The 2026 Social Security cost-of-living adjustment, or COLA, is 2.8%. It automatically raises eligible Social Security and Supplemental Security Income payments to help benefits keep pace with inflation. The increase does not mean every beneficiary keeps 2.8% more. Medicare premiums, federal taxes, and the earnings test can affect the amount available to spend.
Table of Contents
- When the 2026 increase took effect
- How Social Security calculates COLA
- How Medicare affects the net increase
- Could the COLA increase your federal taxes?
- Planning when you still work
When the 2026 increase took effect
The 2.8% cola applies to nearly 71 million Social Security beneficiaries beginning with January 2026 benefits. SSI recipients received their increased payment on December 31, 2025, according to the Social Security Administration's COLA guidance. The estimated average retired-worker benefit increased from $2,015 to $2,071 per month. That $56 change is an average, not a guaranteed increase for every retiree.
To estimate your gross increase, multiply your previous benefit by 0.028. A $1,500 benefit, for example, would increase by about $42 before deductions and rounding. Your actual payment depends on your individual benefit and any deductions. Compare the gross benefit and each deduction on your benefit notice rather than judging the COLA only by the bank deposit.
How Social Security calculates COLA
COLA stands for cost-of-living adjustment. The adjustment is automatic under law, so beneficiaries do not need to apply or contact social Security to receive it. The Social Security Administration uses the Bureau of Labor Statistics' Consumer Price Index for Urban Wage Earners and Clerical Workers, known as CPI-W. For 2026, the agency measured CPI-W growth from the third quarter of 2024 through the third quarter of 2025.
A COLA requires a positive third-quarter increase over the prior computation quarter. The Social Security Administration's 2026 fact sheet reports that this calculation produced the 2.8% adjustment. This formula measures broad price changes; it does not track one household's exact expenses. A retiree facing unusually large housing, medical, or caregiving costs may experience a different personal inflation rate.
How Medicare affects the net increase
The standard Medicare Part B premium is $202.90 per month in 2026, an increase of $17.90. For beneficiaries who have the premium deducted from Social Security, that change can absorb part of the COLA. Suppose a beneficiary's gross Social Security increase is $42 per month and the full $17.90 standard premium increase applies.
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The amount left before other deductions would be about $24.10. Hold-harmless rules protect most beneficiaries whose Part B premiums are deducted from Social Security. The rule generally limits their premium increase to the amount of their Social Security increase, as explained in the Centers for Medicare & Medicaid Services' 2026 premium fact sheet. Review both figures when planning your budget:.
- Your new gross Social Security benefit
- Your 2026 Part B premium deduction
- Any other deductions shown on the payment notice
- The resulting net deposit
Could the COLA increase your federal taxes?
Social Security taxation depends on "combined income," not simply the size of the COLA. The federal calculation generally adds one-half of Social Security benefits to other income, including tax-exempt interest. The base amount is $25,000 for most single filers and $32,000 for married couples filing jointly. When combined income exceeds $34,000 for single filers or $44,000 for joint filers, up to 85% of Social Security benefits can be taxable under IRS Publication 915.
"Up to 85% taxable" does not mean an 85% tax rate. It means as much as 85% of the benefit may enter taxable income, where the filer's applicable tax rates then apply. SSI payments are not taxable. Because a COLA raises annual benefits, it may push combined income across a threshold or increase the taxable portion. Beneficiaries who may owe tax can submit Form W-4V for voluntary federal withholding, increase withholding from other income, or consider estimated-tax payments.
Planning when you still work
Social Security's earnings test matters if you receive retirement benefits while working below full retirement age. In 2026, Social Security withholds $1 in benefits for every $2 earned above $24,480. A different rule applies during the year you reach full retirement age.
The earnings limit is $65,160, and Social Security withholds $1 for every $3 earned above that amount before the month full retirement age is reached. No earnings limit applies after reaching full retirement age. Estimate wages against the appropriate limit before treating the full COLA as spendable income. A worker below full retirement age who earns $30,480 is $6,000 over the lower limit, which corresponds to $3,000 in benefits withheld under the $1-for-$2 rule.
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