What Guaranteed Issue Rights Actually Mean (and Why They Exist)
If you’re over 65 and applying for a Medigap policy outside of your initial enrollment window, an insurance company can legally turn you down based on your health history. Guaranteed issue rights are the exception to that rule. They’re federal protections that force insurers to sell you a Medigap plan at standard rates, no medical questions asked, during specific life events.
The reason these rights exist comes down to how Medigap underwriting works. Unlike employer group health insurance, Medigap carriers in most states are allowed to look at your medical history and charge you more, or flat-out refuse to cover you, if you apply outside of protected windows. Congress recognized that certain situations leave people stuck through no fault of their own, and guaranteed issue rights are the safety valve.
Here’s the thing. A lot of people assume that because Medicare itself doesn’t require underwriting, Medigap works the same way. It doesn’t. They’re two completely different systems, and confusing them is one of the most expensive mistakes I see people make.
The Specific Situations That Trigger Your Rights
Guaranteed issue rights don’t kick in just because you want to switch plans. Something specific has to happen. The federal government lays out these trigger events clearly, and I’d encourage you to read this list carefully because missing one by even a few weeks can cost you real money.
- Your Medigap insurer goes bankrupt or leaves your state. If your current plan collapses or stops being offered in your area, you’re entitled to buy a new Medigap plan without underwriting.
- You leave an employer-sponsored plan. If you had retiree health coverage or a group health plan through work that was supplementing Medicare, and that coverage ends, you have a guaranteed issue right to buy a Medigap plan.
- You drop Medigap to join a Medicare Advantage plan for the first time. If you were new to Medicare Advantage and it turns out not to work for you, you have a 12-month trial period. Leave within that first year, and you can return to your original Medigap plan or enroll in a new one with full guaranteed issue protection.
- Your Medicare Advantage plan leaves your area or stops accepting Medicare. You can’t be penalized for your insurer’s decision to stop serving your area.
- You were covered by someone else’s Medicare Advantage or Medigap plan and that person died. Losing coverage due to a spouse’s death triggers your rights.
- You enrolled in Medigap during your Medigap open enrollment and the plan’s claims were paid based on incorrect information. This is a narrow one, but it’s there.
In most of these situations, you have 63 days from the date your old coverage ends to exercise your rights. That clock starts ticking the moment your coverage lapses. I’ve talked to people who thought they had six months, or that the window was “whenever you get around to it.” It isn’t. 63 days, and then you’re back in the general underwriting pool.
Which Medigap Plans You Can Actually Buy Under These Rights
This is where people get a surprise. Guaranteed issue rights don’t let you choose any plan on the market. The federal rules specify which plans insurers must offer you, and that list depends on your situation.
For most guaranteed issue situations, you’re entitled to Plans A, B, C, F, K, or L. But C and F are only available if you turned 65 before January 1, 2020, because those plans cover the Part B deductible, which is no longer allowed for newly eligible Medicare beneficiaries under MACRA. If you became eligible for Medicare after January 1, 2020, your realistic options under guaranteed issue are typically Plan A, B, K, or L.
Here’s a comparison of the main plans available under guaranteed issue rights and what they actually cover:
| Plan | Part A Coinsurance | Part B Coinsurance | Part A Deductible | Part B Deductible | Out-of-Pocket Limit (2026) |
|---|---|---|---|---|---|
| Plan A | 100% | 100% | No | No | None |
| Plan B | 100% | 100% | Yes | No | None |
| Plan K | 100% | 50% | 50% | No | ~$7,220 |
| Plan L | 100% | 75% | 75% | No | ~$3,610 |
| Plan F (pre-2020 eligible only) | 100% | 100% | Yes | Yes | None |
| Plan C (pre-2020 eligible only) | 100% | 100% | Yes | Yes | None |
I’ll be direct: if you became eligible for Medicare after 2020 and you’re exercising guaranteed issue rights, Plan A gives you the most basic protection and nothing more. The 2026 Part A deductible is $1,676 per benefit period, and Plan A doesn’t cover that. That’s a real exposure. Plan B covers it, and that’s why most people in this situation are better served by Plan B if they can get it under their specific trigger event.
