| Rate | Income range | Amount in bracket | Tax at this rate |
|---|
How the US progressive tax system works
Only the income within each bracket is taxed at that rate - not your full income. So if you're in the 22% bracket, only the dollars above the 12% threshold are taxed at 22%. Your effective rate is always lower than your marginal rate.
How this calculator works
- Start with taxable income after the deduction choice shown on the page.
- Apply the IRS rate schedule for the selected filing status and tax year one bracket layer at a time.
- Summarize the result as total federal income tax, marginal rate, effective rate, and bracket detail.
Example scenario
A common planning case is a single filer with $85,000 of wages and the standard deduction. The calculator first reduces income by the selected deduction, then applies each federal tax bracket up to the remaining taxable amount, and finally shows the effective rate so the user can compare years side by side.
Direct sources for this page
Federal ordinary income brackets and rate structure.
2026 standard deduction and updated threshold figures.
Withholding and estimated tax planning background.
Related calculators
These are the closest follow-up tools for this topic, so a user can move from one planning question to the next without hunting through the full directory.
Explore all 16 calculators
QuickTaxTools includes 16 connected calculators covering filing, payroll, credits, deductions, capital gains, and digital assets. Everything below is linked and organized so it is easier to move between tools.
What this page is for
Estimate federal income tax using IRS tax brackets, filing status, and deduction choices. This tool helps W-2 workers, retirees, students, and households compare years and understand how progressive federal tax actually lands on taxable income.
How this is calculated: Start with taxable income after the selected deduction, apply each IRS bracket layer in order, then summarize the total as federal income tax, marginal rate, effective rate, and bracket detail.
Example: A single filer with $85,000 of wages first subtracts the standard deduction, then applies each bracket layer only to the income inside that band. The result shows both the total federal tax and the effective rate so the user can compare years side by side.
Supporting articles
Move through the site faster
Estimate federal income tax using IRS tax brackets, filing status, and deduction choices. This tool helps W-2 workers, retirees, students, and households compare years and understand how progressive federal tax actually lands on taxable income.