What's the average cost of a Medicare Supplement per month?
The average cost of a Medicare Supplemental Insurance (Medigap) plan is $217 per month, according to data compiled by KFF. However, depending on the specific plan letter, your age, and your location, monthly premiums generally range between $100 and $300 for mid-to-high-level plans, though outlier rates can fall anywhere from $30 to $500+ per month.
Because Medigap plans are standardized by the federal government, the basic benefits of a specific plan letter (such as Plan G) are identical regardless of which insurance company sells it. Prices vary extensively because private insurers set their own rates.
Average Cost Breakdown by Popular Plan Types
The most common Medigap options carry different baseline price expectations:
| Medigap Plan Type | Average Monthly Premium | What It Covers |
|---|---|---|
| Plan G (Most Popular) | $120 – $250 | Covers all Original Medicare out-of-pocket gaps except for the Part B deductible ($283/year). |
| Plan N | $85 – $190 | Lower premiums in exchange for small copays (up to $20 for office visits, $50 for ER). Does not cover Part B excess charges. |
| Plan F (Comprehensive) | $150 – $350 | Covers 100% of all gaps including the Part B deductible. (Only available if you became eligible for Medicare before Jan 1, 2020). |
| High-Deductible Plan G | $30 – $70 | Same coverage as standard Plan G, but you must pay a $2,950 deductible out-of-pocket before benefits kick in. |
Major Factors That Affect Your Premium
- Plan Choice: More comprehensive plans (like F or G) cost more than basic or cost-sharing options (like K, L, or N).
- Pricing Structure: Companies calculate age-based premiums using three different methodologies:
- Community-rated: Everyone in the same area pays the same rate regardless of age.
- Issue-age-rated: Premium is based on the age you are when you buy the policy; it won't go up because you grow older.
- Attained-age-rated: Premium starts low but increases automatically as you age.
- Geography: Rates vary substantially by state and ZIP code due to local healthcare costs and state regulations.
- Discounts & Tobacco Use: Smokers usually pay higher rates, whereas some companies offer household discounts if spouses enroll together.
Important Additional Costs
When budgeting, keep in mind that a Medigap premium does not replace your other Medicare bills. You must continue to pay your standard Medicare Part B premium, which is $202.90 per month. Additionally, standard Medigap policies do not include prescription drug coverage, meaning you will likely need to purchase a separate Medicare Part D plan.
To see exactly what options cost near you, you can look up specific carriers using the official Medicare Medigap Policy Finder tool.
What is the downside to Medicare supplement plans?
The main downsides to Medicare Supplement (Medigap) plans are higher monthly premiums, a lack of prescription drug or extra routine benefits, and strict enrollment windows that can lead to coverage denial.
Key Disadvantages
- Higher Monthly Premiums: Medigap plans require a separate monthly fee in addition to your standard Medicare Part B premium. These rates often rise as you age.
- No Prescription Drug Coverage: Supplements do not cover outpatient medications. You must buy a separate Medicare Part D plan, which adds another monthly bill.
- No Extra Routine Benefits: These plans cover medical care only. They exclude routine dental, vision, and hearing care.
- Medical Underwriting Risks: You have a guaranteed right to buy any Medigap plan without health questions only during your initial 6-month open enrollment window starting at age 65 and enrolled in Part B. Outside this window, insurers can review your medical history and deny coverage or charge more for pre-existing conditions.
What is the best supplemental insurance when you're on Medicare?
The best Medicare supplemental insurance (Medigap) depends on your needs, but Medigap Plan G is widely considered the best overall choice because it offers comprehensive coverage with predictable costs.
Top Medigap Plan Options
- Plan G: Covers all out-of-pocket costs for Original Medicare except the Part B deductible, making it the most popular choice for new enrollees.
- Plan N: Offers lower monthly premiums than Plan G, but you pay small copayments for some doctor and emergency room visits.
- Plan F: Provides the most complete coverage—including the Part B deductible—but is only available if you were eligible for Medicare before January 1, 2020.
Top-Rated Insurance Carriers
Because Medigap plans are standardized by the government, a Plan G from one company provides the exact same medical benefits as a Plan G from another. The difference is the price and customer service. Top providers include:
- State Farm: Highly rated for slow and stable price increases over time.
- AARP/UnitedHealthcare: Noted for wide availability across all 50 states.
- Mutual of Omaha: Known for strong financial stability and fast claim-processing times.
Key Things to Know
- Standardized benefits: Every plan with the same letter name offers identical coverage.
- Doctor choice: You can see any doctor or specialist in the U.S. who accepts Original Medicare.
