Calcs4All

APR 23 · 2026

Income tax calculator

Estimate 2025 U.S. federal income tax owed from gross income, filing status, and deduction choice.

What this calculator covers

Use this income tax calculator to estimate 2025 U.S. federal income tax from annual gross income, filing status, and either the standard deduction or an itemized deduction amount.

The walkthrough keeps taxable income, total federal tax owed, effective rate, and marginal bracket visible so you can see how the progressive bracket stack produces the result.

This model is federal only. It does not include state income tax, payroll tax, credits, AMT, or the extra standard deduction rules for age or blindness.

Frequently asked questions

What is the difference between my effective tax rate and my marginal rate?
Your marginal rate is the bracket that applies to your last dollar of taxable income. Your effective rate is total federal tax owed divided by gross income — it is always lower than your marginal rate because only the income inside each bracket is taxed at that bracket's rate.
How does the standard deduction reduce my tax bill?
The standard deduction is subtracted from gross income before any brackets are applied, directly reducing the amount of income that gets taxed. Choosing to itemize makes sense only when your deductible expenses exceed the standard deduction for your filing status.
Does this calculator include FICA or Social Security taxes?
No. Payroll taxes (Social Security and Medicare) are separate from federal income tax and are not included in this estimate. They apply to earned income regardless of filing status or deductions.
The brackets change each year — is this calculator up to date?
This calculator uses 2025 federal income tax brackets and 2025 standard deduction amounts. Because brackets are adjusted periodically for inflation, check IRS guidance for figures in future tax years.

Tool

Run the calculation

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RESULT · FEDERAL TAX

â„–120

Primary result

$12,349.00

Single filers with $95,000.00 of gross income and a standard deduction of $15,750.00 owe $12,349.00 in 2025 federal income tax, an effective rate of 13.00%.

Gross income
$95,000.00
Deduction used
$15,750.00
Taxable income
$79,250.00
Federal tax owed
$12,349.00
Effective rate
13.00%
Marginal bracket
22% bracket from $48,475.00 to $103,350.00

Step-by-step solution

  1. 1.Start with gross income of $95,000.00 and subtract the standard deduction of $15,750.00 to reach taxable income of $79,250.00.
  2. 2.Apply the 2025 federal tax brackets progressively so each slice of taxable income is taxed only at that bracket's rate. The highest slice here is 22% on $30,775.00.
  3. 3.Add the bracket taxes to reach $12,349.00, which works out to an effective rate of 13.00% on gross income and lands in the 22% bracket from $48,475.00 to $103,350.00.

Walkthrough

Visual walkthrough

Federal income tax is progressive, so deductions reduce taxable income first and then each bracket taxes only the slice that lands inside it.

  1. 01

    Start with gross income

    The calculation begins with $95,000.00 of annual gross income for Single filing status.

    $95,000.00

  2. 02

    Subtract deductions to find taxable income

    $95,000.00 - $15,750.00 = $79,250.00

    Only taxable income enters the bracket stack, and this calculator uses either the 2025 standard deduction or the itemized amount you entered.

  3. 03

    Stack the progressive brackets

    Each bracket taxes only its own portion of taxable income, then the bracket taxes are added together for total federal income tax owed.

    $12,349.00 tax | 22% marginal