Medigap Under 65: Disability Coverage Options by State

Why Medigap Works Differently Before Age 65

When you become eligible for Medicare due to disability or ESRD, you have access to Original Medicare (Parts A and B) just like someone who ages in at 65. The problem is what happens when you try to add a Medicare Supplement policy. Federal law guarantees a six-month Medigap Open Enrollment Period only for people who are 65 or older and enrolled in Part B. That means insurers are not federally required to sell Medigap to younger beneficiaries, even those who have been on Medicare for years.

State law fills the gap. According to the latest KFF analysis, 36 states require insurers to issue at least one kind of Medigap policy to beneficiaries under age 65 with disabilities during an initial open enrollment period, while the remaining states and the District of Columbia have no such requirement. The plans you can buy, the premiums you pay, and the underwriting rules all vary widely based on where you live. In 2026, the standard Medicare Part B premium is $202.90 per month, up from $185.00 in 2025, and the annual Part B deductible is $283, up from $257 in 2025, which makes the gaps in Original Medicare more expensive than ever to leave uncovered.

If you are weighing supplemental options in general, our Medigap vs Medicare Advantage breakdown explains how the two paths differ structurally.

States That Require or Regulate Under-65 Medigap

About 36 states require insurers to offer at least one Medigap policy to people under 65 with disabilities, and roughly 26 of those states extend the requirement to people with ESRD. The exact plans available, premium rules, and ESRD protections differ in each one. Several states updated their laws for 2025 and 2026, so the table below reflects the latest rules.

Two notable updates take effect in 2026. Nevada's new under-65 protections cap premiums at the age-65 rate for Medigap plans A, B, and D, and at no more than 200% of the age-65 rates for other plans. A one-time enrollment window runs from October 1, 2025 to April 1, 2026 to allow existing under-65 Medicare beneficiaries to enroll. After that one-time window closes, ongoing enrollment periods begin with the month a person first enrolls in Medicare Part B. Texas also enacted a 2025 law requiring all plans to be guaranteed-issue for people under 65 who have ESRD or ALS, with premium caps for those groups. Nebraska joined the list of protection states on January 1, 2025, and Virginia's 2024 law extended equal-premium Medigap access to under-65 beneficiaries including those with ESRD. Indiana also broadened its rule for 2025 by extending guaranteed-issue access from Plan A only to all Medigap plans an insurer sells.

States with no Medigap requirement for under-65 enrollees include Alabama, Alaska, Arizona, Iowa, North Dakota, and a handful of others. In these states, whether you can buy a Medigap policy at all depends on which (if any) insurers voluntarily sell to younger beneficiaries, and they can use full medical underwriting.

For a broader look at how supplemental rules differ across the country, see our Medicare Supplement plans by state guide.

What Under-65 Medigap Premiums Typically Look Like

Even in states that require carriers to sell to under-65 enrollees, the price tag is often the bigger obstacle than availability. Pricing depends on each state's rate rules. The 2026 average Plan G premium at age 65 is roughly $166 to $180 per month nationally, but under-65 enrollees in states without rate caps often pay well above that benchmark.

In states without rate caps, an under-65 disabled enrollee may pay 1.5 to 2 times what a 65-year-old pays for the same Plan G or Plan N. Where a 65-year-old might pay around $166 a month for Plan G, an under-65 enrollee in an unregulated state could face $250 to $400 a month or more. In community-rated states like Connecticut and New York, you pay the same as everyone else, but the underlying community rate is higher than attained-age pricing in other states. New states are joining the protections column: Indiana now caps under-65 rates for plans A, B, and D at the age-65 rate with other plans limited to 200% of the age-65 premium, Nevada follows the same model starting in 2026, and Virginia bars higher premiums for under-65 enrollees entirely.

For typical national pricing benchmarks, our Medicare Supplement cost guide for 2026 breaks down how premiums are structured, and our shopper's guide to Medigap quotes explains how to request comparable offers.

Enrollment Timing and the Big Reset at 65

The timing of your Medigap purchase before and at age 65 has a major impact on your long-term cost and coverage stability.

Your Initial Six-Month Window Under 65

In most states that require under-65 Medigap, your six-month open enrollment period begins when you first enroll in Part B due to disability. During this window, you typically cannot be denied a policy, although the plan choices may be limited and the premium will still reflect under-65 rates.

The Federal Reset at Age 65

Here is the most important piece of good news for anyone on Medicare due to disability: when you turn 65, federal law gives you a brand-new six-month Medigap Open Enrollment Period as long as you are enrolled in Part B. During this window, any carrier in your state must:

• Sell you any Medigap plan they offer
• Charge you their standard preferred rate (no disability surcharge)
• Skip medical underwriting entirely

This is often the first realistic chance for a disabled beneficiary to get reasonably priced Medigap, and it usually delivers a significant rate drop compared to under-65 pricing. Our Medicare Supplement Open Enrollment guide walks through the full rules and deadlines.

A Note on California's Birthday Rule

If you already have a California Medigap policy as an under-65 disabled beneficiary, you can use the state's annual birthday rule to switch carriers without underwriting. California gives Medigap enrollees an annual window, following their birthday, when they can switch to any other Medigap plan with equal or lesser benefits, without medical underwriting. The birthday rule does not let you buy Medigap for the first time, only swap existing coverage. For a broader look at how these switching rules work, see our Medigap birthday rule guide.

