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NL Tax Calculator

Official registry Finance and payments

Dutch tax: net salary, full tax return, Box 3 and refunds, ZZP, mortgage, toeslagen, visa salary.

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http nl-tax-calculator 'https://nltaxcalculator.nl/dutch-tax/api/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "nl-tax-calculator": {
            "type": "http",
            "url": "https://nltaxcalculator.nl/dutch-tax/api/mcp"
        }
    }
}

Frequently asked questions

What is NL Tax Calculator?

Dutch tax: net salary, full tax return, Box 3 and refunds, ZZP, mortgage, toeslagen, visa salary.

How do I install NL Tax Calculator?

It runs as a remote server. In Claude Code: claude mcp add --transport http nl-tax-calculator 'https://nltaxcalculator.nl/dutch-tax/api/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does NL Tax Calculator need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Who maintains NL Tax Calculator?

It is published by nl.nltaxcalculator. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.