Medicare Supplement Plans Comparison Guide 2026

12 min read

TL;DR:Plan G is the most popular Medigap option for new 2026 enrollees, covering everything except the $283 Part B deductible at roughly $100–$200/month.

  • Plan N saves $30–$60/month but adds copays and skips Part B excess charge coverage – best for generally healthy enrollees with fewer than ~24 annual doctor visits.
  • Enroll during your 6-month Open Enrollment Period (starting when you turn 65 and enroll in Part B) to lock in guaranteed-issue rights with no medical underwriting.

What Are Medicare Supplement Plans and Who Needs One?

Medicare supplement plans – also called Medigap – are standardized private insurance policies that fill the cost gaps Original Medicare leaves behind. If you're approaching 65 or newly Medicare-eligible, this Medicare supplement plans comparison guide 2026 gives you everything you need to choose confidently.

Based on our analysis of Medicare plan data, verified claim sources, and community discussions collected in June 2026, Original Medicare (Parts A and B) leaves you exposed to significant out-of-pocket costs. confirms that after your Part B deductible, you pay 20% of the Medicare-approved amount for most doctor services – with no annual cap. A single serious illness could cost you tens of thousands of dollars.

The Part A hospital deductible alone is $1,676 per benefit period in 2026, and it can hit more than once per year if you have multiple hospitalizations separated by 60 days.

Here's what makes Medigap valuable: Mutual of Omaha confirms there are 10 standardized Medicare Supplement Insurance plans in 47 states. "Standardized" means every insurer selling Plan G must offer identical benefits – only the premium differs. That makes comparison shopping straightforward.

You're eligible if you're turning 65 and enrolling in Part B, or if you qualify for Medicare due to disability, End-Stage Renal Disease, or ALS, per Medicare's eligibility guidelines. Note that federal law doesn't require insurers to sell Medigap to beneficiaries under 65, though some states do.

If you're weighing whether supplemental coverage is worth the cost at all, that's a separate but important question worth exploring before committing to a plan.

Key Takeaway: Original Medicare's uncapped 20% Part B coinsurance and $1,676 Part A deductible per benefit period are the core financial gaps Medigap fills. Standardization means Plan G benefits are identical across all insurers – only premiums vary.

2026 Medicare Supplement Plans Comparison Chart

According to Medicare.gov's official Medigap benefits page, here's how all 10 standardized plans stack up for 2026. Plans G and N are bolded as the most popular choices for new enrollees.

Benefit A B C* D F* G HD-G K L N
Part A coinsurance (up to 365 days)
Part B coinsurance (20%) 50% 75% ✓†
Part A deductible ($1,676/benefit period) 50% 75%
Part B deductible ($283/year)
Part B excess charges (up to 15%)
Skilled nursing coinsurance 50% 75%
Foreign travel emergency (80%)
Out-of-pocket limit $8,000 $4,000

†Plan N pays Part B coinsurance except copays up to $20 for office visits and $50 for ER visits.

Critical eligibility note: is explicit: "Plan C & Plan F aren't available if you turned 65 on or after January 1, 2020." If you became Medicare-eligible after that date, Plans C and F are off the table entirely.

UHC's plan comparison confirms that Plans K and L pay 100% of covered services for the rest of the calendar year once you meet your out-of-pocket yearly limit – $8,000 for Plan K and $4,000 for Plan L in 2026.

The High-Deductible Plan G requires you to pay all Medicare cost-sharing up to $2,950 in 2026 before coverage kicks in, per Medicare's compare-plan-benefits page.

Key Takeaway: For new 2026 enrollees, Plans G and N are the practical choices. Plans C and F are unavailable. High-Deductible G and Plans K/L serve specific budget profiles. The $283 Part B deductible is the only gap Plan G leaves uncovered.

According to medicaresupplement.com's 2026 cost analysis, 39% of Medigap beneficiaries hold Plan G, 36% hold Plan F (mostly pre-2020 enrollees), and 10% hold Plan N. That means Plans G and N together dominate new enrollment decisions.

chooseyourmedigap.com cites industry research from Gen Re showing more than 80% of all new Medigap enrollments are in Plan G or Plan N. The math makes sense once you understand what each plan actually does.

