How to Use the US LLC Tax Comparator MCP in Claude

Q: How do I install the US LLC Tax Comparator on Claude Desktop?

Open your claudedesktopconfig.json file and add the server to your configuration. Once you restart the application, your agent can access the tax tools directly.

Stop guessing your business tax bill. Run instant state and federal entity comparisons right inside Claude Desktop.

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Connect US LLC Tax Comparator MCP to Claude Desktop

Create your Vinkius account to connect US LLC Tax Comparator to Claude Desktop — we handle the hosting, security, and runtime updates so you don't have to. No server setup required.

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Setup US LLC Tax Comparator with Claude Desktop

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Run instant entity comparisons in Claude Desktop

The `calculate_tax_comparison` tool lets you compare different business structures side by side right inside your chat window. It pulls federal and state rules directly into your conversation so you can see exactly how a partnership or C-Corp stacks up against a standard LLC. Your agent runs these scenarios instantly. It calculates estimated self-employment, income, and corporate taxes based on your current revenue projections.

Evaluate S-Corp savings on the fly

Use `evaluate_s_corp_savings_potential` to analyze your business revenue against a reasonable W-2 salary. Moving to an S-Corp can save you thousands in self-employment taxes, but only if your net income justifies the extra payroll admin. This tool gives you a clear breakdown of the net savings after factoring in payroll taxes. It helps you decide if the transition is actually worth the overhead before you file the election with the IRS.

Get local tax rules with this MCP Server

The `get_state_tax_context` tool pulls local tax rates and filing requirements directly into your active chat. State taxes can make or break your business structure decision, especially in states with high franchise fees. Your agent pulls the exact state-level details you need without digging through outdated state government websites. You get instant access to local tax environments.

Setup guide

Set up US LLC Tax Comparator MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The US LLC Tax Comparator MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the US LLC Tax Comparator MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under us-llc-tax-comparator-mcp.

json

{
  "mcpServers": {
    "us-llc-tax-comparator-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by US LLC Tax Comparator. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about US LLC Tax Comparator MCP in Claude Desktop

Open your claude_desktop_config.json file and add the server to your configuration. Once you restart the application, your agent can access the tax tools directly.

Yes. The tool looks up specific state rules to find franchise fees and filing costs. It factors these local expenses directly into your overall tax projection.

Yes. This MCP runs via local stdio transport on your machine. Your financial data stays private and runs directly through your local configuration.

Yes. You can ask your agent to run a side-by-side comparison. It will weigh double taxation against self-employment tax rates.

It only processes the revenue and expense figures you type into your chat. It does not connect to your bank accounts or store your business tax returns.

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