Arc & Ledger Tax Tools MCP Tools

• triage_tax_problem

  triage tax problem

• decode_irs_notice

  decode irs notice

• check_resolution_options Read-only

  check resolution options

• estimate_irs_penalty

  estimate irs penalty

• explain_tax_document

  explain tax document

• deadline_calendar

  deadline calendar

• get_document_checklist Read-only

  get document checklist

• check_fbar_fatca Read-only

  check fbar fatca

• check_treaty_withholding Read-only

  check treaty withholding

• check_itin_eligibility Read-only

  check itin eligibility

• check_5472_obligation Read-only

  check 5472 obligation

• compare_llc_scorp

  compare llc scorp

• estimate_quarterly_taxes

  estimate quarterly taxes

• estimate_reasonable_comp

  estimate reasonable comp

• estimate_accountable_plan

  estimate accountable plan

• estimate_augusta_rule

  estimate augusta rule

• estimate_rental_income

  estimate rental income

• compare_formation_states

  compare formation states

• check_sales_tax_nexus Read-only

  check sales tax nexus

• get_fee_quote Read-only

  get fee quote

• book_consultation

  book consultation

This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.