Plan G covers everything Original Medicare doesn't – except the $283 annual Part B deductible. As Healthline's supplement comparison explains, Plan G covers the Part A deductible, Part A coinsurance, and skilled nursing facility coinsurance. Typical premiums for a 65-year-old non-smoker run $100–$200/month depending on state and insurer.

Think of it this way: one hospitalization triggers the $1,676 Part A deductible. Plan G covers that entirely. At $150/month in premiums ($1,800/year), a single hospital stay nearly pays for your entire year of coverage.

Plan N offers lower premiums – typically $30–$60/month less than Plan G, per thebig65.com. The trade-off: UHC confirms Plan N charges copays up to $20 for office visits and $50 for ER visits, and it doesn't cover Part B excess charges.

Plans K and L are share-cost plans with out-of-pocket limits. medigapseminars.org confirms Plan K covers 50% of most cost-sharing with an $8,000 annual limit; Plan L covers 75% with a $4,000 limit. These suit budget-conscious buyers who want a ceiling on worst-case costs.

High-Deductible Plan G has a $2,950 deductible in 2026 before coverage begins. At premiums as low as $45/month ($540/year), your maximum annual exposure is roughly $3,490 – versus standard Plan G's ~$1,800 in premiums with near-zero cost-sharing after that.

Key Takeaway: Plan G dominates new enrollment at 39% of Medigap holders. Plan N is the runner-up for healthy enrollees. High-Deductible G suits those comfortable absorbing up to $2,950 in exchange for premiums as low as $45/month.

How Do Plan G and Plan N Costs Actually Compare?

Plan G costs more monthly but eliminates nearly all cost-sharing. Plan N makes financial sense if you visit doctors fewer than roughly 24 times per year. Here's the transparent math.

Factor Plan G Plan N
Estimated monthly premium (age 65) $150/month $110/month
Annual premium cost $1,800 $1,320
Office visit copay $0 Up to $20
ER visit copay $0 Up to $50
Part B excess charges Covered Not covered
Annual premium savings vs. Plan G $480
Break-even office visits 24 visits

The calculation is straightforward: Plan G costs $480 more per year than Plan N ($150 vs. $110/month × 12). At $20 per office visit copay under Plan N, you'd need 24 visits to spend that $480 difference. Fewer than 24 visits? Plan N saves you money. More than 24? Plan G comes out ahead.

commonsllc.com's plan comparison highlights the Part B excess charge risk: non-participating providers can legally add up to 15% above Medicare's approved amount. Plan N holders absorb that cost; Plan G holders don't.

Who Plan G suits best:

  • People managing chronic conditions with frequent specialist visits
  • Anyone who wants predictable, near-zero cost-sharing
  • Enrollees in states where many providers don't accept Medicare assignment

Who Plan N suits best:

  • Generally healthy enrollees with fewer than ~24 annual doctor visits
  • Those prioritizing lower fixed monthly costs
  • Enrollees in states that ban Part B excess charges (limiting Plan N's main risk)

The same logic applies when you're thinking about choosing the right deductible amount for any health coverage – lower premiums mean higher potential out-of-pocket exposure, and the break-even math tells you which side of that trade-off makes sense for your situation.

Key Takeaway: The Plan G vs. Plan N break-even is 24 office visits at a $480 annual premium gap and $20 copays. Run your own numbers: multiply your expected annual visits by $20, then compare to your premium savings under Plan N.

How Much Do Medicare Supplement Premiums Cost in 2026?

Premiums range from roughly $45 to $350/month depending on plan letter, age, state, tobacco use, and – critically – how the insurer rates its policies.

medicaresupplement.com puts the average monthly cost for a Medicare Supplement plan at $149.50 in 2026 across all plan types.

The three rating methods – and why they matter long-term:

Medicare.gov's Medigap costs page defines them clearly:

  • Community-rated: Same premium for everyone regardless of age. A 65-year-old and a 78-year-old pay the same amount.
  • Issue-age-rated: Premium is based on your age when you buy. It won't increase just because you get older (though it may rise with inflation).
  • Attained-age-rated: Premium increases as you age. Often the lowest initial premium – but the highest long-term cost.

This distinction is consequential. A community-rated Plan G at $150/month stays $150 at age 75. An attained-age-rated Plan G starting at $100/month at 65 may reach $220/month by 75 – that's $840/year more, despite the lower initial premium.

