Most people qualify for Medicare when they turn 65. Some people qualify sooner because they receive disability benefits, have ALS, also called Lou Gehrig's disease, or have permanent kidney failure. Work history usually decides whether Part A is free. It does not always decide whether Medicare is available.
The Quick Medicare Eligibility Check
You may qualify if at least one of these situations applies:
- You are 65 or older and meet the United States citizenship or residency rules.
- You are under 65 and have received Social Security disability benefits for 24 months.
- You have ALS and receive Social Security disability benefits.
- You have end-stage renal disease, need regular dialysis or a kidney transplant, and meet the related work or family requirements.
These are the main doors into Medicare. Think of age or a qualifying medical situation as the key that opens the door. Your work record then helps decide what you pay for Part A.
Most People Qualify at Age 65
Age 65 is the most common starting point. A person generally must be a United States citizen or a lawful permanent resident who has lived in the country continuously for the five years immediately before applying.
Turning 65 does not guarantee that enrollment will happen by itself. Automatic enrollment often depends on whether you already receive Social Security or Railroad Retirement benefits. If you are not receiving those benefits, you may need to sign up.
The official Medicare starting guide explains how age, retirement benefits, and current coverage affect the next step.
You Can Qualify Before 65 Through Disability
A person under 65 generally receives Medicare automatically after getting Social Security disability benefits for 24 months. Coverage may begin earlier if the person turns 65 before that waiting period ends.
Supplemental Security Income, often called SSI, does not qualify someone for Medicare by itself. A person receiving SSI must still meet one of Medicare's age, disability, ALS, or kidney failure rules. The Social Security Medicare guide explains this distinction.
ALS Does Not Have the 24-Month Medicare Wait
ALS stands for amyotrophic lateral sclerosis. It is also called Lou Gehrig's disease. ALS damages the nerve cells that control voluntary muscle movement and breathing.
People with ALS can get Medicare in the same month that Social Security disability benefits begin. They do not have the usual 24-month disability waiting period.
The first step is applying for Social Security disability benefits. Medicare then follows that benefit decision.
Permanent Kidney Failure Has Its Own Rules
People of any age may qualify because of end-stage renal disease, or ESRD. This means the kidneys no longer work and the person needs regular dialysis or has had a kidney transplant.
One related work or family rule must also apply. The person may qualify through their own work, eligibility for Social Security or Railroad Retirement benefits, or as the spouse or dependent child of someone who meets the requirement.
Coverage timing can depend on dialysis training, the dialysis start date, or a transplant schedule. Use the official Medicare ESRD guide for the timing that applies to your care.
Ten Years of Work Usually Makes Part A Premium-Free
Most people pay no monthly Part A premium because they or a spouse paid Medicare taxes long enough while working, generally for at least 10 years. This is called premium-free Part A.
Not having that work history does not always mean you are shut out of Medicare. You may be able to buy Part A, and Part B may still be available if you meet its age and residency rules. The official Medicare cost page lists the current rules and premiums.
Your Spouse's Work Record May Help With Part A
Medicare covers people one at a time. You do not join a spouse's Medicare plan the way you might join an employer family plan.
A spouse's work record can still help you qualify for premium-free Part A. You must meet your own age or medical eligibility rule, then Social Security checks whether your record or your spouse's record can provide premium-free Part A.
Who Does Not Qualify Yet
You may not qualify for Medicare yet if you are under 65 and do not meet the disability, ALS, or kidney failure rules. Retiring at 62 does not create Medicare eligibility by itself.
Low income alone also does not make someone eligible for Medicare. It may qualify a person for Medicaid. If someone already has Medicare, limited income and resources may also qualify that person for a Medicare Savings Program that helps pay certain Medicare costs.
A person age 65 or older who does not meet the citizenship or residency rules may need to wait or use another source of health coverage. Social Security makes the final eligibility decision.
A Simple Way to Check Your Situation
- Start with your age.
- If you are under 65, check disability benefits, ALS, or permanent kidney failure.
- Check citizenship or lawful permanent residency requirements.
- Review your work record and your spouse's work record for premium-free Part A.
- Ask Social Security whether enrollment will be automatic or requires an application.
Once you know that you qualify, the next decision is how to receive your benefits. Our Medicare Parts A, B, C, and D guide explains the pieces. The Original Medicare and Medicare Advantage comparison explains the two main coverage choices.