The 2026 Social Security COLA is 2.8 percent — the smallest increase in four years. For the average retired worker, that translates to roughly $56 more per month before taxes and deductions. But here’s the part the headlines skip: Medicare Part B premiums are also going up in 2026, and that deduction comes straight out of your Social Security check before you ever see it.
So what do retirees actually keep? Let’s walk through the real numbers.
The 2.8% COLA — what it means in dollars
The Social Security Administration calculates the annual cost-of-living adjustment based on changes in the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W). For 2026, that increase is 2.8 percent.
Here’s what that looks like for different beneficiary groups, straight from the SSA’s 2026 fact sheet:
| Beneficiary Group | Before COLA | After COLA | Monthly Increase |
|---|---|---|---|
| All retired workers | $2,015 | $2,071 | +$56 |
| Aged couple, both receiving | $3,120 | $3,208 | +$88 |
| Disabled worker | $1,586 | $1,630 | +$44 |
| Widowed mother and two children | $3,792 | $3,898 | +$106 |
These are averages — your personal increase depends on your benefit amount. But the math is the same: multiply your current monthly benefit by 0.028 to estimate your gross COLA increase.
The maximum Social Security benefit for someone retiring at full retirement age in 2026 is $4,152 per month, up from $4,018 in 2025.
The Medicare deduction — where your raise really goes
Here’s the part that catches many retirees off guard. Your Medicare Part B premium is deducted from your Social Security check before it hits your bank account. When Part B goes up, it directly reduces the net impact of your COLA.
For 2026, the standard Medicare Part B premium is $185.00 per month. That’s up from $174.70 in 2025 — an increase of $10.30 per month.
Run the math on the average retired worker:
- Gross COLA increase: $56.00/month
- Part B premium increase: −$10.30/month
- Net increase after Medicare: $45.70/month
Over a full year, that $56 monthly bump becomes roughly $672 in gross additional income — but after the Part B increase, you’re looking at about $549 in actual take-home. Still meaningful, but a different number than the headline suggests.
Higher-income retirees: IRMAA adds another layer
If your modified adjusted gross income (MAGI) exceeds certain thresholds, you may pay more than the standard Part B premium through the Income-Related Monthly Adjustment Amount, commonly known as IRMAA.
For 2026, IRMAA surcharges kick in at:
- $106,000 or above for individual filers
- $212,000 or above for joint filers
At the highest IRMAA tier, the total Part B premium can be significantly more than $185 — meaning the COLA’s net benefit shrinks even further. IRMAA is based on your tax return from two years prior, so a retirement rollover or one-time capital gain could push you into a higher tier even if your current income is lower.
If you think IRMAA may apply to you, it’s worth reviewing your income strategy with a financial professional before the surcharge hits.
Four things to do right now
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Check your Social Security statement. Log in at ssa.gov to see your estimated 2026 benefit. The statement shows your personal COLA-adjusted amount — don’t rely on averages alone.
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Review your Medicare coverage during Open Enrollment. Medicare Open Enrollment runs from October 15 through December 7 each year. This is your window to compare plans and make sure your current coverage still fits your needs and budget.
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Factor Medicare into your retirement income plan. The COLA helps, but it doesn’t keep pace with healthcare costs for everyone. Understanding how premiums, deductibles, and out-of-pocket costs interact with your Social Security income is a key part of retirement planning.
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Talk to a retirement income specialist. A quick review can help you understand how the 2026 COLA affects your specific situation — and whether there are strategies to keep more of what you’ve earned.
Understanding how an indexed annuity can provide retirement income is one way to build a more predictable income stream alongside Social Security. And if you’re comparing retirement account options, our guide on 401(k) vs. IRA can help you decide where to focus your savings.
The bottom line
The 2026 Social Security COLA of 2.8 percent is a real increase — but it’s not the full picture. Medicare Part B premiums, IRMAA surcharges, taxes, and rising healthcare costs all shape what retirees actually take home.
Knowing the real numbers puts you in control. A retirement income review can help you see the full picture and make informed decisions about your benefits, coverage, and income strategy.
Have questions about how the 2026 COLA affects your retirement plan? Call Trek Insurance Solutions at 888-960-0442 or visit trekis.net to schedule a retirement income review with a licensed advisor.