Medicare costs include monthly premiums, deductibles, copays, and prescription costs that vary based on the coverage you choose. The best way to avoid surprises is to estimate your total annual cost based on your actual healthcare use and medication list, not just the monthly premium.
A complete picture closes the gap between what you expected to pay and what you actually owe. This guide walks through every Medicare cost category, how to estimate your real annual cost, and how Medicare fits into your overall retirement plan.
Key Takeaways
- Monthly premiums are only the starting point, not the full cost of Medicare
- Drug coverage can be one of the largest and most variable cost categories depending on what you take
- Your total annual cost including all components matters more than any single line item
- Medicare costs interact with your retirement income plan in ways that deserve annual attention
What Are the Main Medicare Cost Categories?
Medicare has four main cost categories: premiums, deductibles and cost-sharing, out-of-pocket maximums, and prescription costs. Each one affects your total annual spending in a different way, and understanding them together gives you the clearest picture.
What Are Medicare Premiums?
Medicare premiums come from multiple sources, and the total depends on your coverage structure and income level. They are the most predictable part of your Medicare cost picture.
Part A, which covers inpatient hospital care, is premium-free for most beneficiaries who worked and paid Medicare taxes for at least 10 years. Those who do not meet the work history threshold can pay up to $518 per month in 2026.
Part B, which covers outpatient care and physician services, has a standard premium of $202.90 per month in 2026. Higher-income beneficiaries pay more through IRMAA surcharges, which begin in 2026 for single filers above $109,000 and joint filers above $218,000. Because IRMAA is based on income from two years prior, your 2024 income determines your 2026 Part B premium.
Part D prescription drug plans carry their own premium that varies by plan and location. The projected average Part D premium in 2026 is about $34.50 per month, though specific plans run higher or lower. Higher-income beneficiaries also pay IRMAA surcharges on Part D premiums.
Retirees who add a Medigap policy to Original Medicare pay an additional monthly premium that commonly ranges from $100 to $250 or more, depending on plan type, state, and insurer. Medicare Advantage plans charge their own premium on top of Part B, with many plans offering a zero-dollar additional premium.
Adding all premium components produces a total monthly figure that can run from under $300 per month for a Medicare Advantage enrollee with no IRMAA exposure to $600 or more for an Original Medicare beneficiary with Medigap, IRMAA surcharges, and a standalone Part D plan.
What Are Deductibles and Cost-Sharing in Medicare?
Deductibles and cost-sharing represent what you pay at the time of care, and they accumulate throughout the year based on how much healthcare you use.
Medicare Part A has a hospital inpatient deductible of $1,736 per benefit period in 2026. This deductible applies per benefit period, not per calendar year, so a second hospital admission in the same year following 60 or more days of discharge can trigger a second deductible. Days 61 through 90 of a hospital stay carry daily coinsurance of $434, and days beyond 90 use lifetime reserve days at higher daily coinsurance.
Medicare Part B has an annual deductible of $283 in 2026. After that, Medicare pays 80% of covered services and the beneficiary pays 20% coinsurance, with no annual out-of-pocket maximum under Original Medicare alone. For a beneficiary with frequent specialist visits or outpatient procedures, that 20% coinsurance can add up quickly.
Medigap policies cover some or all of these deductibles and coinsurance amounts depending on the plan letter chosen. Plan G, the most common choice for new enrollees, covers everything except the Part B deductible, leaving the beneficiary responsible for $283 per year plus the monthly premium. Plan N covers most cost-sharing with small copays for some office and emergency room visits.
Medicare Advantage plans set their own deductibles and copay structures, which vary by plan. They are required to cap annual in-network out-of-pocket costs at a federally mandated maximum of $9,250 in 2026, though most plans set lower caps.
How Do Out-of-Pocket Maximums Work?
An out-of-pocket maximum is the most you can be required to pay for covered care in a year. Original Medicare without supplemental coverage has no annual out-of-pocket maximum, which means a beneficiary with significant medical needs could face unlimited cost-sharing in a single year.
This is why most Original Medicare enrollees add either a Medigap policy or choose a Medicare Advantage plan, both of which limit annual exposure. Medigap Plan G, for example, effectively caps most cost-sharing at the $283 Part B deductible since the policy covers the rest. Medicare Advantage plans cap in-network out-of-pocket spending at the plan’s defined maximum, which cannot exceed $9,250 in 2026.
The most important question for stress-testing your healthcare budget is not whether you can afford typical costs. It is whether you can absorb the maximum cost-sharing in a year with a major health event without disrupting your retirement income plan.
How Do Medicare Prescription Costs Work?
Part D prescription costs depend on the plan’s formulary, the cost tier of each drug, the pharmacy used, and your total annual drug spending compared to the $2,100 out-of-pocket cap in 2026.
In the initial coverage phase, you pay copays or coinsurance based on the tier assigned to each medication. Generic drugs in Tier 1 typically carry copays of just a few dollars. Preferred brand drugs in Tier 3 commonly run $40 to $50 per fill. Non-preferred and specialty drugs in higher tiers carry larger copays or coinsurance percentages.
