MCP For Claude Marketplace
US State Tax Calculator

US State Tax Calculator MCP Connector for Claude

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Calculate US state income tax rates and liabilities based on residency and taxable income.

3 tools Official Updated Jun 28, 2026 Official Vinkius Partner
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This MCP server provides a specialized utility for determining US state income tax liabilities. By connecting your AI agent to this tool, you can instantly retrieve the specific tax rate for any of the 5 and identify states with no income tax. Use get_state_rate to find the decimal rate for a state, calculate_state_liability to compute total tax owed based on taxable income, and list_no_tax_states to see which jurisdictions like Texas or Florida have zero percent taxation. It acts as a bridge between your AI client--such as Cursor, VS Code, Claude Desktop, or Windsurf--and accurate US state tax data.

us-taxincome-taxstate-ratescalculatorfinance-tools

3 tools expose this connector's capabilities to your AI agent.

calculate_state_liability

Calculate the total state income tax liability

get_state_rate

Retrieve the tax rate for a specific US state

list_no_tax_states

List all US states with no state income tax

See how to talk to your AI agent using US State Tax Calculator.

What is the income tax rate in California?

The income tax rate for California is 0.08.

If I earned $50,000 in Texas, how much state income tax do I owe?

Since Texas is a zero-tax state, your state income tax liability is $0.00.

How much tax will I owe in New York on $100,000 of taxable income?

Based on the current rate for New York, your estimated state tax liability is $6,500.00.

Use the `get_state_rate` tool by providing the full name of the US state, such as 'California'.

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