Income Tax Calculator

This tool estimates U.S. federal income tax from wages, investment income, deductions, credits, and withholding. Select tax year 2025 or 2026 and filing...

Modify the values and click the Calculate button to use.
Results

Enter values and click Calculate.

Schedule

Related: Estate Tax CalculatorTake-Home-Paycheck CalculatorSalary CalculatorMarriage Tax Calculator

Introduction

This tool estimates U.S. federal income tax from wages, investment income, deductions, credits, and withholding. Select tax year 2025 or 2026 and filing status to apply progressive brackets and standard deduction amounts.

Federal Income Tax Estimate

This tool estimates U.S. federal income tax from wages, investment income, deductions, credits, and withholding. Select tax year 2025 or 2026 and filing status to apply progressive brackets and standard deduction amounts.

Adjusted Gross Income

Wages, taxable interest, dividends, capital gains, and other income sum to total income. Above-the-line adjustments (if entered) reduce AGI. AGI drives credit phase-outs and deduction limits.

Deductions and Credits

Standard deduction simplifies filing for most taxpayers. Itemize when mortgage interest, state taxes (SALT cap applies), and charitable gifts exceed the standard amount. Child tax credit reduces tax dollar-for-dollar for qualifying dependents.

Refund vs Amount Owed

Compare federal withholding and estimated payments to calculated tax. A large refund means you over-withheld—an interest-free loan to the government. Balance due signals planning needs for quarterly estimates.

Read More

Tax planning strategies for 2026. Pair with Take-Home-Paycheck Calculator and Salary Calculator.

How It Works

  1. Enter your amounts, rates, and term in the form. Use the same units shown in the labels (dollars, years, percent).
  2. Click Calculate to run the Income Tax Calculator engine. Invalid or empty required fields show a clear error message.
  3. Review the summary cards for the key outputs. Expand schedules or tables when available for period-by-period detail.
  4. Copy, print, or share your scenario link. Reset the form anytime to start a fresh comparison.

Formula

Taxable income = AGI minus standard or itemized deductions. Federal tax applies progressive brackets to ordinary income; qualified dividends and long-term gains use preferential rates. Credits reduce tax dollar-for-dollar; refund equals withholding minus tax owed.

FAQ

Yes. CDCalculator.io provides the Income Tax Calculator at no charge for personal and educational use. Results are estimates and not financial advice.

The tool uses standard formulas lenders and planners use in spreadsheets. Your bank may round differently or include fees not modeled here.

Use the Copy Results and Print buttons on the calculator panel after you run a scenario. You can also share the page link with colleagues.

Focus on realistic rates, terms, and any extra payments or contributions. Small changes in APR or time horizon often move outcomes more than rounding.

No. Use this calculator to explore scenarios, then consult a qualified advisor or lender for decisions about tax & salary products.