Once your total out-of-pocket drug spending reaches $2,100 in 2026, the plan pays 100% of covered drug costs for the rest of the year. This cap, which is significantly lower than in prior years, offers meaningful protection for retirees taking expensive specialty medications. Medicare Advantage plans with integrated drug coverage follow similar tier and cap structures.
How Do You Estimate Your Real Annual Medicare Cost?
You estimate your real annual Medicare cost by modeling three scenarios: a healthy year, a typical year, and a high-usage year. This produces a planning figure that reflects what you are likely to pay and what you could pay if a major health event occurs.
What Are the Best-Case, Typical, and High-Usage Scenarios?
The best-case scenario reflects a healthy year with mostly routine care, including a few primary care visits, standard labs, a specialist visit or two, and no unexpected procedures. Your annual cost in this case is roughly your premiums plus modest cost-sharing and drug costs.
The typical scenario reflects average use for someone of your age and health, including regular specialist visits for managed conditions, ongoing prescriptions, periodic imaging or labs, and perhaps one minor procedure or hospitalization. This scenario produces a more realistic cost estimate because it accounts for the care you actually use.
The high-usage scenario reflects a major health event such as surgery, an extended hospitalization, or a new condition that requires new specialists and medications. This scenario tests whether your retirement income plan can absorb the cost-sharing maximum plus any uncovered expenses without creating financial hardship.
Building your retirement healthcare budget around the typical scenario, with a buffer that can absorb the high-usage scenario, gives you a realistic and defensible planning figure.
Should You Plan for Travel and Out-of-Network Care?
Yes. For Medicare Advantage enrollees, out-of-network care can be much more expensive or not covered at all depending on the plan type. If you travel often, spend time in multiple states, or rely on a specialist outside your plan’s network, build that cost into your estimate. A single out-of-network specialist visit or urgent care episode while traveling can add hundreds of dollars to your annual total.
For Original Medicare enrollees, any Medicare-accepting provider is in-network nationwide, which removes geographic cost variability for covered services. Services Medicare does not cover, such as routine dental, vision, or hearing care, still carry the same out-of-pocket exposure wherever you receive them.
How Do Medicare Costs Fit Into Retirement Planning?
Medicare costs interact with Social Security timing, annual plan changes, and your overall income strategy. Treating Medicare as a connected piece of your retirement income plan instead of a standalone expense produces a stronger long-term picture.
How Does Social Security Timing Affect Medicare Costs?
The timing of your Social Security claim affects when and how your Medicare premiums are collected. Once you start Social Security, Medicare Part B premiums are automatically deducted from your monthly payment. Before you start Social Security, Medicare bills you directly for Part B premiums on a quarterly basis.
IRMAA surcharges are also deducted from Social Security payments when applicable, which means a higher-income year can reduce the net Social Security benefit you receive two years later. For retirees who delay Social Security to maximize the benefit, understanding how Medicare billing works in the gap years prevents administrative surprises.
For retirees who retire before age 65 and delay Medicare through employer coverage or a Special Enrollment Period, the gap years also carry their own cost structure. Bridge coverage through COBRA, marketplace plans, or a spouse’s employer plan represents a separate and often substantial cost that belongs in the retirement plan.
How Should You Plan for Annual Review Season?
Plan to review your Medicare coverage every year during the Annual Open Enrollment Period from October 15 to December 7. Plan premiums, formularies, copay structures, and networks can all change on January 1, and an annual review keeps you ahead of those shifts.
The Annual Notice of Change, sent by your plan each fall, discloses what is changing in your current coverage. This notice deserves a careful read even in years when you plan to stay in your current coverage, because formulary changes that move your medications to a higher tier or network changes that affect your doctors can quietly increase your annual cost.
Build the Annual Open Enrollment review into your standing financial planning calendar alongside your Retirement Planning Checklist (5 Years Before You Retire) and other annual touchpoints.
How Do Income Changes Affect Medicare Costs?
Because IRMAA surcharges are based on income from two years prior, any year with unusually high income creates Medicare cost implications that arrive two years later. Large Roth conversions, home sales, business income events, significant capital gains, or the first year of Required Minimum Distributions can all push income above IRMAA thresholds and raise Medicare premiums in a future year.
Anticipating these implications before they happen gives you the chance to model scenarios and adjust timing. For example, knowing that a planned Roth conversion will push income into a higher IRMAA tier can help you decide whether to reduce the conversion, split it across years, or accept the surcharge as part of the trade-off.
Your financial advisor and CPA should be jointly aware of planned income events that could affect IRMAA, so the Medicare cost impact is factored in alongside the tax and investment implications. Coordinated tax planning and preparation helps make this kind of multi-year view possible.
