DoubleTaxation

Install

Pick the AI app you use, then copy the settings.

Passed 2/3 checks · What you ask goes through the maker’s server (doubletaxation.app) · ✓ Commands checked Nov 13, 2026

claude mcp add --transport http --scope user doubletaxation https://doubletaxation.app/api/mcp

{
  "mcpServers": {
    "doubletaxation": {
      "url": "https://doubletaxation.app/api/mcp"
    }
  }
}

{
  "servers": {
    "doubletaxation": {
      "type": "http",
      "url": "https://doubletaxation.app/api/mcp"
    }
  }
}

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast

All apps, with pros and cons →

What it can do

Tool names and descriptions exactly as the server reported them on Nov 12, 2026. The maker wrote them, not us; we show them as plain text.

• list_versions

  Lists the 24 versions of DoubleTaxation. Each version is written for taxpayers of one home state (in its language) and compares it with 27 other countries. Call this first if you are not sure which version fits the user.

• list_countries

  Lists the countries that can be checked against the home state of a version: whether a tax treaty is in force (title, dates, link), whether per-income treaty rules and tax burden data exist, plus the allowed citizenship options and years for check_residency.

• check_residency

  Determines the person's tax residence between the version's home state and another country, step by step. Without all answers it returns status "needs_answer" and the next question (id, text, options); ask the user and call again with all answers collected so far. When complete i

• tax_burden

  Income tax and social contributions on an annual salary in one or more countries (OECD Taxing Wages method: single person, no children, full-year employee). Returns net pay, personal rate, tax wedge and marginal rate, sorted from lowest to highest personal rate. 21 countries are

• count_days

  Counts days of stay per country from the trips the user provides (country, from, to) under each country's own counting rule (calendar year, tax year, any 12 months, US substantial presence test, continuous stay): days in the counting period, the day threshold for tax residence an

• next_steps

  What to do once the tax residence is known (the same blocks as under the result on doubletaxation.app and in check_residency "done"): how to get a certificate of residence, obligations of a resident (returns, deadlines), obligations and options of a non-resident with income from

• exit_tax_check

  Whether a country levies an exit (departure) tax on individuals who give up tax residence: who pays and on what (assets, thresholds, prior residence period), deferral or relief (e.g. moving within the EU/EEA), the legal norm with a link and the date checked.

• regime_search

  Special and preferential tax regimes for individuals (newcomers / impatriates, employees, self-employed, investors, pensioners) in 21 countries. Filter by country, kind, status and free text. Returns per regime: official name, who it is for, the benefit, duration, how to apply, l

• compare_business_forms

  Business tax calculator for a resident of one country and one sector (activity): every legal form (sole proprietor, own company) under every available tax system — total tax and contributions, what remains, rate, line items, why a system is unavailable for the sector or amount, c

• explain_residency

  Answers general questions about tax residence and the theory behind it from the monograph by DoubleTaxation's legal expert, Yevhen Marynchak, "The Financial-Legal Link Between an Individual and the State" (2nd edition, 2020): 893 questions and answers covering what resident statu

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 14, 2026

• ! Caution

  Maker matches the repo

  The registry lists no source repo, so we cannot match the publisher (doubletaxation.app) to the code

• … Not checked yet

  Still maintained

  We have not read this repo from GitHub yet

• … Not checked yet

  Has a licence

  We have not read this repo from GitHub yet

• ✓ Pass

  Endpoint responds

  Responded in 308 ms (HTTP 200)

• – Not applicable

  Sign-in with OAuth

  No sign-in needed

• ✓ Pass

  No hidden instructions in tool descriptions

  Read 10 tool descriptions and found no hidden instructions to the AI

User reviews

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Compared with others in Accounting, finance & taxi

• More stars than 0% of the other 3212 servers in this category
• Published to the registry more recently than 78% of the other 3212 servers in this category
• Basic checks equal to or better than 52% of the other 3212 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

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README from the maker

No README found in the repo