Large Medigap Rate Increases - What Changed?

If you’ve been enrolled in a Medigap plan for a while, you probably noticed something felt different recently:

Premium increases were not just higher, they were noticeably outside the normal range most people had come to expect.

After working in the Medicare space for more than fifteen years, I can tell you that Medigap rate increases have historically been fairly predictable. In most years, premiums tended to rise somewhere in the 3% to 7% range. It wasn’t ideal, but it was manageable. People could plan for it, and nothing felt too disruptive.

That pattern started to break in 2024, and by 2025, it became much more obvious.

Across many states and carriers, beneficiaries began seeing larger-than-normal rate increases, sometimes well into the double digits. For people on fixed incomes, that kind of jump stands out quickly. It also raised many questions about whether something had fundamentally changed in the Medigap market.

And to be clear, this is not a small group of people we’re talking about. Today, roughly 14 million Americans are enrolled in Medicare Supplement plans, out of about 70 million total Medicare beneficiaries nationwide. When pricing shifts occur in this space, they affect a large share of retirees nationwide.

So the real question is not just that rates increased. It’s why they increased more than usual, and whether this is a temporary spike or something we should expect going forward.

What We Saw With Medigap Rate Increases

Based on the clients we work with, the increases reported over the past year were clearly higher than most beneficiaries were used to. This wasn’t isolated to one Medigap company or one region. It appeared across multiple carriers and states, though some areas were hit harder than others.

Here are a few real-world patterns we observed:

  • Cigna HealthSpring Medigap plans: roughly 10% to 12% increases
  • Florida (multiple carriers): around 15% increases
  • Several states nationwide: commonly 15% to 25% increases
  • Certain Illinois cases: increases as high as 40%

That last category was not the norm, but it did occur in specific business blocks, and it caught many people off guard.

To put this in perspective, most long-time Medigap policyholders were used to modest annual adjustments. Historically, an increase might mean an extra $5 to $10 per month.

During the 2024–2025 cycle, many beneficiaries instead saw increases closer to $30 to $50 per month.

That is a meaningful jump, especially for retirees managing a fixed income. For many people, it was the largest premium increase they had experienced since first enrolling in Medicare.

The key takeaway is that this wasn’t just a routine adjustment year. It was a noticeable shift, and it’s exactly why more beneficiaries are now taking a closer look at their options instead of simply renewing year after year.

Medigap Rate Increases Happened Nationwide

One of the most important things to understand about the recent rate increases is that this wasn’t isolated to one company or one part of the country. We saw similar patterns across multiple carriers and multiple regions.

Medigap pricing is set at the state level, with each insurance company filing its own rates with state regulators. As a result, pricing can vary by carrier, plan, and market.

Even with those differences, the broader trend during the 2024–2025 cycle was consistent. Most areas of the country experienced higher-than-normal increases.

Here’s how it generally broke down by region:

Region Typical Increase Range
Northeast 8% – 16%
Southeast 10% – 30%
Midwest 10% – 30%
Southwest 12% – 25%
Mountain West 10% – 20%
West Coast 8% – 16%

Of course, individual results still depended on the carrier. Some companies came in on the lower end of these ranges, while others pushed higher depending on their pricing strategy and claims experience.

But when you step back and look at the full picture, the takeaway is clear: these increases were not isolated events. They were happening across the country, across multiple insurers, and across multiple plan types.

That’s what made the 2024-2025 cycle stand out. It wasn’t just that rates went up. It’s that they went up almost everywhere at the same time, which is rare in the Medigap market.

The Medigap Pricing War Most Consumers Never See

Behind the scenes, there’s a level of competition in the Medigap market that most beneficiaries never hear about.

Every day, roughly 11,000 Americans turn 65 and become eligible for Medicare. That steady wave of new enrollees has made the Medicare market one of the fastest-growing segments in health insurance. Naturally, insurance companies want a piece of that growth.

