Income Tax Calculator

Estimate federal income tax using 2026 rates, with marginal and effective tax rates.

What is an Income Tax Calculator?

Estimate your federal income tax using 2026 brackets. See marginal and effective rates with a bracket-by-bracket breakdown.

How to Use

Using the income tax calculator is very simple:

  • Enter your values in the input fields
  • Click the calculate button
  • View the results instantly

Tips

  • Double-check your inputs for accurate results
  • This tool is for estimation - consult a professional for important decisions
  • Save your results for future reference

Frequently Asked Questions

How do tax brackets work?+
Tax brackets are marginal - only the income within each bracket is taxed at that rate. Being 'in the 24% bracket' does not mean all your income is taxed at 24%. The first $11,925 (single) is taxed at 10%, the next portion at 12%, and so on.
What is the difference between marginal and effective tax rates?+
Your marginal tax rate is the bracket your last dollar falls into. Your effective tax rate is total tax divided by total income. Someone earning $85,000 (single) has a marginal rate of 22% but an effective rate of only about 14%.
Should I take the standard deduction or itemize?+
Take whichever is larger. The 2026 standard deduction is $15,700 (single) or $31,400 (married). Only itemize if your deductible expenses (mortgage interest, state/local taxes up to $10,000, charitable donations) exceed the standard deduction.

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