How Much Does a Medicare Supplement Plan Cost in 2026?

Average Medicare Supplement Cost in 2026

The national average monthly premium for a Medicare Supplement plan is roughly $150 in 2026, but that single number hides huge variation by plan letter, age, state, gender, tobacco status, and insurer. A healthy 65-year-old non-smoker shopping the most popular plans can expect a realistic monthly range of about $50 to $250, with extremes pushing well past $350 in high-cost states.

Three plans dominate the new-enrollee market: Plan G, Plan N, and High Deductible Plan G (HDG). Plan G is the most comprehensive option still open to people newly eligible for Medicare, Plan N trades a small copay structure for lower premiums, and HDG offers catastrophic-style coverage at the cheapest monthly cost. You can dig deeper into each option in our Plan G coverage guide, Plan N breakdown, and our High Deductible Plan G analysis.

2026 national average monthly premiums

HDG carries a $2,950 annual deductible in 2026 before benefits kick in, so the savings versus standard Plan G come with real out-of-pocket risk.

Medicare Supplement Premiums by Age

Most Medigap plans use attained-age pricing, which means your premium climbs with each birthday on top of any general rate increase. The table below shows representative national averages for Plan G at each common shopping age.

A few patterns worth noting:

• Premiums roughly 50% higher at 80 than at 65 for attained-age plans.
• Women generally pay 5-10% less than men with most carriers.
• Tobacco users typically pay 15-30% more, regardless of age.
• HDG and Plan N follow the same age curve but at lower absolute dollars.

Medicare Supplement Cost by State

Where you live is the single biggest cost factor outside of plan choice. State regulations, local medical costs, and how competitive the carrier market is all push premiums up or down. The figures below reflect 2026 Plan G state averages.

Five cheapest states for Plan G

Five most expensive states for Plan G

In New York, where community rating is required, Plan N quotes commonly land between $280 and $520 a month depending on carrier and region. In Texas, the same Plan N usually falls between $95 and $175. That's a $4,000+ annual gap for identical federally standardized benefits.

The Three Pricing Methods (and Why They Matter)

How your insurer prices your policy determines how the premium behaves over the next 10 to 20 years. There are three methods, and the difference can amount to tens of thousands of dollars across your retirement.

Community-rated (no-age-rated)

Everyone in the same area with the same plan pays the same base premium regardless of age or gender. Premiums can still rise for inflation and claims experience, but not because you personally turned a year older. Common in New York, Connecticut, Vermont, Maine, Washington, and a handful of others.

Issue-age-rated

Your premium is locked to the age at which you bought the policy. A buyer who enrolled at 65 keeps a 65-year-old's rate forever (subject to general increases), while a 75-year-old buyer starts on the 75-year-old curve. There are no birthday-related bumps after purchase.

Attained-age-rated

The most common method nationally. Your premium is recalculated against your current age every year, so it starts cheap at 65 and climbs steadily. It looks like the best deal at enrollment but often becomes the most expensive choice in your 70s and 80s.

Why Medigap Premiums Increase Every Year

Even if you never file a claim and your health is unchanged, your Medigap rate is almost guaranteed to rise annually. The drivers:

• Medical inflation. Hospital charges, physician fees, and drug-administration costs keep climbing, so the insurer pays more per claim.
• Claims experience of your block. Insurers price each "block" of policyholders together. As the block ages, claims rise and premiums adjust.
• Closed blocks. When a carrier stops selling a plan to new members, the remaining pool gets older and sicker, producing larger hikes (sometimes 50-70%).
• Your age (attained-age plans only).
• Rising loss ratios. Industry-wide Medigap loss ratios have climbed from roughly 77% to 85% over the past several years, with some blocks above 100%, forcing carriers to re-price.

Historical rate-increase trends

At 7% per year a premium doubles in about 10 years. At 13% it doubles in roughly 5½ years, which is exactly why shopping at renewal has become so important. Carriers' rate histories are one of the key factors examined in our ranking of the best Medigap insurance companies.

Discounts That Lower Your Medigap Premium

Carriers don't advertise these aggressively, but most of the big names offer at least one or two. Always ask.

Common Medigap discounts

• Household discount: 5-15%. Available when you live with another adult (sometimes a spouse, sometimes any roommate) and one or both of you have a policy with the same insurer. BCBS plans frequently apply a flat 10%.
• Electronic funds transfer (EFT) discount. A small monthly credit (often $1-$3, or roughly $24 a year) for paying by automatic bank draft.
• Annual payment discount. Pay the year up front and save a few percent.
• Non-tobacco discount. Most carriers price tobacco use as a separate, higher tier rather than as a "discount," but the savings can be 15-30%.
• Online enrollment discount. Humana offers up to 6% for applying online in some states.

