The news: the Social Security Administration announced on Wednesday, October 14, 2026 that the 2027 cost-of-living adjustment (COLA) will be 3.6%, according to USA TODAY's reporting. The increase applies to nearly 72 million OASDI and SSI recipients.
The average $2,087.52 monthly benefit rises to $2,162.67 — about $75 more per month, roughly $900 a year, per AARP. But most seniors will keep less than the headline: rising Medicare Part B premiums are deducted from the check before the money reaches you, and the expected 2027 premium increase will take a bite out of the raise.
In this guide
What SSA announced on October 14
The COLA is set by the Social Security Act from the Consumer Price Index for Urban Wage Earners (CPI-W), calculated by the Bureau of Labor Statistics. With inflation running about 3.7% in September, the 2027 adjustment came in at 3.6%.
The timeline:
- January 2027 for retirement, survivor, and disability benefits.
- First SSI checks including the increase go out on December 31, 2026 (January 1 falls on a holiday).
- Your exact new amount appears at ssa.gov/myaccount in late November; paper letters follow in December.
Why the 3.6% raise has a hole in it
The COLA is a catch-up for prices that already rose — and if you are on Medicare, it is a catch-up with a hole in it, because Part B comes out of your check before you see the money. The working math: roughly $70 to $75 in from the COLA, about $6.60 out for the expected Part B increase — a real raise of roughly $64 to $68 a month.
That gap matters because health care costs have long risen faster than general inflation: an AARP survey of 1,023 adults age 50-plus in September found only 23% feel a COLA around 3.5% actually keeps up with rising prices.
One protection: the "hold harmless" provision generally stops the Part B increase from reducing your net benefit year over year. But in years with a small COLA and a large premium increase, the raise can be nearly wiped out.
What we know about 2027 Medicare Part B premiums
CMS has not yet announced the official 2027 Part B premium. The 2026 Medicare Trustees Report projected the standard monthly premium at approximately $209.50, up about $6.60 (3.25%) from $202.90 — the number behind most current estimates of the COLA offset.
Part B covers outpatient care, doctors' services, durable medical equipment, and preventive services. Two things to watch when the official number lands: the standard premium most enrollees pay, and IRMAA surcharges for higher-income beneficiaries. If your income rose in 2025, check whether you are tipping into a higher bracket.
Medicare's Annual Enrollment Period runs October 15 through December 7, 2026 — starting today. Before you compare plans, see our guides to Medicare Advantage's shrinking options for 2027 and the 2027 Star Ratings scorecard.
What it means for your budget
The average-beneficiary math: $75.15 more per month from the COLA, minus roughly $6.60 in higher Part B premiums, leaves about $68.50 in new spending power — before higher drug costs, Part D premium increases, and general inflation on food, housing, and energy.
With open enrollment starting today, this is your annual window to make sure the extra dollars are not silently absorbed by a more expensive plan — a premium increase or a drug moved to a higher tier can easily cost more than the $68 a month the COLA delivers.
What to do now: 5 steps before January
- Read your Annual Notice of Change (ANOC). It lists exactly what changes for 2027 — premiums, deductibles, drug tiers, network. Compare any increase against your expected ~$68 net COLA gain.
- Re-shop during the October 15 – December 7 enrollment window. Changes take effect January 1, 2027. Use Medicare Plan Finder and the 2027 Star Ratings to compare total annual cost — not just the monthly premium.
- Verify your prescriptions' tiers. A drug moving up a tier can add hundreds of dollars a year — dwarfing the COLA raise. Check the formulary before you auto-renew.
- Check for IRMAA exposure. If your 2025 tax return shows higher income, you may owe Part B and Part D surcharges in 2027. You can appeal if a life event (retirement, divorce, death of a spouse) lowered your income since.
- Watch for enrollment-season scams. Never give your Medicare number to a cold caller or click links in unsolicited messages. SSA and CMS never ask for payment or personal details by phone or text.
Frequently asked questions
When does the 2027 COLA take effect?
January 2027 for Social Security benefits; SSI recipients see it first in checks paid December 31, 2026. Your exact new amount will be at ssa.gov/myaccount in late November or in a paper letter in December.
How much more will my Social Security check be?
About 3.6% — roughly $75 per month on the average $2,087.52 benefit (~$900 per year, per AARP). But Part B is deducted from the same check, so your net increase will be smaller — likely around $64 to $68 a month for the average retiree.
Can the Medicare premium increase eat my whole raise?
Almost never. The "hold harmless" provision generally stops the Part B increase from reducing your net check below last year's amount for most beneficiaries. But in a year with a small COLA and a large premium increase, the raise can be nearly wiped out — which is why comparing plan costs each fall matters.
Where can I verify this story?
The USA TODAY report on the October 14 announcement covers the 3.6% COLA, the $75.15 average increase, and the Part B offset. The official 2027 Part B premium will be announced by CMS in the coming weeks and trackable at medicare.gov.