Major 2026 Medicare enrollment and plan-change periods
Annual Enrollment Period — October 15 – December 7, 2026
From October 15 through December 7, what you can do depends on your current coverage. If eligible for the coverage involved, you may be able to:
- Switch from one Medicare Advantage plan to another
- Switch from Medicare Advantage to Original Medicare (and vice versa)
- Switch Part D prescription drug plans
A change received by the plan by December 7 generally takes effect January 1, 2027. Eligibility and service-area requirements still apply. Medigap availability and enrollment rights are separate.
Medicare Advantage Open Enrollment — January 1 – March 31, 2026
This period applies only if you are already enrolled in a Medicare Advantage plan. During MA-OEP you may:
- Switch to a different Medicare Advantage plan (one switch, not unlimited)
- Drop Medicare Advantage and return to Original Medicare, with an opportunity to join a separate Part D plan
You cannot use MA-OEP to move from Original Medicare into Medicare Advantage. A change generally takes effect the first day of the month after the plan receives the request. Medigap availability is separate and is not guaranteed by MA-OEP.
Initial Enrollment Period — first enrollment around age 65
The Initial Enrollment Period is primarily a first-enrollment period, not a general annual plan-switching window. For most people first eligible at 65, it begins three months before the month they turn 65 and ends three months after that month. Coverage start dates depend on the exact birthday and sign-up month, including a special rule for birthdays on the first day of a month.
Delaying Part B may create a coverage gap or penalty unless a qualifying Special Enrollment Period applies, commonly based on coverage from current employment. Part D uses a separate creditable-prescription-drug-coverage test.
Special Enrollment Periods — Triggered by Life Events
Special Enrollment Periods are event-specific. The changes permitted, the date the period begins and ends, and the effective date depend on the event. Examples include:
- Moving to a new ZIP code, especially out of your plan's service area
- Losing employer-based coverage (yours or a spouse's)
- Qualifying for Extra Help (Low-Income Subsidy for Part D)
- Qualifying for or losing Medicaid (Florida's Statewide Medicaid Managed Care)
- Entering or leaving a long-term care facility
- Plan contract non-renewal by the carrier or CMS
Do not assume a generic 60-day window. Verify the exact event, required evidence, and permitted action through Medicare.gov or 1-800-MEDICARE before relying on a deadline.
Medigap is different — there's no single annual window
Medigap does not use AEP as an annual enrollment period. The federal six-month Medigap Open Enrollment Period starts on the first day of the month you are 65 or older and enrolled in Part B. Outside that period or a guaranteed-issue right, there is no federal guarantee that an insurance company will sell a policy, and state protections may also apply. Applying for Medigap does not itself cancel existing coverage.
Should I switch every year?
A yearly review does not require a plan change. Review the Annual Notice of Change and current plan documents, including:
- Formulary coverage, tiers, restrictions, and pharmacy status for current prescriptions
- Provider and facility participation for the exact plan, location, and year
- Premiums, deductibles, copayments, coinsurance, and the maximum out-of-pocket limit
- Benefit limits and plan rules that affect the care and services you expect to use
A plan change occurs only after the beneficiary chooses and authorizes it and the plan receives a valid enrollment request during an allowed period. Contacting an agent or requesting a review does not enroll anyone or change coverage. David does not charge a separate fee for the plan-review assistance described here; compensation and availability vary by carrier and product.
Frequently asked questions
What is the Medicare Annual Enrollment Period (AEP)?
Open Enrollment runs October 15 through December 7. Depending on current coverage, a person may join, drop, or switch Medicare Advantage coverage; switch between Original Medicare and Medicare Advantage; or join, drop, or switch a Medicare drug plan. Requests received by December 7 generally take effect January 1.
What is the Medicare Advantage Open Enrollment Period (MA-OEP)?
Medicare Advantage Open Enrollment runs January 1 through March 31 for people already enrolled in Medicare Advantage. One change is permitted to another Medicare Advantage plan or to Original Medicare, with an opportunity to join a separate drug plan when returning to Original Medicare. The change generally takes effect the first day of the next month.
Can I switch Medicare plans outside of AEP and MA-OEP in Florida?
Special Enrollment Periods are event-specific. The permitted change, window, and effective date depend on the event, so a generic 60-day deadline should not be used.
When can I first sign up for Medicare in Florida?
For most people first eligible at 65, the Initial Enrollment Period begins three months before the month they turn 65 and ends three months after that month. Coverage start depends on the exact birthday and sign-up month. Part B and Part D use different rules when evaluating delayed enrollment and penalties.
Can I switch Medigap plans any time in Florida?
A person may apply for Medigap, but outside the federal six-month Medigap Open Enrollment Period or a guaranteed-issue right, there is no federal guarantee that an insurance company will sell a policy. State protections may also apply.
Should I switch Medicare plans every year during AEP?
Review current plan documents each year, but change coverage only when the beneficiary chooses and authorizes a change during an allowed enrollment period. Requesting a review does not enroll anyone or change coverage.
Want help reviewing your Medicare options?
A review can help confirm current coverage, providers, prescriptions, costs, and enrollment timing before you decide whether to make a change. Plan availability and fit depend on ZIP code, current plan-year information, and eligibility. Contacting an agent does not enroll you or change coverage. Polk County local. FL License #W371813.
📞 Call 863-640-3102 Get Plan Help (online)Related Medicare resources
Sources reviewed August 17, 2026: Medicare enrollment periods, Open Enrollment, Special Enrollment Periods, and Social Security sign-up timing.
We do not offer every plan available in your area. Currently we represent 10 organizations which offer 73 products in your area. Please contact Medicare.gov, 1-800-MEDICARE, or your local State Health Insurance Program to get information on all of your options.
Company inventory note: HealthMarkets/Connecture displayed 10 organizations and 73 products for the selected 2026 Lakeland/Polk County service area on August 17, 2026. Those figures are not CMS counts or statewide Florida totals. Counts and available products vary by ZIP code, service area, plan year, and current company authorization. Confirm the ZIP code and current approved platform inventory before relying on these figures. Plan availability, benefits, networks, formularies, pharmacies, and costs are subject to the applicable plan documents and service area.