Missed Medicare Enrollment? Options, Penalties, and Next Steps
Your main option is the General Enrollment Period, which runs January 1 through March 31 each year. Coverage starts the month after you sign up. If you have a valid Special Enrollment Period still open, use that first — the SEP avoids the permanent penalty that typically applies under the GEP. A Part B late-enrollment penalty of 10% per year applies for each full 12-month period you were eligible but not enrolled.
Frequently Asked Questions
- Can I enroll in Medicare at any time if I missed my IEP?
- No. Without a valid Special Enrollment Period, enrollment is limited to the General Enrollment Period (January 1 through March 31). Coverage starts the month after you sign up, and a permanent penalty applies for each full 12-month period you were eligible but not enrolled.
- Is there any way to avoid the penalty if I missed the IEP?
- If a Special Enrollment Period applies — for example, you recently lost active employer group health coverage from a 20-plus employee employer — you can enroll through the SEP without a penalty. If no SEP applies, the GEP is the only option and the penalty is permanent.
- What if I was given wrong information that caused me to miss enrollment?
- You may be able to request equitable relief if you can document that you received incorrect information from Medicare, Social Security, an employer, or an insurer. This is not guaranteed but is worth exploring. Contact Social Security or your State Health Insurance Assistance Program (SHIP) for help.