Federal Tax Calculator Usa 2015
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Reviewed by Calculator Editorial Team
Calculate your 2015 federal income tax liability using this official IRS-based calculator. The tool accounts for tax brackets, standard deductions, and filing status options to provide an accurate estimate of your federal tax obligation for the year 2015.
How to Use This Calculator
Using the federal tax calculator is straightforward. Follow these steps to get your estimated tax liability:
- Enter your total taxable income for 2015 in the "Taxable Income" field.
- Select your filing status from the dropdown menu (Single, Married Filing Jointly, Married Filing Separately, or Head of Household).
- Click the "Calculate" button to see your estimated federal tax.
The calculator will display your estimated federal tax amount, which includes federal income tax, Social Security tax, and Medicare tax. You can also view a breakdown of how your income is taxed across different brackets.
How Federal Taxes Work in 2015
The federal tax system in the USA uses a progressive tax rate structure, meaning higher incomes are taxed at higher rates. The 2015 tax brackets and rates are as follows:
2015 Federal Income Tax Brackets
| Filing Status | 10% Bracket | 15% Bracket | 25% Bracket | 28% Bracket | 33% Bracket | 35% Bracket | 39.6% Bracket |
|---|---|---|---|---|---|---|---|
| Single | $0 - $9,075 | $9,076 - $36,900 | $36,901 - $89,350 | $89,351 - $190,750 | $190,751 - $414,700 | $414,701 - $416,750 | $416,751+ |
| Married Filing Jointly | $0 - $18,150 | $18,151 - $73,800 | $73,801 - $148,850 | $148,851 - $226,850 | $226,851 - $405,100 | $405,101 - $457,600 | $457,601+ |
The calculator applies these brackets to your taxable income to determine your federal tax liability. It also accounts for the standard deduction, which reduces your taxable income. For 2015, the standard deductions were:
- Single: $6,300
- Married Filing Jointly: $12,600
- Married Filing Separately: $6,300
- Head of Household: $9,250
In addition to federal income tax, the calculator also includes Social Security tax (6.2%) and Medicare tax (1.45%) for wages up to $118,500 in 2015.
Worked Examples
Let's look at two examples to see how the calculator works:
Example 1: Single Filer with $50,000 Income
Taxable Income: $50,000 - $6,300 (standard deduction) = $43,700
Tax Calculation:
- $9,075 × 10% = $907.50
- ($36,900 - $9,075) × 15% = $3,911.25
- ($43,700 - $36,900) × 25% = $1,725
Total Federal Income Tax: $907.50 + $3,911.25 + $1,725 = $6,543.75
Social Security Tax: $50,000 × 6.2% = $3,100
Medicare Tax: $50,000 × 1.45% = $725
Total Estimated Tax: $6,543.75 + $3,100 + $725 = $10,368.75
Example 2: Married Filing Jointly with $100,000 Income
Taxable Income: $100,000 - $12,600 (standard deduction) = $87,400
Tax Calculation:
- $18,150 × 10% = $1,815
- ($73,800 - $18,150) × 15% = $8,445
- ($87,400 - $73,800) × 25% = $3,350
Total Federal Income Tax: $1,815 + $8,445 + $3,350 = $13,610
Social Security Tax: $100,000 × 6.2% = $6,200
Medicare Tax: $100,000 × 1.45% = $1,450
Total Estimated Tax: $13,610 + $6,200 + $1,450 = $21,260
Frequently Asked Questions
- Is this calculator based on actual IRS data?
- Yes, this calculator uses the official 2015 federal tax brackets and rates published by the IRS. The standard deductions and tax rates are accurate for the 2015 tax year.
- Does this calculator include state taxes?
- No, this calculator only calculates federal taxes. State taxes vary by location and are not included in this tool. You would need to use a separate state tax calculator for that information.
- What if my income is below the standard deduction?
- If your income is below the standard deduction for your filing status, your taxable income will be zero, and you will owe no federal income tax. The calculator will reflect this in the results.
- Does this calculator account for tax credits?
- This calculator provides an estimate of your federal tax liability but does not account for tax credits or deductions beyond the standard deduction. For a more precise calculation, you should consult a tax professional.