To compete, many carriers use a strategy that looks great on the surface. They enter a market with very aggressive pricing, often coming in lower than established competitors to attract new policyholders quickly. And it works.

Lower premiums get attention. Agents quote those plans more often. Enrollment grows.

But here’s the part most consumers don’t see.

When a company prices aggressively, they’re making assumptions about future claims. If those assumptions are even slightly off, meaning members use more healthcare than expected, the company has to adjust.

And the only way to do that is through rate increases.

So what you often get is a cycle:

  • A carrier enters the market with very competitive rates
  • Enrollment grows quickly
  • Claims come in higher than projected
  • Premiums increase to correct the pricing

This doesn’t happen with every company, but it’s common enough to play a real role in what we saw during the 2024-2025 rate cycle.

From a consumer standpoint, it can feel frustrating. A plan that looked like a great deal at enrollment may experience larger adjustments a few years later.

That’s why experienced Medicare advisors don’t just look at today’s lowest price. They also consider how a company has priced and adjusted rates over time, because in the Medigap world, stability matters just as much as the starting premium.

Examples of Aggressive Pricing

You can see this pricing strategy play out when new carriers enter the Medigap market and try to gain traction quickly. In several recent cases, newer or expanding companies launched plans with premiums well below those of established carriers like UnitedHealthcare, Aetna, Cigna, Mutual of Omaha, and Blue Cross Blue Shield affiliates.

On paper, these plans looked like obvious winners. Lower premiums for the same standardized coverage will naturally attract attention from both consumers and agents.

One example was ACE (Chubb). They entered the Medigap space with pricing that was noticeably lower than that of many competitors.

As expected, that pricing led to rapid enrollment growth.

But not long after, the company decided to pause new Medigap applications while it evaluated how its claims experience was developing in that block of business.

That kind of move usually signals that actual healthcare use is higher than originally projected.

We saw a similar approach with Allstate, which also entered the Medigap market with aggressive introductory pricing to capture early market share. None of this is unusual from an industry standpoint. It’s a common growth strategy.

The challenge is what happens next.

When a company underprices early on, and claims begin to catch up, they often need to adjust premiums more aggressively later to bring things back in line. For beneficiaries, that can mean a plan that started out as one of the lowest-cost options may experience larger-than-average rate increases in future years.

This is exactly why it’s important to look beyond just the initial premium. In the Medigap world, how a company prices over time can matter just as much as how it prices today.

Healthcare Costs Are Rising Everywhere

It’s important to understand that Medigap rate increases are not happening in a vacuum. They’re part of a much larger trend. Healthcare costs are going up across the board, and those increases eventually show up in insurance premiums, including Medicare Supplement plans.

You can see this clearly by looking at other parts of the market.

In the Affordable Care Act (ACA) marketplace, insurers proposed average premium increases of around 7% for 2025 in many regions. That’s fairly consistent with what we’ve seen in recent years, and it reflects the same underlying pressure, higher utilization, and rising medical costs.

Employer-sponsored health insurance tells a similar story, but on a larger scale.

Today, the average cost of a family health plan is approaching $27,000 per year, with employees contributing roughly $6,800 to $7,000 annually out of pocket. Employers are also projecting another 6.5% increase in healthcare costs for 2026, which would be one of the largest jumps in over a decade.

Those numbers matter because they show this isn’t just a Medicare issue. It’s happening everywhere.

We’re also seeing pressure in the Medicare Advantage market. Several insurers have pulled back or exited certain markets after experiencing higher-than-expected claims. In some cases, those losses have been significant enough to force major strategic changes.

For example, UCare in Minnesota reported a substantial operating loss in 2024, largely driven by rising medical expenses. Other carriers, including Premera Blue Cross and Blue Cross Blue Shield of Kansas City, also exited certain Medicare Advantage markets, affecting tens of thousands of members.

Nationwide, an estimated 1.4 million Medicare Advantage enrollees were impacted by plan exits heading into 2025.

