Premiums for Medigap policies vary dramatically by plan letter, insurer, state, and age, which is why a clear Medigap cost comparison chart is one of the most valuable tools in your Medicare planning toolkit. Average premiums can range from under $50 per month for a high-deductible plan to over $350 per month for the most comprehensive coverage. This guide provides detailed cost data for every plan letter in 2026, explains the factors driving those costs, and helps you project your total annual spending under each option.
2026 Medigap Premium Ranges by Plan Letter
The following ranges reflect approximate monthly premiums for a 65-year-old nonsmoker enrolling during their Medigap Open Enrollment Period, based on state insurance department rate filings and KFF data. Actual premiums depend on your ZIP code, gender, insurer, and applicable discounts.
Plan A: $85 to $210 per month. Plan B: $105 to $240 per month. Plan C (pre-2020 eligible only): $155 to $320 per month. Plan D: $115 to $250 per month. Plan F (pre-2020 eligible only): $165 to $345 per month. High-Deductible Plan F: $35 to $80 per month (with a $2,800 deductible in 2026). Plan G: $125 to $290 per month. High-Deductible Plan G: $30 to $75 per month (with a $2,800 deductible in 2026). Plan K: $45 to $125 per month. Plan L: $65 to $180 per month. Plan M: $100 to $220 per month. Plan N: $95 to $220 per month.
This medigap cost comparison chart shows that the most popular plans, G and N, occupy the middle of the cost spectrum while offering some of the strongest coverage available to new enrollees.
Total Annual Cost Estimates
Monthly premiums alone do not tell the full cost story. To accurately compare plans, you need to account for deductibles, copays, coinsurance, and potential excess charges. The 2026 Part A deductible is projected at approximately $1,676 per benefit period, and the Part B deductible is approximately $265. Here are estimated total annual costs for a beneficiary with moderate healthcare usage.
Plan G: $1,765 to $3,745 total (12 months of premiums plus $265 Part B deductible). Plan N: $1,405 to $2,905 total (12 months of premiums plus $265 Part B deductible plus an estimated $100 to $200 in copays). Plan F: $1,980 to $4,140 total (premiums only, all out-of-pocket costs covered). Plan K: $540 to $1,500 in premiums, plus up to $7,280 in cost-sharing if the annual limit is reached. Plan L: $780 to $2,160 in premiums, plus up to $3,640 in cost-sharing if the annual limit is reached. High-Deductible Plan G: $360 to $900 in premiums plus $2,800 deductible before coverage begins.
For a full breakdown of what each plan covers, see our Compare Medicare Supplement Plans Guide.
How Age Affects Medigap Costs
Most Medigap insurers use attained-age rating, which means your premium increases as you get older. A plan that costs $140 per month at age 65 might cost $200 per month at age 75 and $280 or more at age 85, even before accounting for medical inflation adjustments. Over a 20-year period, attained-age rating can add 60 to 100 percent to your original premium.
Issue-age-rated plans lock your base rate at the age you enroll. Medical inflation still applies, but age-related increases do not. Community-rated plans charge everyone the same base rate regardless of age. While community-rated and issue-age-rated plans have higher starting premiums, they tend to be cheaper over a long retirement. Any thorough medigap cost comparison chart should account for the rating method, not just the starting premium.
Geographic Price Variation
Medigap premiums vary substantially by state and even by county. According to data from the American Association for Medicare Supplement Insurance, the same Plan G policy from the same insurer can cost 40 to 60 percent more in one state than another. States with higher healthcare costs, older populations, or fewer competing insurers tend to have higher premiums.
For example, Plan G premiums for a 65-year-old tend to be lowest in states like Ohio, Iowa, and Missouri, where monthly rates often start below $120. In states like New York, Connecticut, and Florida, the same plan can start at $200 or higher. State-specific guides provide more granular data. See our coverage of Medicare Supplement Plans in PA, Plans in Maryland, and Plans in California.
Discounts That Lower Your Premium
Many Medigap insurers offer discounts that can meaningfully reduce your costs. Nonsmoker discounts of 5 to 10 percent are common. Household discounts, available when two or more people in the same household hold policies from the same insurer, typically save 5 to 7 percent. Some companies offer discounts for paying annually instead of monthly, for enrolling online, or for automatic bank draft payments.
Stacking discounts is possible with some carriers. A nonsmoking couple paying annually from the same insurer could save 15 to 20 percent compared to the standard rate. Over a decade, those savings amount to thousands of dollars. Always ask about every available discount when requesting quotes.
Comparing Medigap to Medicare Advantage Costs
Medicare Advantage plans often advertise $0 premiums, which makes them appear dramatically cheaper than Medigap. However, Advantage plans carry their own out-of-pocket costs including copays, coinsurance, and annual maximum out-of-pocket limits that can reach $8,850 or more in 2026. If you use a significant amount of healthcare, your total spending under Medicare Advantage could exceed what you would pay under Medigap plus a Part D plan.
The cost comparison depends heavily on your healthcare usage. Healthy beneficiaries who use few services may spend less with Medicare Advantage. Beneficiaries with chronic conditions or frequent specialist visits often find Medigap more predictable and cost-effective. Our Medigap vs Medicare Advantage guide examines this tradeoff in detail.
Frequently Asked Questions
Why do premiums vary so much between insurers for the same plan?
Because benefits are standardized, the premium differences come from each insurer’s operating costs, claims experience, risk pool demographics, and profit targets. A company with a younger, healthier enrollee pool can charge lower premiums. A company with a strong brand may charge more because of perceived value and convenience.
How often do Medigap premiums increase?
Most insurers adjust premiums annually. The average annual increase has been 3 to 7 percent in recent years according to NAIC data, though some insurers in competitive markets have held rates flat. You can review your insurer’s rate increase history through your state’s insurance department website.
Is a high-deductible Medigap plan worth considering?
High-deductible Plans F and G have very low premiums, often $30 to $80 per month, but you must meet a $2,800 deductible (projected for 2026) before the plan pays anything. These plans are best for very healthy beneficiaries who want catastrophic protection at minimal monthly cost. If you have even moderate healthcare usage, a standard Plan G or Plan N typically costs less in total.
Can I use this chart to compare plans in my specific area?
This chart provides national ranges. For precise premiums in your ZIP code, use the Medicare.gov plan finder tool or request quotes from an independent broker. Our 10 best supplemental insurance companies guide can help you identify which carriers to request quotes from.
Do premiums ever decrease?
It is uncommon but not unheard of. Some insurers have reduced premiums in states where they are trying to grow market share or where their claims experience has been better than projected. More commonly, premiums increase but at a slower rate than medical inflation.
Using This Data to Make Your Decision
Start by identifying the plan letter that matches your coverage needs. Then request quotes from three to five insurers in your ZIP code and compare total annual costs, not just monthly premiums. Factor in the insurer’s rating method, available discounts, and historical rate increase trends. For most new beneficiaries, Plan G and Plan N represent the best combination of coverage and value. Use our Plan N vs Plan G comparison to decide between them, and visit our healthcare policy guide for broader Medicare planning resources.