How does the INSS calculation work?

The `calculate_inss_deduction` tool applies progressive rates to your gross earnings up to the established ceiling.

Can I compare different tax declaration methods?

Yes, use `evaluate_irpf_liability` to see if the Simplified or Complete method results in lower tax liability.

Does it handle 13th salary?

Yes, both INSS and IRPF calculations can be performed specifically for the 13th salary using the appropriate tool parameters.

Brazilian Income Tax & Social Security Calculator MCP Connector for Claude

A+

Calculate Brazilian IRPF and INSS deductions for 2024/2025.

3 tools Official Updated Oct 1, 2026 Official Vinkius Partner

More Details Connect to Claude

This MCP server provides a computational engine to calculate Brazilian Individual Income Tax (IRPF) and Social Security (INSS) liabilities. Using tools like calculate_inss_deduction, users can determine mandatory deductions from gross earnings. The evaluate_irpf_liability tool compares Simplified vs. Complete deduction methods, helping taxpayers find the most advantageous approach for the 2024/2025 fiscal period. Additionally, generate_payment_metadata assists in preparing DARF payment information.

brazilirpfinsstax-calculatorfinance-tools

Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_LpzG70Z0BRGoQ0rrnRYzqwDmKp1Wnzk1f6hL5AYv/mcp

② Claude Code (terminal)

claude mcp add --transport http brazilian-income-tax-social-security-calculator https://edge.vinkius.com/vk_preview_LpzG70Z0BRGoQ0rrnRYzqwDmKp1Wnzk1f6hL5AYv/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "brazilian-income-tax-social-security-calculator": {
      "url": "https://edge.vinkius.com/vk_preview_LpzG70Z0BRGoQ0rrnRYzqwDmKp1Wnzk1f6hL5AYv/mcp"
    }
  }
}

Get full access on Vinkius

The preview token above works for testing. Powered by Vinkius.