Understanding Medicare eligibility is the first step toward getting the health coverage you need. Here's who qualifies for Medicare, when to sign up, and what happens if you miss your enrollment window.
Medicare is the federal health insurance program that provides coverage for more than 60 million Americans. Whether you're in Charlotte, Durham, Raleigh, Cary, or anywhere else in North Carolina, you may be eligible for Medicare if you meet specific requirements.
You're eligible for Medicare if you are:
65 or older and a U.S. citizen or permanent legal resident who has lived in the U.S. for at least 5 continuous years
Under 65 with a qualifying disability and have received Social Security Disability Insurance (SSDI) benefits for at least 24 months.
Any age with End-Stage Renal Disease (ESRD) (permanent kidney failure requiring dialysis or a transplant)
At any age with ALS (Amyotrophic Lateral Sclerosis), also known as Lou Gehrig's disease, Medicare begins the month your SSDI benefits start.
Most people become eligible for Medicare at age 65. If you or your spouse worked and paid Medicare taxes for at least 10 years (40 quarters), you qualify for premium-free Part A (hospital insurance). You can sign up for Medicare starting three months before your 65th birthday.
If you're under 65, you may still qualify for Medicare due to disability or certain medical conditions:
Disability: If you've received Social Security Disability Insurance (SSDI) or Railroad Retirement Board disability benefits for 24 months, you're automatically enrolled in Medicare Part A and Part B. Your Initial Enrollment Period begins with the 25th month of disability benefits. Federal, state, and local government employees who qualify for disability but aren't eligible for SSDI may be eligible for Medicare 29 months after becoming disabled.
End-Stage Renal Disease (ESRD): If you have permanent kidney failure requiring dialysis or a kidney transplant, you qualify for Medicare regardless of your age. Enrollment is not automatic—you'll need to sign up through Social Security.
ALS (Lou Gehrig's Disease): If you have ALS, you're automatically enrolled in Medicare Part A and Part B the month your SSDI benefits begin—there's no 24-month waiting period.
Your Initial Enrollment Period is a 7-month window when you can first sign up for Medicare Part A and Part B. For most people turning 65, this period begins 3 months before your birthday month, includes your birthday month, and ends 3 months after your birthday month.
Example: If your 65th birthday is in September 2026, your Initial Enrollment Period runs from June 2026 through December 2026.
When your Medicare coverage begins depends on when you sign up during your Initial Enrollment Period. Coverage always starts on the first day of a month.
If you sign up during the first 3 months of your IEP, Your coverage starts the first day of the month you turn 65.
Special rule for first-of-the-month birthdays: If your birthday falls on the first day of a month, your coverage starts the first day of the prior month.
Examples:
Mr. Thompson's 65th birthday is August 20, 2026. If he signs up in May, June, or July, his coverage starts August 1, 2026.
Mrs. Scott's 65th birthday is August 1, 2026. If she signs up in May, June, or July, her coverage starts July 1, 2026 (because her birthday is on the first).
If You Don't Sign Up During the First 3 Months:
If you wait to sign up until later in your Initial Enrollment Period, your coverage won't begin the month you turn 65. Here's when coverage starts based on when you enroll:
When You Sign Up | When Coverage Starts |
The month you turn 65 | One month after you sign up |
1 month after your birthday month | Two months after you sign up |
2 months after your birthday month | Three months after you sign up |
3 months after your birthday month | Three months after you sign up |
During General Enrollment Period (Jan 1–Mar 31) | The month after you sign up |
Best practice: Sign up during the first three months of your Initial Enrollment Period to ensure your coverage starts the month you turn 65.
If you don't sign up for Medicare when you're first eligible and don't qualify for a Special Enrollment Period, you may face late enrollment penalties. These penalties are added to your monthly premium for as long as you have Medicare—for most people, that means for life.
Part A Penalty (if you have to pay for Part A):
If you don't qualify for premium-free Part A and don't sign up when first eligible, your monthly premium increases by 10%. You pay this penalty for twice the number of years you went without signing up. In 2025, the Part A premium is up to $518 per month.
Part B Penalty:
For each full 12-month period you delay enrolling in Part B, you pay a 10% premium penalty—and this penalty lasts for as long as you have Part B. The standard Part B premium is $185 per month in 2025 and $202.90 per month in 2026.
Example: If you delay Part B enrollment for 3 years without qualifying coverage, you'd pay a 30% penalty. In 2025, that would add about $55.50 to your monthly premium ($185 × 30%), bringing your total to approximately $240.50 per month—for as long as you have Part B.
Part D Penalty:
If you go 63 days or more without Medicare Part D or other creditable prescription drug coverage after your Initial Enrollment Period, you may pay a late enrollment penalty. The penalty is calculated as 1% of the national base beneficiary premium ($36.78 in 2025, $38.99 in 2026) multiplied by the number of full months you went without coverage.
