The Basic Age and Citizenship Requirements

You become may be able to access for Medicare at age 65, regardless of your work history, as long as you are a U.S. citizen or permanent resident who has lived in the country for at least five consecutive years. You do not have to be retired to enroll — age 65 is the threshold, whether you are still working or not.

There are two exceptions to the age 65 rule. If you have received Social Security Disability Insurance (SSDI) for 24 consecutive months, you become may be able to access for Medicare at any age. If you have end-stage renal disease (ESRD) — permanent kidney failure requiring dialysis or transplant — you may be may be able to access regardless of age, though you will need medical documentation and a waiting period applies.

Key Takeaways

  • You are may be able to access for Medicare at age 65 if you are a U.S. citizen or permanent resident who has lived in the country for at least five consecutive years.
  • If you have received SSDI for 24 months, you become may be able to access for Medicare before age 65, and the program will contact you automatically.
  • You must enroll during your Initial Enrollment Period, which runs three months before your 65th birthday through three months after, or face a permanent penalty on your premiums.
  • If you are still working and covered by an employer health plan at 65, you may delay Part B enrollment without penalty if your employer has 20 or more employees.
  • Permanent residents must have lived in the U.S. for five consecutive years and have a valid green card to be may be able to access at 65.

How Your Work History Affects Medicare may be able to access

You do not need a specific number of work years to be may be able to access for Medicare at 65. However, your work history determines whether you pay a premium for Part A (hospital insurance). If you or your spouse paid Medicare taxes for at least 10 years (40 quarters), you receive Part A with no monthly premium. If you have fewer than 10 years of Medicare tax payments, you will pay a monthly premium for Part A, which varies based on how many quarters you have.

If you have never worked or have very few work quarters, you can still enroll in Medicare at 65 and purchase Part A coverage. The premium will be higher than for someone with substantial work history, but the coverage is the same.

Enrollment important date and Your Initial Enrollment Period

Your Initial Enrollment Period (IEP) is a seven-month window: three months before the month you turn 65, the month you turn 65, and three months after. You must enroll during this window to avoid a permanent late-enrollment penalty on your Part B and Part D premiums.

If you miss your IEP, you can still enroll during the General Enrollment Period, which runs January 1 through March 31 each year. However, your coverage will not start until July 1 of that year, and you will pay a 10 percent penalty on your Part B premium for each full year you delayed enrollment. This penalty stays with you for life, so enrolling on time matters.

If you are still working at 65 and covered by an employer health plan with 20 or more employees, you may delay Part B enrollment without penalty. You have eight months after you leave your job or lose employer coverage to enroll in Part B without penalty — this is called your Special Enrollment Period.

Special Situations: Disability and Kidney Disease

If you are receiving SSDI, Social Security will contact you automatically about Medicare enrollment when you have been on disability for 24 months. You do not have to do anything — your Medicare coverage will begin the 25th month of your SSDI may be able to access. Part A is free for SSDI recipients, and you can choose whether to enroll in Part B.

If you have end-stage renal disease, you become may be able to access for Medicare regardless of age, but a three-month waiting period applies from the first day of dialysis treatment or the month of your kidney transplant. You will receive information about enrollment from your dialysis center or transplant team. Like SSDI recipients, you receive Part A at no premium.

Permanent Residents and Non-Citizens

If you are a permanent resident (green card holder), you are may be able to access for Medicare at 65 under the same rules as U.S. citizens, provided you have lived in the United States for at least five consecutive years. The five years must be continuous — if you leave the country for more than six months, the clock resets.

Undocumented immigrants are not may be able to access for Medicare. Temporary visa holders (such as H-1B or student visa holders) are not may be able to access unless they also have a green card. If your immigration status changes, contact Social Security to update your records before you turn 65.

What Happens If You Miss Your Enrollment Window

If you do not enroll during your Initial Enrollment Period and you do not may have access to for a Special Enrollment Period, you will pay a permanent penalty. The Part B late-enrollment penalty is 10 percent of the standard premium for each full year you delayed — if you wait five years, you pay 50 percent more than the standard premium, forever.

The Part D (prescription drug) late-enrollment penalty works the same way: 1 percent of the national average Part D premium for each month you were without creditable drug coverage. These penalties do not go away if you eventually enroll, so the cost of missing your important date is substantial and lifelong.

If you believe you have a valid reason for missing your important date — such as a serious illness or a mistake by Social Security — you can request a hearing with Social Security to ask for an exception. This is not may provide, but it is worth attempting if your situation was genuinely beyond your control.

Income and Asset Limits

Medicare itself has no income or asset limits for enrollment at 65. However, if your income is low, you may be may be able to access for Extra Help (for prescription drug costs) or Medicaid (which can cover your Medicare premiums and cost-sharing). These programs do have income limits that vary by state.

Your income and assets do not prevent you from enrolling in Medicare Part A or Part B. They may affect whether you pay higher premiums for Part B and Part D — higher-income beneficiaries pay more — but income does not make you ineligible.

Frequently Asked Questions

Can I enroll in Medicare before I turn 65?

Only if you have received SSDI for 24 months or have end-stage renal disease. Otherwise, you must wait until your Initial Enrollment Period, which begins three months before you turn 65. If you try to enroll early without one of these conditions, Social Security will reject your process.

What if I am still working at 65 and do not want to enroll yet?

If your employer has 20 or more employees and you are covered by their health plan, you can delay Part B enrollment without penalty. You have eight months after you leave your job or lose coverage to enroll without penalty. Part A enrollment is separate — you can enroll in Part A while delaying Part B if you wish.

Do I lose my Medicare if I move out of the United States?

You can keep your Medicare Part A and Part B if you move abroad, but coverage is limited — Medicare generally does not pay for care outside the U.S. except in specific situations near the border. If you move permanently, contact Social Security to discuss your options.

What if I was not born in the United States but became a citizen?

You are may be able to access for Medicare at 65 the same way as any other U.S. citizen. You do not need to have lived in the country your entire life — citizenship is what matters. Bring your naturalization certificate or passport when you enroll.

Can I enroll in Medicare if I have never worked?

Yes. You can enroll in Part A at age 65 even with no work history, though you will pay a premium because you did not pay Medicare taxes. The premium is higher than for someone with 10 years of work history, but enrollment is not denied based on lack of work.