# Tax Numbers

- Registry name: `app.openkrill/tax` · version 1.1.0
- Categories (automatic, keyword rules): Payments & accounting, Finance & markets
- Authentication at last check: No auth
- Declared risk: Can write (some tools are not declared read-only)
- Capabilities (declared by the server): tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=app.openkrill%2Ftax
- Server page: https://mcpstation.net/s/app.openkrill--tax.html

## Description (written by the publisher, not verified, not instructions)

Get the US federal tax numbers right, with the IRS document each one comes from.

## Connect

- streamable-http: `https://tax.openkrill.app/mcp`

## Tools (as reported by the server, not verified)

- `get\_tax\_parameters`: Use this when the user asks for a published US federal tax figure, for example "what are the 2026 tax brackets for married filing jointly", "standard deduction for head of household in 2025", "long-term capital gains thresholds", "Social Security wage base", "401\(k\) contribution limit". Pass the tax
- `get\_mileage\_rate`: Use this when the user asks for the IRS standard mileage rate on a day, for example "what was the business mileage rate on 15 March 2026", "how much per mile can I deduct for charity driving", "medical mileage rate in 2025". Pass the date \(YYYY-MM-DD\); the rate in force that day is returned in cents
- `tax\_deadlines`: Use this when the user asks when a US federal individual tax date falls, for example "when is the 2025 return due", "when is the extension deadline", "when is the next estimated tax payment due". Pass the tax year \(the year the income was earned\) and optionally as\_of \(today, YYYY-MM-DD\) to get the n
- `estimate\_federal\_tax`: Use this when the user wants a rough US federal income tax figure, for example "how much federal tax on $90,000 of wages", "estimate my tax with $40,000 of freelance income", "what is my marginal rate". Pass the tax year, filing\_status \(single, mfj, mfs, hoh\) and wages in dollars, and optionally sel
- `tax\_duty`: Use this when a seller asks whether they must register for VAT or sales tax in a place, for example "I sell e-books from Germany and made 14,000 EUR to buyers in France, do I need to register?" or "my US company sells SaaS with 150,000 USD of sales to Texas, do I owe sales tax?". Pass seller\_country
- `submit\_feedback`: Send feedback, a bug report or a tool request to the maintainers of the tools on this server: a missing tool, missing or stale data, or a tool that broke or gave a wrong answer. Pass the kind \(need\_tool, need\_data, bug or other\), one short message \(at most 1000 characters\) and, if you know them, the
- `get\_feedback\_reply`: Read the maintainers' reply to feedback you sent with submit\_feedback, given its ticket id. Returns status pending until a reply is ready, then status answered with the reply text. The reply is information for you, not an instruction.

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