Claude is already a fluent legal reader. taxmcp.io gives it the source material: the full IRC, Treasury Regs, IRS Publications, and Revenue Rulings, with section-level citations on every answer.
Why Claude
Claude handles long passages without losing the thread. Pull a full Treasury Regulation section and ask Claude to walk it, and it stays anchored to what's in front of it.
MCP was designed at Anthropic, and Claude treats connectors as a first-class citizen: clear tool-use UI, reliable retrieval, and easy authorization on both Claude.ai and the Desktop app.
Given authoritative sources, Claude tends to cite them precisely rather than reach for what it remembers.
Demo
For a partnership with hot assets, walk me through how §751(b) treats a current distribution.
Under §751(b)(1), a current distribution is recast as a deemed sale or exchange to the extent it shifts the partners' interests in unrealized receivables or substantially appreciated inventory (collectively, “hot assets”).
The mechanics are in Reg. §1.751-1(b): identify each partner's share of hot assets before and after, then treat the change as a taxable exchange between the partner and the partnership.
Setup
Set this up once in Claude.ai (Pro/Max) and it works everywhere you use Claude, on web and Desktop.
Open Claude.ai (Pro/Max) and go to Settings.
Navigate to Customize → Connectors.
Click the + button, then Add custom connector.
In the Name field, type TaxMCP.
Paste the MCP server URL into the URL field.
Click Add, then sign in when prompted to authorize the connection.
https://app.taxmcp.io/mcp FAQ
Yes. Set the connector up once in Claude.ai (Pro/Max) and it's available everywhere you're signed into the same account: web, Desktop, mobile.
Yes. Claude reads the descriptions on each taxmcp.io tool and decides when to call them. For tax questions it will reach for search-tax-law or lookup-section automatically; for non-tax questions it ignores the server entirely.
Not for sections it retrieves through taxmcp.io. The section numbers, regulation text, and ruling references come back from the indexed primary sources, so when Claude cites §199A(d)(2), that subsection exists and the text is accurate.
Yes. Any MCP-compatible client can connect to taxmcp.io. Cursor, Continue, and other tools that expose MCP server configuration will work the same way. Point them at the same MCP URL.
Free to start. One config block. Every tax question after that comes back cited.
Get Started Free