Income Tax 2015 Calculator Usa
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Reviewed by Calculator Editorial Team
Use this calculator to determine your 2015 US income tax liability based on your taxable income. The calculator uses the 2015 federal tax brackets and standard deductions to provide an accurate estimate of your tax obligation.
How the 2015 US Income Tax Calculator Works
The 2015 US income tax calculator estimates your federal income tax based on your taxable income. The calculation follows these steps:
- Subtract your standard deduction from your total income to determine taxable income.
- Apply the progressive tax brackets to your taxable income.
- Calculate the total federal income tax owed.
Key Formula
Taxable Income = Total Income - Standard Deduction
Federal Income Tax = Sum of (Taxable Income × Bracket Rate) for each applicable bracket
2015 Federal Tax Brackets
The 2015 federal income tax brackets for single filers were:
| Taxable Income Range | Tax Rate |
|---|---|
| $0 - $9,075 | 10% |
| $9,076 - $36,900 | 15% |
| $36,901 - $89,350 | 25% |
| $89,351 - $186,350 | 28% |
| $186,351 - $405,100 | 33% |
| $405,101 - $406,750 | 35% |
| $406,751+ | 39.6% |
2015 Standard Deductions
The 2015 standard deductions were:
- Single filers: $6,300
- Married filing jointly: $12,600
- Head of household: $9,250
Note: The calculator uses the standard deduction for single filers by default. Adjust the filing status in the calculator for different deductions.
Example Calculation
Let's calculate the federal income tax for a single filer with $45,000 total income:
- Taxable Income = $45,000 - $6,300 = $38,700
- Tax Calculation:
- $9,075 × 10% = $907.50
- ($36,900 - $9,075) × 15% = $3,883.75
- ($38,700 - $36,900) × 25% = $452.50
- Total Federal Income Tax = $907.50 + $3,883.75 + $452.50 = $5,243.75
Frequently Asked Questions
- What is the difference between taxable income and total income?
- Taxable income is your total income minus any deductions you qualify for. The standard deduction is the most common type of deduction.
- How do I know which tax bracket I'm in?
- Your tax bracket is determined by your taxable income. The calculator applies the appropriate brackets automatically.
- Does this calculator include state taxes?
- No, this calculator only calculates federal income tax. You'll need to use a state-specific calculator for your state taxes.
- What if I have itemized deductions instead of the standard deduction?
- The calculator uses the standard deduction by default. If you have itemized deductions that exceed the standard deduction, you'll need to adjust the calculation manually.
- Is this calculator accurate for all income levels?
- This calculator provides an estimate based on the 2015 tax brackets. For precise tax calculations, consult a tax professional or use official IRS forms.