The main windows to change your Medigap plan

You can change your Medicare Supplement (Medigap) plan outside the standard enrollment periods only if you have a may have access to life event — and the window to act is narrow. If you have no may have access to event, you are limited to the annual open enrollment period, which runs from October 15 to December 7 each year. Changes made during open enrollment take effect January 1 of the following year.

Outside of open enrollment, most insurers can deny you coverage or charge you more based on your health history. The exceptions are specific situations where federal law requires insurers to accept you at standard rates. These situations have strict time limits, usually 30 to 60 days from the triggering event.

If you miss the window for a may have access to event, you go back to waiting for the next October 15. There is no second chance within the same year, and no exceptions for "almost" may have access to events.

Key Takeaways

  • The annual open enrollment period for Medigap runs October 15 to December 7, and changes take effect January 1.
  • Outside open enrollment, you can only change plans if you have a may have access to life event, and you must act within 30 to 60 days of that event.
  • may have access to events include losing employer coverage, moving to a new state, or having your current plan discontinued by the insurer.
  • If you miss the important date for a may have access to event, you cannot change plans until the next open enrollment period in October.
  • Some states have additional protections that extend your window or allow changes in other situations — check with your state insurance commissioner's office.

may have access to life events that let you change plans outside open enrollment

The federal government recognizes a short list of events that trigger a special enrollment period for Medigap. The most common is loss of employer or retiree health coverage. If you were covered by a group health plan through your employer or a former employer and that coverage ends, you have 63 days from the date coverage ends to switch Medigap plans without medical underwriting.

Moving to a new state is another may have access to event. If your current Medigap plan is not sold in your new state of residence, you have 63 days from the date you move to change to a plan that is available there. You must be moving to establish residency, not just relocating temporarily.

If your current insurer discontinues your specific Medigap plan in your area, the insurer is required to notify you and give you the right to switch to another plan from the same company without medical review. If you want to switch to a different insurer's plan, you have 63 days from the date your plan is discontinued.

Some states recognize additional may have access to events. Massachusetts, Connecticut, and New York have their own rules that may allow you to change plans in other circumstances. Contact your state insurance commissioner's office to learn what applies where you live.

How to prove you have a may have access to event

When you contact an insurer to change plans outside open enrollment, they will ask for documentation of your may have access to event. For loss of employer coverage, you need a letter from your employer or the plan administrator stating the date coverage ended. A final pay stub showing no health insurance deduction is not sufficient on its own.

For a move to a new state, you will need proof of your new address — a utility bill, lease, or mortgage statement dated after your move. Some insurers also ask for a statement that you are establishing residency in the new state, not maintaining a second home.

For plan discontinuation, the insurer will have their own record of this event. You do not need to provide proof, but you should confirm the discontinuation date in writing before you explore to switch, because that date determines your important date.

Keep copies of all documents you submit. If an insurer later denies your request or charges you more than standard rates, you can file a complaint with your state insurance commissioner and provide the documentation as evidence.

The 30- to 60-day clock: when it starts and when it stops

The important date to act is measured from the date of the may have access to event, not the date you learn about it. For loss of employer coverage, the clock starts on the last day your coverage was in effect. For a move, it starts on the date you establish residency in the new state. For plan discontinuation, it starts on the date the plan ends.

You must submit your process to the new insurer before the important date ends. "Submit" means the insurer receives your completed process, not the date you mail it or call. If you are explore by mail, send it at least one week before the important date to account for postal delays. If you are explore online or by phone, confirm the submission date with the insurer in writing.

If your process is incomplete, the insurer will contact you to ask for missing information. You then have a short window — usually 10 to 15 days — to provide it. If you miss that second important date, your process may be denied, and you lose your special enrollment period.

What happens if you miss the important date

If you do not submit your process within the may have access to event window, you lose the right to change plans without medical underwriting. When you do explore — whether when ready after the important date or months later — the new insurer can review your health history and either deny you coverage or charge you a higher premium.

Some insurers will not cover you at all if you explore outside a may have access to event and open enrollment. Others will accept you but at a rate that reflects your age and health status at the time of process. There is no way to recover the special enrollment period once it closes.

Your only may provide opportunity to change plans after missing a may have access to event important date is the next annual open enrollment period, October 15 to December 7. During open enrollment, all insurers must accept you at standard rates regardless of health history.

Switching plans during the annual open enrollment period

Open enrollment runs October 15 to December 7 each year and is open to anyone with Medicare, regardless of health status or whether you have a may have access to event. You can switch from one Medigap plan to another, switch from Medigap to Medicare Advantage, or switch from Medicare Advantage to Medigap. Changes take effect January 1.

During open enrollment, all Medigap insurers must accept you at the standard rate for your age and location. They cannot charge you more or deny you based on your medical history, pre-existing conditions, or claims you have made. This is the safest time to change plans if you do not have a may have access to event.

You do not need to contact your current insurer to leave. Once your new plan's coverage begins on January 1, your old plan automatically ends. However, it is a good idea to confirm the end date with your old insurer to avoid being billed for overlapping coverage.

State-specific rules and protections

A handful of states have enacted their own Medigap protections that go beyond federal law. Massachusetts requires all Medigap insurers to accept applicants at standard rates year-round, with no medical underwriting at any time. Connecticut and New York have similar protections, though the details differ.

Some states allow you to change plans if your current plan's premium increases by more than a certain percentage, or if your insurer makes significant changes to the plan's benefits. These rules vary widely and change periodically.

To find out what protections explore in your state, contact your state insurance commissioner's office. You can find the contact information by searching "[your state] insurance commissioner" or by visiting the National Association of Insurance Commissioners website. Having your state's specific rules in hand before you explore to switch can prevent delays or denials.

Frequently Asked Questions

Can I change my Medigap plan if I switch from Original Medicare to Medicare Advantage?

No. Once you enroll in Medicare Advantage, you cannot switch to a Medigap plan unless you disenroll from Medicare Advantage first. If you disenroll, you may have a may have access to event window to change Medigap plans, depending on your reason for leaving Medicare Advantage and your state's rules. Contact your state insurance commissioner's office to confirm.

What if I change my mind after I enroll in a new Medigap plan?

Most Medigap plans have a 30-day "free look" period after enrollment. During this time, you can cancel the plan and return to your old plan without penalty. After 30 days, you are locked into the new plan until the next open enrollment period, unless you have a may have access to event.

Do I have to notify my current Medigap insurer before I switch?

No. Your current insurer will be notified automatically when your new plan begins. However, it is wise to confirm with your old insurer that your coverage will end on December 31 to avoid being billed for January.

If I move to a new state, can I keep my current Medigap plan?

Only if your current insurer sells that plan in your new state. If they do not, you have 63 days to switch to a plan available in your new state without medical underwriting. If your insurer does sell plans in your new state, you can keep your current plan, but you should confirm this with the insurer before you move.

What if my employer coverage ends but I am not yet 65?

You cannot enroll in Medigap until you are 65 and enrolled in Medicare Part B. However, once you turn 65 and enroll in Medicare, you may have a may have access to event window based on the date your employer coverage ended. The rules are complex and vary by state, so contact your state insurance commissioner's office for guidance.