2019 Federal Quarterly Income Tax Calculator
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Reviewed by Calculator Editorial Team
Calculate your 2019 federal quarterly income tax with this official IRS-based calculator. This tool helps you estimate your tax liability for each quarter of the tax year, including standard deductions, tax brackets, and quarterly estimated tax payments.
How to Use This Calculator
To calculate your 2019 federal quarterly income tax:
- Enter your total annual income in the "Annual Income" field.
- Select your filing status (Single, Married Filing Jointly, etc.).
- Enter the number of quarters you want to calculate (1-4).
- Click "Calculate" to see your quarterly tax estimate.
The calculator will show you:
- Your standard deduction amount
- Taxable income for each quarter
- Federal income tax owed for each quarter
- Total federal income tax for the year
Formula and Assumptions
The 2019 federal quarterly income tax is calculated using the following formula:
Formula
Quarterly Tax = (Taxable Income × Tax Rate) / 4
Taxable Income = Annual Income - Standard Deduction
The calculator uses the 2019 federal tax brackets and standard deductions:
| Filing Status | Standard Deduction | Tax Brackets |
|---|---|---|
| Single | $12,200 | 10% on first $9,700, 12% on next $29,775, 22% on next $8,907,50, 24% on next $170,850, 32% on next $339,850, 35% on amounts over $518,400 |
| Married Filing Jointly | $24,400 | 10% on first $19,400, 12% on next $59,550, 22% on next $17,817,50, 24% on next $341,700, 32% on next $679,700, 35% on amounts over $1,036,800 |
Note
This calculator provides an estimate. Actual tax liability may vary based on your specific situation and additional deductions or credits you may qualify for.
Worked Example
Let's calculate the quarterly income tax for a single filer with $60,000 annual income.
- Standard deduction: $12,200
- Taxable income: $60,000 - $12,200 = $47,800
- Tax calculation:
- $9,700 × 10% = $970
- ($47,800 - $9,700) × 12% = $4,513.20
- Total tax: $970 + $4,513.20 = $5,483.20
- Quarterly tax: $5,483.20 / 4 = $1,370.80
For this example, the quarterly federal income tax would be $1,370.80 per quarter.
Frequently Asked Questions
What is the difference between annual and quarterly income tax?
Annual income tax is calculated on your total income for the year, while quarterly income tax divides that amount into four equal payments. This method helps you pay taxes throughout the year rather than all at once.
When should I make quarterly estimated tax payments?
Quarterly estimated tax payments are typically due on April 15, June 15, September 15, and January 15 of the following year. The amounts calculated by this tool help you determine how much to pay each quarter.
Can I use this calculator for self-employment income?
Yes, you can use this calculator for self-employment income, but you may need to adjust for additional self-employment tax and quarterly estimated tax requirements specific to your business.
Does this calculator account for state taxes?
No, this calculator only calculates federal income tax. You'll need to use a separate state income tax calculator for your state's tax requirements.