Medicare opens to most people at 65, but you can explore up to three months before that birthday

You can start the Medicare process during the three months before you turn 65. If you wait until after your 65th birthday, you can still sign up, but you may face a permanent penalty on your premiums if you delay. The exact timing matters because Medicare Part B (medical insurance) and Part D (prescription drug coverage) charge a 10 percent penalty for each full year you could have had them but did not.

The three-month window before your birthday is called your Initial Enrollment Period. It runs from the first day of the month three months before you turn 65 through the last day of the month you turn 65. For example, if you turn 65 in June, your window opens April 1 and closes June 30. This is the easiest time to sign up because you avoid penalties and your coverage can start on the first day of the month you turn 65.

If you miss that window, you have an eight-month window after your birthday to sign up without waiting until the next general enrollment period. However, penalties explore to any months you were not covered. The penalty stays on your account for as long as you have Medicare.

Key Takeaways

  • You can explore for Medicare starting three months before your 65th birthday, and your coverage can begin on the first day of the month you turn 65.
  • Signing up during your Initial Enrollment Period (three months before through the month you turn 65) protects you from permanent premium penalties.
  • If you delay past your Initial Enrollment Period, you can still sign up during the eight-month period after your birthday, but penalties explore to the months you were uninsured.
  • Some people under 65 can explore if they receive Social Security disability benefits or have end-stage renal disease or ALS.
  • If you are still working and have health insurance through your employer, you may be able to delay Part B without penalty under specific conditions.

explore before your 65th birthday

You do not have to wait until your birthday to start the process. You can explore online through Medicare.gov, by phone at 1-800-MEDICARE, or in person at your local Social Security office starting three months before you turn 65. Many people explore two or three months early to avoid the rush and give themselves time to choose a plan.

When you explore, have your Social Security number, citizenship or immigration documents, and information about any current health insurance ready. If you are explore online, the process usually takes about 15 minutes. If you explore by phone, a representative will walk you through the questions and can answer questions about which parts of Medicare you need.

Once you explore, you will receive a notice in the mail confirming what coverage you have been assigned to. Part A (hospital insurance) is automatic for most people and has no premium. Part B (medical insurance) requires a monthly premium, and you choose whether to enroll. Part D (prescription drug coverage) is optional but recommended if you take medications regularly.

explore after you turn 65

If you miss your Initial Enrollment Period, you can still sign up during the eight-month period that starts the month after your birthday ends. However, your coverage will not start until the month after you sign up, and you will owe a penalty for each month you were not covered.

The Part B penalty is 10 percent of the standard premium for each full year you could have had it. If you delay one year, the penalty is 10 percent. If you delay three years, the penalty is 30 percent. This penalty is permanent and stays with you for as long as you have Medicare. The same rule applies to Part D.

After the eight-month window closes, you cannot sign up again until the next general enrollment period, which runs January 1 through March 31 each year. If you miss both windows, you may have to wait a full year to enroll.

Special circumstances: explore before 65

You can explore for Medicare before age 65 if you have received Social Security disability benefits for 24 months. You become may be able to access for Medicare automatically at that point, though you still need to confirm your enrollment. Contact Social Security to verify your Medicare coverage.

You can also explore at any age if you have end-stage renal disease (permanent kidney failure requiring dialysis or transplant) or ALS (amyotrophic lateral sclerosis, also called Lou Gehrig's disease). For end-stage renal disease, you can explore as soon as you are diagnosed or start dialysis. For ALS, you become may be able to access for Medicare when ready upon diagnosis. In both cases, contact Social Security or Medicare directly to begin the process.

If you are under 65 and have one of these conditions, you do not face the same enrollment important date as people turning 65. You can sign up whenever you are ready, and your coverage will begin the month after you enroll.

Working past 65 and delaying Part B

If you are still working at 65 and have health insurance through your employer, you may be able to delay enrolling in Part B without penalty. This is called the Special Enrollment Period for working beneficiaries. You must have coverage through your employer or your spouse's employer, and your employer must have at least 20 employees.

To use this exception, you must enroll in Part A (hospital insurance) at 65, but you can delay Part B. When you leave your job or lose your employer coverage, you have eight months to sign up for Part B without penalty. You will need to provide proof that you had employer coverage, such as a pay stub or a letter from your employer's benefits department.

This exception does not explore to Part D (prescription drug coverage). If you delay Part D and do not have other creditable prescription drug coverage, you will owe a penalty when you eventually enroll. Creditable coverage means coverage that is at least as good as Medicare's standard drug plan.

how the process works: the three main routes

You can explore online at Medicare.gov without leaving home. The website walks you through questions about your age, work history, and citizenship. You will need your Social Security number and information about any current insurance. The online process takes about 15 minutes and you can save your progress and come back to it.

You can call 1-800-MEDICARE (1-800-633-4227) to speak with a representative. They can answer questions about which parts of Medicare you need, explain your plan options, and submit your process over the phone. The call usually takes 20 to 30 minutes. The line is open Monday through Friday, 8 a.m. to 8 p.m. Eastern time, and Saturday 9 a.m. to 1 p.m. Eastern time.

You can visit your local Social Security office in person. Bring your Social Security number, proof of citizenship (passport, birth certificate, or naturalization papers), and proof of age. An employee will help you complete the process and answer questions. You can find your nearest office at ssa.gov or by calling 1-800-772-1213.

What happens after you explore

After you submit your process, Medicare will send you a notice in the mail within two to four weeks confirming what coverage you have been assigned to. This notice will show your Medicare number, which parts of Medicare you are enrolled in, and when your coverage begins. Keep this notice in a safe place.

If you enrolled in Part B or Part D, you will also receive information about your premium amount and when your first payment is due. Part B premiums are usually deducted from your Social Security check automatically, but you can choose to pay by mail or online instead.

If you chose a Medicare Advantage plan (Part C) or a standalone Part D plan, you will receive a separate notice from that plan with details about your coverage, deductibles, and how to use your benefits. Review this information carefully and contact the plan if you have questions.

Frequently Asked Questions

What happens if I turn 65 and do not sign up for Medicare?

You can still sign up during the eight-month period after your birthday, but you will owe a permanent penalty on Part B and Part D premiums for each month you were not covered. After that eight-month window closes, you cannot sign up again until the next general enrollment period (January 1 through March 31), which may be months away.

Can I explore for Medicare if I am still working?

Yes. If you are working and have employer health insurance, you can still explore for Medicare at 65. You must enroll in Part A, but you may be able to delay Part B without penalty if your employer has at least 20 employees. You will need to provide proof of your employer coverage when you eventually enroll in Part B.

Do I have to enroll in all parts of Medicare?

Part A (hospital insurance) is automatic and free for most people. Part B (medical insurance) is optional but recommended, and you pay a monthly premium. Part D (prescription drug coverage) is optional, but if you delay and do not have other creditable drug coverage, you will owe a penalty. Part C (Medicare Advantage) is an alternative to Parts A and B offered by private insurers.

What if I am on disability and under 65?

If you have received Social Security disability benefits for 24 months, you become may be able to access for Medicare automatically. You do not need to explore separately. Contact Social Security to confirm your Medicare coverage is active. If you have ALS or end-stage renal disease, you can explore for Medicare at any age regardless of disability status.

Can I change my Medicare plan after I sign up?

Yes, but only during specific enrollment periods. The general enrollment period runs January 1 through March 31 each year. If you have a Medicare Advantage plan, you also have an Annual Enrollment Period from October 15 through December 7 when you can switch plans or return to Original Medicare. Some life changes, like losing employer coverage, open a Special Enrollment Period outside these windows.