Stacking a 10% household discount with an EFT discount and a non-tobacco rate can quietly trim 15-20% off your monthly premium for the life of the policy. The AARP Medicare Supplement plans underwritten by UnitedHealthcare are a notable example of a carrier that builds household savings directly into its filed rates.

How to Lower Your Medicare Supplement Cost

1. Shop at renewal, not just at enrollment

Once your annual rate increase letter arrives, request fresh quotes from three to five carriers. Identical Plan G benefits often vary by $50-$100 a month between insurers in the same ZIP code.

2. Use your state's birthday rule

Fifteen states now have some version of a Medigap "birthday rule" giving current policyholders a guaranteed-issue window each year to switch plans without medical underwriting: California, Delaware (2026), Idaho, Illinois, Indiana (2026), Kentucky, Louisiana, Maryland, Nevada, Oklahoma, Oregon, Utah, Virginia, West Virginia (June 2026), and Wyoming. Connecticut, Maine, New York, and Washington allow year-round switching. Our guide to switching Medigap plans walks through the exact windows.

3. Consider High Deductible Plan G

HDG charges roughly one-third the premium of standard Plan G. After meeting the $2,950 annual deductible, coverage is identical to Plan G. For healthy enrollees who rarely hit the deductible, the math is overwhelmingly in HDG's favor.

4. Buy young and healthy

The Medigap Open Enrollment Period at 65 is the only time most people are guaranteed acceptance at the best rate. Outside that window, insurers in most states can deny you or surcharge you for pre-existing conditions. If you're new to Medicare, our first-time enrollment walkthrough explains how to time your application.

5. Pick an issue-age or community-rated carrier if available

You'll pay slightly more at 65, but you'll likely pay far less at 78.

What a Fair Quote Looks Like (and Red Flags to Avoid)

A fair 2026 quote for a healthy 65-year-old non-smoker generally falls in these ranges by state tier:

Red flags

• A "teaser" quote far below the market average. Often a new block from a carrier with a history of double-digit hikes once you're locked in.
• Carrier refuses to disclose pricing method. Always ask: community, issue-age, or attained-age.
• No published rate-increase history. Reputable agents will share 3-5 years of historical increases.
• Pressure to enroll today. Medigap benefits are federally standardized. There's no genuine urgency outside your Open Enrollment Period.
• Steering you toward Medicare Advantage instead. Some agents earn higher commissions on MA. Read our Medigap vs. Medicare Advantage comparison before being talked out of supplemental coverage.

Frequently Asked Questions

How much should I pay for Medigap in 2026?

A healthy 65-year-old should expect roughly $110-$200 a month for Plan G, $85-$140 for Plan N, and $35-$70 for High Deductible Plan G, depending on state and carrier. Anything materially above those ranges deserves a second quote from a competing insurer. Remember that benefits are identical between carriers for the same plan letter.

Why did my Medicare Supplement premium go up so much this year?

Industry-wide rate hikes averaged about 9.8% in 2024 and 13% on Plan G in 2025 because of rising medical inflation, higher claims experience, and loss ratios climbing toward and above 85%. If you're in an attained-age plan, part of the increase is also from your own aging. Closed blocks (plans no longer open to new members) tend to see the steepest hikes.

Is community-rated, issue-age, or attained-age cheaper long-term?

Attained-age is usually cheapest at 65 but most expensive by your late 70s because the premium climbs with every birthday. Issue-age locks in your starting-age rate and tends to be the best value if you plan to keep the policy 10+ years. Community-rated removes age from the equation entirely and is most common in states like New York and Connecticut.

Can I switch Medigap plans to save money?

Yes, but in most states you'll face medical underwriting and could be denied. The exceptions are the 15 birthday-rule states plus Connecticut, Maine, New York, and Washington, where you can switch without health questions during specific windows. Always apply for the new plan and get approval before cancelling the old one.

Are cheap Medicare Supplement plans actually any good?

The benefits are federally standardized, so a "cheap" Plan G covers exactly the same services as an expensive Plan G. What you need to scrutinize is the carrier's rate-increase history, financial strength (AM Best rating), and whether the block is open or closed. A low premium from a carrier that raises rates 20% a year isn't actually cheap, while a moderately priced plan from a stable carrier often wins over a decade.