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Guaranteed Issue Rights in Medicare: When Medigap Can’t Turn You Down

Woman reviewing a health coverage notice

Guaranteed issue rights are protections that let you buy a Medicare Supplement (Medigap) policy in specific situations without an insurer refusing you, charging more for your health, or excluding your existing conditions. They are separate from your one-time Medigap Open Enrollment Period, and most of them come with a tight deadline: you can generally apply starting 60 days before your coverage ends and no later than 63 days after it ends. Miss that window and, in most cases, the insurer can ask health questions and say no.

This guide explains who qualifies, how the clock works, what the insurer must and must not do, and what changes if no right applies to you.

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TL;DR

A guaranteed issue right is a limited window to buy certain Medigap plans with no medical underwriting, usually triggered by losing other coverage.
Most windows run from 60 days before to 63 days after your coverage ends. Keep the termination notice as proof.
Your Open Enrollment Period is different: it is a one-time six-month window that starts when you are 65 or older and enrolled in Part B.
Outside these windows, insurers in most states can use health questions to decline you or raise your price.
States can add protections beyond federal law, so check Colorado’s rules before you decide.

Guaranteed issue rights versus Medigap Open Enrollment
Situations that give you a guaranteed issue right
The quick reference table
How the deadlines work
What the insurer must do when you apply under a right
When no guaranteed issue right applies: medical underwriting
State rules can go further than federal law
Steps to take when you think you have a right
Get help comparing Medigap plans in Colorado
FAQ
Sources

Guaranteed issue rights versus Medigap Open Enrollment

People mix these up because both mean “no health questions.” They are two different things.

Medigap Open Enrollment happens once. It is a six-month period that begins when you are 65 or older and enrolled in Part B. During it, an insurer cannot refuse any Medigap policy it sells, use medical underwriting, deny pre-existing conditions, or charge more because of health problems. It is the widest door you will get, because you can pick from every plan the insurer offers.

Guaranteed issue rights are narrower. They apply in certain situations, mostly when you lose coverage through no fault of your own, and often only for certain plans. They can happen long after your Open Enrollment Period has closed, which is why they matter so much for people who started with Medicare Advantage or employer coverage.

Comparison of Medigap enrollment protections

If you are still working out when your Open Enrollment window starts, our walkthrough on confirming your Part B date for Medigap Open Enrollment shows how to find it.

Situations that give you a guaranteed issue right

Medicare lists the federal situations in its Choosing a Medigap Policy guide. The main ones fall into a few groups.

You are leaving Medicare Advantage

You may have a right to buy Medigap if your Medicare Advantage plan ends, leaves Medicare, stops serving your area, or you move out of its service area. The same guide describes two first-year trial rights: if you joined Medicare Advantage when you first became eligible at 65 and want to go back to Original Medicare within the first year, or if you dropped a Medigap policy to try Medicare Advantage for the first time and want out within a year, you can qualify.

That second trial right is one Colorado clients ask about often. We cover the details in Medicare trial right and your 12-month Medigap window.

You are losing other coverage that pays after Medicare

If you have Original Medicare plus employer, retiree, union, or COBRA coverage that pays after Medicare, and that coverage is ending, you have a federal guaranteed issue right. With COBRA, Medicare says you may buy Medigap right away or wait until the COBRA coverage ends. The timing of COBRA and Part B trips up many people, so read how COBRA interacts with your Part B clock before you rely on it.

You are moving out of a Medicare SELECT area

If you have a Medicare SELECT policy and move outside its service area, you can qualify for a right to buy another Medigap policy.

Your Medigap policy ended through no fault of yours

Examples include an insurer going bankrupt or your policy ending for reasons that are not your doing. Certain insurer fraud or rule violations also count. KFF notes that insurer fraud is a federal trigger.

