Medicare costs most enrollees a baseline of $202.90 per month in 2026 — but your actual bill depends on which parts you're enrolled in, whether you have a supplemental plan, and critically, how much income you reported two years ago.
This guide walks through every layer of Medicare's monthly cost structure using the official 2026 numbers published by the Centers for Medicare & Medicaid Services (CMS). As with everything in Medicare, these figures change each year, so treat this as a planning snapshot, not a permanent answer.
For most Medicare beneficiaries in 2026:
The floor for a typical beneficiary enrolled in Parts A, B, and D is roughly $237/month before any supplemental coverage. That number rises if your income exceeds certain thresholds.
For most people, Medicare Part A costs $0 per month. You qualify for premium-free Part A if you or your spouse worked and paid Medicare taxes for at least 40 quarters (10 years).
If you don't meet that threshold, you'll pay a monthly premium — either $311 or $565 in 2026, depending on how many qualifying quarters you have. The Part A hospital deductible in 2026 is $1,736 per benefit period, not per year. After 60 days in the hospital, daily coinsurance kicks in at $434 per day (days 61–90) and $868 per day for lifetime reserve days.
The standard Part B premium in 2026 is $202.90 per month. That's up $17.90 from $185 in 2025 — roughly a 10% increase. The annual Part B deductible is $283.
After meeting your deductible, Medicare pays 80% of approved costs and you pay the remaining 20% — with no out-of-pocket cap unless you have a Medigap or Medicare Advantage plan.
Part B covers:
Part D (prescription drug coverage) premiums vary by plan and carrier. The national average standalone Part D premium in 2026 is approximately $34.50/month, but individual plans range widely — some as low as $10/month and others considerably higher.
You choose your Part D plan from options offered in your zip code. Coverage, formularies, and costs differ, so comparing plans during Annual Enrollment (October 15–December 7 each year) is important.
IRMAA — the Income-Related Monthly Adjustment Amount — is a surcharge added to your Part B and Part D premiums if your income exceeds certain thresholds. It affects roughly 8% of Medicare beneficiaries.
Here's the key detail: Medicare uses your income from two years prior. Your 2026 Medicare premium is based on your 2024 tax return. If your 2024 Modified Adjusted Gross Income (MAGI) was above $109,000 (single) or $218,000 (married filing jointly), you'll pay more.
Important: IRMAA is a "cliff" system. Earning just $1 over a bracket threshold triggers the full surcharge for that entire tier — potentially adding over $1,000 per year per person. This is one reason income planning before and during retirement matters so much.
Yes — every single year. CMS typically announces the following year's premiums, deductibles, and IRMAA brackets in November. The numbers in this article reflect the 2026 figures confirmed by CMS on November 14, 2025.
Historical trends show Part B premiums and deductibles have increased most years. The 2026 Part B premium jumped nearly 10% over 2025. IRMAA income brackets are adjusted for inflation annually (with one exception: the top bracket is frozen until at least 2028).
A financial planner helps you anticipate and manage Medicare costs — not just react to them. At Oak Road Wealth Management in Lee's Summit, Missouri, we help clients in the Kansas City area think through:
Medicare is not a set-it-and-forget-it program. The costs are real, they change annually, and they interact with your tax situation in ways that catch many retirees off guard.
The standard Part B premium is $202.90 per month in 2026, up from $185 in 2025. The annual Part B deductible is $283. These figures are set by CMS and apply to most Medicare beneficiaries. Higher-income enrollees pay more through IRMAA surcharges.
No. Most people pay the standard $202.90/month for Part B, but your premium increases if your 2024 MAGI exceeded $109,000 (single) or $218,000 (married filing jointly). Part D plan premiums also vary by carrier and plan. Medicare costs are income-dependent and plan-dependent.
IRMAA is an income-based surcharge added to your Part B and Part D premiums. It applies when your Modified Adjusted Gross Income from two years prior exceeds CMS-set thresholds. In 2026, the surcharge starts for individuals earning over $109,000 in 2024. It is calculated on a five-tier scale, with total Part B premiums ranging from $202.90 to $689.90/month depending on income.
No. Medicare premiums, deductibles, and IRMAA brackets are adjusted every year, typically announced each November for the following year. The figures in this article reflect 2026 numbers. We recommend reviewing your Medicare costs annually, especially if your income changes significantly.
A financial planner cannot change Medicare's published rates, but strategic income planning can help you stay within lower IRMAA brackets. Decisions about Roth conversions, RMD timing, capital gains, and Social Security claiming can all affect your MAGI — and therefore your Medicare premium — two years down the road. This is a core part of retirement income planning at Oak Road Wealth Management.
You may be able to request a redetermination through Social Security if you've experienced a qualifying life-changing event — such as retirement, divorce, or the death of a spouse — that reduced your income. Contact Social Security directly or work with your financial advisor to explore this option.
This article is for informational and educational purposes only. It does not constitute personalized financial, tax, or legal advice. Medicare rules, premiums, and IRMAA thresholds change each year. Consult a qualified financial professional for guidance specific to your situation.
Oak Road Wealth Management is a financial planning firm serving Lee's Summit, Missouri and the greater Kansas City area.
Written by Andrew Matz, Financial Planner at Oak Road Wealth Management.
