{
  "title": "Medicare Part B Premium 2026: Standard Premium, Deductible and Income Tiers",
  "canonical": "https://quantcalc.app/medicare-part-b-premium-2026/",
  "status": "OFFICIAL",
  "license": "CC-BY-4.0",
  "date_modified": "2026-10-11",
  "sources": [
    {
      "label": "CMS, 2026 Medicare Parts A & B Premiums and Deductibles (14 November 2025)",
      "url": "https://www.cms.gov/newsroom/fact-sheets/2026-medicare-parts-b-premiums-deductibles"
    },
    {
      "label": "42 U.S.C. §1395r (Part B premium; income-related adjustment in subsection (i))",
      "url": "https://www.law.cornell.edu/uscode/text/42/1395r"
    },
    {
      "label": "20 CFR §418.1135 (the tax year two years earlier)",
      "url": "https://www.ecfr.gov/current/title-20/chapter-III/part-418/subpart-B/section-418.1135",
      "verified": "2026-10-11 (eCFR API): 'we will use your modified adjusted gross income provided by IRS for the tax year 2 years prior to the effective year of the income-related monthly adjustment amount determination.'"
    },
    {
      "label": "20 CFR §418.1010 (modified adjusted gross income)",
      "url": "https://www.ecfr.gov/current/title-20/chapter-III/part-418/subpart-B/subject-group-ECFR6f0ce36bcdb52e7/section-418.1010",
      "verified": "2026-10-11 (eCFR API): MAGI is adjusted gross income 'plus the following forms of tax-exempt income: (i) Tax-exempt interest income; (ii) Income from United States savings bonds used to pay higher education tuition and fees; (iii) Foreign earned income; ...'"
    }
  ],
  "figures": {
    "part_b_standard_premium_2026": 202.9,
    "part_b_standard_premium_2025": 185,
    "part_b_deductible_2026": 283,
    "part_b_deductible_2025": 257,
    "part_a_premium_2026": {
      "reduced_30_39_quarters": 311,
      "full_under_30_quarters": 565
    },
    "tiers_single_joint": [
      {
        "single": 109000,
        "joint": 218000,
        "surchargeB": 81.2,
        "partD": 14.5,
        "totalB": 284.1
      },
      {
        "single": 137000,
        "joint": 274000,
        "surchargeB": 202.9,
        "partD": 37.5,
        "totalB": 405.8
      },
      {
        "single": 171000,
        "joint": 342000,
        "surchargeB": 324.6,
        "partD": 60.4,
        "totalB": 527.5
      },
      {
        "single": 205000,
        "joint": 410000,
        "surchargeB": 446.3,
        "partD": 83.3,
        "totalB": 649.2
      },
      {
        "single": 500000,
        "joint": 750000,
        "surchargeB": 487,
        "partD": 91,
        "totalB": 689.9
      }
    ],
    "tiers_mfs_lived_together": [
      {
        "floor": 109000,
        "totalB": 649.2,
        "partD": 83.3
      },
      {
        "floor": 391000,
        "totalB": 689.9,
        "partD": 91
      }
    ]
  }
}