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Pass-through tax rules

app.vercel.pass-through-tax-rules/pass-through-tax-rules · v0.1.0

Measured by MCP Station

Description written by the publisher, not verified

Cited, tax-year-dated rules for state PTET, the federal SALT cap, and bonus-depreciation conformity.

Connect

claude mcp add --transport http pass-through-tax-rules https://pass-through-tax-rules.vercel.app/api/mcp

{
  "mcpServers": {
    "pass-through-tax-rules": {
      "url": "https://pass-through-tax-rules.vercel.app/api/mcp"
    }
  }
}

Tools as reported by the server

• ptet_rules
  Elective pass-through entity tax for one state and tax year: eligibility, who elects, deadline, rate, owner credit or exclusion, estimates, and sunset. Returns not_covered when this server has no file. Informational, not tax advice.
• salt_cap
  Compute the federal SALT deduction cap under 26 USC 164(b)(6) and (b)(7) for a tax year, filing status, and modified adjusted gross income. Returns the cap and the steps, not the deduction. Years before 2018 are not_covered. MAGI is used to compute and is not written to the usage log.
• bonus_conformity
  Whether a state conforms to IRC 168(k) bonus depreciation and IRC 179 for a tax year, its IRC conformity date, and the add-back or subtraction in plain terms. Unverified fields are null. Unknown states and years are not_covered.
• coverage
  List jurisdictions and tax years in this dataset. elective_ptet_2026 counts only 2026 files with an elective PTET. no_elective_ptet_2026 and not_effective_2026 are separate and are not PTET states for 2026.

Website · JSON · Text for agents · Registry updated 2026-10-24