Medicare 2026

Social Security's 2027 COLA Is 3.6%: What It Means for Your Medicare Costs

HEADLINE: Social Security's 2027 COLA Is 3.6%: What It Means for Your Medicare Costs

On October 14, 2026, the Social Security Administration announced that the 2027 cost-of-living adjustment (COLA) will be 3.6 percent. The increase will show up in Social Security benefits payable beginning January 2027, with Supplemental Security Income (SSI) payments reflecting the change starting December 31, 2026.

That 3.6 percent bump is the largest COLA since the 8.7 percent increase for 2023. By comparison, the COLAs for the past three years were 3.2 percent (2024), 2.5 percent (2025), and 2.8 percent (2026). After a stretch of smaller adjustments, a slightly larger raise is welcome news for many households.

But if you have Medicare, your Social Security raise and your Medicare costs are closely linked. Here's a plain-English look at what the 2027 COLA does and doesn't tell us yet, and how to think about your overall budget heading into the new year.

Why your "raise" and your Medicare costs are connected

Most people with Medicare have their Part B premium deducted directly from their Social Security payment. That means the number you actually see deposited each month reflects both the COLA (which pushes your benefit up) and the Part B premium (which is subtracted before you receive the money).

So the real question for 2027 isn't just "How big is the COLA?" It's "How does the COLA compare to the 2027 Part B premium?" Until the Centers for Medicare & Medicaid Services (CMS) announces the 2027 Part B standard premium and deductible — which typically happens in the fall — nobody can tell you the exact dollar change in your monthly check. We'll know more once CMS releases those figures.

The hold-harmless provision: a cushion for most, but not everyone

There's a long-standing rule called the "hold-harmless" provision that protects most people from seeing their net Social Security check shrink because of a Part B premium increase. In practical terms: for most beneficiaries who have Part B deducted from Social Security, an increase in the Part B premium can't reduce this year's net payment below last year's net payment.

That cushion does not apply to everyone. People who are generally not protected by hold-harmless include:

• Those new to Medicare
• Those new to Social Security
• People who pay their Part B premium directly rather than through Social Security
• People who pay an income-related monthly adjustment amount (IRMAA) because of higher income

If you fall into one of those groups, your experience in 2027 may look different from a neighbor who's been on both programs for years.

What we know about Part D for 2027

While some 2027 Medicare numbers are still pending, several Part D (prescription drug coverage) figures are set:

• The annual out-of-pocket cap on covered Part D drugs will be $2,400 in 2027, up from $2,100 in 2026. Once your out-of-pocket spending on covered drugs reaches that cap, you pay $0 for covered Part D drugs for the rest of the calendar year.
• The maximum deductible a Part D plan may charge in 2027 is $700. Plans can charge less; they can't charge more.
• The base beneficiary premium for Part D in 2027 is $41.33. This is a national base figure used in the program's calculations — not the premium of any particular plan. Actual plan premiums are set plan by plan and vary widely.

The out-of-pocket cap in particular is worth noting if you take expensive medications. It limits how much you can spend out of pocket on covered drugs in a year, which can make annual costs much more predictable.

What's still unknown for 2027

To be straightforward about what hasn't been announced yet:

• The 2027 Part B standard premium
• The 2027 Part B deductible
• The 2027 IRMAA income thresholds and surcharge amounts

CMS typically announces these figures in the fall. Until then, any specific dollar numbers you see floated for 2027 Part B costs or IRMAA brackets are not official. It's reasonable to wait for the official release before recalculating your budget.

Key enrollment windows to keep in mind

Even with some numbers still pending, the Medicare calendar continues on schedule:

• Medicare Open Enrollment runs October 15 through December 7 each year. During this window, you can switch between Original Medicare and Medicare Advantage, change Medicare Advantage plans, or change Part D drug plans. Changes take effect January 1.
• The Medicare Advantage Open Enrollment Period runs January 1 through March 31. During this window, people already in a Medicare Advantage plan can switch to a different Medicare Advantage plan or return to Original Medicare (and add a Part D plan).

If you're reviewing coverage, it's worth looking at your plan's Annual Notice of Change, which plans send out before Open Enrollment, so you can see what's changing for the coming year.

Thinking about Original Medicare vs. Medicare Advantage

Many people ask which path makes more sense: Original Medicare (often paired with a Medigap supplement and a stand-alone Part D plan) or Medicare Advantage. There isn't a universal answer — both have real trade-offs.

• Original Medicare generally offers broad access to providers nationwide who accept Medicare, and a Medigap policy can help with out-of-pocket costs for Part A and Part B services. You'd typically add a separate Part D plan for drugs. Premiums for Medigap and Part D are additional.
• Medicare Advantage plans bundle Part A, Part B, and usually Part D, often with networks and prior authorization rules, and may include extra benefits. Costs and benefits vary significantly by plan and location.

The right fit depends on your doctors, your medications, your travel patterns, your budget, and how you feel about networks and paperwork. It's a personal decision, not a one-size-fits-all answer.

Where to get official information

For official, personalized information, go to Medicare.gov or call 1-800-MEDICARE (1-800-633-4227), TTY 1-877-486-2048, 24 hours a day, 7 days a week. For details on Medicare costs and IRMAA as 2027 figures are released, CMS posts updates at Medicare.gov.

A 3.6 percent COLA gives most people a bigger Social Security benefit in 2027. How much of that raise stays in your pocket will become clearer once CMS announces the remaining 2027 Medicare numbers this fall.