US Income Tax Calculator MCP Connector for Claude

A specialized calculation engine for determining US federal, state, and local income tax liabilities. The MCP server provides tools to calculate the split between ordinary income, capital gains, and NIIT, as well as computing combined state/local taxation for all 50 states. Use calculate_self_employment_impact to determine SECA tax liability and deductible portions of self-employment income. Additionally, use apply_credits_and_deductions to calculate final adjustments including standard deductions, Child Tax Credit phase-outs, and EITC. The server also supports calculating state/local taxes via calculate_state_local_taxation for jurisdictions like NYC or DC.