Medicare Advantage vs Medigap Cost Comparison 2026

Choosing between Medicare Advantage and Medigap is one of the most consequential financial decisions you will make as a Medicare beneficiary. The two paths look similar on the surface because both promise to cover gaps in Original Medicare, but their cost structures operate on completely different logic. One bundles hospital, medical, and often drug coverage into a single plan with low or zero premiums and higher point-of-care costs. The other leaves you in Original Medicare and layers on a supplemental policy with predictable premiums and near-total coverage of cost-sharing. Understanding the medicare advantage vs medigap cost comparison is not about finding a single winner. It is about mapping your health profile, budget, and tolerance for risk onto the right structure.

This guide breaks down premiums, deductibles, copays, out-of-pocket maximums, and hidden costs so you can see the real numbers side by side. It also explains how to use resources like NewMedicare to verify plan availability in your county, and how the licensed experts at NewHealthInsurance.com can run a personalized quote in under five minutes. By the end, you will know which cost model fits your situation and what questions to ask before you enroll.

How Medicare Advantage and Medigap Differ in Cost Structure

Medicare Advantage (Part C) is a replacement for Original Medicare. Private insurers contract with the federal government to deliver Part A and Part B benefits, and most plans add prescription drug coverage, dental, vision, hearing, and fitness perks. The government pays the insurer a fixed amount per member, and the insurer manages your care through networks, prior authorizations, and care coordination. That arrangement allows many plans to charge a $0 monthly premium beyond the Part B premium you already pay. The trade-off is that you pay more when you actually use care through copays, coinsurance, and annual out-of-pocket maximums that can reach $8,850 in-network in 2026.

Medigap, also called Medicare Supplement, works in the opposite direction. You keep Original Medicare as your primary coverage and buy a standardized policy from a private insurer to pay most or all of the cost-sharing that Medicare leaves behind. Medigap plans are labeled A through N in most states, and each letter offers identical benefits regardless of which carrier sells it. That standardization makes comparison shopping straightforward: the only real variables are price, customer service, and rate stability. In exchange for higher monthly premiums, you get low or no deductibles, predictable copays, and the freedom to see any provider in the country who accepts Medicare.

The core difference comes down to when you pay. Medicare Advantage front-loads savings through low premiums and back-loads costs through usage-based expenses. Medigap front-loads costs through premiums and back-loads savings through minimal point-of-care expenses. If you are healthy and rarely see doctors, Advantage often wins on annual spending. If you have chronic conditions, see specialists, or travel frequently, Medigap frequently wins despite the higher premium.

Premiums: The Most Visible Cost Difference

Premiums are the first number most people compare, and the gap can be striking. In 2026, the average Medicare Advantage plan premium is projected to be around $14 to $17 per month, with many plans in competitive counties offering $0 premiums. Some plans even return part of your Part B premium through a giveback benefit. However, the national average masks wide variation. In rural counties with fewer insurers, Advantage premiums can climb to $50 or more per month, and the $0 plans may have narrow networks or limited extra benefits.

Medigap premiums are substantially higher and vary dramatically by age, gender, tobacco use, and location. A 65-year-old enrolling in Plan G, the most popular modern option, might pay $110 to $160 per month in a low-cost state like Florida or Texas, and $200 or more per month in states like New York or Connecticut. Plan N, a slightly leaner option, typically runs $20 to $40 less per month. These premiums rise over time due to medical inflation and, in most states, age-rated pricing that increases your rate as you get older.

Here is a simplified premium comparison for a 65-year-old in average health in a mid-cost market:

• Medicare Advantage: $0 to $50 per month, plus the standard Part B premium of $185.00 in 2026.
• Medigap Plan G: $120 to $180 per month, plus the Part B premium.
• Medigap Plan N: $95 to $140 per month, plus the Part B premium.
• Medicare Part D (if not bundled): $0 to $80 per month for stand-alone drug coverage.

Notice that Medigap enrollees still pay the Part B premium, and they usually need a stand-alone Part D drug plan because Medigap does not cover prescriptions. That means the true premium gap between a $0 Advantage plan and Plan G can exceed $200 per month, or roughly $2,400 per year. That difference is the single largest factor in the medicare advantage vs medigap cost comparison, and it is the reason many beneficiaries initially choose Advantage.