When you step back and look at the full picture, the pattern becomes clear. Rising healthcare costs are putting pressure on every segment of the system, from employer plans to ACA coverage to Medicare Advantage. Medigap is no exception.

That’s why the larger-than-normal premium increases in 2024 and 2025 shouldn’t be viewed as an isolated event. They’re part of a broader shift in healthcare costs that is working its way through the entire insurance landscape.

What This Means for Medigap Policyholders

When rising healthcare costs combine with aggressive market competition and increased utilization, the unusually large Medigap adjustments seen in 2024 and 2025 start to make more sense.

But understanding why it happened doesn’t solve the real issue most people are facing. The most common question we hear is simple:

“My premium went up. What should I do now?”

Let’s walk through the most important things to consider before making a decision.

Don’t Rush Into Medicare Advantage

When premiums jump, it’s natural to look at alternatives. Medicare Advantage plans often advertise low or even $0 monthly premiums, which can be appealing after a rate increase. But it’s important to look at the full picture.

Medicare Advantage plans typically come with:

  • Higher potential out-of-pocket costs
  • Provider networks that may limit which doctors you can see
  • Prior authorization requirements for certain services
  • Benefits that can change from year to year

By contrast, Medigap plans work with Original Medicare and allow you to:

  • See any doctor in the U.S. who accepts Medicare
  • Avoid network restrictions
  • Maintain consistent coverage year after year

That stability is a big reason many retirees choose Medigap in the first place. Before leaving Medigap entirely, it’s usually worth exploring other options within the program. Plans like Plan N or High Deductible Plan G can often reduce your premium while keeping the flexibility that Medigap provides.

In most cases, Medicare Advantage should be viewed as a fallback option, not the first move after a rate increase.

Changing Medigap Plans

One of the biggest misconceptions is that you can only change coverage during the Annual Election Period (October 15 to December 7). That’s true for Medicare Advantage and Part D plans, but it does not apply to Medigap. In most states, you can apply to change your Medigap plan at any time of year.

That flexibility creates opportunities to shop for better pricing, especially after a significant rate increase.

The Catch: Medical Underwriting

Here’s the part many people don’t realize. In most states, switching Medigap plans requires medical underwriting. This means the new insurance company will review your health history before approving your application.

Depending on your health, that can result in:

  • Approval at standard rates
  • Approval at higher than standard rates
  • Or a denial of coverage

Because of this, not everyone will be able to switch plans easily.

States With Birthday Rule Protections

Some states offer additional consumer protections that make switching much easier. These are commonly known as Medigap birthday rules.

State Rule
California Birthday rule
Delaware Birthday rule
Idaho Birthday rule
Illinois Birthday rule
Indiana Birthday rule
Kentucky Birthday rule
Louisiana Birthday rule
Maryland Birthday rule
Nevada Birthday rule
Oklahoma Birthday rule
Oregon Birthday rule
Utah Birthday rule
Virginia Birthday rule
Wyoming Birthday rule

If you live in one of these states, you typically have a 30- to 60-day window around your birthday each year to switch Medigap plans without medical underwriting.

In most cases, you can move:

  • From one carrier’s Plan G to another Plan G
  • Or from a more comprehensive plan to a less comprehensive one (for example, Plan G to Plan N)

This is a powerful advantage. It lets you shop for lower premiums without worrying about being declined for health conditions.

States With Other Expanded Switching Protections

Some states go even further than birthday-rule protections and offer broader flexibility for changing Medigap plans.

State Protection
Connecticut Year-round guaranteed issue
New York Year-round guaranteed issue
Maine Year-round switching
Missouri Anniversary rule
Massachusetts Annual guaranteed issue
Washington Expanded switching protections

These states provide stronger consumer protections, making it easier to adjust coverage when premiums increase.

