Tax MCP by AI2Fin — Source-Cited Tax Rates & Calculators
The tax brain your agent can call. Point Claude, ChatGPT, Cursor, or your own agent at one endpoint and it can look up real GST/VAT, income and company tax rates and run the maths for you. Every answer is source-cited to the national tax authority with a verified-as-of date, so you can see exactly where each number comes from. Free, public, no login, no API key, and nothing is stored. Where coverage is only partial, it says so plainly instead of guessing.
Overview
Tax MCP by AI2Fin
The tax brain your agent can call. Point Claude, ChatGPT, Cursor, or your own agent at one endpoint and it can look up real tax rates and run the maths for you. Every answer is source-cited to the national tax authority with a verified-as-of date, so you can see exactly where each number comes from.
Endpoint: https://taxmcp.ai2fin.com
Free · public · no login, no key, stores nothing.
Why Tax MCP
- Cited to the tax authority. Every figure traces back to the authority that set it (ATO, HMRC, DGFiP, BZSt, and more).
- Verified-as-of date on every answer. You always know how current a rate is.
- Says "partial" instead of guessing. Where coverage is incomplete, it tells you plainly rather than inventing a number.
Connect in 3 steps
- Copy the endpoint — one URL:
https://taxmcp.ai2fin.com. No install, no key to request. - Add the connector — in Claude: Settings → Connectors → Add custom connector, then paste it. The same idea works in ChatGPT, Cursor, or your own agent.
- Just ask — ask any tax question in plain language; your assistant calls the right tool and hands back a sourced answer.
Six tools your agent can reach for
| Tool | What it does | Coverage |
|---|---|---|
tax_rate_lookup | A country's GST/VAT plus its top income and company rates, in one sourced call. | ~50 countries |
compute_gst_vat | Add or remove GST/VAT on any amount, with the breakdown shown. | Global |
compare_countries | Put rates side by side across markets, each row carrying its own source. | Global |
income_tax_estimate | Take-home pay including levies. | AU, NZ |
company_tax_estimate | Company tax for entities. | AU, US, UK, CA, IN |
cgt_estimate | Australian CGT, including the 50% discount where it applies. | AU |
student_loan_repayment | Compulsory HELP/HECS study-loan repayment on the 2025-26 marginal system. | AU |
superannuation_estimate | Super Guarantee, concessional cap, contributions tax and Division 293. | AU |
Coverage
GST/VAT plus headline income and company rates for roughly 50 countries worldwide (AU, NZ, US, UK, CA, IN, DE, FR, SG, IE, and many more), with deeper calculators for the verified countries listed above.
Example exchanges
- "What's my take-home on $90,000 in Australia?" → About $70,412 — $17,788 income tax plus a $1,800 Medicare levy (2025-26), cited to the ATO.
- "Compare VAT in Germany, France and the UK." → Germany 19% (BZSt), France 20% (DGFiP), United Kingdom 20% (HMRC) — each rate cited to its own authority.
Two doors, one ocean
- Public Tax MCP (this server): rates and calculators for everyone. No login, no key, nothing stored. Connect at
https://taxmcp.ai2fin.com. - Your 2Fin account server: a separate, authenticated sibling for your own transactions and live tax position at
https://api.ai2fin.com/mcp.
Give your agent a tax brain it can cite. Copy the endpoint, add the connector, and start asking.
Server Config
{
"mcpServers": {
"tax-mcp": {
"url": "https://taxmcp.ai2fin.com"
}
}
}Recommend Servers
TraeBuild with Free GPT-4.1 & Claude 3.7. Fully MCP-Ready.
AiimagemultistyleA Model Context Protocol (MCP) server for image generation and manipulation using fal.ai's Stable Diffusion model.
CursorThe AI Code Editor
MiniMax MCPOfficial MiniMax Model Context Protocol (MCP) server that enables interaction with powerful Text to Speech, image generation and video generation APIs.
DeepChatYour AI Partner on Desktop
Tavily Mcp
Y GuiA web-based graphical interface for AI chat interactions with support for multiple AI models and MCP (Model Context Protocol) servers.
EdgeOne Pages MCPAn MCP service designed for deploying HTML content to EdgeOne Pages and obtaining an accessible public URL.
BlenderBlenderMCP connects Blender to Claude AI through the Model Context Protocol (MCP), allowing Claude to directly interact with and control Blender. This integration enables prompt assisted 3D modeling, scene creation, and manipulation.
RedisA Model Context Protocol server that provides access to Redis databases. This server enables LLMs to interact with Redis key-value stores through a set of standardized tools.
ChatWiseThe second fastest AI chatbot™
Amap Maps高德地图官方 MCP Server
Visual Studio Code - Open Source ("Code - OSS")Visual Studio Code
WindsurfThe new purpose-built IDE to harness magic
Serper MCP ServerA Serper MCP Server
Howtocook Mcp基于Anduin2017 / HowToCook （程序员在家做饭指南）的mcp server，帮你推荐菜谱、规划膳食，解决“今天吃什么“的世纪难题；
Based on Anduin2017/HowToCook (Programmer's Guide to Cooking at Home), MCP Server helps you recommend recipes, plan meals, and solve the century old problem of "what to eat today"
Playwright McpPlaywright MCP server
Baidu Map百度地图核心API现已全面兼容MCP协议，是国内首家兼容MCP协议的地图服务商。
MCP AdvisorMCP Advisor & Installation - Use the right MCP server for your needs
Zhipu Web SearchZhipu Web Search MCP Server is a search engine specifically designed for large models. It integrates four search engines, allowing users to flexibly compare and switch between them. Building upon the web crawling and ranking capabilities of traditional search engines, it enhances intent recognition capabilities, returning results more suitable for large model processing (such as webpage titles, URLs, summaries, site names, site icons, etc.). This helps AI applications achieve "dynamic knowledge acquisition" and "precise scenario adaptation" capabilities.
Jina AI MCP ToolsA Model Context Protocol (MCP) server that integrates with Jina AI Search Foundation APIs.