My Thai Taxes MCP

An open-source MCP server that exposes a tool to calculate Thai personal income tax for salaried employees. It computes annual tax liabilities based on income, marital status, dependents, and deductions, providing step-by-step breakdowns and estimates for the 2026 tax year.

Visit My Thai Taxes

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Community listingStreamable HTTPNo sign-inEndpoint checked 2026-11-06Published by My Thai Taxes

MCP endpoint (Streamable HTTP)

https://mythaitaxes-mcp.hannwill999.workers.dev/mcp

Vendor documentation

What its tools do

1 tool, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Not annotated (1)

calculate_thai_annual_income_tax

1 of 1 have a description · 0 of 1 declare behavior hints · 0 of 1 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

Passed Endpoint answered the live check · Nov 6, 2026, 3:59 PM UTC
Availability 1 of 1 checks passed in 30 days

What you can do with it

Calculate annual Thai personal income tax for salaried employees
Estimate tax based on income, marital status, and dependents
Integrate Thai tax estimation into AI agents via MCP

Source and maintenance

Community listingRegistry 1.0.0

mcp-registry: io.github.holsson95/mythaitaxes-mcp@1.0.0 Project website

Protocol and capabilities

Server: mythaitaxes-mcp 1.0.0
MCP protocol negotiated in check: 2025-06-18
Tools: 1 advertised
Resources: Not advertised
Resource templates: Not advertised
Prompts: Not advertised

Server-advertised capabilities

{
  "tools": {}
}

Tools

1 advertised

calculate_thai_annual_income_tax — Calculate Thai Annual Personal Income Tax

Advertised by the server during the last successful anonymous check.

Calculates Thailand personal income tax (PIT) for a salaried employee for a tax year, using current progressive tax brackets, standard allowances, and common deductions (social security, insurance, retirement funds, donations). Returns taxable income, tax owed, effective rate, and refund/amount owed against tax already withheld. Source: mythaitaxes.com.

calculate_thai_annual_income_tax input schema

{
  "type": "object",
  "required": [
    "annualIncome"
  ],
  "properties": {
    "rmf": {
      "type": "number",
      "default": 0,
      "minimum": 0,
      "description": "Retirement Mutual Fund contribution, max deductible 500,000 THB."
    },
    "ssf": {
      "type": "number",
      "default": 0,
      "minimum": 0,
      "description": "Super Savings Fund contribution, max deductible 200,000 THB."
    },
    "donations": {
      "type": "number",
      "default": 0,
      "minimum": 0,
      "description": "Charitable donations, capped at 10% of income after allowances."
    },
    "pensionFund": {
      "type": "number",
      "default": 0,
      "minimum": 0,
      "description": "Max deductible 500,000 THB."
    },
    "taxWithheld": {
      "type": "number",
      "default": 0,
      "minimum": 0,
      "description": "Tax already withheld by the employer this year, used to compute refund vs. amount owed."
    },
    "annualIncome": {
      "type": "number",
      "minimum": 0,
      "description": "Total annual gross income in THB, before any deductions."
    },
    "lifeInsurance": {
      "type": "number",
      "default": 0,
      "minimum": 0,
      "description": "Max deductible 100,000 THB."
    },
    "maritalStatus": {
      "enum": [
        "single",
        "married"
      ],
      "type": "string",
      "default": "single"
    },
    "providentFund": {
      "type": "number",
      "default": 0,
      "minimum": 0,
      "description": "Max deductible 500,000 THB."
    },
    "isAge65OrOlder": {
      "type": "boolean",
      "default": false,
      "description": "Adds the 190,000 THB senior allowance."
    },
    "healthInsurance": {
      "type": "number",
      "default": 0,
      "minimum": 0,
      "description": "Max deductible 25,000 THB."
    },
    "numberOfParents": {
      "type": "integer",
      "default": 0,
      "maximum": 4,
      "minimum": 0,
      "description": "Dependent parents supported (30,000 THB each, max 4)."
    },
    "numberOfChildren": {
      "type": "integer",
      "default": 0,
      "minimum": 0
    },
    "spouseHasNoIncome": {
      "type": "boolean",
      "default": false,
      "description": "True if married and the spouse has no income (unlocks the 60,000 THB spouse allowance)."
    },
    "childrenBornOnOrAfter2018": {
      "type": "integer",
      "default": 0,
      "minimum": 0,
      "description": "2nd-or-later children born in 2018 or after qualify for a doubled (60,000 THB) allowance."
    },
    "socialSecurityContribution": {
      "type": "number",
      "default": 0,
      "minimum": 0,
      "description": "Annual social security fund contribution, max deductible 10,500 THB."
    }
  }
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 267 ms
95th percentile latency: 267 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 6, 2026, 3:59 PM UTC · probe · passed · 267 ms · metadata changed · 1 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http my-thai-taxes-mcp https://mythaitaxes-mcp.hannwill999.workers.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add my-thai-taxes-mcp --url https://mythaitaxes-mcp.hannwill999.workers.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable my-thai-taxes-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "my-thai-taxes-mcp": {
      "url": "https://mythaitaxes-mcp.hannwill999.workers.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "my-thai-taxes-mcp": {
      "type": "streamableHttp",
      "url": "https://mythaitaxes-mcp.hannwill999.workers.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start my-thai-taxes-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "my-thai-taxes-mcp": {
      "type": "http",
      "url": "https://mythaitaxes-mcp.hannwill999.workers.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http my-thai-taxes-mcp https://mythaitaxes-mcp.hannwill999.workers.dev/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.

Claude Desktop configuration

https://mythaitaxes-mcp.hannwill999.workers.dev/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "my-thai-taxes-mcp": {
      "serverUrl": "https://mythaitaxes-mcp.hannwill999.workers.dev/mcp"
    }
  }
}

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