For a deeper look at how these plans stack up across categories, including enrollment rules and network design, see this Medicare Advantage vs Medigap comparison guide.

Deductibles, Copays, and Out-of-Pocket Maximums

Once you move past premiums, the cost picture shifts. Medicare Advantage plans typically have an in-network deductible for hospital stays (often $0 to $500) and a separate deductible for prescription drugs (capped at $615 in 2026 under the Part D redesign). After the deductible, you pay copays for doctor visits, specialist visits, urgent care, and hospital admissions. These copays vary widely by plan. A primary care visit might cost $0 to $20, a specialist $20 to $50, and a hospital stay $250 to $500 per day for the first few days.

The critical safety net in Advantage is the in-network maximum out-of-pocket limit, which is capped at $8,850 in 2026. Once you hit that limit, the plan covers 100 percent of in-network Medicare-covered services for the rest of the year. However, out-of-network care in an HMO typically is not covered at all, and in a PPO you face a separate, higher out-of-pocket maximum (often $12,000 or more). That distinction matters for snowbirds, frequent travelers, and anyone who sees specialists outside the plan network.

Medigap works differently. Plan G, for example, covers the Part A hospital deductible ($1,676 in 2026), the Part B deductible ($283 in 2026), and all coinsurance and copays that Original Medicare would otherwise leave to you. After you pay the Part B deductible, your out-of-pocket costs for Medicare-covered services are essentially zero. Plan N has a slightly different structure: it covers the Part A deductible and coinsurance but leaves you with copays of up to $20 for some office visits and up to $50 for emergency room visits.

To put this in perspective, consider two beneficiaries with the same chronic condition requiring monthly specialist visits and one hospital stay:

1. Medicare Advantage enrollee: Pays $0 premium, $35 specialist copay x 12 visits ($420), $400 hospital copay, and $300 in drug copays. Total annual out-of-pocket: roughly $1,120 plus the Part B premium.
2. Medigap Plan G enrollee: Pays $150 monthly premium ($1,800), the $283 Part B deductible, and $0 for the hospital stay. Total annual out-of-pocket: roughly $2,083 plus the Part B premium.

In this scenario, Advantage costs less. But flip the scenario to a cancer diagnosis with chemotherapy, multiple hospitalizations, and out-of-network specialist care, and the Advantage enrollee can hit the $8,850 maximum while the Medigap enrollee pays only the Part B deductible. The breakeven point often falls somewhere between $2,000 and $4,000 in annual healthcare spending.

Prescription Drug Costs Under Each Option

Prescription drugs are a major wildcard in any cost comparison because drug needs change unpredictably. Most Medicare Advantage plans include Part D drug coverage, which means you pay the plan's drug deductible and copays within the same out-of-pocket maximum as your medical care. That integration can be a significant advantage for people with high drug costs, because medical and drug spending count toward the same cap.

Medigap does not cover prescriptions. If you choose Medigap, you must enroll in a stand-alone Part D plan, which has its own premium, deductible (capped at $615 in 2026), and copays. Stand-alone Part D plans also have their own out-of-pocket maximum for drugs, which in 2026 is $2,100. That means a Medigap enrollee effectively has two separate out-of-pocket caps: one for medical care (which Medigap largely eliminates) and one for drugs. An Advantage enrollee has one combined cap.

For beneficiaries with modest drug needs, the difference is small. For those taking specialty medications or multiple brand-name drugs, the combined cap in Advantage can be a real financial advantage. However, Advantage plans often use prior authorization and step therapy to manage drug costs, which can delay or restrict access to certain medications. Medigap enrollees with stand-alone Part D face similar utilization management, but they have more flexibility to switch drug plans annually without changing their medical coverage.

