TaxMCP
TaxMCP is a GPT‑5–powered 1040 tax calculation engine and benchmark harness.
Core trick
GPT-5 calls exact IRS tax-table lookup tools, and outputs are scored against TaxCalcBench ground truth via an MCP server.
Description
TaxMCP is a GPT‑5–powered 1040 tax calculation engine and benchmark harness. It orchestrates GPT‑5 with tool calls to authoritative IRS data (exact tax table lookups), evaluates outputs against TaxCalcBench TY24 ground truth (strict/lenient), and packages a reproducible CLI + MCP tool server.
The linked repo returns 404, so it was deleted or made private.