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A Guide To Medicare Supplement Plans for 2026

If you’re comparing Medicare Supplement Plans for 2026, this guide ranks the top options and shows how to pick the right fit.

We’ll break down the pros and cons, typical costs, and who each plan suits best—plus key enrollment rules that can save you money.

Top 5 Medicare Supplement Plans for 2026 (Ranked)

In most states, Medicare Supplement (Medigap) plans are standardized by letter, so Plan G benefits are the same no matter which insurer you choose. We ranked the top plans based on breadth of coverage, out-of-pocket protection, availability, price stability, and simplicity. For a quick benefits snapshot of each lettered plan, see Medicare’s official Medigap plan comparison chart.

Important eligibility note: Plans C and F (which cover the Part B deductible) aren’t available to people who became newly eligible for Medicare on or after January 1, 2020. If you were eligible before then—even if you didn’t enroll—you may still be able to buy Plan F in 2026 depending on availability in your state. We include Plan F for those who qualify.

#1: Plan G — Best overall for broad coverage

Why it ranks #1: For most beneficiaries, Plan G delivers the most comprehensive protection available to new enrollees: it covers all Medicare cost gaps except the annual Part B deductible. Once you meet that deductible, covered services are typically paid 100% (subject to Medicare rules).

  • Pros: Excellent hospital and outpatient coverage; covers skilled nursing facility coinsurance; includes Part A deductible; covers Part B excess charges; includes limited foreign travel emergency benefits (plan limits apply).
  • Cons: Premiums are usually among the highest (second only to F in many areas); you still pay the annual Part B deductible out of pocket.
  • Best for: People who want predictable costs and minimal billing surprises after the Part B deductible.

#2: Plan N — Best for savvy savers who don’t mind small copays

Why it ranks #2: Plan N typically has lower premiums than G by trading a bit of cost-sharing: up to a small copay for some office visits and ER visits (waived if admitted). It does not cover Part B excess charges, which some states restrict anyway.

  • Pros: Often meaningful premium savings vs. G; no copay for many preventive services; strong inpatient benefits.
  • Cons: Office/ER copays; no coverage for Part B excess charges (check whether your state limits these or ask your doctors if they accept Medicare assignment—learn what excess charges are here).
  • Best for: People comfortable with small, occasional copays who want a lower premium but strong protection for big expenses.

#3: High-Deductible Plan G — Best for low premium, higher risk tolerance

Why it ranks #3: High-deductible G offers the same benefits as standard Plan G after you meet a high annual deductible (set by Medicare and adjusted periodically). Premiums are usually the lowest among the popular choices.

  • Pros: Significantly lower monthly premium; protection against catastrophic costs after the deductible is met.
  • Cons: You’re responsible for Medicare cost-sharing until the annual deductible is satisfied; requires budgeting for a larger potential out-of-pocket.
  • Best for: Healthier enrollees, or those with strong savings who prefer a low-premium strategy and can handle higher occasional costs.

#4: Plan F (if eligible) — Most comprehensive, but closed to new enrollees

Why it ranks #4: Plan F covers virtually all Medicare gaps, including the Part B deductible, making it the most comprehensive Medigap plan. However, it’s only available if you were Medicare-eligible before 2020, and premiums can be high.

  • Pros: No Part A or B cost-sharing; most predictable out-of-pocket spending; includes Part B excess charges coverage and foreign travel emergency (plan limits apply).
  • Cons: Not available to people first eligible for Medicare in 2020 or later; often the highest premiums; closed risk pool can contribute to steeper rate increases over time in some areas.
  • Best for: Those grandfathered into eligibility who value maximum simplicity and don’t mind paying more for it.

#5: Plan D — Solid middle ground without office copays

Why it ranks #5: Plan D is similar to Plan G but does not cover Part B excess charges and, like G, doesn’t cover the Part B deductible. It typically has premiums between Plan N and Plan G and comes without N’s office-visit copays.

  • Pros: Comprehensive core benefits without office copays; often priced lower than Plan G; good fit in states where excess charges are limited or rare.
  • Cons: No Part B excess charges coverage; can be less widely offered than G or N in some markets.
  • Best for: People who prefer no office copays and whose doctors accept Medicare assignment (or who live in states that restrict excess charges).

How to choose the right plan for you

1) Start with your health and provider habits

  • Frequent care: If you see specialists often or anticipate procedures, Plan G’s predictability may be worth the higher premium.
  • Occasional care: If you mainly use preventive services and a few checkups, Plan N or High-Deductible G can cut premiums.
  • Doctor billing: Ask if your providers accept Medicare assignment to avoid Part B excess charges (important for N and D).

2) Compare total annual cost, not just the premium

  • Estimate: annual premiums + expected copays/coinsurance + Part B deductible.
  • Check how insurers price policies: community-rated, issue-age, or attained-age. Learn the differences on Medicare’s page about how Medigap is priced.
  • Review an insurer’s rate history and household discounts.

3) Verify plan availability and shop smart

  • Not all insurers offer every plan letter in every ZIP code. Use Medicare’s tool to find Medigap policies and prices in your area.
  • Benefits are standardized, but service, pricing, and rate increases vary by company.
  • In Massachusetts, Minnesota, and Wisconsin, plans are standardized differently—check your state’s specific options on the Medigap comparison chart.

Timing matters: enrollment and underwriting

Your best time to buy Medigap is your six-month Medigap Open Enrollment Period, which starts the month your Part B is active. During that window, insurers can’t use medical underwriting to deny you or charge more for preexisting conditions. Learn more about timing on Medicare’s Medigap enrollment page.

You may also have guaranteed issue rights (for example, if you lose certain other coverage, or your Medicare Advantage plan leaves your area). These rights let you buy specific Medigap plans without underwriting for a limited time. See the full list of situations and timelines here.

Outside of open enrollment and guaranteed-issue windows, most states allow insurers to review your health history and potentially deny coverage or charge more. A few states have special rules (e.g., annual “birthday rules” that allow switching plans of equal or lesser benefits without underwriting). Check your state’s Department of Insurance or speak with your local State Health Insurance Assistance Program (SHIP) for free, unbiased help.

What Medigap does—and doesn’t—cover

  • What it covers: Medigap helps pay Medicare Part A and B deductibles, coinsurance, and copays, depending on the plan letter you choose. It works nationwide with any provider who takes Medicare—no networks.
  • What it doesn’t cover: Prescription drugs (you’ll need a separate Part D plan), routine dental/vision/hearing, long-term custodial care, and most non-emergency care outside the U.S. (some plans include limited foreign travel emergency benefits).
  • New to Medigap? Start with Medicare’s overview of what Medigap is and how it works.

Quick decision checklist

  • Pick your target: G for maximum predictability; N for premium savings with modest copays; High-Deductible G for ultra-low premiums; F if grandfathered; D if you want no office copays and don’t need excess-charge coverage.
  • Confirm your doctors accept Medicare assignment if considering Plan N or D (no excess-charge coverage).
  • Compare total annual costs across at least three insurers.
  • Enroll during your Medigap Open Enrollment or a guaranteed-issue window if possible.
  • Recheck rates each year; you can apply to switch, but underwriting may apply in many states.

Bottom line

Plan G is the top pick for most people new to Medicare in 2026. Plan N and High-Deductible G can meaningfully cut premiums if you’re comfortable with a bit more cost-sharing. If you’re eligible, Plan F remains the most comprehensive but often pricey. And Plan D is a solid middle-ground choice where excess charges are rare. Take a few minutes to compare quotes, verify your providers’ billing practices, and enroll during the best window for you. For deeper detail, download the official CMS guide to choosing a Medigap policy here.

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