Tax bracket calculator

Did you know?

Someone earning $95,000 (single filer) is "in the 22% bracket" but pays an effective federal rate of about 14.5%. The 22% rate only applies to dollars between $47,150 and $95,000. The first $11,600 is taxed at 10%, the next $35,550 at 12%. You never lose money by earning more.

$8,253.00
Estimated federal income tax (2024)
Effective rate
13.76%
Marginal rate
22.00%

Good to know

Tax brackets apply to taxable income, not gross. If you earn $80,000 and take the $14,600 standard deduction (single filer, 2024), your taxable income is $65,400. That's what the brackets apply to. High earners with large deductions can significantly reduce their taxable income.

The "raise pushes me into a higher bracket" fear is misguided. Only income above the bracket threshold is taxed at the higher rate. If the 22% bracket starts at $47,150 and you earn $47,000, then get a $10,000 raise, only $9,850 of that raise is taxed at 22%. You always keep more money by earning more.

Payroll taxes are flat and regressive. Social Security tax (6.2%) applies to the first $168,600 of income (2024), then stops. Medicare (1.45%) has no cap. Someone earning $160,000 pays the same Social Security as someone earning $500,000.

Reading federal income tax results

Marginal and effective rates answer different questions. Marginal is the rate on the next dollar—helpful for Roth vs traditional decisions. Effective is average burden—helpful for comparing countries, years, or job offers. This calculator follows IRS progressive brackets for the selected year and filing status, then shows how slices of income stack.

Real returns still need credits, withholding, self-employment tax, and state rules. Use the output as a teaching tool or sanity check, not a substitute for filing software or a CPA when life gets complicated.

When you cite Howdeedo, include taxable income assumptions and the tax year. The methodology block lists formula id, assumptions, and engine version for reproducibility.

Trust & methodology: Editorially reviewed by the Howdeedo team. Content last reviewed March 2026. Calculation engine version 0.1.0. Open the section below for formula, assumptions, and sources.

Methodology & assumptions
progressive-tax

Assumptions

  • Uses official US Federal tax brackets for specified year (2023, 2024, or 2025)
  • Progressive taxation: different rates for income ranges
  • Marginal rate: rate on last dollar earned
  • Effective rate: average tax rate on total income
  • Standard deductions vary by filing status and year
  • FICA: Social Security capped at year-specific wage base ($160,200 in 2023, $168,600 in 2024, $176,100 in 2025), Medicare uncapped, Additional Medicare 0.9% above threshold
  • State tax is simplified flat rate on gross income
  • Does not include tax credits, AMT, NIIT, or complex deductions
  • For W-4 withholding adjustments, use the official IRS Tax Withholding Estimator

References

Methodology, disclaimers & sources

How it works

  • Apply each bracket to income within that range
  • Sum all bracket amounts for total tax
  • Effective rate = Total tax ÷ Total income
  • Marginal rate = Bracket of highest income dollar

Details & assumptions

2024 federal brackets. Single or married filing jointly. Taxable income (after deductions). Does not include state, local, or payroll taxes.

2024 federal brackets. This is an estimate, not tax advice. Consult a tax professional for your specific situation.

More about tax brackets

Frequently asked questions

Example scenarios