How $0-Premium Medicare Advantage Plans Actually Work

What "$0 premium" really means

A zero-premium Medicare Advantage plan is a Part C plan whose monthly plan premium — the amount the private insurer would otherwise charge on top of Original Medicare — is set at $0. It does not mean you have no Medicare costs at all.

Everyone enrolled in Medicare Advantage must keep paying the standard Part B premium, which is $202.90 per month for most enrollees in 2026 (higher earners pay more through IRMAA). Some plans give back part of this premium, but that is a specific plan feature, not a guarantee — it varies by plan.

These plans are common. According to federal data for 2026, about two-thirds of Medicare Advantage plans that include drug coverage carry no separate monthly premium, and roughly 60% of Medicare Advantage enrollees are expected to be in a $0-premium plan.

How a plan can charge $0 and still pay claims

Medicare pays each Medicare Advantage insurer a fixed, risk-adjusted amount every month for each person enrolled, drawn from the same Part A and Part B trust funds that finance Original Medicare. Insurers bid against a regional benchmark to provide at least the coverage Original Medicare offers.

When an insurer's bid comes in below the benchmark, Medicare shares part of the difference as a 'rebate' the plan must spend on enrollee benefits — for example, lowering or eliminating the plan premium, reducing cost-sharing, or adding extras like dental, vision, or hearing coverage. Tightly managed provider networks and prior-authorization rules help insurers keep bids low enough to offer a $0 premium.

• Medicare pays the plan a set monthly amount per enrollee.
• Plans bid below a benchmark and earn rebates to fund extra benefits.
• Network limits and care management offset the absence of a premium.
• The federal average Medicare Advantage plan premium is projected at about $14.00/month in 2026, down from $16.40 in 2025 — but many plans set it to $0.

What you still pay on a $0-premium plan

With no monthly premium, an insurer recovers costs mainly through cost-sharing when you use care. The specific amounts are set by each plan, so two $0-premium plans can have very different out-of-pocket exposure.

• Part B premium: $202.90/month for most people in 2026 (still required).
• Copays and coinsurance for doctor visits, hospital stays, labs, and imaging — amounts vary by plan.
• An annual in-network out-of-pocket maximum that, by federal rule, every Medicare Advantage plan must include (a ceiling CMS sets each year; many plans choose a lower limit). Original Medicare has no such cap.
• Prescription drugs: if the plan includes Part D, your covered out-of-pocket drug spending is capped at $2,100 for 2026, separate from the medical out-of-pocket maximum.
• Out-of-network care, which may cost more or not be covered at all depending on whether the plan is an HMO or PPO.

Trade-offs to weigh before choosing one

A $0 premium lowers your fixed monthly cost, which can be attractive on a tight budget. The trade-off is that you take on more variable cost and more rules when you actually need care.

Whether a $0-premium plan is a good fit depends on your health, your providers, and your prescriptions — not on the premium alone. A plan with a modest premium but lower copays or a lower out-of-pocket maximum can cost less overall for someone who uses a lot of care.

• Check that your doctors and hospitals are in the plan's network.
• Confirm your prescriptions are on the plan's formulary and check the tier.
• Compare the in-network out-of-pocket maximum, not just the premium.
• Review referral and prior-authorization requirements for specialists.
• Look at copays for the services you actually expect to use.

How it compares to Original Medicare plus Medigap

Original Medicare (Part A and Part B) lets you see any provider that accepts Medicare nationwide, but it has no annual out-of-pocket limit. In 2026, Part A has a $1,736 deductible per benefit period, and Part B has a $283 annual deductible followed by 20% coinsurance on most services. Many people add a Medigap policy and a stand-alone Part D plan to fill those gaps — which means paying additional premiums.

A $0-premium Medicare Advantage plan bundles hospital, medical, and usually drug coverage with a built-in out-of-pocket cap and no extra plan premium, but it limits you to a network and adds plan rules. Neither approach is universally better; the right choice depends on how you weigh predictable costs and provider freedom against a lower monthly bill.