In New York and Connecticut, the rules are the most flexible in the country. Medigap plans are available on a guaranteed-issue basis year-round, which means:

  • You can apply at any time
  • You cannot be denied coverage
  • Your premium cannot be increased due to health conditions

This gives beneficiaries the ability to shop for better pricing whenever they want, without worrying about underwriting.

Other states, like Maine, Missouri, Massachusetts, and Washington, offer structured opportunities to switch plans:

  • Annual switching windows (Massachusetts)
  • Anniversary rules (Missouri)
  • Expanded protections that allow certain plan changes without underwriting (Washington)

The details vary by state, but the goal is the same. These rules are designed to give beneficiaries more flexibility to move to lower-cost plans if premiums rise.

Why This Matters

On the surface, if you reside in one of these states, you have a distinct advantage. Instead of being tied to your current insurance plan due to health conditions, you can regularly review the market and modify your coverage. While this flexibility is advantageous, it also means that insurance companies are modifying their rates to account for the increased risk of adding members without inquiring about their health conditions. As a result, individuals in these states are experiencing larger annual rate increases than in states without these carve-outs.

For everyone else, switching may still be possible, but it often depends on passing medical underwriting. That’s why understanding your state’s rules is one of the most important steps when deciding what to do after a Medigap rate increase.

States Following Standard Federal Medigap Rules

The majority of states follow the standard federal Medigap guidelines for enrollment and plan switching. These states include:

State Underwriting Required
Alabama Yes
Alaska Yes
Arizona Yes
Arkansas Yes
Colorado Yes
Florida Yes
Georgia Yes
Hawaii Yes
Iowa Yes
Kansas Yes
Michigan Yes
Minnesota Yes
Mississippi Yes
Montana Yes
Nebraska Yes
New Hampshire Yes
New Jersey Yes
New Mexico Yes
North Carolina Yes
North Dakota Yes
Ohio Yes
Pennsylvania Yes
Rhode Island Yes
South Carolina Yes
South Dakota Yes
Tennessee Yes
Texas Yes
Vermont Yes
West Virginia Yes
Wisconsin Yes

How These Rules Work

In these states, Medigap enrollment is centered around a one-time window known as your Medigap Open Enrollment Period.

This period lasts for six months and begins when you are:

  • Age 65 or older
  • Enrolled in Medicare Part B

During this time, you have the strongest protections available, including:

  • Enroll in any Medigap plan offered in your state
  • Avoid medical underwriting entirely
  • Cannot be denied coverage
  • Cannot be charged more due to health conditions

This is typically the best time to enroll in a Medicare Supplement plan.

What Happens After Open Enrollment

Once that six-month window ends, the rules change. If you want to switch Medigap plans later, you will usually need to go through medical underwriting.

This means the insurance company can:

  • Review your health history
  • Ask medical questions
  • Approve or deny your application

Because of this, beneficiaries in these states are often more limited when trying to change plans later, especially if their health has changed.

Why This Matters

If you live in one of these states, your initial enrollment decision carries more weight. While you can still shop and apply for a lower premium later, approval is not guaranteed.

That’s why many beneficiaries choose to:

  • Work with an experienced agent upfront
  • Compare multiple carriers during their Open Enrollment Period
  • Consider not just price, but also long-term rate stability

In years like 2024 and 2025, when rate increases were higher than normal, these rules become especially important. They explain why some people can easily switch plans to save money, while others may need to stay with their current coverage.

Low-Cost Medigap Options Worth Considering

When premiums increase, many beneficiaries start looking for ways to lower their monthly costs without giving up the core benefits of Medigap.

Two plans consistently come up in that conversation: Plan N and High Deductible Plan G. Both options allow you to stay on Original Medicare, keep nationwide doctor access, and still reduce your premium.

Why Plan N Is Becoming More Popular

Plan N has gained significant traction in recent years, especially as Plan G premiums have continued to rise. The reason is simple. It offers coverage very similar to Plan G, but at a lower monthly cost.

Here’s a simple example:

Plan Monthly Premium
Plan G $170
Plan N $130

That’s a difference of about $40 per month, or roughly $480 per year in savings.

