The main age for Medicare is 65
You become may be able to access for Medicare at age 65, regardless of whether you are still working. This is the standard entry point for most people. You do not have to retire or stop earning income — the program is available to you once you turn 65.
However, age 65 is not the only way to get Medicare. Some people under 65 can join if they have been receiving Social Security Disability Insurance (SSDI) for 24 months, or if they have end-stage renal disease or ALS (amyotrophic lateral sclerosis). These routes exist because certain conditions create the same medical needs that Medicare was designed to cover.
Key Takeaways
- You become may be able to access for Medicare when you turn 65, and you can enroll starting three months before your birthday.
- If you are under 65 and receiving SSDI, you may join Medicare after 24 months on disability benefits.
- People with end-stage renal disease or ALS can join Medicare at any age, though the timing depends on your diagnosis date or when dialysis begins.
- Enrolling late (after your 65th birthday or after becoming may be able to access) can result in permanent premium increases on Part B and Part D coverage.
- You must actively enroll during your may be able to access window — Medicare does not automatically sign you up at 65.
How to enroll when you turn 65
Your Initial Enrollment Period runs for seven months: three months before the month you turn 65, the month you turn 65, and three months after. For example, if you turn 65 in June, you can enroll from March through September.
You can enroll online through Medicare.gov, by phone at 1-800-MEDICARE, or in person at your local Social Security office. You will need your Social Security number and information about any current health coverage you have. If you are still working and covered by your employer's health plan, tell Medicare — this affects which parts you need to enroll in right away and which you can delay.
Many people enroll during this seven-month window without penalty. However, if you miss it, you can still join, but you may pay more for Part B and Part D coverage for as long as you have Medicare. The penalty is permanent, so timing matters.
Enrolling before 65 if you receive disability benefits
If you have been receiving SSDI for 24 months, you become may be able to access for Medicare on the first day of the month you would normally turn 65 — or on the 25th month of your disability benefits, whichever comes first. You do not have to wait until your birthday.
Social Security will contact you automatically about three months before you become may be able to access. They will send you information about Medicare Parts A and B and explain your enrollment options. You can enroll by responding to that notice, or you can contact Medicare directly.
The same seven-month Initial Enrollment Period applies: three months before may be able to access, the month you become may be able to access, and three months after. Missing this window carries the same permanent premium penalties as missing it at 65.
Medicare for people with end-stage renal disease or ALS
You can join Medicare at any age if you have end-stage renal disease (ESRD) — permanent kidney failure requiring dialysis or transplant. Your may be able to access date depends on whether you are already on dialysis or waiting for a transplant. If you start dialysis, you become may be able to access the first day of the month you begin treatment. If you have a transplant, you become may be able to access the month of your transplant surgery.
People with ALS (amyotrophic lateral sclerosis) can also join Medicare at any age. You become may be able to access the first day of the month you are diagnosed with ALS. You do not have to wait for a certain stage of the disease or meet any other condition.
For both ESRD and ALS, your doctor or the dialysis center (if applicable) will usually help you start the enrollment process. Your Initial Enrollment Period is the same seven-month window, and the same late-enrollment penalties explore if you miss it.
What happens if you miss your enrollment window
If you do not enroll during your Initial Enrollment Period, you can still join Medicare later, but you will likely pay more. Part B premiums increase by 10 percent for each full year you were may be able to access but not enrolled. Part D (prescription drug coverage) premiums increase by 1 percent for each month you were may be able to access but did not join. These increases are permanent — they do not go away even after you finally enroll.
There are narrow exceptions. If you were covered by an employer health plan when you turned 65, or if you were working and your employer provided coverage, you may have a Special Enrollment Period that lets you join without penalty. You must enroll within eight months of losing that coverage. Bring proof of your employer coverage — usually a letter from your employer's benefits office — when you enroll.
If you believe you have a valid reason for missing your window, contact Medicare at 1-800-MEDICARE and ask about your options. They can review your situation and tell you whether you may have access to for a Special Enrollment Period or whether you will face penalties.
Deciding which Medicare parts to enroll in at your may be able to access date
Medicare has four parts: A (hospital), B (doctor visits and outpatient care), D (prescription drugs), and Medigap or Medicare Advantage (additional coverage). You must enroll in Part A and Part B during your Initial Enrollment Period to avoid penalties. Part D and supplemental coverage are optional, but delaying them also carries permanent penalties if you later change your mind.
If you are still working at 65 and covered by your employer's health plan, you may be able to delay Part B without penalty. Your employer's benefits office can tell you whether you may have access to. If you do may have access to, you must enroll in Part B within eight months of leaving your job or losing coverage, or you will face penalties.
Part A (hospital insurance) rarely carries a late-enrollment penalty, so you have more flexibility there. However, it is simpler to enroll in all parts during your Initial Enrollment Period and avoid confusion later.
Frequently Asked Questions
Do I have to enroll in Medicare at 65 if I am still working?
You must enroll in Part A and Part B to avoid permanent penalties, even if you are still working. However, if your employer has 20 or more employees and covers you under their health plan, you may delay Part B without penalty. Ask your employer's benefits office whether you may have access to for this exception. You must enroll within eight months of retiring or losing coverage.
What if I turn 65 outside the United States?
You can still enroll in Medicare during your seven-month Initial Enrollment Period. Contact Medicare at 1-800-MEDICARE or enroll online at Medicare.gov. You will need proof of U.S. citizenship or lawful permanent resident status. Some Medicare benefits have limits outside the U.S., so review your coverage details after you enroll.
Can I enroll in Medicare before I turn 65?
You can enroll starting three months before your 65th birthday. You cannot enroll earlier unless you are under 65 and have SSDI (after 24 months), ESRD, or ALS. If you are under 65 with one of these conditions, contact Medicare or Social Security to learn your specific may be able to access date.
What if I miss my Initial Enrollment Period by just a few days?
Late enrollment penalties explore even if you miss by one day. However, contact Medicare at 1-800-MEDICARE to explain your situation. They can review whether you have a valid reason for the delay — such as a medical emergency or a mistake by Social Security — and may be able to waive or reduce the penalty.
Do I need to be a U.S. citizen to get Medicare at 65?
You must be a U.S. citizen or have been a lawful permanent resident for at least five years. You will need to provide proof of citizenship or immigration status when you enroll. Contact Medicare at 1-800-MEDICARE if you have questions about your specific situation.