medicare premiums and other rising expenses may reduce the financial relief retirees receive from the increase.

The estimate is not yet an official benefit increase. The Social Security Administration will announce the 2027 COLA on October 14 after the September inflation data is released. And a separate Medicare premium announcement is expected later in the year. Meaning beneficiaries will need to account for both figures when planning their budgets.

Social Security’s 2027 COLA Could Add About $72 a Month

The Senior Citizens League and independent Social Security and Medicare analyst Mary Johnson have estimated that the 2027 COLA could reach 3.5%, as per reports. AARP has projected a slightly higher adjustment of 3.6%.


At a 3.5% increase, the average retired worker’s monthly benefit would rise from approximately $2071 to $2143, adding about $72 a month. The actual increase for an individual beneficiary would depend on their current benefit.

The COLA is calculated using the average Consumer Price Index for Urban Wage Earners and Clerical Workers. So that would be for July, August and September compared with the average for the same months a year earlier. September’s inflation reading is the final piece of data needed to calculate the adjustment.

The 3.5% estimate would exceed the 2.8% COLA that took effect in January this year. However the final 2027 adjustment could still change before the Social Security Administration announces it on October 14.

Medicare Part B Premiums Could Reduce the Increase

One of the main costs that could reduce the increase retirees receive is the Medicare Part B premium. For beneficiaries enrolled in both programs this premium is generally deducted directly from their Social Security payments.

The 2026 Medicare Trustees Report projects that the standard monthly Part B premium will increase from $202.90 in 2026 to $209.50 in 2027. That would be a rise of $6.60 per month.

Based on a projected $72 COLA increase, the additional Part B premium would absorb about 9% of the monthly raise. Beneficiaries would still receive an increase if both projections hold, but the amount deposited into their accounts would be smaller than the gross benefit increase.

The $209.50 figure is a projection rather than a finalized 2027 premium. The official amount is expected to be announced between late October and early November.

Medicare Part D Costs Could Add to Retirees’ Expenses

Prescription drug expenses could also affect how much money beneficiaries have available after receiving their Social Security payments.

The standard Medicare Part D deductible is set to increase from $615 in 2026 to $700 in 2027, according to TheStreet. The deductible is an out-of-pocket expense and does not directly reduce a Social Security deposit in the way the Part B premium generally does.

Monthly prescription drug plan premiums could also change. As per USA Today report, zero dollar premiums for Medicare Part D plans would be eliminated for enrollees who do not receive low-income subsidies.

The report cited analyst Mary Johnson, who said her own Part D plan was expected to move from a zero dollar monthly premium in 2026 to more than $19 in 2027. This is an example of a potential change for an individual enrollee not a universal premium amount for all beneficiaries.

The actual effect on retirees will depend on their prescription drug coverage and individual plan costs.

Higher Heating and Fuel Costs Could Put More Pressure on Budgets

Healthcare expenses are not the only costs that could limit the value of the 2027 COLA. Rising energy and transportation expenses could also affect retirees’ household budgets.

As per USA Today, the National Energy Assistance Directors Association expects heating a home with heating oil to cost 50% more this winter than last winter.

Meanwhile conflict in the Middle East is expected to keep gasoline and diesel prices high and so these potential increases could put further pressure on beneficiaries who rely on Social Security to cover daily expenses. Even when monthly benefits rise, higher costs for essential goods and services can reduce the financial relief retirees experience.