Medicare starts at 65 for most people, but you may may have access to earlier

You become 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 years. This is the standard age, and it applies whether you are still working or retired. However, you do not have to wait until 65 if you have End-Stage Renal Disease (ESRD), Lou Gehrig's disease (ALS), or have been receiving Social Security Disability Insurance (SSDI) for 24 months.

The month you turn 65, you enter your Initial Enrollment Period — a seven-month window that runs from three months before your birthday through three months after. During this window, you can enroll in Medicare Part A (hospital insurance) and Part B (medical insurance) without penalty. If you miss this window and do not have other coverage, you will pay a permanent surcharge on your Part B premiums for as long as you have Medicare.

Enrollment happens through Social Security, not through Medicare directly. You can enroll online at ssa.gov, by phone at 1-800-772-1213, or in person at your local Social Security office. If you are already receiving Social Security benefits, you will be enrolled automatically in Parts A and B three months before the month you turn 65, unless you ask Social Security not to enroll you.

Key Takeaways

  • You are may be able to access for Medicare at 65 if you are a U.S. citizen or permanent resident who has lived here for at least five years.
  • You can enroll during a seven-month Initial Enrollment Period that starts three months before you turn 65 and ends three months after.
  • If you have ESRD, ALS, or have received SSDI for 24 months, you may may have access to for Medicare before 65.
  • Enrollment happens through Social Security, and missing your enrollment window results in a permanent premium penalty.
  • If you are already receiving Social Security benefits, you will be enrolled automatically unless you decline.

may have access to for Medicare before age 65

Three medical conditions allow you to enroll in Medicare before 65. The first is End-Stage Renal Disease (ESRD) — permanent kidney failure that requires dialysis or a transplant. You become may be able to access the first day of the month in which you start dialysis, or the month after you receive a kidney transplant. You do not have to wait for a specific time period.

The second is ALS (amyotrophic lateral sclerosis), also called Lou Gehrig's disease. You become may be able to access the first day of the month in which you are diagnosed. Unlike ESRD, there is no waiting period — diagnosis alone qualifies you.

The third route is Social Security Disability Insurance (SSDI). If you have been receiving SSDI for 24 consecutive months, you become may be able to access for Medicare on the first day of the 25th month of your disability benefits. This means you do not have to reach 65; you move directly from SSDI to Medicare. If you are already on SSDI when you turn 65, your Medicare coverage straightforward continues without interruption.

How to enroll when you may have access to early

If you have ESRD or ALS, you do not need to contact Social Security yourself. Your doctor or dialysis center will report your condition to Social Security, and you will receive a notice in the mail explaining your Medicare coverage and enrollment options. You will have a seven-month Initial Enrollment Period starting three months before your may be able to access month.

If you are on SSDI, Social Security will contact you automatically as you approach your 25th month of benefits. You will receive a notice in the mail with your Medicare enrollment information. Like other beneficiaries, you have a seven-month window to enroll, though Social Security may enroll you automatically if you do not decline.

In all cases, you can enroll online at ssa.gov, by phone at 1-800-772-1213, or at your local Social Security office. Have your Social Security number and proof of citizenship or permanent residency ready.

What happens if you miss your enrollment window

If you do not enroll during your Initial Enrollment Period and you do not have other may have access to coverage (such as employer health insurance), you will face a permanent penalty on your Part B premiums. The penalty is 10 percent of the standard Part B premium for each full 12-month period you were may be able to access but not enrolled. This penalty stays with you for life, even if you enroll later.

There are limited exceptions. If you were covered by an employer health plan based on your own current employment or your spouse's current employment, you have an eight-month Special Enrollment Period after that coverage ends to enroll without penalty. You must show proof of the employer coverage — usually a letter from your employer or insurance company stating the dates you were covered.

If you miss your window and do not have an exception, you can still enroll during the General Enrollment Period, which runs from January 1 to March 31 each year. Coverage begins July 1 of that year. However, you will still owe the permanent penalty.

Medicare coverage and your birthday month

Your Medicare coverage begins on the first day of the month in which you turn 65, not on your actual birthday. If you turn 65 on January 15, your coverage starts January 1. This matters because it determines when you can start using your benefits and when your premium payments begin.

Your Initial Enrollment Period runs from three months before this coverage month through three months after. If you turn 65 in June, your enrollment window opens in March and closes in September. Enrollment submitted during this window takes effect on your coverage start date, even if you enroll in the last month of the window.

Staying covered if you are still working at 65

You can enroll in Medicare at 65 even if you are still working and covered by an employer health plan. In fact, you should enroll in Part A (hospital insurance) at 65 even if you decline Part B, because Part A has no premium for most people and waiting to enroll can trigger a penalty later.

If you are covered by an employer plan based on your current employment, you can delay enrolling in Part B without penalty. When you leave that job or lose the employer coverage, you have an eight-month Special Enrollment Period to enroll in Part B without the permanent surcharge. You must provide proof of the employer coverage when you enroll.

If your employer coverage ends before you turn 65, you should enroll in Medicare during your Initial Enrollment Period. Delaying enrollment after your coverage ends will result in the permanent Part B penalty.

Frequently Asked Questions

Do I have to enroll in Medicare at 65 if I have employer coverage?

You should enroll in Part A at 65 because it usually has no premium and protects you from penalties later. You can delay Part B if you have employer coverage based on current employment, but you must enroll within eight months of losing that coverage to avoid a permanent penalty.

What if I am not a U.S. citizen but live here legally?

You may be may be able to access for Medicare at 65 if you are a permanent resident (green card holder) and have lived in the United States for at least five years. Bring your green card and proof of residency when you enroll through Social Security.

Can I enroll in Medicare before my 65th birthday?

Yes, your Initial Enrollment Period starts three months before you turn 65. You can enroll as early as three months before your birthday month. Coverage will not begin until the first day of the month you turn 65, but enrolling early ensures you do not miss the important date.

What if I am on disability but have not received SSDI for 24 months yet?

You are not yet may be able to access for Medicare through the disability route. Once you have received SSDI for 24 consecutive months, you will become may be able to access on the first day of the 25th month. Social Security will notify you when you approach this date.

Do I lose Medicare if I go back to work after 65?

No. Once you are enrolled in Medicare at 65, your coverage continues regardless of whether you work. You can work and keep Medicare at the same time. Your earnings do not affect your Medicare coverage or premiums.