MCP server for US individual taxpayers — 39 tools for federal/state tax calculations, credits, deductions, retirement strategies, and tax planning. All calculations run locally. TY2024 + TY2025 (OBBB Act).

Federal tax calculation demo with Decimal-based 2024 brackets plus Claude document/audit agents kept outside the arithmetic path.

2026 Paycheck Calculator — Calculate take-home pay after taxes for all 50 states. https://thetaxcalc.com

Free 2026 Tax Calculator — Calculate paycheck, federal & state taxes, mortgage, 401(k), capital gains, and more. All 50 US states covered. https://thetaxcalc.com

2026 US Federal & State Tax Brackets — Free calculator at https://thetaxcalc.com

Bloomberg Tax Research provides tax professionals with comprehensive access to primary sources, expert practitioner analysis, portfolios, and tax news for conducting in-depth tax research.

Experimental software to surface potential overpayment, underpayment and other filing issues.

Free 2026 Federal Tax Calculator — Calculate your take-home pay at https://thetaxcalc.com

Bloomberg Tax (BTAX) is a comprehensive tax research, planning, and compliance platform providing tax professionals with authoritative primary sources, expert analysis, and practical tools.

These tools are primarily for those in or very near retirement and are looking to optimize their spending in retirement. High net worth (IRA Millionaire) folks are most likely to be interested.