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Augusta rule calculator

Days × documented market rate × your marginal rate. The rules and documentation that make it stick are in the guide.

State rates are approximate 2026 top marginal rates for single filers (editable) — graduated brackets, local taxes (e.g., Maryland counties), and special levies (e.g., Washington capital gains) are not modeled.

At 15+ days, ALL the income becomes taxable — the calculator caps you at 14 on purpose. Requires a separate entity (S-corp/partnership), real meetings, and documented comparable rates.

Educational estimate only — simplified assumptions, not tax advice, and not a substitute for a calculation on your actual return. Limits and rates change annually.