Missed the main enrollment window, or had a big life change? A Special Enrollment Period may let you enroll or switch plans without waiting and without a penalty. Here is when they apply.
Most plan changes happen during the Annual Enrollment Period (October 15 to December 7). But certain life events open a Special Enrollment Period, a window that lets you enroll in or change your Medicare coverage outside the normal dates, usually without a late penalty. Each event has its own timing, so acting promptly matters.
Retiring or losing job-based coverage gives you a window (up to 8 months for Part B) to enroll without penalty.
Moving to a new address outside your plan's service area opens a window to pick a new plan.
Gaining, losing, or changing eligibility for Medicaid or Extra Help lets you change Advantage or Part D plans.
If your plan is discontinued or its contract with Medicare ends, you get a window to switch.
Entering or leaving a skilled nursing facility or long-term care opens a special window.
You can move to a 5-star rated Advantage or Part D plan once during the year where one is available.
Every SEP has a deadline tied to the event, and miss it and you may have to wait for the Annual Enrollment Period, sometimes with a penalty. If you have had a recent life change, it is worth a quick check now.
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Cole Insure, LLC is a licensed independent insurance agency. This is an advertisement for insurance-related services. Figures, income brackets, enrollment rules, and deadlines are set by Medicare and the Social Security Administration, change annually, and depend on your personal situation; the examples here are general and not a determination for your case. Medicare has neither reviewed nor endorsed this information. We are not affiliated with or endorsed by the U.S. government or the federal Medicare program. To get information on all of your options, contact Medicare.gov, 1-800-MEDICARE (TTY 1-877-486-2048), or your local State Health Insurance Program (SHIP). Details are current as of 2026 and subject to change.