What does not create a right

This is where people get caught. According to KFF, beneficiaries generally do not have federal guaranteed issue to switch Medigap plans voluntarily, or to come back after voluntarily dropping Medigap. Losing Medicaid eligibility generally does not create a new federal guaranteed issue period either. There is one exception: if you had Medigap before you became eligible for Medicaid, you can suspend that policy for up to two years and restart it without new underwriting or pre-existing condition waiting periods within that time, as KFF explains.

If you are thinking of changing plans, our article on switching Medigap plans without losing coverage walks through the safe order of steps.

The quick reference table

Your situation Right to buy Medigap? Typical window Medicare Advantage plan ends or leaves your area Yes Up to 60 days before to 63 days after coverage ends Moved out of a Medicare Advantage plan’s service area Yes Window set by the plan’s end or your move First-year Medicare Advantage trial right Yes Within the first year of the trial Employer, retiree, union or COBRA coverage ending Yes Up to 60 days before to 63 days after Medicare SELECT policy and you move away Yes Window tied to your move Medigap lost through bankruptcy or no fault of yours Yes 63 days after coverage ends You simply want a different Medigap plan Generally no (federal) None Open Enrollment Period (65+, in Part B) Yes, any plan the insurer sells Six months, once

The exact plans you can choose depend on the event. Medicare’s guide spells out which plans you are entitled to in each case, so confirm against your own situation.

How the deadlines work

The clock is where most people lose their rights. The key points from Medicare’s guide:

Apply early if you can. Many events let you apply as soon as 60 days before your coverage ends.
Do not wait past 63 days. For most events, 63 days after the coverage ends is the last day to apply.
Know which date counts. For employer or union coverage, the window runs from the latest of the end date, the date on your termination notice, or the date of a claim denial when that denial is the only notice you receive.
Keep your proof. Hold on to the termination notice, the plan’s notice, or the claim denial. The new insurer may ask for it.
Mind the start date. Your new Medigap coverage cannot begin before a terminating Medicare Advantage policy ends, so line up the dates to avoid a gap.

A simple example: your employer retiree plan sends a letter on March 1 saying coverage ends March 31. You can apply starting around the end of January, and your last day is generally 63 days after March 31. Put both dates on a calendar the day the letter arrives.

If you want to see how these windows sit alongside your Part B dates, the Medicare enrollment timeline lays out the sequence.

What the insurer must do when you apply under a right

When you apply inside a valid window, the rules protect you in three ways, according to Medicare:

The insurer must sell you a qualifying Medigap policy.
The insurer cannot charge you more because of past or present health problems.
The insurer must cover your pre-existing conditions.

On that last point, a pre-existing condition exclusion can generally apply only to a condition diagnosed or treated in the six months before your Medigap coverage starts. Up to six months of continuous prior creditable coverage can eliminate that waiting period. With a guaranteed issue right, the insurer must cover those conditions, so you should not see a waiting period.

Two cautions. First, you are entitled only to the plans and timing allowed for your particular qualifying event, not every plan on the market. Second, health is not the only pricing factor. KFF notes that smoking can still affect price through a permitted non-smoker discount, even where underwriting is otherwise off the table. Age, location and other rating rules also affect premiums, so the same plan can cost different amounts from different carriers. That is a good reason to compare several carriers.

When no guaranteed issue right applies: medical underwriting

If you are outside your Open Enrollment Period and have no qualifying event, you are in underwriting territory. KFF explains that in most circumstances, insurers may reject an application based on a health condition or charge higher premiums. Some states limit or prohibit underwriting, so check with your state insurance department.

What do the health questions look like? Carrier applications commonly ask about the prescription medications you take, and whether you have been advised to have surgery, medical tests, treatment or therapy that has not yet been done. One carrier’s underwriting guide shows this kind of wording, and your answers can affect whether you are accepted. Questions and standards differ by carrier, which is exactly why a decline from one company does not always mean a decline from all.

