databutler.dev · /facts — every fact · Verified Facts protocol · /.well-known/facts.json · /changes

IRMAA 2026: married, lived with spouse at any time in the year, filing separately, full Part B coverage and Part D

[{"magiAtMost":109000,"partBAdjustment":0,"partBTotalPremium":202.9,"partDAdjustment":0},{"magiOver":109000,"magiLessThan":391000,"partBAdjustment":446.3,"partBTotalPremium":649.2,"partDAdjustment":83.3},{"magiAtLeast":391000,"partBAdjustment":487,"partBTotalPremium":689.9,"partDAdjustment":91}] USD/month by MAGI row (partBAdjustment, partBTotalPremium; partDAdjustment is added to the plan premium)

2026, from 2026-01-01 · verified 2026-10-31 against the official source · next expected change 2027-01-01

Less than or equal to $109,000: $0.00, $202.90; Greater than $109,000 and less than $391,000: $446.30, $649.20; Greater than or equal to $391,000: $487.00, $689.90. Part D: $0.00, $83.30, $91.00.
key
us/medicare-costs/irmaa-married-separate
value
[{"magiAtMost":109000,"partBAdjustment":0,"partBTotalPremium":202.9,"partDAdjustment":0},{"magiOver":109000,"magiLessThan":391000,"partBAdjustment":446.3,"partBTotalPremium":649.2,"partDAdjustment":83.3},{"magiAtLeast":391000,"partBAdjustment":487,"partBTotalPremium":689.9,"partDAdjustment":91}] USD/month by MAGI row (partBAdjustment, partBTotalPremium; partDAdjustment is added to the plan premium)
period
2026
effective
2026-01-01 to date
source
https://www.cms.gov/newsroom/fact-sheets/2026-medicare-parts-b-premiums-deductibles
verified
2026-10-31 — fresh (6 days ago; next check by 2026-11-01)
next expected change
2027-01-01 (annual: a fixed day each year)
source checked
2026-11-02 (the newest day the automated check fetched the source page)
scope
Beneficiary costs for calendar 2026, distinct from the medicare category (payroll tax). IRMAA rows are read against MAGI from the tax return Social Security uses, generally two years earlier. CMS had not published 2027 amounts on 2026-10-31.
hash
sha256:de1ac709b3be0e177d86b07e1d342d2643ed631442ad8ec567a6abf840de20f8
signature
EdDSA, key db-2026-10 — keys

As JSON

curl -s https://databutler.dev/f/us/medicare-costs/irmaa-married-separate?max_age=30d — schema; verify with npx verified-facts verify https://databutler.dev/f/us/medicare-costs/irmaa-married-separate

{
  "protocol": "verified-facts/0.3",
  "key": "us/medicare-costs/irmaa-married-separate",
  "label": "IRMAA 2026: married, lived with spouse at any time in the year, filing separately, full Part B coverage and Part D",
  "value": [
    {
      "magiAtMost": 109000,
      "partBAdjustment": 0,
      "partBTotalPremium": 202.9,
      "partDAdjustment": 0
    },
    {
      "magiOver": 109000,
      "magiLessThan": 391000,
      "partBAdjustment": 446.3,
      "partBTotalPremium": 649.2,
      "partDAdjustment": 83.3
    },
    {
      "magiAtLeast": 391000,
      "partBAdjustment": 487,
      "partBTotalPremium": 689.9,
      "partDAdjustment": 91
    }
  ],
  "unit": "USD/month by MAGI row (partBAdjustment, partBTotalPremium; partDAdjustment is added to the plan premium)",
  "period": "2026",
  "effectiveFrom": "2026-01-01",
  "effectiveTo": null,
  "source": "https://www.cms.gov/newsroom/fact-sheets/2026-medicare-parts-b-premiums-deductibles",
  "quote": "Less than or equal to $109,000: $0.00, $202.90; Greater than $109,000 and less than $391,000: $446.30, $649.20; Greater than or equal to $391,000: $487.00, $689.90. Part D: $0.00, $83.30, $91.00.",
  "verifiedDate": "2026-10-31",
  "nextScheduledRefresh": "2026-11-01",
  "changeCadence": "annual",
  "nextExpectedChange": "2027-01-01",
  "sourceCheckedAt": "2026-11-02",
  "status": "fresh",
  "ageDays": 6,
  "maxAgeDays": null,
  "scope": "Beneficiary costs for calendar 2026, distinct from the medicare category (payroll tax). IRMAA rows are read against MAGI from the tax return Social Security uses, generally two years earlier. CMS had not published 2027 amounts on 2026-10-31.",
  "hash": "sha256:de1ac709b3be0e177d86b07e1d342d2643ed631442ad8ec567a6abf840de20f8",
  "signature": {
    "alg": "EdDSA",
    "kid": "db-2026-10",
    "jws": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRiLTIwMjYtMTAifQ..QUMY5H9DbKF80XhXbSIBwSFz4uNUHePQ0CQYP5ed4xWcklzxkuWVHTDa9E4AvjuxKCaeSHh5Ybxw37bTqAqzBQ",
    "keys": "https://databutler.dev/.well-known/jwks.json"
  },
  "publisher": {
    "name": "Data Butler",
    "url": "https://databutler.dev/"
  },
  "cite": {
    "url": "https://databutler.dev/facts/us/medicare-costs/irmaa-married-separate",
    "text": "databutler.dev, verified 2026-10-31 against https://www.cms.gov/newsroom/fact-sheets/2026-medicare-parts-b-premiums-deductibles"
  }
}