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Compare & Reverse Tools

The edge over AI assistants and one-number calculators: side-by-side, multidimensional comparison and reverse solving.

State vs State

Marginal and effective rates across any two of 50 states + DC, with local taxes.

Single vs Married

How filing status moves your bracket and deductions at the same income.

Standard vs Itemized

Whether itemizing beats the 2026 standard deduction given your facts.