Finance calculators

Effective Tax Rate Calculator

Updated Sep 10, 2026 By Jehan Wadia
5.0 · Rate Formulas Sources
Your Tax Details

This tool estimates U.S. federal income tax only. State and local taxes are not included.

Enter your total income before any deductions or taxes.
Traditional IRA contributions may reduce your taxable income. Limits apply.
Standard deduction for your filing status: $0

Your Federal Tax Estimate

Effective Tax Rate
0.00%
Marginal Tax Rate
0%
Total Federal Tax
$0
After-Tax Income
$0
Calculation Breakdown
Gross Annual Income$0
Less: IRA Contributions−$0
Adjusted Gross Income (AGI)$0
Less: Applicable Deduction−$0
Taxable Income$0
Deduction Method UsedStandard
Total Federal Tax Liability$0
Effective Tax Rate0.00%
Marginal Tax Rate0%
Tax Saved by Deductions & IRA$0
Income Allocation
Tax by Bracket
Bracket Rate Income Range Taxable in Bracket Tax in Bracket

Introduction

Your effective tax rate is the actual percentage of your income that goes to federal taxes. It is different from your marginal tax rate, which is the rate you pay on your last dollar of income. Because the U.S. uses a progressive tax system, you pay lower rates on your first dollars earned and higher rates as your income grows. This means your effective tax rate is always lower than your top tax bracket.

This Effective Tax Rate Calculator helps you estimate your federal income tax for the 2024, 2025 or 2026 tax year. Enter your gross income, filing status, IRA contributions, and deduction method. The tool then calculates your total tax owed, your effective and marginal tax rates, and your after-tax income. It also shows a full breakdown of how much tax you owe in each bracket so you can see exactly where your money goes.

How to Use Our Effective Tax Rate Calculator

Enter your income and tax details below to find out how much federal income tax you owe, your effective tax rate, and how much money you keep after taxes.

Tax Year: Pick the tax year you want to calculate for. Choose 2024, 2025 or 2026.

Filing Status: Select how you file your taxes. Choose Single, Married Filing Jointly, Married Filing Separately, or Head of Household.

Gross Annual Income: Type in the total money you earned for the year before any taxes or deductions are taken out.

IRA Contributions: Enter how much you put into a Traditional IRA. This amount lowers your taxable income.

Deduction Method: Pick Standard Deduction to use the fixed amount set by the IRS for your filing status. Pick Itemized Deductions if you want to enter your own total. The calculator will use whichever saves you more money.

Total Itemized Deductions: If you chose Itemized, type in the total of all your deductions like mortgage interest, charitable gifts, and state taxes paid.

Click Calculate to see your results. The tool shows your effective tax rate, marginal tax rate, total federal tax, after-tax income, a full breakdown, and a chart of tax paid by bracket.

What Is an Effective Tax Rate?

Your effective tax rate is the actual percentage of your total income that you pay in federal taxes. It is different from your marginal tax rate, which is the rate you pay on your last dollar of income. Because the U.S. uses a progressive tax system, your income is taxed in chunks called tax brackets. The first chunk is taxed at a low rate, and each chunk after that is taxed a little higher. Your effective tax rate averages all of these rates together based on what you actually owe.

How This Calculator Works

This calculator estimates your U.S. federal income tax for the 2024, 2025 or 2026 tax year. You enter your gross income, filing status, IRA contributions, and deduction method. The tool then subtracts your IRA contributions to find your Adjusted Gross Income (AGI). Next, it subtracts either the standard deduction or your itemized deductions, whichever is larger. The amount left over is your taxable income. The calculator applies the correct federal tax brackets to that taxable income and shows you exactly how much tax falls in each bracket.

Key Terms to Know

  • Gross Income: All the money you earn before any deductions or taxes are taken out.
  • Adjusted Gross Income (AGI): Your gross income minus certain allowed adjustments, like traditional IRA contributions.
  • Standard Deduction: A fixed dollar amount the IRS lets you subtract from your AGI. The amount depends on your filing status.
  • Itemized Deductions: Specific expenses you can list instead of taking the standard deduction, such as mortgage interest, charitable donations, and state taxes paid.
  • Taxable Income: The portion of your income that is actually subject to federal tax, after all deductions are applied.
  • Marginal Tax Rate: The tax rate applied to your highest dollar of taxable income.
  • Effective Tax Rate: Your total federal tax divided by your gross income, shown as a percentage.

Why Your Effective Tax Rate Matters

Knowing your effective tax rate helps you understand how much of your paycheck actually goes to federal taxes. It also helps you see how deductions and IRA contributions lower your tax bill. For example, if you earn $85,000 and owe $10,000 in federal tax, your effective tax rate is about 11.8%, even though your marginal rate may be 22%. This difference exists because only part of your income is taxed at the higher rates. Understanding this can help you make smarter decisions about saving, investing, and planning for tax season.

