2018 Income Tax Calculator Usa

Use this 2018 Income Tax Calculator USA to estimate your federal income tax liability for the tax year 2018. The calculator uses the 2018 tax brackets and standard deductions to provide an accurate estimate of your tax obligation.

How to Use This Calculator

To calculate your 2018 federal income tax:

Enter your total taxable income in the "Taxable Income" field.
Select your filing status (Single, Married Filing Jointly, Married Filing Separately, or Head of Household).
Click the "Calculate" button to see your estimated tax liability.

The calculator will display your federal income tax based on the 2018 tax brackets and standard deductions. Keep in mind that this is an estimate and your actual tax liability may vary based on additional factors such as state taxes, deductions, and credits.

2018 Federal Tax Brackets

The 2018 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+

Note: These brackets are for federal income tax only. State taxes may have different brackets and rates.

Standard Deduction

The standard deduction for 2018 is as follows:

Single: $6,350
Married Filing Jointly: $12,700
Married Filing Separately: $6,350
Head of Household: $9,350

If you claim the standard deduction, you subtract this amount from your taxable income before calculating your tax liability.

Example Calculation

Let's calculate the federal income tax for a single filer with $50,000 in taxable income:

Subtract the standard deduction: $50,000 - $6,350 = $43,650
Calculate tax in the 12% bracket: $43,650 - $9,525 = $34,125 at 12%
Tax calculation: ($9,525 × 10%) + ($34,125 × 12%) = $952.50 + $4,095.00 = $5,047.50

Therefore, a single filer with $50,000 in taxable income would owe approximately $5,047.50 in federal income tax for 2018.

Frequently Asked Questions

How do I calculate my taxable income?

Your taxable income is your total income minus any deductions you're eligible for. This includes standard deductions, itemized deductions, and other allowable deductions.

What is the difference between federal and state taxes?

Federal taxes are levied by the federal government, while state taxes are levied by individual states. Each state has its own tax rates and brackets, which may differ from the federal rates.

Can I deduct my mortgage interest?

Yes, you can deduct mortgage interest if you itemize your deductions. The standard deduction is generally more beneficial for most taxpayers.

What is the Alternative Minimum Tax (AMT)?

The AMT is a separate tax system that applies to high-income taxpayers. It ensures that wealthy individuals pay at least a minimum amount of tax, regardless of their deductions and credits.