- No network restrictions: Medigap plans do not use restrictive provider networks or require referrals.
- Best time to enroll: Your 6-month Open Enrollment period starts the month you turn 65 and enroll in Part B, allowing you to buy any plan without medical underwriting.
Is a Medicare Supplement worth the cost?
Medicare supplement plans (Medigap) are worth the cost if you want predictable medical expenses, freedom to see any doctor who accepts Medicare, and protection against the 20% coinsurance that Original Medicare does not cover.
Opinions are mixed on Reddit, as some beneficiaries find the monthly premiums high and prefer Medicare Advantage, while others consider Medigap essential for avoiding unexpected medical bills.
Key Benefits
- No Network Restrictions: You can visit any doctor, specialist, or hospital nationwide that accepts Original Medicare.
- No Pre-Authorizations: Insurance companies cannot delay or deny treatments that Medicare already approves.
- Financial Predictability: They cover most out-of-pocket copays and coinsurance, reducing the risk of massive bills during a serious illness.
- Guaranteed Renewable: Policies are permanent and cannot be canceled by the insurer as long as you pay your monthly premium.
Downsides
- Higher Monthly Premiums: You pay a separate monthly fee in addition to your standard Part B premium.
- No Extra Perks: Medigap plans do not cover prescription drugs (you need a separate Part D plan), dental, vision, or hearing aids.
- Underwriting Risks: If you miss your initial 6-month Open Enrollment window (which starts when you turn 65 and enroll in Part B), insurers can charge you more or deny coverage based on your health history.
When They Are Worth It
- You anticipate high medical costs or want peace of mind against major health events.
- You travel frequently or live in a rural area with limited provider networks.
- You want to see specialists without needing a referral.
When They Might Not Be Worth It
- You are on a strict budget and cannot afford the monthly premium.
- You prefer bundled coverage like Medicare Advantage, which often includes dental, vision, and prescription drugs for a lower (or $0) monthly premium, despite having network limits.
What is the average Medigap premium in 2026?
The overall average Medigap (Medicare Supplement) monthly premium in 2026 is approximately $149.50, though most standard plans range between $100 and $300 per month depending on your choice of plan, age, and location.
Average Premiums by Popular Plan Type
Costs vary significantly depending on the specific standardized letter plan you choose:
- Plan G (Most popular for new enrollees): Averages $120 to $250 per month (around $142–$180 for a 65-year-old).
- Plan N (Lower premium with small copays): Averages $85 to $190 per month (around $112–$140 for a 65-year-old).
- Plan F (Legacy full-coverage plan for those eligible before 2020): Averages $150 to $350 per month.
- High-Deductible Plan G: Averages $30 to $70 per month.
Factors Affecting Your Premium
- Age: Plans often use "attained-age" pricing, meaning premiums increase as you get older.
- Location: State regulations and local healthcare costs heavily influence regional averages. For detailed figures, you can check guides like the Average Cost of Medigap Plans on The Senior List or review comparisons via US News Health.
- Discounts: Tobacco use, household discounts, and gender can also alter your individual rate.
Average Cost of Medicare Supplement Plans
How much should a Medicare Supplement cost per month?
Medicare Supplement (Medigap) plans typically cost between $100 and $300 per month for mid-level coverage, though overall prices range from $32 to over $600 per month depending on your choice of plan, age, and location.
You can research official plan details using the Medicare Plan Finder.
Average Costs by Popular Plan Type
- Plan G (Most Popular): Averages $120 to $250 per month. It covers all out-of-pocket gaps except the annual Part B deductible.
- Plan N: Averages $85 to $190 per month. It has lower monthly premiums than Plan G, but requires small copayments for some doctor and emergency room visits.
- Plan F: Averages $150 to $350 per month. It covers all gaps, but is only available if you were eligible for Medicare before January 1, 2020.
- High-Deductible Plan G: Averages $30 to $70 per month. You must meet a $2,950 deductible before the plan starts paying in 2026.
Key Factors That Change Your Price
- Age: Plans may use Attained-Age pricing where rates increase as you get older, or Issue-Age pricing based on your age when you first buy.
- Location: State and local ZIP code variations heavily impact rates (for instance, averaging higher in areas like New York).
- Tobacco Use: Smokers often pay $15 to $73 more per month.
- Part B Premium: You must still continue paying your standard Medicare Part B premium ($202.90/month in 2026) in addition to your supplement cost.
What are the five things that Medicare will not cover in 2026?
Original Medicare (Parts A and B) does not cover routine dental care, routine vision care, hearing aids, long-term custodial care, and health care received overseas.