So what’s the tradeoff?

With Plan N, you take on a small amount of cost-sharing:

  • Up to a $20 copay for doctor visits
  • $50 copay for emergency room visits (if not admitted)
  • No coverage for Part B excess charges

In practice, these costs are often relatively minor, especially for people who don’t visit the doctor frequently.

That’s why Plan N tends to work well for:

  • People in generally good health
  • Those who want to lower their monthly premium
  • Beneficiaries who are comfortable with occasional, predictable copays

For many, the math is straightforward. Even with a few copays during the year, the premium savings can still come out ahead.

Why This Matters More Now

As Plan G premiums have increased, more beneficiaries are taking a second look at Plan N, with factors including:

  • Lower premium than Plan G
  • Strong protection compared to Medicare Advantage
  • Minimal changes to how you access care

That balance is exactly why Plan N has become one of the fastest-growing Medigap plans over the past few years.

Bottom Line

Medigap rate increases in 2024 and 2025 caught a lot of people off guard, but when you step back, the reasons are clear. Rising healthcare costs, aggressive pricing strategies from insurers, new and expanding state guaranteed issue enrollment rules, and higher claims across the board all played a role.

The key takeaway is this: You still have options.

If your premium increases, it doesn’t automatically mean you need to leave Medigap or make drastic changes. In many cases, the better approach is to:

  • Review your current plan
  • Compare pricing with other carriers
  • Consider alternatives like Plan N or High Deductible Plan G
  • Understand your state’s rules around switching

Medicare Supplement plans remain among the most stable and flexible forms of coverage available. You can see any doctor that accepts Medicare, avoid network restrictions, and keep consistent coverage year after year.

The goal isn’t just to find the lowest premium today. It’s to find a plan that balances cost, stability, and long-term value. If your rates have gone up, take it as a signal to review your options, not as a reason to panic.

A quick comparison can often confirm you’re in the right place or uncover a better fit. Either way, you’ll be making a more informed decision about your coverage moving forward.

FAQs

  • Why did Medigap rates increase so much in 2025?

    Medigap rates increased more than usual in 2024 and 2025 due to a combination of rising healthcare costs, higher claims utilization, rapid expansion in state rules for guaranteed issue enrollment windows, and aggressive pricing strategies by insurance companies. Some carriers initially priced plans low to gain market share, then adjusted premiums later when claims came in higher than expected.

  • Are large Medigap rate increases expected to continue?

    Not necessarily at the same level. While healthcare costs are still rising, the unusually large increases seen in 2024-2025 were partly a correction. Future increases may return closer to historical norms, but some variability should still be expected.

  • Should I switch Medigap plans if my premium increases?

    It depends on your situation. Many beneficiaries review other carriers or consider plans like Plan N or High Deductible Plan G to lower premiums. However, switching often requires medical underwriting, so approval is not guaranteed unless you live in a state with special protections.

  • Can I change my Medigap plan anytime?

    In most states, yes. Medigap plans can typically be changed year-round, unlike Medicare Advantage plans. However, outside of your initial enrollment period or special protections, you may need to pass medical underwriting to switch plans.

  • Is Medicare Advantage a good alternative if Medigap becomes too expensive?

    Medicare Advantage can offer lower monthly premiums, but it usually comes with provider networks, higher out-of-pocket costs, and plan changes each year. Many beneficiaries prefer to first explore lower-cost Medigap options before considering a switch.

Mark Prip

Since 2003, Mark Prip has been leading  Policy Guide, Inc., providing knowledgeable information about Medicare, life insurance, and dental coverage to clients in over forty states. With his unparalleled hands-on experience aiding countless Medicare beneficiaries in selecting an appropriate health plan, he is a prime example amongst other competitors for expertise and assistance. Mark has held his Florida Health & Life Insurance License (E051889) since 2003. View his license profile on the Florida Department of Insurance website.