{
  "id": "income-followup-migration",
  "question": "Is the income-specific migration imbalance persistent?",
  "hint": "Proposed follow-up",
  "answer": "Check older series and the IRS matching-method break before making a trend comparison. A future release should be used only after publication and definition checks.",
  "period": "Proposed; not running",
  "limit": "Matched filing-address returns are not individual people. Class and amount use year-2 income. This earlier transition differs from the dividend comparison; aggregate AGI does not identify dividend income, tax motive or a causal mechanism. As of September 21, 2026, CY2023-2024 migration data were unpublished but tentatively scheduled for November 20, 2026.",
  "status": "proposed",
  "children": [],
  "related": [
    "income-migration-classes"
  ],
  "findings": [],
  "plots": [],
  "sources": [
    {
      "label": "IRS migration data and documentation, 2022-2023",
      "url": "https://www.irs.gov/statistics/soi-tax-stats-migration-data-2022-2023"
    },
    {
      "label": "IRS annual release calendar",
      "url": "https://www.irs.gov/pub/irs-soi/soi-public-release-list.xlsx"
    }
  ],
  "record_url": "/research/washington-income/2026-09-21/nodes/income-followup-migration/index.html",
  "as_of_date": "2026-09-21",
  "methods": "Proposed evidence path: inventory comparable earlier migration files and matching definitions. A tentative schedule is not evidence that a new file has appeared.",
  "lineage_ids": [
    "website-handoff-followup-2",
    "E-577144183616"
  ],
  "publication_state": "prepared",
  "record_json_url": "/research/washington-income/2026-09-21/nodes/income-followup-migration/record.json"
}