NL Tax Calculator

Overview

NL Tax Calculator is a Model Context Protocol server that brings Dutch tax expertise into your AI assistant. It handles net salary calculations, full tax returns, Box 3 assessments, refunds, ZZP self-employed income, mortgage deductions, toeslagen benefits, and visa salary requirements. The server exposes these capabilities as tools your AI can invoke directly.

NL Tax Calculator runs as a remote server hosted at https://nltaxcalculator.nl/dutch-tax/api/mcp. No authentication is required, and there's nothing to install locally—just point your MCP client at the endpoint. The latest release is v1.1.0.

You'll find this server in the Development category on mcp.site. It works with Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and other MCP clients. If you maintain NL Tax Calculator at nltaxcalculator.nl, you're invited to claim this listing to verify ownership and keep information current.

Installation

Settings → Connectors → Add custom connector
Name: NL Tax Calculator
URL:  https://nltaxcalculator.nl/dutch-tax/api/mcp