Medicare 2026

Medicare Premiums Taken From Social Security in 2027: How the Deductions Work

For most people on Medicare, the Part B premium doesn't arrive as a separate bill — it's quietly subtracted from the Social Security payment that lands in the bank each month. The mechanics are usually invisible, which is fine when everything runs smoothly, but confusing the first time something changes: a cost-of-living adjustment, a new drug plan, a jump in income from a few years back. Here's a plain-English walk-through of how the deductions work heading into 2027, what's known today, and what to watch for.

The basic setup

If you receive Social Security, your Part B premium is almost always pulled from that benefit automatically. If you're entitled to both Social Security and Railroad Retirement benefits, the premium comes out of the Railroad Retirement payment instead. And if a state is paying your Part B premium under a "buy-in" agreement (for people who qualify through Medicaid), that arrangement takes priority over everything else.

One quirk trips up a lot of people: Social Security pays benefits a month behind. The payment you receive in December is actually November's benefit — but the Part B premium withheld from that December payment is December's premium. So the month on the premium and the month on the benefit don't line up on the same deposit.

What's confirmed for 2027 — and what isn't

A few 2027 numbers are already set. The Social Security Administration announced on October 14, 2026 a 3.6% cost-of-living adjustment (COLA) for benefits payable beginning January 2027. On the drug side, the Part D out-of-pocket cap rises to $2,400 in 2027 (up from $2,100 in 2026), the maximum Part D deductible any plan may charge is $700, and the national Part D base beneficiary premium — the figure used to calculate the late-enrollment penalty — is $41.33. Actual plan premiums are set plan by plan.

What is not set yet, as of this writing: the 2027 standard Part B premium, the 2027 Part B deductible, and the 2027 IRMAA income brackets and surcharges. CMS releases those in the fall, typically November. For context, the 2026 standard Part B premium is $202.90 a month, higher for people whose income is above a certain threshold. Until CMS publishes the 2027 figures, no one can honestly tell you the exact dollar amount that will be withheld.

"Hold harmless": what it does and doesn't do

Section 1839(f) of the Social Security Act protects most people's Social Security (and Railroad Retirement) checks from dropping year to year solely because the Part B premium went up. SSA calls this "hold harmless" or variable premium protection.

To be covered in a given year, SSA's rules require that you were entitled to Social Security benefits for November and December, had the December and January Part B premiums deducted from those benefits, received a cash benefit for November and December, and would otherwise see a smaller January payment than December solely because of the premium increase. When the test is met, SSA reduces the premium so your January payment, after the premium is taken out, equals your December payment.

Two important carve-outs:

• If you pay IRMAA — the income-related surcharge for higher incomes — hold harmless does not apply to you.
• The protection does not extend to state buy-in. When a state begins paying your Part B premium through a buy-in agreement, the state pays the regular, non-reduced premium.

When premiums aren't withheld

If your Social Security benefits are suspended — SSA gives the example of a disability benefit suspended during a continuing disability investigation — Part B premiums stop being deducted and you'll be billed quarterly instead. If you don't collect Social Security yet, you'll also receive a direct bill.

Part D premiums through Social Security

You can have a Medicare drug plan's premium withheld from your Social Security payment too, but the request has to go to the plan — not to Social Security. Per Medicare.gov, it may take up to three months to start, and your plan will bill you directly for any months before withholding kicks in. If an employer plan pays part of your drug coverage premium, Social Security can't withhold your share.

Switching plans around Open Enrollment adds another wrinkle. Medicare.gov notes that if you change plans late in the window, premium withholding for the former plan might continue into January or February; when that happens, Social Security will refund the overpayment. And if you move to a different plan offered by the same company, you still need to contact the new plan to set up withholding and pay the new plan directly until it starts.

Key dates and ongoing enrollment flexibility

Annual Open Enrollment for 2027 coverage runs October 15 – December 7, 2026, with changes effective January 1, 2027.

If you have Medicaid or qualify for Extra Help, since 2025 you have a monthly Special Enrollment Period that lets you move to Original Medicare with a stand-alone Part D plan, or switch stand-alone Part D plans. Full-benefit dual-eligible individuals can also join an integrated Dual Eligible Special Needs Plan (D-SNP) in any month.

A neutral word on coverage choices

As you look at how premiums come out of your check, you may also be weighing Original Medicare (often paired with a Medigap policy and a stand-alone Part D plan) against Medicare Advantage. Each path has trade-offs — around provider access, cost-sharing structure, extra benefits, and how prescription drug coverage is bundled. There is no single "best" answer; the right fit depends on your health, finances, and preferences.

Where to get official, personalized information

For the most current figures, plan details for your area, and help with your own situation, go to Medicare.gov or call 1-800-MEDICARE (1-800-633-4227), TTY 1-877-486-2048, available 24/7.