Sample Plan G premium ranges by age and state (2026 estimates):

Age Lower-cost state (e.g., Oklahoma) Higher-cost state (e.g., New York)
65 ~$100–$120/month ~$230–$270/month
70 ~$130–$155/month ~$280–$320/month
75 ~$165–$195/month ~$340–$380/month

Tobacco users typically pay 10–20% more. And if you live in Massachusetts, Minnesota, or Wisconsin, the standard 10-plan framework doesn't apply – those states use their own standardized structures.

The practical takeaway: compare at least 3 insurers for the same plan letter. themedicarecoach.com confirms that Plan G from one company provides identical medical benefits as Plan G from another – only premiums differ.

Key Takeaway: Rating method is the most overlooked long-term cost factor. An attained-age-rated plan starting $50/month cheaper at 65 can cost $840+/year more by 75. Always ask which rating method an insurer uses before enrolling.

Step-by-Step: How to Choose the Right Medigap Plan

Choosing a Medigap plan is a structured decision, not a guessing game. Follow these six steps.

Step 1: Confirm your enrollment window. themedicarecoach.com confirms you get a one-time 6-month Medigap Open Enrollment Period when you first enroll in Part B at 65 or older – with guaranteed issue rights and no medical underwriting. commonsllc.com calls it "a one-time, six-month window that kicks off the month you turn 65 and are signed up for Medicare Part B."

⚠️ Critical callout: Missing this window means insurers in most states can charge more, impose waiting periods, or deny coverage based on your health history. Don't let it lapse.

Step 2: Estimate your annual healthcare use. Count your expected doctor visits, specialist appointments, and hospitalizations. If you have chronic conditions requiring frequent care, Plan G's predictability is worth the premium. If you're generally healthy, Plan N's lower cost may make more sense.

Step 3: Run the break-even math. Use the Plan G vs. N framework from the previous section. Multiply your expected annual office visits by $20 (Plan N's copay). If that number exceeds your annual premium savings under Plan N, choose Plan G.

Step 4: Choose your rating method. Prefer community-rated or issue-age-rated plans for predictable long-term costs. Attained-age-rated plans look attractive at 65 but compound significantly over time.

Step 5: Compare at least 3 insurer quotes. Benefits are identical for the same plan letter – but premiums vary significantly by carrier. Use the Medicare.gov plan finder or work with a licensed broker. Understanding the difference between working with a licensed broker vs. comparing plans yourself can meaningfully affect both the quotes you receive and the guidance you get through the process.

When you're comparing quotes, resources like Health Coverage like a BOSS! can help you navigate plan options across insurers – particularly useful if you want personalized guidance on finding a plan that fits both your health needs and your budget.

Step 6: Verify insurer financial strength. Look up your insurer's AM Best rating (A- or better recommended) and check the NAIC complaint index – a score above 1.0 means more complaints than average for the company's size.

Key Takeaway: Your 6-month Open Enrollment Period is your most valuable asset in Medigap shopping. Use it to lock in guaranteed-issue rights, then compare at least 3 quotes for the same plan letter before deciding.

Ready to Compare Plans? Start Here

Finding the right Medigap plan is easier with the right support. If you want personalized help comparing options across multiple insurers – rather than navigating carrier websites one by one – Health Coverage like a BOSS! specializes in custom-fit health insurance plans for individuals, families, and small business owners.

What to look for in a Medigap resource or broker:

  • Licensed in your state with access to multiple carriers
  • Explains rating methods (community vs. attained-age) upfront
  • Provides quotes for the same plan letter across at least 3 insurers
  • Walks you through enrollment timing so you don't miss your Open Enrollment window
  • No pressure to choose a specific carrier – guidance should match your health profile, not a commission structure

Whether you use an online tool, a licensed broker, or a resource like Health Coverage like a BOSS!, the goal is the same: get comparable quotes, understand the rating method, and enroll during your guaranteed-issue window.

Frequently Asked Questions About Medicare Supplement Plans

Direct Answer: Plan G is the most popular Medigap plan for new 2026 enrollees, holding 39% of Medigap beneficiaries according to medicaresupplement.com.

