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Income Tax Calculator

Select the year and input the required parameters to calculate the tax rate and amount you need to return to your state’s government, obeying federal taxation law through this calculator.

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Income Tax Calculator

The Income Tax Calculator helps estimate federal tax refunds or amounts owed for U.S. residents. It uses the 2023–2024 IRS tax brackets for 1040-ES estimation, planning, and comparison.

What is Federal Income Tax?

The Internal Revenue Service (IRS) administers federal income tax, one of the largest revenue sources for the U.S. government. Every working American is legally required to file a federal income tax return annually. Many taxpayers also pay taxes throughout the year via payroll withholding.

Taxable Income

Before paying taxes, calculate your taxable income using the following steps:

  • Estimate your gross income.
  • Subtract deductions and exemptions, such as contributions to a 401(k) or pension plan.
  • The resulting figure is your taxable income.
  • Use a federal tax calculator to determine your taxes based on this amount.

Other Taxable Income

  • Interest income
  • Short-term capital gains/losses
  • Long-term capital gains/losses
  • Ordinary dividends
  • Qualified dividends
  • Passive income

Tax Brackets

The U.S. federal income tax system has seven rates: 10%, 12%, 22%, 24%, 32%, 35%, and 37%. Tax brackets determine the rate applied to your taxable income. Federal income tax is calculated using the IRS 2023–2024 brackets.

2023–2024 Tax Brackets: Single Filers

Tax Rate Taxable Income Bracket Tax Owed
10% $0 – $11,600 10% of taxable income
12% $11,601 – $47,150 $1,160 + 12% of amount over $11,600
22% $47,151 – $100,525 $5,426 + 22% of amount over $47,150
24% $100,526 – $191,950 $17,168.50 + 24% of amount over $100,525
32% $191,951 – $243,725 $39,110.50 + 32% of amount over $191,950
35% $243,726 – $609,350 $55,678.50 + 35% of amount over $243,725
37% $609,351 or more $183,647.25 + 37% of amount over $609,350

2023–2024 Tax Brackets: Married Filing Jointly

Tax Rate Taxable Income Bracket Tax Owed
10% $0 – $23,200 10% of taxable income
12% $23,201 – $94,300 $2,320 + 12% of amount over $23,200
22% $94,301 – $201,050 $10,852 + 22% of amount over $94,300
24% $201,051 – $383,900 $34,337 + 24% of amount over $201,050
32% $383,901 – $487,450 $78,221 + 32% of amount over $383,900
35% $487,451 – $731,200 $111,357 + 35% of amount over $487,450
37% $731,201 or more $196,669.50 + 37% of amount over $731,200

Filing Status of Taxpayer

Your filing status determines your tax bracket, standard deduction, and eligibility for credits and deductions.

Married Filing Jointly

File a joint return with your spouse. If your spouse died during the year, you may still file jointly.

Qualified Widow(er)

Applicable if your spouse died and you have at least one dependent child.

Single

  • Divorced individuals
  • Legally separated individuals
  • Unmarried individuals

Head of Household

For unmarried taxpayers who pay more than half the cost of maintaining a home. Married taxpayers may qualify if they live apart from their spouse for six months of the year.

Married Filing Separately

Married individuals may choose to file separately.

Tax Credits

Tax credits directly reduce your tax liability and can be non-refundable or refundable:

  • Non-refundable credits: Reduce tax liability to $0 but cannot result in a refund. Unused credits expire.
  • Refundable credits: May be received as a refund even if exceeding tax liability.

Common Tax Credit Categories

Income

Refundable credit for low/moderate-income households (typically up to $50,000).

Children

Up to $2,000 per child, with $1,400 potentially refundable.

Education

Claimable for students aged 18+ not claimed as dependents. Maximum credit is $2,500 per student annually.

Environmental

Available for properties powered by solar, wind, geothermal, or fuel-cell energy technologies.

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