A Special Enrollment Period allows you to sign up for Medicare outside your Initial Enrollment Period without paying a late enrollment penalty. The most common SEP applies if a group health plan covers you through your or your spouse's current employment.
Working past 65 with employer coverage: If you or your spouse has health insurance through current employment (with an employer of 20 or more employees), you can delay Part B enrollment without penalty. You have an 8-month Special Enrollment Period to sign up for Part B after:
The employment ends, OR
The group health plan coverage ends (whichever comes first)
Important: COBRA and retiree coverage do not count as current employer coverage. If you rely on COBRA or retiree benefits instead of signing up for Medicare, you may face gaps in coverage and late enrollment penalties.
If you missed your Initial Enrollment Period and don't qualify for a Special Enrollment Period, you can sign up during the General Enrollment Period, which runs from January 1 through March 31 each year. Coverage begins the month after you sign up.
Note: If you sign up during the General Enrollment Period, you will likely pay late enrollment penalties unless you qualify for an exception.
2025 Medicare Costs:
Part A Premium: $0 for most people (if you or your spouse worked and paid Medicare taxes for 40+ quarters), otherwise, up to $518/month.
Part A Deductible: $1,676 per benefit period for inpatient hospital stays
Part B Premium: $185/month (higher income may pay more)
Part B Deductible: $257/year
Part D Out-of-Pocket Cap: $2,000/year (once you reach this amount, you pay nothing for covered prescriptions the rest of the year)
2026 Medicare Costs:
Part B Premium: $202.90/month (higher income may pay more)
Part D Out-of-Pocket Cap: $2,100/year
If you're already receiving Social Security or Railroad Retirement Board benefits when you turn 65, you'll be automatically enrolled in Medicare Part A and Part B. Your Medicare card will be mailed to you about 3 months before your 65th birthday.
If you're not receiving Social Security benefits, you'll need to sign up for Medicare actively. You can enroll:
Online: Visit ssa.gov/medicare
By phone: Call Social Security at 1-800-772-1213 (TTY: 1-800-325-0778)
In person: Visit your local Social Security office
Medicare can be confusing, and making the wrong decision about when to enroll—or which coverage to choose—can cost you money for years to come. If you're based in North Carolina and have questions about Medicare eligibility, enrollment timing, or your coverage options, our local Medicare agents can help.
Our independent Medicare agents in NC can help you:
Understand when to sign up to avoid penalties
Compare Original Medicare, Medicare Advantage, and Medigap options
Determine if you qualify for a Special Enrollment Period
Find Part D prescription drug coverage that includes your medications
Navigate the transition from employer coverage to Medicare
Contact us today at 1-800-797-0327 or visit our website to connect with a local North Carolina Medicare agent. Getting Medicare shouldn't be a hassle—let us help you make an informed decision.
When should I sign up for Medicare?
You should sign up during your Initial Enrollment Period, which begins 3 months before the month you turn 65. Signing up during the first 3 months ensures your coverage starts the month you turn 65. If you're still working and have employer health insurance, you can delay enrollment without penalty.
Is it mandatory to sign up for Medicare at 65?
Medicare enrollment is not mandatory, but there are consequences if you don't sign up when first eligible. You may face late enrollment penalties that increase your premiums for life, and you may have gaps in health coverage. If you have creditable employer coverage, you can delay enrollment without penalty.
What happens if I don't sign up for Medicare at 65?
If you don't sign up during your Initial Enrollment Period and don't have qualifying employer coverage, you'll need to wait until the General Enrollment Period (January 1–March 31). Your coverage won't start until the month after you sign up, and you may pay a 10% Part B premium penalty for each full year you delayed—for as long as you have Part B.
Can I get Medicare before 65?
Yes. You can get Medicare before 65 if you have received Social Security Disability Insurance (SSDI) benefits for 24 months, have End-Stage Renal Disease (ESRD), or have ALS (Lou Gehrig's disease). People with ALS are automatically enrolled in Medicare the month their SSDI benefits begin—no waiting period required.
How much is the Part B late enrollment penalty?
The Part B late enrollment penalty is 10% of the standard premium for each full 12-month period you could have had Part B but didn't sign up. This penalty is added to your monthly premium for as long as you have Medicare. In 2025, the standard Part B premium is $185. In 2026, it's $202.90.
When does Medicare coverage start if I sign up at 65?
If you sign up during the first 3 months of your Initial Enrollment Period (before your birthday month), your coverage starts the first day of the month you turn 65. If your birthday is on the first day of a month, coverage starts the first day of the prior month. If you sign up later in your IEP, coverage may be delayed by 1–3 months.