Every new year brings updated deductibles, adjusted premiums, and shifting market dynamics to the Medigap landscape. If you are enrolling in Medicare or reviewing your existing coverage, understanding Medicare Supplement plans 2026 ensures you are working with current numbers rather than outdated information. The Part B deductible, Part A hospital costs, and carrier pricing have all been updated for 2026, and those changes directly affect what you pay out of pocket. The figures in this guide reflect the 2026 amounts, but Medicare cost figures are updated annually and can be revised — always confirm the latest numbers at Medicare.gov before making decisions.
Key Medicare Numbers for 2026
The Centers for Medicare & Medicaid Services (CMS) sets the standard amounts that define how much Original Medicare covers and how much you owe. For 2026, the critical figures include the Part B deductible at $283, the standard Part B monthly premium at $202.90 for most beneficiaries (higher for higher incomes under IRMAA), the Part A hospital deductible at $1,736 per benefit period, Part A coinsurance of $434 per day for days 61 through 90, lifetime reserve day coinsurance of $868 per day, and skilled nursing facility coinsurance of $217 per day for days 21 through 100. These are 2026 amounts; verify the current figures at Medicare.gov, since they change each year.
These numbers represent the gaps that Medicare Supplement plans 2026 are designed to fill. Without a Medigap policy, a long hospital stay followed by weeks in a skilled nursing facility could leave you with many thousands of dollars in out-of-pocket costs — and Original Medicare has no annual out-of-pocket maximum. A comprehensive Medigap plan such as Plan G reduces that exposure to little more than the Part B deductible for Medicare-approved services.
Plan F and Plan C Are Closed to New Enrollees
This is the single most important rule to understand in 2026. Medigap Plan F and Plan C are closed to anyone who became eligible for Medicare on or after January 1, 2020. These were the only two plans that covered the Part B deductible, and federal law (the MACRA legislation) barred new sales of first-dollar Part B coverage to newly eligible beneficiaries. If you became eligible before that date, you can generally still buy or keep Plan F or Plan C. Everyone else should look to Plan G and Plan N, which are the leading comprehensive alternatives. If a broker offers you Plan F and you turned 65 in 2020 or later, that is a red flag — you are not eligible for it.
Most Popular Medigap Plans in 2026
Plan G continues to lead new Medigap enrollments in 2026. It covers everything except the Part B deductible, making your maximum annual out-of-pocket cost for Medicare-approved services just the $283 Part B deductible. Premiums for a 65-year-old typically range from roughly $120 to $250 per month, varying by state, carrier, age, and rating method — treat these as ballpark figures and get real quotes for your ZIP code.
There is also a high-deductible Plan G (HDG). It offers the same comprehensive benefits as standard Plan G, but you pay a much lower monthly premium in exchange for meeting a high annual deductible (set by CMS and adjusted yearly — verify the current amount) before the plan begins paying. High-deductible Plan G can be attractive for healthier beneficiaries who want catastrophic-style protection at a lower premium.
Plan N holds a strong position among new enrollees. It trades slightly less coverage — small office-visit copays (up to $20) and ER copays (up to $50 if you are not admitted) — for premiums that typically run lower than Plan G. Plan N also does not cover Part B excess charges, which matters only if your doctors bill above Medicare’s approved rates (something more common in a few states and prohibited entirely in some).
Plan F remains available only to those who became Medicare-eligible before January 1, 2020. It covers every gap without exception, but premiums tend to climb faster than average because the closed enrollment pool ages over time. Many long-time Plan F holders are evaluating whether switching to Plan G makes financial sense.
