Finance Calculators
2026 US Federal Income Tax Calculator
Estimate 2026 US federal ordinary income tax from taxable income and filing status using IRS tax brackets.
United States federal
Federal income tax estimate
Scope and limitations
This estimate applies the 2026 US federal ordinary-income tax brackets to the taxable income entered. It does not calculate deductions, credits, withholding, payroll taxes, self-employment tax, state or local taxes, preferential capital-gain rates, penalties, refunds or other tax rules. It is an estimate and not tax advice.
Schedule verified 2026-07-26. Jurisdiction: United States federal. Income basis: ordinary taxable income.
Quick answers
What this calculator answers
- Scope: Estimates 2026 US federal ordinary income tax from taxable income and filing status.
- Method: Applies each marginal rate only to the income slice inside that bracket.
- Limit: Does not calculate deductions, credits, withholding, payroll taxes, state taxes, or final liability.
Transparency note
Accuracy and limitations
Calzivo tools are built for practical estimates, conversions, and checks. Some tools use standard formulas or simplified assumptions, and results can be affected by input accuracy, rounding, units, local rules, or changing official requirements.
Tax results are general estimates, not tax or legal advice. Rates, exemptions, filing rules, and local requirements can change, so verify important results with official sources.
Reference check
Sources and references
These references provide background context for the topic. They do not replace official advice or documents for personal decisions.
- IRS Publication 505 (2026)
Internal Revenue Service
- IRS Revenue Procedure 2025-32
Internal Revenue Service
- IRS taxable-income information
Internal Revenue Service
How to Use This Tool
Use these steps to enter the right inputs and interpret the result correctly.
Choose the filing status that applies to the estimate.
Enter 2026 taxable income after applicable deductions.
Calculate to see the progressive bracket estimate and breakdown.
Review the limitations and official IRS sources before using the estimate.
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Frequently Asked Questions
Common questions about 2026 US Federal Income Tax Calculator and how to read the result.
What income should I enter?
Enter taxable income after applicable deductions. Do not enter gross wages unless that figure is also your taxable income.
Does this calculate deductions or credits?
No. The estimate starts with the taxable-income amount you provide and applies only the 2026 ordinary-income brackets.
Why is the effective rate below the marginal rate?
The marginal rate applies only to the highest taxable slice, while the effective rate compares total estimated tax with all taxable income.
Is this a final federal tax liability?
No. It is a bracket-based estimate and does not include many rules that can affect an actual return.