How to Cancel or Drop Your Medicare Coverage

When and how you can cancel Medicare

You can cancel Medicare, but the rules depend on which type of coverage you have and when you want to stop. Original Medicare (Parts A and B) cannot be fully cancelled while you are still a U.S. citizen and permanent resident — you can only drop Part B. Medicare Advantage (Part C) and Medicare Supplement (Medigap) plans can be cancelled any time, though you may face penalties if you drop them and rejoin later. Medicare Part D (prescription drug coverage) can be dropped, but you will owe a penalty if you go without it and sign up again later.

The process itself is straightforward: you contact your plan directly or call Medicare at 1-800-MEDICARE. The timing matters because cancellation takes effect on different dates depending on when you submit your request. If you are thinking about cancelling because of cost, coverage gaps, or a life change, understanding your options first can save you from unexpected bills or coverage lapses.

Key Takeaways

You can drop Medicare Part B, Medicare Advantage, Medigap, or Part D at any time, but dropping Part B or Part D may result in future penalties.
Cancellation requests submitted between the 1st and 15th of a month take effect on the 1st of the next month; requests after the 15th take effect on the 1st of the month after that.
If you cancel Medicare Advantage or Medigap, you have a limited window to switch to a different plan without medical underwriting.
Dropping coverage without a valid reason (like employer coverage or moving out of the country) triggers a late-enrollment penalty when you rejoin.
Contact your insurance company directly or call 1-800-MEDICARE to start the cancellation process.

Cancelling Original Medicare Part B

Part B covers doctor visits, outpatient care, and medical equipment. You can cancel it, but Medicare Part A (hospital insurance) will remain active. To drop Part B, you must contact Social Security at 1-800-772-1213 or visit your local Social Security office in person. You will need to sign a form stating you want to end Part B coverage.

The main reason people cancel Part B is because they have employer coverage through a current job and do not need Medicare yet. If you cancel Part B and later rejoin without employer coverage as your reason, you will pay a 10% higher premium for each year you were without it — permanently. This penalty applies for as long as you have Medicare, so cancelling Part B is a decision to think through carefully.

Dropping Medicare Advantage or Medigap plans

Medicare Advantage and Medigap are private insurance plans that you can cancel at any time without penalty. To cancel, contact your insurance company directly — the phone number is on your insurance card. You can also call 1-800-MEDICARE and ask them to submit the cancellation request on your behalf.

When you cancel a Medicare Advantage plan, you have 63 days to switch to a different Advantage plan or to Original Medicare with a Medigap plan. During this window, Medigap companies cannot deny you coverage or charge you more based on your health history — this is called may provide issue. If you miss this window, you may face medical underwriting, meaning the insurance company can ask about your health and deny you or charge higher rates. If you are switching plans, submit your cancellation request as soon as you have chosen your new coverage.

Dropping Medicare Part D prescription drug coverage

Part D covers prescription medications through private insurance companies. You can cancel it at any time by contacting your Part D plan directly or calling 1-800-MEDICARE. Cancellation takes effect on the 1st of the month following your request (using the same timing rules as other plans).

If you drop Part D and go without prescription drug coverage for 63 days or more, you will owe a late-enrollment penalty when you rejoin. The penalty is 1% of the national average Part D premium for each month you were without coverage, and it is added to your premium permanently. For example, if you go without coverage for one year, you will pay roughly 12% more each month for the rest of your life. The only exceptions are if you have other creditable drug coverage (through an employer or union) or if you are moving out of the country.

Timing and effective dates for cancellation

Medicare processes cancellation requests on a monthly schedule. If you submit your request between the 1st and 15th of any month, your coverage ends on the last day of that month (effective the 1st of the next month). If you submit between the 16th and the end of the month, your coverage ends on the last day of the following month.

This timing matters if you are switching plans. If you want your new plan to start on January 1st, you must cancel your old plan by December 15th. If you cancel after December 15th, your old plan will not end until January 31st, and you may have overlapping coverage or a gap. When you call to cancel, ask the representative to confirm the exact end date before you hang up.

What happens after you cancel

Once your Medicare coverage ends, you are no longer insured through Medicare. If you have medical expenses, you will pay out of pocket unless you have other coverage — such as employer insurance, Medicaid, or Veterans benefits. If you cancel and later want to rejoin, you can do so during the general enrollment period (January 1 to March 31 each year), and coverage would start July 1st. Outside this window, you can only rejoin if you have a may have access to life event, such as losing employer coverage or moving to a new state.

If you are cancelling because you are moving out of the United States, you should notify Social Security and Medicare in writing. You may be able to keep Part A if you worked long enough to earn it, but Parts B, C, and D will end. If you move back to the United States later, you can rejoin Medicare without penalties related to the time you spent abroad.

Reasons to reconsider before cancelling

Before you cancel, check whether you have other coverage in place. If you are relying on employer coverage, confirm that it starts on the same day your Medicare ends — gaps in coverage can be expensive. If you are cancelling Part B to save money, look into whether you may have access to for Extra Help (a program that lowers Part D costs) or Medicare Savings Programs (which help pay Part B and Part D premiums). These programs are free and can make Medicare more affordable than cancelling.

If you are unhappy with your current plan, you may be able to switch instead of cancelling. During the annual enrollment period (October 15 to December 7), you can change Medicare Advantage plans, Medigap plans, or Part D plans without losing coverage. If you have a may have access to life event — such as losing employer coverage, moving, or getting married — you can switch outside the enrollment period. Switching is often better than cancelling because you avoid gaps in coverage and future penalties.

Frequently Asked Questions

Can I cancel Medicare if I have employer coverage?

Yes. If your employer offers health insurance and you are still working, you can drop Medicare Part B (but not Part A). You will not face a late-enrollment penalty when you rejoin after you leave your job, as long as you sign up within eight months of losing the employer coverage. Keep a record of your last day of employment and your coverage end date.

What if I cancel by mistake?

Contact Medicare or your insurance company right away. If you catch the error before your cancellation takes effect, they may be able to stop it. If your coverage has already ended, you can rejoin during the general enrollment period (January 1 to March 31) with coverage starting July 1st, or when ready if you have a may have access to life event.

Do I have to cancel all my Medicare coverage at once?

No. You can cancel Part B without affecting Part A. You can drop Medicare Advantage and switch to Original Medicare with Medigap. You can cancel Part D separately from other coverage. Each piece of Medicare can be managed independently, so you can keep what you need and drop what you do not.

Will I owe money if I cancel mid-month?

No. Medicare charges by the month, and your cancellation takes effect on the 1st or the last day of a month — never in the middle. You will not be charged for days after your coverage ends, and you will not receive a refund for days before it ends.

What if I am moving out of the country?

Notify Social Security in writing that you are moving abroad. Parts B, C, and D will end, but you may keep Part A if you earned it through work. When you move back to the United States, you can rejoin Medicare without penalties for the time you spent outside the country.

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.