FAQs
For a typical Medicare beneficiary on original Medicare with Medigap and a Part D plan, monthly costs include the Part B premium of $202.90 in 2026, a Medigap plan premium that commonly ranges from $100 to $250 or more depending on plan type and location, and a Part D plan premium that averages around $34.50. Combined, this structure commonly produces total monthly premiums of $350 to $500 or more before IRMAA surcharges. For Medicare Advantage enrollees without IRMAA, total monthly premiums may be lower, often $203 to $300, since many Advantage plans have zero-dollar additional premiums and drug coverage is bundled. IRMAA surcharges for higher-income beneficiaries add to either structure based on the applicable income bracket.
Start with your expected healthcare utilization based on your actual health conditions and care pattern. Estimate the number of primary care visits, specialist visits, lab or imaging studies, and any planned procedures. Apply the copay or coinsurance amount from your specific plan to each type of service. Add your estimated annual drug costs from Medicare's Plan Finder using your actual medication list. Sum the results and add a buffer of 20% to 25% for unpredictable expenses. Compare your estimate to your plan's out-of-pocket maximum and confirm that your retirement income plan can absorb that maximum if a significant health event occurs.
Not automatically. Original Medicare, Parts A and B, does not include prescription drug coverage. To get drug coverage on original Medicare, you must enroll in a separate Part D plan. Most Medicare Advantage plans include integrated prescription drug coverage, called MA-PD plans, which eliminates the need for a separate Part D plan. Some Medicare Advantage plans do not include drug coverage, which would require a separate Part D enrollment. When evaluating any plan, confirm whether drug coverage is included, and if so, verify that your specific medications are covered at acceptable tiers on that plan's formulary.
Mid-year prescription changes can affect your out-of-pocket drug costs in the current year and may make a different plan more cost-effective at the next Annual Open Enrollment Period. If a new medication is not on your current plan's formulary, you may be able to request a formulary exception, try a formulary alternative as directed by your prescriber, or pay out-of-pocket until the next enrollment period. If you lose access to a plan that covers your current medications because the plan is discontinued, a Special Enrollment Period may allow you to switch mid-year. Document prescription changes throughout the year and use them as inputs when comparing plans during the fall open enrollment period.
For Medicare Advantage plans, verify the current in-network status of every physician, specialist, and hospital you see or expect to use before enrolling. Call the plan directly or check the plan's online directory, confirming current participation for the specific calendar year rather than relying on a prior year's directory. Ask each provider's billing office directly whether they currently participate in the plan. Providers can leave networks, so confirmation at the time of enrollment is more reliable than directory information that may not be fully current. For original Medicare with Medigap, any Medicare-accepting provider is accessible without network restrictions, which eliminates this verification requirement.
Yes. IRMAA surcharges on Part B and Part D premiums are recalculated annually based on your modified adjusted gross income from two years prior. A year with significantly higher income from any source, including retirement account withdrawals, investment gains, home sales, or business income, can move you into a higher IRMAA bracket two years later. Conversely, if your income drops significantly after a qualifying life event, you can request that the Social Security Administration use more current income information by filing Form SSA-44. Changes in income also affect how much of your Social Security benefit is subject to federal income tax, which interacts with your overall healthcare budget through the IRMAA channel.
Planning around premium alone and ignoring the cost-sharing structure is the most common and most consequential Medicare budgeting mistake. A plan with a zero-dollar monthly premium and an out-of-pocket maximum of $8,000 carries the same potential annual cost liability as a plan with a $250 monthly premium and a $5,000 out-of-pocket maximum, depending on how much care you use. Failing to model actual annual cost under different utilization scenarios means the budget is built on an assumption that may bear no relationship to what you actually spend. The second most common mistake is not reviewing the plan annually, allowing formulary changes, network shifts, and premium increases to take effect without a deliberate decision about whether to stay or switch.
Yes, without exception. Plan details change every January 1, and your own healthcare needs change over time. The Annual Open Enrollment Period from October 15 to December 7 is the right time to review your current coverage, compare it against available alternatives, and make a deliberate choice about whether to stay or switch. Read the Annual Notice of Change your plan sends before open enrollment. Run your current medications through Medicare's Plan Finder to confirm coverage and costs. Verify that your doctors remain in-network. And update your retirement healthcare budget to reflect any premium changes, formulary updates, or cost-sharing adjustments that will apply in the coming year. This annual review takes a few hours and can save hundreds to thousands of dollars annually if it prompts a well-timed plan change.
Build a Healthcare-Ready Retirement Plan
Healthcare is one of the most predictable and most under-planned expenses in retirement. Knowing your real annual Medicare cost, not just your monthly premium, gives you the kind of confidence that lets you focus on the rest of life.
At Bauman Wealth Advisors, our Return on Life® process connects Medicare costs with your income, tax, and investment plan so every part works together. We help you build a realistic annual healthcare budget, anticipate IRMAA implications, and make sure your plan reflects what Medicare actually costs at your income level and health situation.
If you want to make sure your Medicare costs are properly estimated and integrated into your retirement income plan, schedule a complimentary consultation with a CFP® professional at Bauman Wealth Advisors or meet our team to start the conversation. We do money. You do life.
