Enables AI assistants to compute US take-home pay, self-employment taxes, and capital gains taxes for the 2026 tax year using the engine from statetakehome.com.
Current, source-cited US federal tax constants and freelancer calculators for tax year 2026, including the July 1 mid-year mileage change. Every response carries its IRS/SSA primary source and a last-verified date; refuses rather than guesses.
39 tax tools for US individual taxpayers — federal/state tax calculations, credits, deductions, retirement strategies, audit risk, and tax planning. All calculations run locally, no data leaves the machine. Supports TY2024 and TY2025 (One Big Beautiful Bill Act).
Enables AI agents to calculate US household employer (nanny) taxes for all 50 states plus DC, including Social Security, Medicare, FUTA, and state unemployment, through natural language.
Deterministic US equity-compensation tax optimizer. Six tools cover ISO/AMT exercise scheduling, NSO sell-vs-hold, RSU vest-and-sell, single-stock concentration, protective put / zero-cost collar pricing, and Section 1202 QSBS qualification. Federal plus 50-state plus DC tax math.
Computes Japanese payroll, social insurance, and labour law obligations—such as premiums, withholding tax, and minimum wage—citing the statute each answer relies on, enabling auditable calculations through an AI assistant.