If you are on Medicare in 2026, your costs depend heavily on which part of Medicare you use and how you choose to receive your coverage. Original Medicare — Parts A and B — sets the baseline, but Medicare Advantage plans layer their own cost structures on top. Understanding both is essential before you assume your current coverage is still the best deal for your wallet.
Let's start with Part B, which covers doctor visits, outpatient care, and most preventive services. The standard Part B premium in 2026 is $185.00 per month, deducted automatically from your Social Security check if you receive benefits. That is a $10.30 increase from the $174.70 you paid in 2025. The Part B annual deductible is $257 in 2026, after which Medicare typically pays 80% of approved costs and you pay the remaining 20% — with no out-of-pocket cap under Original Medicare alone. That 20% coinsurance is why many beneficiaries carry either a Medigap supplemental policy or enroll in Medicare Advantage, which bundles Parts A and B (and usually Part D drug coverage) into a single plan with defined cost-sharing.
If your income is above certain thresholds, you will pay more for Part B — and for Part D drug coverage — through what Medicare calls Income-Related Monthly Adjustment Amounts, or IRMAA. In 2026, IRMAA surcharges kick in for individuals with modified adjusted gross income above $106,000 (or $212,000 for married couples filing jointly). At the highest income tier, Part B can cost over $600 per month per person. IRMAA is based on your tax return from two years prior, so your 2024 income determines your 2026 surcharge. If your income has dropped significantly since then — due to retirement, the death of a spouse, or other life events — you can appeal your IRMAA determination directly with Social Security using Form SSA-44.
Part A, which covers inpatient hospital stays, skilled nursing facility care, and hospice, is premium-free for most beneficiaries who worked at least 40 quarters (10 years) in Medicare-covered employment. But Part A is far from free once you use it. The inpatient hospital deductible in 2026 is $1,676 per benefit period — not per year. A benefit period begins the day you are admitted and ends after you have been out of the hospital or skilled nursing facility for 60 consecutive days. If you are readmitted after that 60-day gap, a new $1,676 deductible applies. For stays beyond 60 days, you also pay daily coinsurance: $419 per day for days 61–90, and $838 per day for lifetime reserve days beyond that.
Medicare Advantage plans — the private insurance alternative to Original Medicare — must cover everything Original Medicare covers, but they replace Medicare's cost structure with their own. In 2026, CMS requires all Medicare Advantage plans to cap your annual out-of-pocket costs at no more than $9,350 for in-network services. Some plans set that cap considerably lower, which matters enormously if you have a serious illness or need frequent care. Many Medicare Advantage plans still advertise $0 monthly premiums, though you continue paying your Part B premium regardless. The real cost of a Medicare Advantage plan lives in its copays, coinsurance, and network restrictions — a $0-premium plan with high specialist copays and a narrow network may cost you far more than a plan with a modest premium and lower cost-sharing.
Part D prescription drug coverage costs also vary widely in 2026. A significant change taking full effect in 2026 is the $2,000 annual out-of-pocket cap on Part D drug costs — a landmark shift under the Inflation Reduction Act. Once you have paid $2,000 out of pocket for covered drugs in a calendar year, your plan covers 100% of additional costs for the rest of the year. This cap replaces the old catastrophic coverage threshold and eliminates the coverage gap (the so-called donut hole) that many beneficiaries struggled with for years. If you take expensive specialty medications, this change may substantially reduce what you pay annually.
For beneficiaries with limited income and assets, Extra Help — also called the Low Income Subsidy — can dramatically reduce Part D costs, including premiums, deductibles, and copays. In 2026, individuals with income up to roughly 150% of the federal poverty level may qualify. You can apply through Social Security or your State Medicaid office. Separately, Medicare Savings Programs administered by each state can help pay your Part B premium, deductible, and coinsurance if you meet income and asset limits — these programs are significantly underutilized, and millions of eligible beneficiaries are not enrolled.
The Annual Enrollment Period — October 15 through December 7 each year — is your primary window to switch Medicare Advantage plans, drop Advantage and return to Original Medicare, or change Part D drug plans. Changes take effect January 1. If you missed that window, the Open Enrollment Period runs January 1 through March 31, during which Medicare Advantage enrollees can switch to a different Advantage plan or return to Original Medicare (with a Part D plan). Use Medicare's Plan Finder tool at medicare.gov to compare actual plan costs based on your specific medications and preferred doctors — the difference between plans in your zip code can easily run into thousands of dollars per year.
