Social Security & Medicare · How They Work Together
Plain English. Five calm steps. No pressure.
They're two different programs — one is your income, the other is your health insurance — but they're closely tied. Social Security handles your Medicare sign-up, and your Medicare premiums usually come out of your Social Security check. Here's how to make them work together.
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Your Path
Read them in order, or jump straight to what you need.
Two programs, one agency to sign up.
Age 65 for Medicare. Age 62–70 for Social Security.
Deductions, protections and higher-income charges.
Estimate your raise after Medicare premiums.
Your account, your card, and staying safe.
Step 1 How They Connect
Different Programs, Closely Linked
Social Security is run by the Social Security Administration (SSA). Medicare is run by the Centers for Medicare & Medicaid Services (CMS). But for most people, Social Security is where Medicare begins.
| Social Security | Medicare | |
|---|---|---|
| What it is | Monthly income (retirement, disability, survivors) | Health insurance |
| Run by | Social Security Administration | CMS (with private plans for Parts C and D) |
| Age to start | As early as 62; full benefits at 66–67; extra credits until 70 | 65 (earlier with certain disabilities) |
| Where you sign up | Social Security | Parts A & B: Social Security · Parts C & D: the plan |
| Paid for by | Payroll taxes while you work | Payroll taxes, plus premiums you pay |
If you start benefits at least 4 months before you turn 65, you're enrolled in Parts A and B automatically. Your Medicare card arrives about 3 months before your birthday.
AutomaticYou'll need to sign up for Medicare yourself. You don't have to start your retirement benefits to get Medicare. How to sign up →
Sign up yourselfStep 2 Timing
The Most Common Mix-Up
Many people think Medicare starts at their full retirement age. It doesn't. For anyone born in 1960 or later, full retirement age is 67 — but Medicare eligibility still begins at 65. Waiting to sign up for Medicare until 67 could cost you a lifelong penalty.
Your monthly benefit is permanently reduced — by up to 30% if your full retirement age is 67.
You get your full benefit. For people born in 1960 or later, that's age 67.
Your benefit grows about 8% for each year you wait past full retirement age, up to 70.
Delaying Social Security? Don't delay Medicare by mistake. If you're waiting to claim Social Security and don't have health coverage from a current job, sign up for Medicare around 65 anyway. See how late penalties work →
Still working and claiming early? If you start Social Security before full retirement age and keep working, Social Security may hold back some benefits if your earnings are above a yearly limit. Those benefits aren't lost — your monthly amount is raised later to make up for them. On disability? You'll usually get Medicare automatically after 24 months of Social Security disability benefits — right away if you have ALS.
Step 4 Your 2027 Check
Your Raise, After Medicare
Social Security benefits rise 3.6% starting with January 2027 payments. Your actual raise depends on what happens to your Medicare premiums. Enter your numbers below.
Estimate only. Uses the 3.6% 2027 cost-of-living adjustment announced by Social Security. Social Security rounds benefits down to the dollar and applies its own rules. The 2027 Part B premium is usually announced by CMS in mid-November. Other deductions, like plan premiums or tax withholding, aren't included. Your official amount will be in your COLA notice and your my Social Security account.
Step 5 Manage It Online
Your Account, Your Records
See your benefit estimates, get your COLA notice early, print a benefit letter, change your address or direct deposit, and request a replacement Medicare card.
See your Medicare claims, the preventive services you're due for, your plan, and print an official copy of your Medicare card.
Social Security: 1-800-772-1213 (TTY 1-800-325-0778). Medicare: 1-800-MEDICARE (TTY 1-877-486-2048).
Protect your numbers. Social Security and Medicare won't call, text or email to threaten you, demand payment, or ask you to "verify" your number for a new card or COLA. Hang up, and call the official number yourself. Report scams to the Social Security Inspector General at oig.ssa.gov.
Ready to choose your Medicare coverage? Choose your state to compare plans and enroll yourself:
Signing up through Social Security. Part A guide →
Part B guide →
Why Medicare timing matters. Penalty guide →
Help paying your premiums. Savings programs →
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Common Questions
No. You can sign up for Medicare at 65 without starting your Social Security retirement benefits. If you aren't collecting Social Security yet, you'll need to sign up for Medicare yourself through Social Security.
No. Medicare eligibility starts at 65. Full retirement age for Social Security is 67 for anyone born in 1960 or later. Waiting until 67 to sign up for Medicare can lead to late penalties and gaps in coverage.
Social Security announced a 3.6% cost-of-living adjustment for 2027, about $75 more per month for the average retiree. It starts with benefits paid in January 2027. The amount you actually receive also depends on your 2027 Medicare premiums.
Usually, yes. If you get Social Security, your Part B premium is deducted automatically. You can also choose to have Medicare Advantage or Part D plan premiums deducted.
For most people, the "hold harmless" rule prevents a Part B premium increase from being larger than their Social Security raise. It doesn't protect everyone — for example, people who pay income-related premiums (IRMAA) or who are new to Medicare.
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