Income Tax Calculator
$
$
Total Tax$8,341.00
Effective Rate13.81%
Marginal Rate22%
After-Tax Income$66,659.00
Tax$8,341.00
Take Home$66,659.00
Tax Bracket Breakdown
| Bracket↕ | Rate↕ | Tax↕ |
|---|---|---|
| $0.00 - $11,600.00 | 10% | $1,160.00 |
| $11,600.00 - $47,150.00 | 12% | $4,266.00 |
| $47,150.00 - $100,525.00 | 22% | $2,915.00 |
Federal income tax is progressive, meaning different slices of your income are taxed at increasing rates rather than one flat percentage. This income tax calculator subtracts your deductions from gross income and then runs the result through the 2024 federal brackets for your filing status, reporting your total tax, the effective rate, your top marginal rate, and the income you keep after tax.
Formula
taxable = max(0, gross − deductions); tax = Σ (sliceᵢ × rateᵢ)
- gross
- Gross income before deductions
- deductions
- Total deductions you enter
- taxable
- Income subject to tax after deductions
- sliceᵢ × rateᵢ
- Each bracket portion of taxable income times that bracket’s rate
How it works
- Enter your gross income, select a filing status (single, married filing jointly, or head of household), and enter your total deductions.
- The calculator subtracts deductions from gross income to find taxable income (never below zero), then taxes it bracket by bracket using the 2024 federal rate schedule for your status.
- It shows the total tax, the effective rate (tax divided by taxable income), the marginal rate of your highest bracket, and your after-tax income (gross income minus tax).
Worked example
A single filer with $80,000 of gross income and $14,600 of deductions for the 2024 tax year.
- Taxable income: 80,000 − 14,600 = $65,400.
- Bracket tax: 10% of 11,600 = $1,160; 12% of (47,150 − 11,600) = $4,266; 22% of (65,400 − 47,150) = $4,015.
- Total tax: 1,160 + 4,266 + 4,015 = $9,441; effective rate = 9,441 ÷ 65,400 = 14.44%.
Total federal tax $9,441, effective rate 14.44%, marginal rate 22%, and after-tax income $70,559.
Frequently asked questions
- What is the difference between the effective and marginal rate?
- The marginal rate is the rate on your last dollar of taxable income, which is your top bracket. The effective rate is your total tax divided by your taxable income, which is always lower because earlier income is taxed at lower bracket rates.
- Which tax year does this calculator use?
- It uses the 2024 federal income tax brackets and rate schedule for single, married-filing-jointly, and head-of-household filers. It does not include state income tax, credits, or the alternative minimum tax.
- Should I enter the standard deduction in the deductions field?
- Yes, if you take the standard deduction enter that amount (for 2024 it is $14,600 single, $29,200 married jointly, $21,900 head of household). If you itemize, enter your total itemized deductions instead.