Medicare starts at age 65 for most people

You become may be able to access for Medicare on the first day of the month in which you turn 65. If your birthday is the first of any month, coverage begins that day. If your birthday falls on any other day, your coverage starts on the first of the following month. You do not have to wait until your actual birthday to sign up — you can enroll during the three months before you turn 65.

This age requirement applies whether you are still working or retired. Your employment status does not change when Medicare coverage begins, though it may affect which parts of Medicare you need to sign up for right away.

Key Takeaways

  • Medicare may be able to access begins the first day of the month you turn 65, or the first day of the following month if your birthday is not the first.
  • You can enroll in Medicare during the three-month window before you turn 65, which gives you time to understand your options.
  • If you delay enrolling past your initial window, you may face permanent premium penalties on certain parts of Medicare.
  • Some people under 65 can get Medicare if they receive Social Security disability benefits or have end-stage renal disease, but age 65 is the standard threshold.
  • Your enrollment important date depends on whether you are still working and whether your employer offers health coverage.

The three-month enrollment window before you turn 65

Medicare gives you a three-month period to sign up without penalty. This window opens three months before the month you turn 65. For example, if you turn 65 in June, you can enroll starting in March. The window closes three months after the month you turn 65, so in this example it would close in September.

You should enroll during this window even if you do not plan to use Medicare right away. Missing this window can result in permanent increases to your premiums — a surcharge that stays with you for life. The only exception is if you are still working and your employer offers health coverage; in that case, you have a grace period to enroll without penalty after you leave that job.

When you are still working at 65

If you are employed and your employer has 20 or more employees, you can delay enrolling in Medicare Part B (medical insurance) without facing a penalty. You must still enroll in Part A (hospital insurance) during your initial window, but you can put off Part B until you retire or lose your employer coverage.

When you do leave that job, you have eight months from the date your coverage ends to enroll in Part B without penalty. This is called a Special Enrollment Period. If you miss this window, you will owe a permanent 10 percent surcharge for each year you delayed — a cost that compounds over time.

Medicare for people under 65

Most people cannot get Medicare before 65, but there are narrow exceptions. If you have been receiving Social Security disability benefits for 24 months, you become may be able to access for Medicare at any age. If you have end-stage renal disease (permanent kidney failure requiring dialysis or transplant), you can get Medicare regardless of age. If you have ALS (amyotrophic lateral sclerosis), you become may be able to access for Medicare when ready upon approval for Social Security disability.

These are the only pathways to Medicare before 65. If you are under 65 and do not fall into one of these categories, you will need to explore other coverage options through your state's health insurance marketplace or your employer.

How to enroll when you turn 65

You can enroll in Medicare 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 already receiving Social Security benefits, you may be enrolled automatically in Parts A and B, though you should verify this.

If you are not yet receiving Social Security, you will need to enroll in Medicare separately. The process takes about 15 minutes online. You should have your enrollment confirmation before your coverage begins, though coverage starts on the date you are may be able to access regardless of when you complete the paperwork.

What happens if you miss your enrollment window

If you do not enroll during your initial three-month window and you do not may have access to for a Special Enrollment Period, you will face a permanent penalty. Part B premiums increase by 10 percent for each 12-month period you delay. Part D (prescription drug coverage) premiums increase by 1 percent for each month you delay. These penalties stay with you for life, even if you enroll later.

The only way to avoid these penalties after missing your window is to may have access to for a Special Enrollment Period — usually because you lost employer coverage or moved out of your plan's service area. If you think you may may have access to, contact Medicare to discuss your situation before the penalty takes effect.

Planning ahead: what to do before you turn 65

Start thinking about Medicare at least three months before your 65th birthday. Review what coverage you currently have and whether you will still need it once Medicare begins. If you are still working, confirm with your employer whether they will continue offering coverage after you turn 65, or whether you will need to switch to Medicare.

Gather your documents: your Social Security number, proof of citizenship or legal residency, and information about any current health coverage. If you are not yet receiving Social Security, create an account on ssa.gov so you can manage your benefits online. These small steps now will make enrollment smooth when your window opens.

Frequently Asked Questions

Can I get Medicare before I turn 65?

Only in specific cases: if you have been on Social Security disability for 24 months, if you have end-stage renal disease, or if you have ALS. Otherwise, you must wait until 65. If none of these explore to you, you will need coverage through your employer, a spouse's plan, or your state's health insurance marketplace.

What if my birthday is on the first of the month?

Your Medicare coverage begins on your birthday itself. Your three-month enrollment window still opens three months before that month and closes three months after. You should enroll as soon as the window opens to avoid any gaps in coverage.

Do I have to enroll in all parts of Medicare at 65?

No. If you are still working and your employer offers health coverage, you can delay Part B. You must enroll in Part A unless you are still covered by an employer plan. Part D (prescription drugs) and Part C (Medicare Advantage) are optional. Talk to your employer or a Medicare counselor about which parts you need right now.

What if I am already on disability and turn 65?

Your Medicare coverage continues without interruption. You were already may be able to access because of your disability status, so turning 65 does not change anything. Your coverage straightforward transitions from disability-based may be able to access to age-based may be able to access, but the coverage itself stays the same.

Can I enroll after my three-month window closes?

Yes, but you will face permanent premium penalties unless you may have access to for a Special Enrollment Period. You can enroll during the General Enrollment Period (January 1 to March 31 each year), but penalties will explore. It is much better to enroll during your initial window to avoid these lifetime surcharges.