How Medigap Differs From Medicare Advantage
A common and costly point of confusion: Medicare Supplement (Medigap) is not the same as Medicare Advantage (Part C). Medigap works alongside Original Medicare, has no provider networks (any provider who accepts Medicare will do), and pays your share of Medicare-approved costs; you keep Original Medicare and typically add a standalone Part D drug plan. Medicare Advantage replaces the way you get Original Medicare through a private plan that usually has networks, may require referrals or prior authorization, often bundles drug and extra benefits, and has its own annual out-of-pocket maximum. You cannot use a Medigap policy to pay costs in a Medicare Advantage plan. For a side-by-side look at the trade-offs, see our Medigap vs. Medicare Advantage comparison.
Standardized Plans and No Networks
In most states, Medigap plans are standardized by plan letter, which means a Plan G is a Plan G no matter which insurer sells it — the benefits are identical by law. (Massachusetts, Minnesota, and Wisconsin standardize their plans differently.) Because the benefits are fixed, the differences between carriers come down to premium, financial strength, rate-increase history, and customer service. And because Medigap has no networks, you can see any doctor or hospital in the country that accepts Medicare, which is a meaningful advantage for people who travel or split time between states.
Premium Trends for 2026
Medigap premiums across most plans have increased moderately for 2026, driven by medical inflation and rising healthcare utilization among the aging population. Industry commentary points to average increases in the mid-single-digit percentage range for many carriers, with competitive markets holding closer to 2–3 percent and some older Plan F blocks rising faster. Treat any percentage as an estimate and compare your own renewal against fresh quotes.
Geography continues to play a significant role in pricing. Plan G premiums in some rural Midwestern areas may start near the low end of the range, while the same plan in high-cost metros such as South Florida or the New York City area can run substantially higher. States with more competitive Medigap markets — more carriers actively selling — tend to have lower average premiums because of price competition.
New Enrollee Considerations for 2026
If you are turning 65 in 2026, your Medigap Open Enrollment Period is the most important window in your Medicare journey. This six-month period begins the first month you are both 65 or older and enrolled in Part B. During this window, every Medigap insurer in your state must offer you any plan they sell at their standard rate with no medical underwriting: no health questions, no premium surcharges for pre-existing conditions, and no denial.
Missing this window creates real risk. After it closes, insurers in most states can evaluate your health history, and conditions like diabetes, heart disease, or COPD could result in higher premiums or outright rejection. Separate guaranteed-issue rights exist in specific situations (for example, losing certain other coverage), but they are narrower than the open-enrollment protection. The rules vary by state, so consult your state insurance department and our healthcare policy guide for state-specific details.
Changes Affecting Medicare Supplement in 2026
No new Medigap plan letters have been introduced for 2026, and the standardized benefit structure remains unchanged. The primary changes are in the dollar amounts: updated deductibles, coinsurance rates, and the Part B premium described above. CMS adjusts these annually based on Medicare spending trends and projections.
Legislative proposals around Medicare Supplement reform — such as standardizing pricing methodologies or extending guaranteed-issue rights beyond initial enrollment — are discussed periodically but had not produced enacted federal changes affecting 2026 plans as of this writing (verify current status). Several states have independently expanded consumer protections, including “birthday rule” or annual guaranteed-issue windows in states such as California and Oregon. If you live in a state considering Medigap reform, your state insurance department website is the best source for current status.
Comparing Plans for 2026: A Practical Framework
Start by determining your healthcare utilization pattern. If you see doctors regularly, manage a chronic condition, or anticipate surgery or procedures, Plan G’s comprehensive coverage minimizes your financial exposure. If you are healthy, rarely visit doctors beyond annual wellness exams, and want a lower premium, Plan N — or even high-deductible Plan G — can deliver strong protection at lower cost.
Next, collect quotes from at least three to five carriers. Since Medigap benefits are standardized by plan letter, the only differences between carriers are premium price, financial strength, rate-increase history, and customer service. Use the plan finder at Medicare.gov, contact an independent broker, or call carriers directly. Pay attention to the pricing model — community-rated, issue-age-rated, or attained-age-rated — because it affects your long-term costs significantly (attained-age policies start cheaper but rise with age).