If you're self-employed, keep in mind that you also owe self-employment tax on top of federal income tax. If you have investment gains, capital gains tax rates apply to profits from selling stocks, real estate, and other assets. And if you received a bonus this year, that extra income is taxed as well. Planning ahead can also help you find ways to reduce your taxable income and lower your effective tax rate over time.

Formulas used

Adjusted Gross Income (AGI)
\text{AGI} = \text{Gross Income} - \text{IRA Contributions}
Taxable Income
\text{Taxable Income} = \max(0,\; \text{AGI} - \text{Applicable Deduction})
Federal Tax (Progressive Brackets)
T = \sum_{i=1}^{n} r_i \times \min\!\bigl(\text{Taxable Income},\, U_i\bigr) - L_i)^{+}
Effective Tax Rate
\text{ETR} = \frac{T}{\text{Gross Income}} \times 100\%
After-Tax Income
\text{After-Tax Income} = \text{Gross Income} - T
Tax Saved by Deductions & IRA
\text{Savings} = T_{\text{no deductions}} - T

Frequently asked questions

What is the difference between effective tax rate and marginal tax rate?

Your effective tax rate is the total percentage of your gross income you pay in federal tax. Your marginal tax rate is the rate on your last dollar of income. The effective rate is always lower because your first dollars are taxed at lower rates.

How is the effective tax rate calculated?

The calculator divides your total federal tax owed by your gross annual income and multiplies by 100. For example, if you owe $10,000 on $85,000 of income, your effective tax rate is about 11.76%.

Should I pick standard deduction or itemized deductions?

Pick itemized deductions if your total deductions (mortgage interest, charitable gifts, state taxes paid, etc.) add up to more than the standard deduction. If they don't, the calculator will automatically use the standard deduction since it saves you more money.

What are the standard deduction amounts for 2025?

For tax year 2025, the standard deduction is $15,000 for Single and Married Filing Separately, $30,000 for Married Filing Jointly, and $22,500 for Head of Household.1 For tax year 2026 it rises to $16,100 for Single and Married Filing Separately, $32,200 for Married Filing Jointly, and $24,150 for Head of Household.5

What are the standard deduction amounts for 2024?

For tax year 2024, the standard deduction is $14,600 for Single and Married Filing Separately, $29,200 for Married Filing Jointly, and $21,900 for Head of Household.2

Do Roth IRA contributions reduce my taxable income?

No. Only Traditional IRA contributions can lower your taxable income.3 Roth IRA contributions are made with after-tax money, so they do not give you a tax deduction now.3 For 2026 the IRA contribution limit is $7,500, with an extra $1,100 catch-up contribution if you are 50 or older.6

Why is my effective tax rate so much lower than my tax bracket?

The U.S. has a progressive tax system. Only the income within each bracket is taxed at that bracket's rate. Your lower income is taxed at 10% and 12% first.1 This pulls your overall average rate well below your top bracket.

What does the Tax Saved by Deductions and IRA number mean?

This shows how much less federal tax you owe because of your deductions and IRA contributions. The calculator compares your tax with those benefits to what your tax would be on your full gross income with no deductions or IRA.

What filing status should I choose if I am not married but have a child?

If you are unmarried and pay more than half the cost of keeping up a home for a qualifying child, you likely qualify for Head of Household.4 This gives you a larger standard deduction and wider tax brackets than filing as Single.4

Can my effective tax rate ever be zero?

Yes. If your gross income is low enough that your deductions reduce your taxable income to $0, you owe no federal income tax and your effective tax rate is 0%.

Sources

  1. IRS releases tax inflation adjustments for tax year 2025. Internal Revenue Service. 2024;IR-2024-273. Accessed September 10, 2026.
  2. IRS provides tax inflation adjustments for tax year 2024. Internal Revenue Service. 2023;IR-2023-208. Accessed September 10, 2026.
  3. Topic no. 451, Individual retirement arrangements (IRAs). Internal Revenue Service. Accessed September 10, 2026.
  4. Publication 501, Dependents, Standard Deduction, and Filing Information. Internal Revenue Service. Head of Household. Accessed September 10, 2026.
  5. IRS releases tax inflation adjustments for tax year 2026, including amendments from the One, Big, Beautiful Bill. Internal Revenue Service. 2025;IR-2025-103. Accessed September 10, 2026.
  6. 401(k) limit increases to $24,500 for 2026, IRA limit increases to $7,500. Internal Revenue Service. 2025. Accessed September 10, 2026.

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