Medicare 101
Medicare Costs Breakdown
Understanding what Medicare actually costs makes the whole system less intimidating. In plain terms: Part A is usually premium-free, Part B has a standard monthly premium (higher for upper incomes through IRMAA), and Part D and Medicare Advantage premiums vary by plan. For 2026, Part D has a $615 deductible and caps your out-of-pocket drug costs at roughly $2,100. This page breaks down the pieces so you can see how they add up for your situation. (CMS PY2026; verify current figures on Medicare.gov.)
The premiums you'll pay
Most people pay nothing for Part A because they earned premium-free coverage through about 10 years of Medicare taxes. Part B carries a standard monthly premium set by the government each year. On top of that, any plan you choose — a Part D drug plan, a Medicare Supplement, or a Medicare Advantage plan — may have its own premium, and some Advantage plans have a $0 plan premium. So your monthly cost is the Part B premium plus whatever your chosen coverage adds. (Verify current figures on Medicare.gov.)
Deductibles and cost-sharing
Beyond premiums, you have deductibles — the amount you pay before coverage kicks in — and ongoing cost-sharing. Part A has a deductible tied to hospital stays. Part B has its own annual deductible, after which you typically pay a share (often 20%) of approved costs under Original Medicare. Part D plans have a drug deductible — the 2026 standard is $615, though some plans set it lower. Medicare Advantage plans use copays instead and add a yearly out-of-pocket maximum. These are the numbers that actually move your total cost, so they matter more than premium alone. (CMS PY2026; verify current figures on Medicare.gov.)
IRMAA: when higher incomes pay more
IRMAA — the Income-Related Monthly Adjustment Amount — is a surcharge added to your Part B and Part D premiums if your income is above set thresholds. It's calculated from your modified adjusted gross income (MAGI) on the tax return from two years prior, so your 2026 surcharge looks back at your 2024 income. If your income has since dropped due to a life event like retirement, you can ask Social Security to reconsider. Most people don't pay IRMAA, but high earners should plan for it. (Verify current figures on Medicare.gov.)
The 2026 Part D deductible and $2,100 cap
Two Part D numbers shape your 2026 drug costs. First, the standard deductible is $615 — what you pay before the plan shares costs, though some plans set it lower, around $300 to $350. Second, once your out-of-pocket spending on covered drugs reaches roughly $2,100, you pay $0 for covered drugs the rest of the year, and the old "donut hole" gap is gone. For anyone on expensive medications, that cap turns an unpredictable bill into a known ceiling — a key figure when comparing the drug coverage in the plans we offer. (CMS PY2026; verify current figures on Medicare.gov.)
Why premium alone is the wrong place to shop
With about 22 Medicare plans in Minnehaha County and 28 in Sioux County, Iowa (CMS PY2026; verify current plans on Medicare.gov), it's tempting to sort by premium and pick the lowest. That's usually a mistake. A $0-premium plan can carry copays, a drug deductible, and out-of-pocket exposure that make it cost more overall than a plan with a modest premium. What actually drives your total is the mix of premium, deductibles, copays, your drug tiers, and the out-of-pocket cap. We compare that full picture rather than the headline premium.
Sioux Falls area: mapping your real costs
The numbers above are the framework; your actual total depends on your income (for IRMAA), your prescriptions, your doctors, and which path you choose. For residents across the Sioux Falls area and Siouxland, we map expected costs before you enroll — the Part B premium, any plan premium, the $615 Part D deductible, copays, and your likely drug spending against that $2,100 cap — so there are no surprises. Seeing the full picture side by side often makes the right choice between the plans we offer obvious. (CMS PY2026; verify current figures on Medicare.gov.)
Questions, answered
What is IRMAA?
IRMAA, the Income-Related Monthly Adjustment Amount, is a surcharge added to your Part B and Part D premiums when your income is above certain thresholds. It's based on your modified adjusted gross income from the tax return two years prior — so 2026 surcharges look at 2024 income. Most people don't pay it. If your income recently dropped because of retirement or another life event, you can ask Social Security to reconsider. We can estimate whether IRMAA is likely to apply to you. (Verify current figures on Medicare.gov.)
How much does Medicare cost per month in 2026?