A few practical habits help:

Answer accurately and completely. An application with incomplete answers can create problems later.
Do not cancel your current policy first. Wait until the new one is approved and in force.
Ask about every carrier. Underwriting rules vary, so one decline is not the end of the road.
Check your state. Colorado, like every state, can offer protections beyond the federal floor.

State rules can go further than federal law

Federal rules are a floor. KFF’s analysis shows states may expand guaranteed issue, regulate switching, or restrict underwriting. The NAIC reports that only Connecticut, Maine, Massachusetts and New York require guaranteed issue protections for everyone 65 and older in traditional Medicare, regardless of medical history, and they differ on whether the protection is continuous or annual. The same report says Minnesota, Vermont and Washington require community rating without the same universal guarantee, and California, Oregon and Missouri have additional switching rules.

Colorado is not on that short list of broad guarantees, so Colorado residents should generally plan around the federal windows and the six-month Open Enrollment Period. Medicare advises everyone to check with their State Insurance Department because states may add guaranteed issue and open enrollment protections. For a Colorado-specific answer, that is the Colorado Division of Insurance, and a licensed Colorado broker can tell you how the rules apply to your dates.

Our perspective

We see the same pattern every year in Colorado. Someone is happy with a Medicare Advantage plan or retiree coverage, then a letter arrives saying the plan is changing or ending. The 63 days feel long until they are not, and the people who do best are the ones who call us when the letter arrives, not in week eight.

As independent, licensed brokers, we are not tied to one carrier. That matters when a guaranteed issue right applies, because you are entitled to certain plans and we can compare them across carriers for your situation. It matters even more when no right applies and underwriting is in play, because different carriers can look at the same health history differently.

Our job does not stop at enrollment. We help with claims questions and yearly plan reviews, so the plan you pick this month is checked again as your health, drugs and budget change. If you suspect you have a window open right now, check your dates first and then talk to us.

Zach

Steps to take when you think you have a right

Find the trigger date. Read the termination notice and note the end date, the notice date and any claim denial date.
Count your window. Mark 60 days before and 63 days after the coverage end date.
Confirm your Part B. Medigap requires Medicare Parts A and B. If you need to check your timing or possible penalty, use the Part B penalty calculator.
Gather proof. Keep the notice from the plan or employer.
Compare plans and carriers. Premiums vary, even when a plan letter is the same.
Apply before the deadline, and keep current coverage until the new policy is active.

If you are still working and wondering when you must sign up for Part B, our guide to the 8-month Special Enrollment deadline explains the pattern, and the Medicare eligibility calculator shows where you stand.

Get help comparing Medigap plans in Colorado

We are an independent brokerage in Castle Pines serving Colorado. We can look at your qualifying event, confirm the window, and compare Plan G, Plan N and other Medigap options across carriers, with no direct cost to you. See our Medigap plans in Castle Pines, or book a Medicare planning conversation and bring your termination notice.

Simplyinsuranceforyou

If your question is whether Medigap or Medicare Advantage suits you better, start with Medicare Advantage versus Medigap.

FAQ

Do guaranteed issue rights last forever?

No. Each right is tied to an event, and most windows run from 60 days before your coverage ends to 63 days after. Your Open Enrollment Period is a one-time six-month window. After the deadline passes, insurers in most states can use medical underwriting.

Can I use guaranteed issue to switch from one Medigap plan to another?

Generally not under federal rules. According to KFF, voluntary switching does not carry a federal guaranteed issue right. Some states have their own switching rules, so check your state insurance department before you cancel anything.

Does a guaranteed issue right cover pre-existing conditions?

Yes. Medicare says that when you buy under a guaranteed issue right, the insurer must cover your pre-existing conditions and cannot charge you more because of your health. You are still limited to the plans allowed for your event.

What if I miss my window?

You can still apply for Medigap, but the insurer may ask health questions and may decline you or charge more. Applications and standards vary by carrier, so it is worth asking several. A licensed broker can compare them for you.