Finally, consider the total cost of your Medicare package. Add your Part B premium ($202.90 in 2026 for most people), your Medigap premium, and your Part D drug plan premium to calculate your total monthly healthcare expense. Compare this total against the costs of a Medicare Advantage plan, factoring in potential out-of-pocket costs for medical services, network limits, and extra benefits.
Frequently Asked Questions
What is the Part B deductible for 2026?
The Medicare Part B deductible for 2026 is $283 (verify at Medicare.gov). This is the amount you pay annually before Original Medicare begins covering 80 percent of most Part B services. Medigap Plans G, D, M, and N require you to pay this deductible yourself. Plans C and F cover it, but those plans are closed to new enrollees who became Medicare-eligible on or after January 1, 2020.
Are there any new Medigap plans in 2026?
No new Medigap plan letters have been introduced for 2026. The available plans remain A, B, C, D, F, G, K, L, M, and N, with C and F closed to newly eligible beneficiaries. The standardized benefit structure for each plan letter is unchanged (Massachusetts, Minnesota, and Wisconsin use their own standardization).
How do I find the cheapest Plan G in my area?
Use the Medigap plan finder at Medicare.gov, which lists carriers and approximate premiums by ZIP code. Contact an independent Medicare insurance broker who represents multiple carriers, as they can provide exact quotes and identify discounts you may qualify for, such as household or non-tobacco discounts. Compare at least three carriers before enrolling, and ask about each carrier’s rate-increase history.
Can I switch Medigap plans in 2026?
You can apply to switch Medigap plans at any time, but outside your Open Enrollment Period, insurers may use medical underwriting and can decline you or charge more. Some states offer annual guaranteed-issue windows or birthday-rule provisions that allow switching without underwriting. Check your state’s rules through the NAIC or your state insurance department.
Is Medicare Supplement worth it in 2026?
For many beneficiaries, a Medigap policy provides significant financial protection because Original Medicare has no out-of-pocket maximum — your costs are theoretically unlimited without supplemental coverage. A Plan G policy caps your annual exposure for Medicare-approved services at roughly the $283 Part B deductible beyond premiums. Whether it is worth it for you depends on your health, budget, and whether you prefer Medigap’s freedom of provider choice over Medicare Advantage’s lower premiums and extra benefits.
TL;DR — Medigap in 2026: Plan F and Plan C are closed to anyone first eligible for Medicare on or after January 1, 2020, so newly eligible beneficiaries generally choose Plan G or Plan N (with high-deductible Plan G as a lower-premium option). Key 2026 figures to verify at Medicare.gov: Part B deductible $283, standard Part B premium $202.90/month, Part A hospital deductible $1,736 per benefit period. Medigap is standardized and network-free and is not the same as Medicare Advantage. Buy during your six-month Medigap Open Enrollment Period for guaranteed issue with no medical underwriting. This is general information, not insurance or financial advice — confirm current amounts and rules at Medicare.gov and with a licensed agent or your State Health Insurance Assistance Program (SHIP).
Planning Your 2026 Coverage
The Medicare Supplement plans 2026 landscape offers the same proven, standardized options with updated cost figures. Plan G remains the top choice for comprehensive coverage, Plan N provides a strong lower-premium alternative, high-deductible Plan G suits budget-focused healthier enrollees, and Plan F continues to serve existing policyholders who remain eligible. Whatever your choice, enroll during your guaranteed-issue window, compare multiple carriers, verify every dollar figure at Medicare.gov, and factor in all components of your Medicare spending. For detailed breakdowns of individual plans, explore our Medigap plans overview, and visit the healthcare costs guide for broader retirement planning context.
Sources
- Medicare.gov, Medicare costs (2026 Part A and Part B figures)
- Centers for Medicare & Medicaid Services (CMS), 2026 Medicare Parts A & B premiums and deductibles announcement — verify current
- National Association of Insurance Commissioners (NAIC), Medigap consumer guidance