It varies by person. Part A is usually $0 if you earned premium-free coverage. Part B has a standard monthly premium set each year, plus an IRMAA surcharge for higher incomes. Then any plan you add — Part D, a Medicare Supplement, or a Medicare Advantage plan — has its own premium, though some Advantage plans charge $0. So your monthly total is the Part B premium plus your chosen coverage. We map your specific numbers before you enroll. (Verify current figures on Medicare.gov.)
What is the Part D out-of-pocket cap for 2026?
For 2026, Part D limits what you pay out of pocket for covered prescription drugs to roughly $2,100 per year. Once you hit that ceiling, covered drugs cost you $0 for the rest of the year, and the old "donut hole" coverage gap no longer applies. It's significant protection for anyone on costly medications, turning an open-ended drug bill into a predictable maximum. We factor this cap in when comparing the drug coverage in the plans we offer. (CMS PY2026; verify current figures on Medicare.gov.)
What is the Part D deductible for 2026?
The 2026 standard Part D deductible is $615 — the amount you pay yourself before the plan begins sharing your drug costs. Some plans set it lower, often around $300 to $350, or waive it on certain drug tiers. After you meet the deductible, you pay a share of costs until your out-of-pocket spending reaches the roughly $2,100 cap, then covered drugs are $0 for the rest of the year. We compare deductibles across the plans we offer. (CMS PY2026; verify current figures on Medicare.gov.)
Does everyone pay the same Part B premium?
No. Most people pay the standard Part B premium, but higher earners pay more through the IRMAA surcharge, which is based on income from two years prior. A smaller group with limited income may pay less or nothing through a Medicare Savings Program. So the same "standard" premium isn't universal — it's the baseline, adjusted up for high incomes and potentially down for those who qualify for assistance. We can help estimate which applies to you. (Verify current figures on Medicare.gov.)
What's the difference between a premium, a deductible, and a copay?
A premium is what you pay monthly just to have coverage, whether or not you use care. A deductible is what you pay yourself before the plan starts paying — for example, a Part B or drug deductible each year. A copay (or coinsurance) is your share each time you actually get a service or fill a prescription. Medicare Advantage plans also add a yearly out-of-pocket maximum that caps total copays. Together these four numbers determine your real annual cost, not premium alone.
Is a $0-premium Medicare Advantage plan really free?
No. A $0 plan premium means there's no extra monthly premium beyond the Part B premium you already pay — but you can still owe copays, a drug deductible, and costs up to the plan's annual out-of-pocket maximum. Two $0 plans can differ by thousands of dollars in real-world cost depending on your health and prescriptions. With 22 plans in Minnehaha County and 28 in Sioux County, Iowa (CMS PY2026; verify current plans on Medicare.gov), we compare total expected cost, not just the premium line.
What is the Medicare Advantage out-of-pocket maximum?
Every Medicare Advantage plan has a yearly maximum out-of-pocket — a ceiling on what you pay in-network for covered medical care. Once your copays and coinsurance reach it, the plan pays 100% of covered medical costs for the rest of the year. Original Medicare alone has no such cap, which is one reason people add a Medigap policy. The out-of-pocket max varies by plan, so we compare it alongside premiums and copays on the plans we offer. (Verify current figures on Medicare.gov.)
How can I lower my Medicare costs if money is tight?
Several programs help. Extra Help (the Low-Income Subsidy) lowers your Part D premium, deductible, and copays. The Medicare Savings Programs can pay your Part B premium and other costs. Full Medicaid, if you qualify, coordinates with Medicare and may unlock a $0-premium Dual Special Needs Plan. Many people who'd qualify never apply simply because they don't know these exist. We can help you check your eligibility and, if you qualify, match you to a plan we offer that fits.
Why is comparing plans worth it if Medicare costs are set by the government?
Because only part of your cost is fixed. The Part B premium, the $615 Part D deductible, and the $2,100 drug cap are federal (CMS PY2026; verify current figures on Medicare.gov), but plan premiums, copays, drug tiers, networks, and out-of-pocket maximums all differ from one plan to the next. With roughly 22 to 28 plans available across our counties, the difference between a well-matched plan and a poorly-matched one can be substantial. We compare total expected cost across the plans we offer so you don't overpay.
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