Use our free US federal income tax calculator to estimate taxable income, federal income tax, standard deduction, itemized deduction, tax credits, refund, or amount owed for Tax Year 2026.
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This calculator uses the local US tax-rate file configured for Tax Year 2026. It estimates regular federal income tax using filing status, deductions, credits, and withholding. A complete IRS return can include many additional rules, schedules, forms, limitations, and credits.