Major Uncovered Services in 2026
- Most dental care: Original Medicare does not pay for routine cleanings, checkups, fillings, tooth extractions, root canals, or dentures.
- Routine vision care: Regular eye exams, eyeglasses, and contact lenses are excluded, though treatments for medical eye conditions like cataracts or glaucoma are covered.
- Hearing aids: Original Medicare does not cover hearing aids or routine exams used to fit them.
- Long-term care: Extended nursing home care or custodial care (help with daily personal activities like bathing or dressing) is not covered outside of limited short-term skilled nursing rehabilitation.
- Overseas coverage: Medical care received outside of the United States and its territories is generally excluded, with rare exceptions like emergencies on cruise ships close to a U.S. port.
Which Medicare plan is free at age 65?
Medicare Part A (Hospital Insurance) is free (has a $0 monthly premium) for most people when they turn 65.
How to Qualify for Free Part A
You get premium-free Part A if you or your spouse paid Medicare taxes while working for at least 10 years (or 40 work quarters).
What Isn't Free
While Part A is premium-free for eligible workers, other parts of Medicare require monthly payments and out-of-pocket costs:
- Part B (Medical Insurance): Covers doctor visits and outpatient care, but requires a standard monthly premium.
- Part C (Medicare Advantage) & Part D (Prescription Drugs): Offered by private companies and usually charge separate monthly premiums.
- Deductibles & Copays: Even with free Part A, you still pay deductibles (such as the hospital inpatient deductible) when you receive care.
You can read more about what is covered at no cost through What Medicare Is Free for Seniors or review specific 12 Free Medicare Services provided by wellness and preventive care.
What is the biggest mistake seniors make when enrolling in Medicare?
The biggest mistake seniors make when enrolling in Medicare is missing key enrollment deadlines, which can lead to permanent, lifelong late-enrollment penalties and gaps in medical coverage.
Top Medicare Enrollment Mistakes
- Missing the Initial Enrollment Period (IEP): Your window to sign up is a 7-month period that starts 3 months before the month you turn 65, includes your birthday month, and ends 3 months after. Missing this window without qualifying for a special enrollment period leads to delays and penalties.
- Failing to Understand Work Rules: Many seniors either sign up for Part B when they don't need to (because they are still working and covered by an employer with 20 or more employees) or fail to realize they must sign up when they retire, missing their 8-month special window.
- Ignoring Prescription Drug Coverage (Part D): Failing to sign up for Part D when first eligible—even if you take no medications—can trigger a permanent 1% penalty added to your monthly premium for every month you delayed.
- Confusing Advantage and Supplement Plans: Assuming a low-premium Medicare Advantage plan always means lower overall out-of-pocket costs without checking network restrictions, copays, and prior authorization rules. You can read more details on avoiding these errors via the AARP Medicare Guide.
Do seniors really need supplemental insurance?
Yes, most seniors need supplemental insurance because Original Medicare covers only about 80% of medical costs and has no yearly limit on out-of-pocket spending.
Original Medicare (Parts A and B) leaves you responsible for deductibles, copayments, and a 20% coinsurance for doctor visits and medical services. Without extra coverage, a major illness or chronic health issue can lead to very high, unpredictable bills.
Why Seniors Consider Supplemental Insurance (Medigap)
- Cost Protection: Fills the financial gaps of Original Medicare and caps your risk against massive medical debt.
- Doctor Freedom: Allows you to see any doctor or specialist in the United States who accepts Medicare, with no network rules or referrals needed.
- Travel Coverage: Many plans help pay for emergency medical care when you travel outside the country.
Who Might Not Need It
- Dual-Eligible Beneficiaries: Seniors who have both Medicare and Medicaid usually do not need a Medigap plan.
- Existing Coverage: Retirees who already have robust coverage through military benefits (like Tricare For Life) or former employer retiree plans already have built-in wraparound protection.
- Self-Insuring: Individuals with substantial savings who can comfortably pay thousands of dollars out-of-pocket for major medical events may choose to go without a supplement.
Important Alternatives and Rules
- Medicare Advantage (Part C): This is an alternative managed-care way to get Medicare benefits. These plans often include prescription drugs and lower premiums, but they use strict provider networks and may require prior approval for treatments. You cannot have both a Medigap plan and a Medicare Advantage plan at the same time.
- Enrollment Timing: The best time to buy a Medigap policy is during your 6-month open enrollment window that starts when you turn 65 and enroll in Part B. Waiting past this window means you may have to answer health questions (medical underwriting) and could face higher costs or denial. You can compare details and plans through resources like the CBS News Medigap Overview.