{
  "version": "2026.1",
  "generated_by": "scripts/gen_data_hub.mjs — scans each canonical dataset's own index.html head + JSON envelope",
  "source": "QuantCalc canonical /data/* dataset pages",
  "generated_at": "2026-07-21T14:08:21.641Z",
  "dataset_count": 6,
  "fields": [
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    "updated",
    "description"
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    {
      "url": "https://quantcalc.app/data/state-retirement-tax/2026/",
      "title": "State Retirement Tax Data 2026",
      "version": "2026.1",
      "updated": "2026-07-20",
      "description": "Downloadable CSV/JSON dataset of per-state 2026 retirement-tax policy facts — top marginal rate, standard deduction, Social Security taxability, qualified-retirement-income exemptions, and Roth-conversion treatment for all 51 U.S. jurisdictions, generated directly from QuantCalc's frozen state-tax engine."
    },
    {
      "url": "https://quantcalc.app/data/rmd-table/2026/",
      "title": "RMD Table 2026",
      "version": "2026.1",
      "updated": "2026-07-21",
      "description": "Downloadable CSV/JSON dataset of the 2026 IRS Uniform Lifetime Table III used to calculate Required Minimum Distributions (RMDs) — distribution period factor and RMD percentage of balance for every age 72-120, plus the SECURE 2.0 RMD start-age table by birth year, generated directly from QuantCalc's canonical tax-constants mirror."
    },
    {
      "url": "https://quantcalc.app/data/irmaa-brackets/2026/",
      "title": "IRMAA Brackets 2026",
      "version": "2026.1",
      "updated": "2026-07-21",
      "description": "Downloadable CSV/JSON dataset of the 2026 Medicare IRMAA brackets — per-tier MAGI thresholds (single and married filing jointly) with monthly and annual Part B and Part D surcharges, generated directly from QuantCalc's canonical tax-constants mirror."
    },
    {
      "url": "https://quantcalc.app/data/federal-tax-brackets/2026/",
      "title": "Federal Tax Brackets 2026",
      "version": "2026.1",
      "updated": "2026-07-21",
      "description": "Downloadable CSV/JSON dataset of the 2026 federal ordinary-income tax brackets for all 4 filing statuses (single, MFJ, MFS, HOH), plus the standard deduction, the additional standard deduction for filers 65+, and the OBBBA senior deduction parameters, generated directly from QuantCalc's canonical tax-constants mirror."
    },
    {
      "url": "https://quantcalc.app/data/capital-gains-brackets/2026/",
      "title": "Capital Gains Brackets 2026",
      "version": "2026.1",
      "updated": "2026-07-21",
      "description": "Downloadable CSV/JSON dataset of the 2026 federal long-term capital-gains tax brackets (0%/15%/20%) for all 4 filing statuses, plus the §1411 Net Investment Income Tax (NIIT) threshold and rate, with an illustrative tax-on-$10,000-gain column computed via QuantCalc's production capital-gains tax function."
    },
    {
      "url": "https://quantcalc.app/data/state-social-security-tax/2026/",
      "title": "State Social Security Tax 2026",
      "version": "2026.1",
      "updated": "2026-07-21",
      "description": "Downloadable CSV/JSON dataset of how all 51 U.S. jurisdictions tax Social Security benefits in 2026 — which 8 states tax some SS, the exact AGI exemption thresholds (single and MFJ) each uses, and a plain-language description of each state's statutory rule, generated directly from QuantCalc's frozen state-tax engine."
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}