Tax Calculator 2018 Usa
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Reviewed by Calculator Editorial Team
Calculate your estimated 2018 US federal income tax with this professional tax calculator. Simply enter your taxable income and filing status to determine your tax liability based on the 2018 tax brackets and standard deductions.
How to Use This Tax Calculator
Using this tax calculator is simple:
- Enter your total taxable income for 2018 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 income tax.
- Review the breakdown of your tax liability based on the 2018 tax brackets.
The calculator uses the progressive tax system with different tax rates for different income levels. The standard deduction is automatically applied to your taxable income before calculating the tax.
2018 US Federal Tax Brackets
The 2018 US federal income tax brackets are as follows:
| Filing Status | 10% Bracket | 12% Bracket | 22% Bracket | 24% Bracket | 32% Bracket | 35% Bracket | 37% Bracket |
|---|---|---|---|---|---|---|---|
| Single | $0 - $9,525 | $9,526 - $38,700 | $38,701 - $82,500 | $82,501 - $157,500 | $157,501 - $200,000 | $200,001 - $500,000 | $500,001+ |
| Married Filing Jointly | $0 - $19,050 | $19,051 - $77,400 | $77,401 - $165,000 | $165,001 - $315,000 | $315,001 - $400,000 | $400,001 - $600,000 | $600,001+ |
| Married Filing Separately | $0 - $9,525 | $9,526 - $38,700 | $38,701 - $82,500 | $82,501 - $157,500 | $157,501 - $200,000 | $200,001 - $300,000 | $300,001+ |
| Head of Household | $0 - $13,600 | $13,601 - $51,800 | $51,801 - $82,500 | $82,501 - $157,500 | $157,501 - $200,000 | $200,001 - $500,000 | $500,001+ |
These brackets apply to taxable income after deductions and exemptions. The standard deduction is automatically applied in this calculator.
Standard Deduction for 2018
The 2018 standard deduction amounts are:
- Single: $6,350
- Married Filing Jointly: $12,700
- Married Filing Separately: $6,350
- Head of Household: $9,350
These amounts are automatically applied to your taxable income in this calculator before calculating your tax liability.
Example Calculation
Let's calculate the federal income tax for a single filer with $50,000 taxable income in 2018.
- Subtract the standard deduction: $50,000 - $6,350 = $43,650 taxable income
- Calculate tax in each bracket:
- $9,525 × 10% = $952.50
- ($38,700 - $9,525) × 12% = $3,014.80
- ($43,650 - $38,700) × 22% = $1,285.80
- Total tax: $952.50 + $3,014.80 + $1,285.80 = $5,253.10
This example shows how the progressive tax system applies different rates to different portions of your income.
Frequently Asked Questions
- What is the difference between taxable income and gross income?
- Taxable income is your gross income minus deductions and exemptions. Gross income includes all income before any reductions.
- How does the standard deduction affect my tax?
- The standard deduction reduces your taxable income, which can lower your overall tax liability. It's automatically applied in this calculator.
- Are there any additional taxes not included in this calculator?
- This calculator only includes federal income tax. State taxes, FICA taxes, and local taxes are not calculated here.
- How accurate is this tax calculator?
- This calculator provides an estimate based on the 2018 tax brackets and standard deductions. For exact tax calculations, consult a tax professional.
- Can I use this calculator for past or future years?
- This calculator is specifically designed for 2018 tax calculations. Different years have different tax brackets and deductions.