The Mistake That Costs People the Most Money
I’ve seen this happen more than I’d like to admit. Someone turns 65, decides they want to try Medicare Advantage because the $0 premium sounds appealing, and they skip their initial Medigap open enrollment period without understanding that it only comes around once. Then, a few years later, they develop a health condition. They want to switch to original Medicare with a Medigap plan. And they find out that without a guaranteed issue trigger event, insurers can turn them down or charge them significantly more.
That’s the core misconception: people think they can switch back to Medigap whenever they feel like it. You can’t, at least not with full protections. The initial open enrollment window you get when you first turn 65 and enroll in Part B is the most powerful Medigap protection that exists. It lasts six months and never comes back.
There is one narrow exception worth knowing. If you joined Medicare Advantage for the very first time and you leave within 12 months, you get that trial period protection. But if you’ve been in Medicare Advantage for three years and now you want out? You’re relying on a specific guaranteed issue trigger event, or you’re going through underwriting. In most states, that means you could be denied entirely if you have diabetes, heart disease, COPD, or any number of common conditions.
A 67-year-old in Ohio who has been in Medicare Advantage since 65 and now has a cancer diagnosis may find that no Medigap insurer will touch her unless she qualifies for a guaranteed issue trigger. That’s not a hypothetical. I’ve heard versions of that story too many times.
State Rules Can Give You More Protection Than Federal Law
Here’s something a lot of people don’t know: several states go further than federal law and give you broader Medigap protections. This matters because federal law sets the floor, not the ceiling.
States like New York and Massachusetts require Medigap insurers to use community rating and offer guaranteed issue year-round. In other words, you can apply for Medigap in New York at any age and any time, without underwriting, regardless of your health. The trade-off is that premiums are higher for healthy people because risk is spread across everyone.
Connecticut, Maine, and a handful of other states also have expanded protections, including annual enrollment windows or continuous guaranteed issue rights for certain plans. If you live in one of these states, your situation is fundamentally different from someone in Texas or Georgia, where the standard federal rules apply and underwriting outside of protected windows is the norm.
Before you assume you’re stuck, look up your state’s specific rules. Your state insurance commissioner’s website is where you’ll find this. And if you’re working with an independent broker, make sure they know your state’s rules cold. Some don’t, and that costs people coverage they were entitled to.
Bottom Line
If you have a legitimate guaranteed issue trigger event, use it within 63 days and don’t wait. For most people who became eligible for Medicare after 2020, Plan G is off the table under guaranteed issue, so Plan B is usually your strongest realistic option to limit out-of-pocket exposure. And if you haven’t hit 65 yet? Your initial open enrollment window when you first sign up for Part B is the most valuable Medigap right you’ll ever have, and I’d strongly encourage you not to skip it just because Medicare Advantage looks cheaper today.
Frequently Asked Questions
Can I be charged more during a guaranteed issue period even if the insurer has to accept me?
No. Guaranteed issue means the insurer can’t use your health history to set your premium. They still use standard rating factors like your age, sex, and where you live, but they can’t add a surcharge or apply a waiting period because of your specific medical conditions. That said, if your state uses attained-age rating, your premiums will still increase as you get older over time.
What if I miss the 63-day window? Is there anything I can do?
In most states, your only real option is going through medical underwriting, which means the insurer reviews your health history and can decline you or charge a higher rate. If your state has expanded protections, you may still have options, which is why checking your state rules matters. Otherwise, you may find yourself relying on Medicare Advantage or going without supplement coverage entirely until another trigger event occurs.
Does having COBRA coverage after losing a job extend my guaranteed issue window?
This one’s tricky. If you took COBRA after leaving a job, your guaranteed issue right to buy Medigap doesn’t kick in the day you left the job. It kicks in when the COBRA coverage actually ends. Some people think they’ve lost their window because they used COBRA as a bridge. You haven’t, but your 63-day clock starts when COBRA ends, not when employment ended.
I’m enrolled in Medicare Advantage and thinking about switching. Do I automatically have guaranteed issue rights?
Not automatically. Simply wanting to switch isn’t a trigger. You need a qualifying event, like your plan leaving your service area, your plan stopping Medicare coverage, or you being within your first 12 months of your first Medicare Advantage enrollment. If none of those apply, you’re going through underwriting in most states, which is why the timing of when you make decisions about Medicare Advantage really matters.
