39 tax tools for US taxpayers: federal/state tax, credits, deductions, retirement. All local.
Irs MCP server is a locally run integration for AI assistants that speak the Model Context Protocol. 39 tax tools for US taxpayers: federal/state tax, credits, deductions, retirement. All local.
Tax season is stressful. You're juggling W-2s, 1099s, deductions, credits, and trying to figure out if you should itemize or take the standard deduction. You Google "SALT deduction limit 2025" and get 10 conflicting articles.
Once Irs is connected, these are the calls the assistant has available:
calculate_obbb_deductions — Calculate all 4 new OBBB deductions: tips, overtime, senior bonus, auto loan interestwhat_changed_between_tax_years — Full diff between TY2024 and TY2025 — brackets, deductions, credits, SALT, OBBB provisionsThe server ships on npm as irs-taxpayer-mcp, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.
Plenty of developer tooling servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. Irs's toolset — calculate_obbb_deductions, what_changed_between_tax_years — is a fair guide to whether it matches your workflow. It is maintained by dma9527; worth a glance at recent repository activity before you build anything load-bearing on it.
We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.
| Tool | What it does |
|---|---|
| calculate_obbb_deductions | Calculate all 4 new OBBB deductions: tips, overtime, senior bonus, auto loan interest |
| what_changed_between_tax_years | Full diff between TY2024 and TY2025 — brackets, deductions, credits, SALT, OBBB provisions |
{
"mcpServers": {
"irs-taxpayer": {
"command": "npx",
"args": ["-y", "irs-taxpayer-mcp"]
}
}
}Configuration as documented by the project. Restart the client after saving.
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