# Quarterly Tax Calculator Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## Quarterly Tax Calculator

Calculate US quarterly estimated tax payments and due dates for self-employed people.

- Record: https://musedirectory.ai/connector/quarterly-tax-calculator
- Category: Finance & Bills
- Developer: al157 (https://quarterlytax.al157.xyz)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 83ms, checked 2026-10-29T12:30:51Z
- Endpoint: https://mcp.quarterlytax.al157.xyz/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-10-28T14:21:22Z)
- Source: Found in the official MCP Registry (io.github.al157/quarterlytax-mcp) https://registry.modelcontextprotocol.io/v0/servers?search=io.github.al157%2Fquarterlytax-mcp

Estimates federal and state quarterly estimated tax payments for self-employed individuals. Calculates annual federal income tax, self-employment tax, state income tax, and provides per-quarter installment amounts and payment due dates.

Example request: "What are my quarterly estimated tax payments if I made $80,000 in net self-employment income this year as a single filer in California?"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Quarterly Tax Calculator to help me. It is a free service with an MCP server at https://mcp.quarterlytax.al157.xyz/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- estimateQuarterlyTax: Estimate US federal + state quarterly estimated tax payments for a self-employed person. Given annual Schedule C net profit, filing status, two-letter US state code, tax year, and whether the §199A QBI deduction applies, returns annual federal income+SE tax, rough state income ta
- getPaymentCalendar: Return the 4 federal quarterly estimated tax payment due dates for a tax year (Apr/Jun/Sep 15 and Jan 15 of the following year, rolled forward past weekends and IRS holidays to the real deadline), plus a deep link to the site. Read-only.

Screening checks:
- MCP handshake: pass (Answered in 50ms)
- Domain against threat feeds (Cloudflare security DNS): pass (mcp.quarterlytax.al157.xyz, quarterlytax.al157.xyz not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (2 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)