Open Source Tax Software.
Every project is a real public repository, with stats refreshed from the source. Members can review projects, and maintainers can verify ownership of their pages.
Handle all the hard stuff related to EU MOSS tax/vat regulations, the way it should be.
Fully open-source US federal tax engine. Single binary cli. Runs on macOS, Linux, and Windows. Built for AI agents using AI agents.
Aotearoa New Zealand legislation as code
Runloop's AI TaxMan Project: an agent development starter that uses Codex & W&B Weave to process tax forms. Watch YouTube series: https://youtu.be/an7OMH_i8DU
MCP server for US individual taxpayers — 39 tools for federal/state tax calculations, credits, deductions, retirement strategies, and tax planning. All calculations run locally. TY2024 + TY2025 (OBBB Act).
Free equity-compensation tax optimizer for AI agents — ISO/AMT, NSO, RSU sell-vs-hold, QSBS, concentration & hedging. Deterministic math, federal + 50 states + DC, multi-year plans. Remote MCP + REST, no signup.
Retrieval Augmented Generation (RAG) dataset for Brazilian Federal Revenue Service (Receita Federal do Brasil ― RFB).
ATO Rulings & Guidance — Australian Tax Law, Structured for AI 67,000+ Australian Taxation Office documents as RAG-ready NDJSON/CSV — Edited Private Advice, public rulings and determinations, ATO Interpretative Decisions, practical compliance guidelines, taxpayer alerts, decision impact statements, practice statements and legislative instruments. Every document parsed into structured, typed fields for legal RAG, LLM fine-tuning, and tax research automation. Machine-readable… See the full description on the dataset page: https://huggingface.co/datasets/simplelex/ATO-Australian-Tax-Rulings-and-Guidance.
MCP server for AgentTax — tax compliance tools for AI agents
Build one of these? Verify ownership through GitHub and take over your project's page: tagline, categories, maintainer's note.