You become may be able to access for Medicare at 65, but you can start earlier if you have a disability or end-stage renal disease

Most people become may be able to access for Medicare the month they turn 65. You do not have to wait until your birthday month ends — may be able to access begins on the first day of the month in which you turn 65. If you were born on any day in March, for example, your Medicare coverage can start March 1.

You are not required to be retired to get Medicare at 65. You can still be working, still earning income, and still covered by an employer health plan. Medicare becomes your secondary insurance in that case, paying after your work plan does.

Three groups of people can get Medicare before 65: people who have received Social Security Disability Insurance (SSDI) for 24 months, people with end-stage renal disease (permanent kidney failure requiring dialysis or transplant), and people with ALS (amyotrophic lateral sclerosis, also called Lou Gehrig's disease). People with ALS become may be able to access when ready upon approval for SSDI, without waiting 24 months.

Key Takeaways

  • Medicare may be able to access begins the first day of the month you turn 65, regardless of your employment status or other insurance.
  • You can get Medicare before 65 if you have received SSDI for 24 months, have end-stage renal disease, or have been approved for SSDI due to ALS.
  • You must sign up during your enrollment window or face a permanent penalty on your premiums, even if you have other coverage.
  • If you are still working at 65 and covered by an employer plan, you may be able to delay enrollment without penalty, but you must meet specific conditions.
  • Your birthday month determines when your coverage starts, and you should begin the enrollment process three months before that month arrives.

When to sign up if you are turning 65

Your Initial Enrollment Period (IEP) is seven months long: it starts three months before the month you turn 65 and ends three months after. If you turn 65 in June, your enrollment window opens in March and closes in September. You can sign up online at Medicare.gov, by phone at 1-800-MEDICARE, or in person at your local Social Security office.

Signing up during this window is important because Medicare charges a permanent penalty if you miss it and do not have may have access to coverage elsewhere. The penalty stays on your premiums for as long as you have Medicare. If you were covered by a group health plan through an employer (yours or a spouse's) when you turned 65, you may have a different important date — ask your employer's benefits office or call Social Security to confirm.

You do not have to wait until your birthday month to sign up. Many people enroll three months early to make sure their coverage starts smoothly on the first day of their 65th birthday month.

Enrollment if you have SSDI or end-stage renal disease

If you receive SSDI and have been on it for 24 months, you are automatically enrolled in Medicare Part A (hospital insurance) and Part B (medical insurance) the month you become may be able to access. You do not have to sign up yourself — Social Security handles it. You will receive your Medicare card in the mail about two months before your coverage starts.

If you have end-stage renal disease, you can sign up for Medicare as soon as your doctor confirms the diagnosis and you begin dialysis or are on a transplant waiting list. You will need to contact Social Security or Medicare directly to start the process, because this route is not automatic. Your coverage can begin the month your treatment starts.

If you have ALS and are approved for SSDI, you become may be able to access for Medicare when ready. You will be enrolled automatically, and your coverage typically begins the same month your SSDI benefits start.

What happens if you miss your enrollment window

If you do not sign up during your Initial Enrollment Period and you do not have a valid reason for the delay, you will owe a late enrollment penalty. This penalty is a permanent increase to your Part B premium — it stays with you for as long as you have Medicare, even if you move to a different plan.

The penalty is calculated as 10 percent of the standard Part B premium for each full 12-month period you were may be able to access but not enrolled. If you were may be able to access for two years and did not sign up, your penalty would be 20 percent of the current premium, added to every monthly bill.

You can avoid this penalty if you had creditable coverage — health insurance through an employer, a spouse's employer, COBRA, or certain other group plans — during the time you were not on Medicare. If you had creditable coverage, you have an eight-month window after that coverage ends to sign up for Medicare without penalty. Keep records of your coverage to prove this to Medicare if you need to.

Delaying enrollment if you are still working

If you are still working at 65 and covered by your employer's health plan, you may be able to delay enrolling in Medicare Part B without facing a penalty. This is called the Special Enrollment Period (SEP) for people with group health plan coverage. Your employer's benefits office can tell you whether your plan qualifies.

To use this exception, you must be actively working — not retired — and your employer must have at least 20 employees. If both conditions are true, you can wait to enroll in Part B until you retire or lose the employer coverage, whichever comes first. You then have eight months to sign up without penalty.

Part A (hospital insurance) works differently. Even if you delay Part B, you should still enroll in Part A at 65 unless you are covered by your employer's plan as an active employee. Part A is usually free if you or your spouse paid Medicare taxes for at least 10 years, so there is no financial reason to delay it.

How your age affects your Medicare costs

Your age at enrollment does not change your Part A premium — it is free for most people. Your Part B premium is the same whether you enroll at 65 or later, unless you delayed and owe a late penalty. The penalty increases your monthly cost permanently.

Your age does affect your out-of-pocket costs in some Medicare plans. Original Medicare (Part A and Part B) has the same deductibles and coinsurance at any age. However, if you choose a Medicare Advantage plan (Part C), the plan's copays, coinsurance, and deductibles are set by the plan itself and do not vary by age.

Prescription drug coverage (Part D) premiums vary by plan and by the specific drugs you take, not by your age. However, if you delay Part D enrollment without creditable coverage, you will owe a permanent penalty on your premiums, similar to Part B.

Preparing to enroll three months before your 65th birthday

Start gathering documents about three months before you turn 65. You will need your Social Security number, proof of citizenship or legal residency, and information about any current health coverage. If you are still working, have your employer's health plan details handy so you can tell Medicare about it.

Review your current medications and the doctors you see regularly. This information helps you decide whether to choose Original Medicare with a Medigap plan, a Medicare Advantage plan, or a combination. Each option has different costs and networks, so knowing your needs makes the choice clearer.

Visit Medicare.gov and use the Plan Finder tool to see what plans are available in your area. You can compare costs, coverage, and pharmacies for each option. This step takes time but often saves money in the long run.

Frequently Asked Questions

What if I turn 65 while still working full-time?

You can still get Medicare at 65 even if you are working. If your employer has 20 or more employees and covers you under their health plan, you may delay Part B without penalty. You should still enroll in Part A. Contact your employer's benefits office to confirm whether your plan qualifies for the delay.

Can I get Medicare before 65 if I am disabled but not on SSDI yet?

You must be receiving SSDI benefits for 24 months before Medicare begins (except for ALS, which qualifies when ready). If you have applied for SSDI but have not been approved yet, you cannot get Medicare until your SSDI is approved and you have been receiving it for 24 months. Contact Social Security to check the status of your process.

Do I have to enroll in both Part A and Part B at the same time?

No. You can enroll in Part A without Part B if you are still working and covered by an employer plan. However, if you delay Part B, you must enroll during your Initial Enrollment Period or during an eight-month window after your employer coverage ends, or you will owe a permanent penalty.

What happens to my employer health insurance when I turn 65?

Your employer plan does not automatically end when you turn 65. You can keep it and let Medicare be secondary, or you can drop it and use Medicare as your primary insurance. Check with your employer about whether you can stay on the plan after 65 — some employers require you to enroll in Medicare, while others let you choose.

Is there a penalty if I enroll in Medicare before I turn 65?

No. If you are may be able to access before 65 due to SSDI, end-stage renal disease, or ALS, you can enroll as soon as you may have access to with no penalty. In fact, you are usually enrolled automatically, so there is nothing you need to do.