Plan G covers all Medicare cost-sharing gaps except the $283 annual Part B deductible. chooseyourmedigap.com cites industry research showing over 80% of new Medigap enrollments go to Plan G or Plan N combined. Plan F held 36% of total Medigap enrollment, but it's unavailable to anyone who became Medicare-eligible on or after January 1, 2020.

Can I be denied a Medicare supplement plan because of health conditions?

Direct Answer: During your 6-month Open Enrollment Period, no – insurers cannot deny you or charge more based on health. Outside that window, most states allow medical underwriting.

commonsllc.com confirms the Open Enrollment Period is a one-time window. Miss it, and insurers in most states can apply underwriting, impose waiting periods, or deny coverage. A few states – including New York and Connecticut – offer year-round guaranteed issue. Some states also have "birthday rules" allowing annual plan-switching without underwriting.

How much does Medicare Plan G cost per month in 2026?

Direct Answer: Plan G premiums for a 65-year-old non-smoker typically range from $100 to $200/month depending on state, insurer, and rating method.

medicaresupplement.com puts the average monthly Medigap cost at $149.50 across all plans in 2026. Premiums rise with age – a 75-year-old in a high-cost state may pay $340–$380/month for the same Plan G. Tobacco users pay 10–20% more. Always compare at least 3 insurer quotes, since benefits are identical but pricing varies significantly. For strategies to manage your overall healthcare costs, exploring ways to reduce your healthcare costs legally is worth reviewing alongside your plan selection.

What is the difference between Medicare Supplement and Medicare Advantage?

Direct Answer: Medicare Supplement (Medigap) works alongside Original Medicare; Medicare Advantage replaces it. You cannot have both simultaneously.

themedicarecoach.com explains that Medicare Advantage bundles Parts A, B, and usually D into a private plan – often with a $0 premium but network restrictions and an annual out-of-pocket maximum. chooseyourmedigap.com notes that with Original Medicare plus a supplement, over 95% of U.S. doctors and hospitals are available to you. Medicare Advantage plans restrict you to a network.

When is the best time to enroll in a Medicare supplement plan?

Direct Answer: The best time is during your 6-month Medigap Open Enrollment Period, which begins the month you turn 65 and enroll in Medicare Part B.

thebig65.com confirms this window provides guaranteed-issue rights – no medical underwriting, no denial based on health history. [S8-C2] from themedicarecoach.com describes it as "a one-time 6-month Medigap Open Enrollment Period in which you can generally buy a Medigap policy sold in your state without medical underwriting." Missing it is the most costly Medigap mistake you can make.

Do Medicare supplement plans cover prescription drugs?

Direct Answer: No. Medigap plans do not cover prescription drugs. You need a separate Medicare Part D plan for drug coverage.

Medicare's official Medigap page is clear on this. Medigap policies sold after 2006 are prohibited by federal law from including drug coverage. If you enroll in a Medigap plan without also enrolling in Part D during your initial enrollment window, you may face late enrollment penalties when you do sign up for drug coverage later.

Is a Medicare supplement plan worth the cost?

Direct Answer: For most Medicare beneficiaries, yes – particularly those with chronic conditions or frequent healthcare needs. The math depends on your health use and risk tolerance.

At $149.50/month average (medicaresupplement.com), Plan G costs roughly $1,794/year. One hospitalization triggers a $1,676 Part A deductible that Plan G covers entirely – nearly offsetting a full year of premiums. Without Medigap, Original Medicare's uncapped 20% Part B coinsurance creates unlimited exposure. For a full cost-benefit analysis of supplemental plans, reviewing a detailed breakdown of whether supplemental health insurance is worth the cost can help you decide.

Conclusion

This Medicare supplement plans comparison guide 2026 gives you the framework to make a confident decision: understand what Original Medicare leaves uncovered, compare the 10 standardized plan letters, run the Plan G vs. Plan N break-even math for your situation, and enroll during your guaranteed-issue Open Enrollment Period.

The most important action you can take right now is confirming your enrollment window. If you're within six months of turning 65 and enrolling in Part B, you have guaranteed-issue rights that disappear after that window closes.

Compare at least three insurer quotes for the same plan letter, ask about the rating method, and verify AM Best ratings before you commit. Resources like Health Coverage like a BOSS! can help you navigate those comparisons with personalized guidance. The right plan is the one that matches your health profile, budget, and long-term cost expectations – not just the lowest premium today.