When You Can Enroll in Medicare: Age, Work History, and Other Pathways

The main routes to Medicare may be able to access

You become may be able to access for Medicare at age 65 if you or your spouse has worked and paid Medicare taxes for at least 10 years (40 quarters). You do not have to be retired—you can still be working. If you are not yet 65, you may still be may be able to access through disability or end-stage renal disease, which are covered below.

The 10-year work history requirement is the most common path. The work does not have to be continuous, and it does not have to be for the same employer. What matters is that Medicare taxes were withheld from your paychecks during those quarters. If you are married, your spouse's work history can also may have access to you, even if you never worked yourself.

If you do not meet the 10-year requirement, you may still purchase Medicare Part A (hospital insurance) at age 65 by paying a monthly premium. This option exists so that people who worked fewer than 10 years are not left without coverage.

Key Takeaways

You are may be able to access for Medicare at age 65 if you or your spouse worked and paid Medicare taxes for at least 10 years total.
You can enroll before age 65 if you have been receiving Social Security disability benefits for 24 months, or if you have end-stage renal disease or ALS.
If you do not have 10 years of work history, you can buy into Medicare Part A at age 65 by paying a monthly premium.
Your initial enrollment window is the three months before your 65th birthday, the month you turn 65, and the three months after—missing this window can result in permanent late-enrollment penalties.

may be able to access before age 65: disability and kidney disease

If you have been receiving Social Security Disability Insurance (SSDI) for 24 months, you become may be able to access for Medicare regardless of your age. The 24-month clock starts from the month your disability benefits began, not from when you applied. Once you hit that mark, Medicare enrollment is automatic—you do not need to do anything.

If you have end-stage renal disease (ESRD)—kidney failure requiring dialysis or a transplant—you are may be able to access for Medicare when ready, even if you are under 65 and have never worked. You will need documentation from your doctor or dialysis center confirming the diagnosis. Similarly, if you have been diagnosed with amyotrophic lateral sclerosis (ALS), you are may be able to access for Medicare right away without waiting for disability benefits to begin.

For both SSDI and ESRD, you should contact Social Security or Medicare directly to confirm your may be able to access and enroll. Do not assume the process is automatic—verification steps vary by situation.

Government employee coverage and railroad retirement

If you worked for the federal government and were hired after 1983, you paid Medicare taxes and follow the standard 10-year rule. If you were hired before 1984, you may have paid into a different system (CSRS) and may not have Medicare coverage through that work. You can check your work history on your Social Security account at ssa.gov.

If you worked for a railroad, your coverage depends on whether you paid Railroad Retirement Tax Act (RRTA) taxes or Social Security taxes. Most railroad workers paid RRTA taxes, which count toward Medicare may be able to access under the same 10-year rule. The Railroad Retirement Board (RRB) handles may be able to access for railroad workers; you can contact them at 1-877-772-5772 to verify your status.

Non-citizen and immigrant may be able to access

You do not have to be a U.S. citizen to be may be able to access for Medicare, but you must be a permanent resident (green card holder) or have a valid visa status. If you are a permanent resident and meet the 10-year work history requirement, you are may be able to access at 65 just as a citizen would be.

If you are not a permanent resident, you cannot enroll in Medicare based on age alone. However, you may still be may be able to access if you have ESRD or ALS, or if you are receiving SSDI. Undocumented immigrants are not may be able to access for Medicare under any circumstance.

Checking your work history and quarters of coverage

You can view your work history and quarters of coverage by creating an account at ssa.gov and selecting "Earnings Record." This shows every year you paid Social Security and Medicare taxes, and how many quarters you have accumulated. A quarter is roughly three months of work; you need 40 quarters total (10 years) for may be able to access at 65.

If you see errors in your record—missing years, wrong employer names, or incorrect earnings—you can request a correction. Social Security has a important date to correct errors, so if you spot a problem, report it as soon as possible. You will need pay stubs, W-2 forms, or tax returns as proof.

If you are unsure whether you have enough quarters, you can call Social Security at 1-800-772-1213 and ask them to review your record. They can tell you exactly how many quarters you have and when you will be may be able to access.

Enrollment timing and penalties for late enrollment

Your initial enrollment period (IEP) runs for seven months: the three months before the month you turn 65, the month itself, and the three months after. If you enroll during this window, your coverage starts the month you turn 65 (or the first of the month after you enroll, whichever is later).

If you miss your IEP and do not enroll within that seven-month window, you will face a permanent late-enrollment penalty on your Part B and Part D premiums for as long as you have Medicare. The penalty is 10 percent per year of delayed enrollment. For example, if you were may be able to access at 65 but did not enroll until age 68, you would pay a 30 percent penalty on top of your regular premium for life.

There is one exception: if you or your spouse were still working and covered by an employer health plan when you turned 65, you may have a Special Enrollment Period that lets you enroll without penalty up to eight months after that coverage ends. You will need to provide proof of the employer coverage.

What happens after you confirm may be able to access

Once you know you are may be able to access, you can enroll through Medicare.gov, by phone at 1-800-MEDICARE, or in person at your local Social Security office. You will choose between Original Medicare (Part A and Part B) or a Medicare Advantage plan (Part C). You will also decide whether to add prescription drug coverage (Part D) and supplemental coverage (Medigap).

If you are already receiving Social Security benefits, your Medicare enrollment may happen automatically three months before you turn 65. You will receive a Medicare card in the mail. If you are not yet receiving Social Security, you will need to enroll separately in Medicare.

Frequently Asked Questions

Do I have to be retired to get Medicare at 65?

No. You can be working full-time and still enroll in Medicare at 65 if you meet the work history requirement. Your employment status does not affect your may be able to access. However, if you are still covered by an employer health plan, you may want to coordinate your Medicare enrollment with that coverage.

What if I worked outside the United States?

Work performed outside the U.S. generally does not count toward Medicare may be able to access unless you paid U.S. Social Security taxes on that income. If you worked for a U.S. employer abroad or were self-employed and paid self-employment taxes to the IRS, those quarters count. Contact Social Security to review your specific situation.

Can my spouse get Medicare based on my work history if they never worked?

Yes. If you have 10 years of work history and your spouse is 65 or older, they can enroll in Medicare based on your record. They do not need their own work history. Your spouse will need to provide proof of marriage and your Social Security number when they enroll.

What if I have a gap in my work history?

Gaps do not disqualify you. You need 40 quarters total across your lifetime, but they do not have to be consecutive. If you worked 10 years spread across different decades with time off in between, you still meet the requirement. Check your Social Security record to see your actual quarter count.

Can I delay Medicare enrollment and enroll later without penalty?

You can delay Part A (hospital insurance) without penalty if you or your spouse are still working and covered by an employer plan. However, Part B (medical insurance) carries a permanent penalty if you delay beyond your initial enrollment period, unless you have employer coverage. Part D (prescription drugs) also has a permanent penalty for late enrollment. Plan your enrollment timing carefully.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.