AI2Fin Tax MCP
Look up GST/VAT, income tax and company tax rates for 50+ countries, and calculate tax on amounts and income.
Free tax reference for 50+ countries with source-cited rates for GST/VAT, personal income tax, and company tax. Calculates tax on invoices and estimates take-home pay for Australia, New Zealand, UK, India and US. Includes Australian capital gains tax, HELP loan repayment and superannuation estimates.
Try asking Muse: "What's my take-home pay if I earn $80,000 a year in Australia, and how much superannuation will my employer contribute?"
Source: Found in the official MCP Registry (com.ai2fin/ai2fin-tax-mcp) · First listed September 24, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 54 min ago.
Is it safe to connect?
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
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How to add it to Muse
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. 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.
https://taxmcp.ai2fin.com/Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 419ms. Worked in 100% of checks over 30 days.
Screening · September 24, 2026
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
Tools · 9
tax_rate_as_ofLook up the GST/VAT standard rate that applied in a country ON A GIVEN DATE, rather than today's rate. Use it when reconciling or amending a past transaction, invoice or return — several countries changed rate recently (Estonia twice since 2024, Finland, Kazakhstan, Russia, Romantax_rate_lookupLook up one country's headline tax rates: GST/VAT standard and reduced rates, top personal income tax rate, and company tax rate. Use it for a single country; to see several countries side by side use compare_countries, and to apply GST/VAT to an amount use compute_gst_vat. Ratescompute_gst_vatAdd or remove a country's GST/VAT on a monetary amount, returning the net / tax / gross split. Use it to convert between tax-exclusive and tax-inclusive prices (invoices, quotes, receipts); for the rates themselves use tax_rate_lookup. Pure arithmetic on the country's current stacompare_countriesCompare headline tax rates — GST/VAT, top personal income tax and company tax — across several countries at once. Use it to shortlist or contrast jurisdictions (relocation, expansion, pricing); for one country's full detail use tax_rate_lookup, and to apply a rate to an amount usincome_tax_estimateEstimate personal income tax and take-home pay for Australia, New Zealand, the UK, India or the US from gross annual income, using effective-dated brackets that roll over automatically each tax year (AU: Medicare levy + LITO; UK: National Insurance + personal-allowance taper; IN:company_tax_estimateEstimate company/corporate income tax on an annual profit for Australia, the US, the UK, India or Canada — the five countries with source-verified company rates — applying the small-business/concessional rate where it covers all income. Use it for company profit questions in thoscgt_estimateEstimate Australian capital gains tax for a resident individual by taxing the gain at the marginal rate on top of other income (the difference of two income-tax calculations). Use it for AU asset-sale questions (shares, property, crypto); for pay without an asset sale use income_student_loan_repaymentEstimate the compulsory annual study or training loan repayment (HELP, HECS, VSL, SFSS, SSL, AASL) for an Australian resident from their repayment income, using the marginal system introduced in 2025-26 with effective-dated thresholds that roll over each financial year. Use it fosuperannuation_estimateEstimate Australian superannuation for an employee: the compulsory Superannuation Guarantee contribution (12% from 2025-26), concessional (before-tax) contributions cap usage, the 15% in-fund contributions tax, and the Division 293 high-earner surcharge — all effective-dated so aRecent checks
Link
https://taxmcp.ai2fin.com/Questions about AI2Fin Tax MCP in Muse
How do I connect AI2Fin Tax MCP to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use AI2Fin Tax MCP to help me. It is a free service with an MCP server at https://taxmcp.ai2fin.com/. 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.
Is AI2Fin Tax MCP working right now?
At the last check (September 28, 2026, 08:16 UTC) the endpoint was working, answering in 419ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is AI2Fin Tax MCP safe to connect to Muse?
It was screened on September 24, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
What can AI2Fin Tax MCP do in Muse?
It exposes 9 tools, including tax_rate_as_of, tax_rate_lookup, compute_gst_vat, compare_countries. For example, you could ask Muse: "What's my take-home pay if I earn $80,000 a year in Australia, and how much superannuation will my employer contribute?"
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