Best Medicare Supplement Plans
for Seniors in 2026
Choosing the right Medicare Supplement (Medigap) plan can save seniors up to $1,200 per year in out-of-pocket costs. This expert guide compares Plan G, Plan N, Plan F and more — so you can make the smartest decision for your health and budget.
📊 Compare Plans Now →📌 Key Takeaways
- Plan G is the best overall Medicare Supplement plan for most seniors in 2026
- Plan N is best for healthy seniors who want lower premiums
- Plan F is no longer available to those new to Medicare after Jan 1, 2020
- Premiums range from $80–$350/month depending on age, state & insurer
- Best time to enroll: during your 6-month Medigap Open Enrollment Period
Seniors reviewing Medicare Supplement plan options with a licensed advisor
What Is a Medicare Supplement Plan?
A Medicare Supplement plan — also called Medigap — is private health insurance designed to fill the coverage gaps left by Original Medicare (Part A and Part B). According to CMS.gov, while Medicare covers 80% of approved medical costs, you’re responsible for the remaining 20%, which can add up quickly if you have serious health issues.
In 2026, the average American senior faces over $5,000 in out-of-pocket Medicare costs annually without supplemental coverage. A Medigap plan protects you from these unexpected bills by covering copayments, coinsurance, and deductibles. You can verify your eligibility at Medicare’s official Plan Finder.
Top Medicare Supplement Plans Compared (2026)
There are 10 standardized Medigap plans available in most states. As outlined by Medicare.gov’s official Medigap page, the most popular are Plan G, Plan N, and Plan F. Here’s how they compare:
- Part A coinsurance & hospital
- Part B coinsurance
- Skilled nursing facility
- Foreign travel emergency
- No network restrictions
- Part A coinsurance & hospital
- Part B coinsurance*
- Skilled nursing facility
- Foreign travel emergency
- *Copays apply for visits
- ALL gaps covered
- Part B deductible included
- No out-of-pocket costs
- Only for pre-2020 enrollees
- Highest premium
Detailed Plan Comparison Chart
| Coverage Benefit | Plan G BEST | Plan N | Plan F | Plan K |
|---|---|---|---|---|
| Part A Coinsurance & Hospital Costs | ✓ | ✓ | ✓ | ✓ |
| Part B Coinsurance or Copayment | ✓ | Copay* | ✓ | 50% |
| Blood (First 3 Pints) | ✓ | ✓ | ✓ | 50% |
| Part A Hospice Coinsurance | ✓ | ✓ | ✓ | 50% |
| Skilled Nursing Facility | ✓ | ✓ | ✓ | 50% |
| Part A Deductible | ✓ | ✓ | ✓ | 50% |
| Part B Deductible | ✗ | ✗ | ✓ | ✗ |
| Part B Excess Charges | ✓ | ✗ | ✓ | ✗ |
| Foreign Travel Emergency (80%) | ✓ | ✓ | ✓ | ✗ |
| Est. Monthly Premium | $120–$220 | $80–$160 | $180–$350 | $60–$110 |
*Plan N requires copays up to $20 for office visits and up to $50 for ER visits. Source: Medicare.gov. Rates as of 2026.
Medicare Supplement Plan Comparison Chart — Benefits coverage at a glance (2026)
Which Medicare Supplement Plan is Best for You?
🥇 Plan G — Best Overall (Most Recommended)
Medicare Supplement Plan G is the most popular Medigap plan in 2026. It covers virtually everything Original Medicare doesn’t — except the Part B annual deductible ($257 in 2026). Once you pay that deductible, Plan G pays 100% of all Medicare-approved costs for the rest of the year. According to KFF (Kaiser Family Foundation), Plan G enrollment has surpassed Plan F since 2021.
Best for: Seniors who want comprehensive coverage and don’t want to worry about surprise medical bills. If you have frequent doctor visits, hospitalizations, or chronic conditions, Plan G is often worth the slightly higher premium.
🥈 Plan N — Best for Healthy Seniors on a Budget
Medicare Supplement Plan N offers solid coverage at a lower monthly premium than Plan G. The trade-off: you’ll pay small copays — up to $20 for doctor visits and up to $50 for ER visits (waived if admitted). Plan N also doesn’t cover Part B excess charges. For research and data on Plan N costs, ValuePenguin’s Medicare analysis provides up-to-date comparisons.
Best for: Seniors who are generally healthy, rarely visit the doctor, and want to save $40–$80/month on premiums.
