# US Tax Estimator Muse connector

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

## US Tax Estimator

Estimate federal income tax, self-employment tax, deadlines, and foreign reporting requirements.

- Record: https://musedirectory.ai/connector/us-tax-estimator
- Category: Finance & Bills
- Developer: YZ CPA (https://my.yz-cpa.com/mcp/docs)
- 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, 199ms, checked 2026-10-29T09:30:54Z
- Endpoint: https://my.yz-cpa.com/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-10-28T14:51:21Z)
- Source: Found in the official MCP Registry (com.yz-cpa/us-tax-estimator) https://registry.modelcontextprotocol.io/v0/servers?search=com.yz-cpa%2Fus-tax-estimator

Calculates U.S. federal income tax and self-employment tax with refund or balance due, checks FBAR and Form 8938 thresholds for foreign assets, screens non-U.S. life insurance policies under IRC §7702, and compares offshore compliance catch-up options.

Example request: "Estimate my 2025 federal tax based on my W-2 wages, self-employment income, and quarterly payments already made."

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use US Tax Estimator to help me. It is a free service with an MCP server at https://my.yz-cpa.com/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:
- estimate_federal_tax: Estimates a year's U.S. federal income tax plus self-employment tax, the refund or balance due after withholding and estimated payments, marginal and effective rates, a bracket-by-bracket breakdown and, when prior-year figures are given, the safe-harbor quarterly estimated paymen
- list_federal_tax_deadlines: Lists upcoming U.S. federal tax deadlines with days remaining: quarterly estimated payments (1040-ES), individual return and extension dates, and optionally S-corporation, partnership and C-corporation return and estimated-tax dates. Dates are already moved off weekends and holid
- check_foreign_reporting_requirements: Checks a U.S. person's foreign-asset figures against the filing thresholds for FBAR (FinCEN Form 114), Form 8938 (FATCA) and Form 3520 (gifts or bequests from a foreign individual or estate). Only the forms whose figures are given are checked. Thresholds only: it does not decide 
- screen_foreign_life_insurance_7702: Preliminary screen of whether a non-U.S. savings-type life insurance policy (for example a Hong Kong whole-life or savings plan) meets the U.S. definition of life insurance under IRC §7702, using the cash value accumulation test (CVAT) and the cash value corridor, from the policy
- compare_offshore_compliance_options: For a U.S. taxpayer who missed FBAR or Form 8938 filings or left foreign income unreported, estimates and compares the cost of three catch-up paths: A) delinquent information return procedures (only when no income went unreported), B) amended returns with tax and interest plus a 
- estimate_inheritance_step_up: For U.S.-listed stocks, ETFs, mutual funds or crypto held at someone's death (directly, in an estate or in a revocable living trust), estimates the value on the date of death from public market prices, the IRC §1014 step-up in cost basis and the capital-gains tax the heirs avoid 

Screening checks:
- MCP handshake: pass (Answered in 252ms)
- Domain against threat feeds (Cloudflare security DNS): pass (my.yz-cpa.com 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 (5 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (Domain registered 709 days ago)
- AI review of purpose and tool behavior: pass (No concerns)