Hidden and Long-Term Costs to Consider

The medicare advantage vs medigap cost comparison is incomplete without factoring in costs that do not appear on a plan summary. Medicare Advantage plans can change their provider networks, formularies, and copays every year. A plan that costs you $500 this year could cost $3,000 next year if your specialist leaves the network or your drug moves to a higher tier. You can switch Advantage plans annually during Open Enrollment, but if you develop a serious condition, your new plan may not cover your doctors.

Medigap has its own long-term risk: premium increases. Because Medigap plans are age-rated in most states, your premium will rise as you get older. Insurers can also raise rates for an entire class of policyholders due to medical inflation or claims experience. Over 20 years, a $150 premium can easily become $350 or more. However, once you are enrolled in Medigap, you can keep the plan as long as you pay the premium, and you cannot be dropped for getting sick.

Another hidden cost is the Medigap underwriting trap. With limited exceptions, you can only buy a Medigap policy without medical underwriting during your six-month Medigap Open Enrollment Period, which starts when you are 65 and enrolled in Part B. If you choose Medicare Advantage first and later want to switch to Medigap, you may be denied coverage or charged a higher premium based on your health history. This is why many financial advisors recommend treating the initial Medigap decision as a one-way door. If you can afford the premium now and expect to want Medigap later, enrolling early preserves your guaranteed acceptance.

Which Option Costs Less for Your Situation

There is no universal answer, but patterns emerge when you match cost structures to health profiles. Medicare Advantage tends to cost less for beneficiaries who are relatively healthy, take few prescriptions, do not travel extensively, and are comfortable with network restrictions. The low premium and integrated drug coverage can save $2,000 or more per year compared to Medigap, and the out-of-pocket maximum protects you from catastrophic costs.

Medigap tends to cost less overall for beneficiaries with chronic conditions, frequent specialist needs, or a strong preference for provider flexibility. The higher premium is predictable, and the near-zero cost-sharing means you never face a surprise bill after a hospital stay or specialist visit. If you travel between states or spend part of the year abroad (though Medigap coverage abroad is limited), Medigap's nationwide provider access is a major advantage.

To decide, run a simple three-step estimate:

1. Add up your expected annual healthcare costs: doctor visits, specialists, hospital stays, and prescriptions.
2. Compare that total against the premium difference between your best Advantage plan and your best Medigap plan.
3. Ask yourself how you would handle a worst-case year, such as a cancer diagnosis or major surgery, under each structure.

If the premium difference is larger than your expected out-of-pocket costs, Advantage may save you money. If you would struggle to pay an $8,850 out-of-pocket maximum or you value unrestricted provider access, Medigap is likely worth the premium. You can also use NewHealthInsurance.com to compare Medicare plan options side by side and speak with a licensed agent who can run quotes for both paths in your county.

Frequently Asked Questions

Can I switch from Medicare Advantage to Medigap later?

Yes, but you may face medical underwriting. In most states, you can only buy Medigap without answering health questions during your initial Medigap Open Enrollment Period. After that, insurers can deny coverage or charge more based on your health. Some states, such as New York and Connecticut, offer year-round guaranteed acceptance, but most do not.

Does Medicare Advantage really cost $0 per month?

Many plans advertise $0 premiums, but you still pay the standard Part B premium ($185.00 in 2026). You also pay copays and coinsurance when you use care, and those costs can add up quickly. A $0 premium does not mean $0 healthcare.

Is Medigap worth the higher premium?

For people with chronic conditions, frequent doctor visits, or a desire for nationwide provider access, Medigap is often worth the cost. The predictable premiums and near-zero cost-sharing provide financial peace of mind that many beneficiaries value more than the monthly savings of Advantage.

Do Medicare Advantage plans cover prescriptions?

Most do. Medicare Advantage Prescription Drug plans (MA-PD) bundle medical and drug coverage into one plan with a single out-of-pocket maximum. Medigap does not cover drugs, so you need a stand-alone Part D plan if you choose Medigap.

Whichever path you choose, the key is to run the numbers for your own health profile and budget rather than relying on averages. Call NewHealthInsurance.com at (833) 864-8035 to speak with a licensed agent who can compare Medicare Advantage and Medigap quotes in your area, or start an online quote in under five minutes. The right plan is the one that keeps your total costs manageable while giving you access to the care you need.