Finance calculator
United States - Tax year 2026US Federal Income Tax Calculator
Estimate 2026 US federal ordinary income tax from filing status, deduction choice, taxable income, and credits.
Formula
US federal ordinary income tax estimate
This simplified calculator estimates ordinary federal income tax only. It excludes state tax, AMT, special-rate income, many credit rules, and filing-specific adjustments.
Taxable income = gross income - deduction; federal tax = bracket tax - tax credits
For a single filer with 95,000 gross income and the 2026 standard deduction, taxable income is 79,250 and ordinary bracket tax is estimated from the 2026 IRS brackets.
Sources and assumptions
US federal income tax source notes
This profile covers a simplified United States individual federal income tax estimate for tax year 2026. It applies the 2026 standard deduction, ordinary income brackets, selected filing status, and user-entered credits.
- Effective year
- Tax year 2026
- Last verified
- 2026-05-28
This simplified calculator estimates ordinary federal income tax only. It excludes state tax, AMT, special-rate income, many credit rules, and filing-specific adjustments.
Official and reference sources
Assumptions
- Income is ordinary federal taxable income before the selected deduction.
- The calculator applies either the 2026 standard deduction or the itemized deduction amount entered by the user.
- Tax credits entered by the user reduce ordinary federal income tax dollar for dollar, not below zero.
- Marginal rate is based on the tax bracket containing taxable income.
Not included
- State, local, self-employment, AMT, NIIT, Additional Medicare, penalty, and withholding calculations.
- Qualified dividends, long-term capital gains, Social Security taxation, child tax credit rules, EITC, education credits, and phase-outs.
- Senior deduction, dependent rules, itemized deduction limits for the highest bracket, and special filing situations.
FAQs
Which tax year does this US federal tax calculator use?+
It uses tax year 2026 ordinary income brackets and standard deduction amounts from IRS inflation adjustment guidance.
Does this include state income tax?+
No. It estimates federal ordinary income tax only and does not include state, local, payroll, AMT, or special-rate income tax.
How does the US Federal Income Tax Calculator calculate the result?+
It uses the US federal ordinary income tax estimate: Taxable income = gross income - deduction; federal tax = bracket tax - tax credits. For a single filer with 95,000 gross income and the 2026 standard deduction, taxable income is 79,250 and ordinary bracket tax is estimated from the 2026 IRS brackets.
What information do I need to use the US Federal Income Tax Calculator?+
Estimate 2026 US federal ordinary income tax from filing status, deduction choice, taxable income, and credits.
How accurate is the US Federal Income Tax Calculator?+
US Federal Income Tax Calculator applies the formula and assumptions shown on this page. Results may be rounded for readability, so verify changing rates, thresholds, medical guidance, or legal rules with the cited source or a qualified professional.
What should I check before using the US Federal Income Tax Calculator result?+
Check that the units, dates, rates, and assumptions match your situation. Change one input at a time to understand which values have the largest effect on the result.
Finance guide
How to use the US Federal Income Tax Calculator
Estimate 2026 US federal ordinary income tax from filing status, deduction choice, taxable income, and credits. The page also explains the US federal ordinary income tax estimate and shows a practical example: For a single filer with 95,000 gross income and the 2026 standard deduction, taxable income is 79,250 and ordinary bracket tax is estimated from the 2026 IRS brackets.
- 1
Enter your details
Enter filing status, deduction choice, taxable income, and credits, then complete any other fields shown in the calculator.
- 2
Check the calculation
Review the result alongside the US federal ordinary income tax estimate: Taxable income = gross income - deduction; federal tax = bracket tax - tax credits.
- 3
Compare scenarios
Change one or more inputs to see how they affect the US Federal Income Tax Calculator result before you use the estimate.
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