🥉 Plan F — Legacy Plan (Available Only if Eligible)
Medicare Supplement Plan F was the most comprehensive plan ever offered. However, it’s no longer available to people who became eligible for Medicare on or after January 1, 2020. See HHS.gov and the CMS policy page for details on MACRA legislation changes.
How Much Does Medicare Supplement Cost in 2026?
Medicare Supplement premiums vary significantly based on five key factors: your age, gender, location, tobacco use, and the insurance company. Research from Bankrate and Policygenius shows the same Plan G can cost $130/month with one insurer and $200/month with another — for identical coverage.
| Plan | Age 65 | Age 70 | Age 75 | Age 80 |
|---|---|---|---|---|
| Plan G | $110–$145 | $130–$175 | $155–$210 | $190–$265 |
| Plan N | $80–$110 | $95–$135 | $115–$165 | $145–$210 |
| Plan F | N/A* | $170–$210 | $200–$255 | $240–$320 |
| Plan K | $55–$85 | $65–$100 | $80–$120 | $100–$145 |
*Plan F not available to new 2020+ enrollees. Source: KFF Medicare Data. Actual rates vary by state and insurer.
When to Sign Up for Medicare Supplement
Timing is critical. The best time to enroll in a Medicare Supplement plan is during your Medigap Open Enrollment Period. According to Benefits.gov:
- ✅ Starts the first month you are both 65+ AND enrolled in Medicare Part B
- ✅ Lasts for 6 months
- ✅ During this period, insurers cannot deny you coverage or charge extra for pre-existing conditions
- ⚠️ After this period ends, you may be subject to medical underwriting and could be denied or charged more
Top Medicare Supplement Insurance Companies 2026
The following companies are rated highly by independent sources including Investopedia and US News Health:
| Company | AM Best Rating | Plan G Avg. Premium | Customer Rating |
|---|---|---|---|
| AARP/UnitedHealthcare | A+ | $145–$185/mo | ⭐⭐⭐⭐½ |
| Mutual of Omaha | A+ | $120–$160/mo | ⭐⭐⭐⭐⭐ |
| Aetna | A | $115–$155/mo | ⭐⭐⭐⭐ |
| Cigna | A | $118–$158/mo | ⭐⭐⭐⭐ |
| Humana | A- | $125–$170/mo | ⭐⭐⭐⭐ |
| Blue Cross Blue Shield | A+ (varies) | $130–$175/mo | ⭐⭐⭐⭐½ |
📎 Trusted Sources & Useful Resources
The following official, educational, and expert resources were used in researching this guide. We encourage seniors to verify all information through these trusted sources.
🏛️ Official Government Sources
🎓 Research & Educational Sources
💰 Insurance & Finance Expert Sources
👴 Senior Health & Aging Resources
💬 Community & Discussion Forums
Frequently Asked Questions (FAQ)
Plan G is the best Medicare Supplement plan for most seniors in 2026. It covers nearly all Medicare-approved costs (except the Part B deductible of $257), has no network restrictions, and is accepted by any doctor or hospital that accepts Medicare. Verify at Medicare.gov.
Plan G costs between $100 and $300 per month depending on your age, gender, state, tobacco use, and insurer. Compare rates at Medicare’s Plan Finder or through Policygenius.
If you enroll during your 6-month Medigap Open Enrollment Period, insurers cannot deny you. Outside of this window, in most states, insurers can use medical underwriting. Learn about your rights at SHIP or FTC Consumer Info.
Yes, for most seniors. Plan G provides peace of mind and protection from large unexpected bills. According to KFF research, seniors with Medigap plans have significantly lower out-of-pocket costs in years with hospitalizations. It’s especially valuable for seniors with chronic conditions or those who travel internationally.
Medicare Advantage (Part C) replaces Original Medicare and is offered by private insurers — it often has networks, copays, and extra benefits like dental/vision. Medicare Supplement (Medigap) works alongside Original Medicare to cover gaps. Learn more about the differences at Medicare.gov and Investopedia.
Related Medicare Guides
- 📖 Medicare Plan A vs Plan B: Complete Guide 2026
- 📖 How to Apply for Medicare Step by Step
- 📖 Medicare vs Medicaid — What’s the Difference?
- 📖 Cheapest Medicare Advantage Plans by State 2026
- 📖 Medicare Annual Enrollment Period 2026 Guide
- 📖 Medicare Prescription Drug Coverage Explained
Our team of licensed Medicare insurance specialists has helped over 50,000 seniors find the right coverage. All content is reviewed for accuracy and compliance with current CMS guidelines.