Every fall, millions of Americans face the same question during Medicare’s Annual Enrollment Period: is Medicare Advantage actually cheaper than Original Medicare, or does it just look that way on paper? The honest answer is “it depends on your health” — and here’s exactly how the costs break down for 2026.

Original Medicare vs. Medicare Advantage: The Basic Difference

Original Medicare (Part A + Part B) is the government-run, fee-for-service program. You can see any provider in the country who accepts Medicare, with no network restrictions.

Medicare Advantage (Part C) is a bundle of private insurance plans, approved by Medicare, that combine Part A and Part B coverage — often with Part D drug coverage and extras like dental or vision built in. Most Medicare Advantage plans use a provider network, similar to an HMO or PPO.

2026 Cost Comparison at a Glance: 7 Things to Know

1. The standard Part B premium for 2026 is $202.90/month, and it applies whether you stick with Original Medicare or enroll in Medicare Advantage — everyone with Part B pays it.
2. Original Medicare has no annual out-of-pocket cap unless you add a Medigap supplemental policy — a serious hospitalization could cost thousands with no ceiling.
3. Medicare Advantage plans are required to cap in-network out-of-pocket costs. For 2026, CMS sets the maximum allowed limit at $9,250, though the average in-network cap across plans runs closer to $6,312.
4. Many Medicare Advantage plans advertise $0 premiums; across all plans, the average added premium in 2026 is roughly $14/month.
5. Original Medicare requires a separate Part D drug plan (its own premium) and, for predictable costs, often a Medigap policy — both are extra monthly bills on top of Part B.
6. Medicare Advantage plans frequently bundle dental, vision, and hearing benefits that Original Medicare doesn’t cover at all.
7. Provider network restrictions under Medicare Advantage vs. the any-provider flexibility of Original Medicare + Medigap can matter a lot for real-world cost, especially if you travel frequently or want to keep a specific doctor.

Side-by-Side Cost Comparison Table

Cost Factor	Original Medicare (+ Medigap)	Medicare Advantage
Part B premium (2026)	$202.90/month (standard)	$202.90/month (standard)
Plan premium	Medigap premium varies by plan/state	Often $0; average added premium ~$14/month
Drug coverage	Separate Part D plan required	Usually bundled in
Annual out-of-pocket cap	None on Original Medicare alone; Medigap can cap costs	Required by CMS; 2026 max $9,250, average ~$6,312
Provider network	Any provider accepting Medicare, nationwide	Usually limited to plan network
Extra benefits (dental/vision/hearing)	Not covered	Often included

Which Is Cheaper If You’re Healthy?

If you rarely see a doctor beyond routine checkups, Medicare Advantage’s low or $0 premiums usually mean lower monthly costs. You’re less likely to hit the out-of-pocket cap, so the network restrictions and prior-authorization rules matter less in practice.

Which Is Cheaper If You Have Ongoing Health Needs?

If you see specialists often, manage a chronic condition, or expect a hospital stay, Original Medicare paired with a Medigap policy can work out cheaper overall — even though you’re paying a Medigap premium every month — because it largely eliminates surprise out-of-pocket bills. Check our site’s separate breakdown of Medigap Plan G vs. Plan N for how those premium and coverage trade-offs compare.

A Simple Cost Example

Consider two retirees who both pay the $202.90 standard Part B premium in 2026:

• Retiree A (Medicare Advantage, $0 premium plan): Pays $202.90/month most of the year. After an unexpected surgery and several specialist visits, out-of-pocket costs climb until hitting the plan’s in-network cap — let’s say $6,000 for the year. Total annual cost: roughly $2,435 (Part B) + $6,000 (out-of-pocket) = about $8,435.
• Retiree B (Original Medicare + Medigap Plan G, ~$160/month premium): Pays $202.90 (Part B) + $160 (Medigap) = $362.90/month, or about $4,355/year, with the same surgery largely covered by Medigap after the annual Part B deductible. Total annual cost: roughly $4,355–$4,700, depending on the deductible.

In a high-medical-use year, the predictable Medigap route can end up costing less overall than a Medicare Advantage plan’s variable out-of-pocket exposure — this is exactly why “cheaper monthly premium” and “cheaper overall” aren’t the same thing.

Hidden Costs to Watch in 2026

• IRMAA income surcharges: Higher-income beneficiaries pay extra for Part B and Part D regardless of which path they choose — see our separate IRMAA guide for the 2026 income brackets.
• Prior authorization: Medicare Advantage plans can require prior approval before covering certain procedures or equipment, which Original Medicare generally does not require.
• Out-of-network or out-of-state emergency care: Medicare Advantage plans may charge more, or require specific steps, for care received outside their network or service area — a real concern for snowbirds and frequent travelers.

How to Decide: A Quick Checklist

• If you rarely visit doctors and want the lowest monthly bill → Medicare Advantage is usually the more budget-friendly starting point.
• If you have a chronic condition, see multiple specialists, or want predictable costs → Original Medicare + Medigap is often the safer long-term choice.
• If keeping your current doctors matters more than saving on premiums → check whether they’re in-network for any Medicare Advantage plan you’re considering, or lean toward Original Medicare’s nationwide flexibility.
• If you travel often or split time between states → Original Medicare + Medigap avoids network and service-area headaches.
• If budget is tight right now and you’re generally healthy → a $0-premium Medicare Advantage plan can free up monthly cash flow, as long as you understand the out-of-pocket cap you’re accepting in exchange.

When and How to Switch

The main window to change plans is the Annual Enrollment Period, October 15 – December 7, when you can switch between Original Medicare and Medicare Advantage, or change Medicare Advantage plans, for coverage starting January 1. There’s also a Medicare Advantage Open Enrollment Period, January 1 – March 31, for those already enrolled in a Medicare Advantage plan who want to make one additional change.

Use the Medicare Plan Finder tool on Medicare.gov to compare specific plans, premiums, and networks available in your ZIP code before switching.

Frequently Asked Questions

Can I switch from Medicare Advantage back to Original Medicare anytime?

Not anytime — generally only during the Annual Enrollment Period, the Medicare Advantage Open Enrollment Period, or a qualifying Special Enrollment Period.

Does Medicare Advantage cost more than Original Medicare overall?

It depends on your health needs in a given year. Monthly premiums are usually lower with Medicare Advantage, but total annual costs can end up higher if you need significant care and hit the out-of-pocket maximum.

Do I need Medigap if I have Medicare Advantage?

No — Medigap policies are designed to work alongside Original Medicare, not Medicare Advantage. You generally cannot use a Medigap policy to cover Medicare Advantage cost-sharing.

This article is for general information only and is not medical or insurance advice. Costs, caps, and premiums change annually — always confirm current figures on Medicare.gov or with a licensed insurance agent before enrolling.