Medigap vs Medicare Advantage for Younger Disabled Beneficiaries

When Medigap is unavailable or unaffordable, Medicare Advantage is the main fallback. The right choice depends on your health, providers, and budget.

In 2026, Medicare Advantage plans have a maximum out-of-pocket limit of $9,250 for services covered under Parts A and B, while Medicare Part D has an out-of-pocket limit of $2,100 before entering catastrophic coverage. Notably, the 2026 in-network MOOP is a $100 reduction from the $9,350 limit that applied in 2025. The MA cap applies only to Part A and Part B services and does not include Part D drug costs. Individual plans can set lower limits, and the average in-network MOOP for Medicare Advantage enrollees in 2026 is about $5,421, with a combined in- and out-of-network average of $9,825.

When Medigap Tends to Win

If you can access reasonably priced Medigap, it is usually the better choice for high-utilization beneficiaries with chronic conditions, frequent specialist visits, or complex care needs. You get nationwide access to any provider who accepts Medicare and predictable cost-sharing.

When Medicare Advantage Tends to Win

Medicare Advantage often wins on monthly cost. Many MA plans charge little or no premium beyond Part B, bundle Part D drug coverage, and add extras like dental, vision, hearing, and transportation. If your providers are in-network and your conditions are well-controlled, MA may be the only option that fits a tight budget.

For a side-by-side decision framework, our switching from Medicare Advantage to Medigap guide explains the trade-offs in detail.

Workarounds in States Without Under-65 Protections

If you live in a state without under-65 Medigap requirements, you still have several paths to meaningful coverage.

1. Look for Voluntary Carriers

Some insurers offer Medigap to under-65 disabled beneficiaries even where state law does not require it. The premiums will reflect medical underwriting, but for healthy applicants the price may still be manageable. Working with an independent broker can help you compare offers across carriers. Our Medicare Supplement underwriting guide covers what to expect in that process.

2. Consider Medicare Advantage as a Bridge

Many disabled beneficiaries use Medicare Advantage as a placeholder until they turn 65 and qualify for guaranteed-issue Medigap. The $9,250 annual in-network out-of-pocket cap limits worst-case spending, and you can switch to Medigap at 65 without underwriting.

3. Apply for Medicaid or a Medicare Savings Program

If your income and assets are limited, full Medicaid can wrap around Medicare and cover most cost-sharing. Medicare Savings Programs (MSPs) help pay your Part B premium and sometimes deductibles and coinsurance. Many disabled beneficiaries qualify and do not know it. Your local SHIP office can screen you for free.

4. Plan Now for the Age-65 Reset

If none of the above produces affordable coverage, plan for what happens at 65. Use the years before then to build a list of providers, document your prescriptions, and identify the Medigap plan letter that fits your needs. Our best Medicare Supplement plans of 2026 overview can help you narrow the field. When the federal open enrollment window opens, you will be ready to lock in standard age-65 rates without medical underwriting.

Frequently Asked Questions

Can I buy a Medicare Supplement policy before age 65?

It depends entirely on your state. About 36 states require insurers to sell at least one Medigap plan to under-65 enrollees with disability, and roughly 26 of those also extend the requirement to ESRD. In states without that requirement, your options range from voluntary carriers using medical underwriting to no Medigap availability at all. Check with your State Insurance Department or SHIP office to see what is available in your area in 2026.

Why are Medigap premiums so much higher for people under 65?

Under-65 disabled enrollees tend to use more medical care on average, and the under-65 risk pool is smaller. In states without rate caps, insurers price accordingly, often charging 1.5 to 2 times the age-65 rate or more. States like Hawaii, Idaho, Oregon, Pennsylvania, Illinois, Indiana, Virginia, and now Nevada (effective 2026) equalize or limit under-65 pricing through specific rate rules.

What happens to my Medigap policy when I turn 65?

When you turn 65 and are enrolled in Part B, federal law gives you a fresh six-month Medigap Open Enrollment Period with guaranteed-issue rights. You can shop the entire Medigap market, choose any plan letter offered in your state, and pay the standard age-65 rate without medical underwriting. Most disabled beneficiaries see a significant premium drop at this milestone, often 30 to 50 percent or more.

Should I pick Medicare Advantage or Medigap if I am under 65 and disabled?

If you can access affordable Medigap and you use a lot of medical services, Medigap usually offers better financial protection and provider choice. If Medigap is unavailable or unaffordable, Medicare Advantage typically becomes the practical choice because of its $9,250 in-network out-of-pocket cap and lower premiums. Compare actual local plans, your providers, and your prescriptions before deciding.

Does Medigap cover prescription drugs for disabled beneficiaries under 65?

No. Medigap plans sold today do not include Part D drug coverage, regardless of age. You will need to enroll in a standalone Part D plan to cover prescriptions, and the rules and enrollment windows for Part D apply the same way to under-65 enrollees as to anyone else. In 2026, Part D out-of-pocket costs are capped at $2,100 annually, up from $2,000 in 2025.