Income Tax Rates 2013 Calculator Usa

Use this calculator to estimate your 2013 US income tax liability based on your gross income and filing status. The calculator uses official 2013 tax rates and brackets to provide an accurate estimate of your federal and state income tax.

How to Use This Calculator

To calculate your estimated 2013 income tax:

Enter your total gross income for the year in the "Gross Income" field.
Select your filing status from the dropdown menu (Single, Married Filing Jointly, etc.).
Select your state of residence from the dropdown menu.
Click the "Calculate" button to see your estimated tax liability.

The calculator will display your estimated federal income tax, state income tax, and total income tax. It also provides a breakdown of how much tax is paid at each tax bracket.

Federal Tax Rates 2013

The 2013 federal income tax rates were as follows:

Tax Bracket	Single	Married Filing Jointly	Married Filing Separately	Head of Household
10%	$0 - $8,925	$0 - $17,850	$0 - $8,925	$0 - $12,750
15%	$8,926 - $36,250	$17,851 - $72,500	$8,926 - $36,250	$12,751 - $47,625
25%	$36,251 - $87,850	$72,501 - $146,400	$36,251 - $87,850	$47,626 - $123,250
28%	$87,851 - $183,350	$146,401 - $223,200	$87,851 - $183,350	$123,251 - $206,750
33%	$183,351 - $395,700	$223,201 - $395,700	$183,351 - $395,700	$206,751 - $395,700
35%	$395,701 - $400,000	$395,701 - $400,000	$395,701 - $400,000	$395,701 - $400,000
39.6%	$400,001+	$400,001+	$400,001+	$400,001+

Note

These are the standard federal income tax rates for 2013. Actual tax liability may vary based on deductions, credits, and other factors.

State Tax Rates 2013

State income tax rates in 2013 varied significantly by state. Here are some examples:

State	Tax Rate	Notes
California	1% - 13.3%	Progressive rates
New York	4% - 10.9%	Progressive rates
Texas	0%	No state income tax
Florida	0% - 2.5%	Progressive rates
Illinois	3.75% - 4.95%	Progressive rates

For an exact calculation, select your state in the calculator above. The calculator uses the most accurate 2013 state tax rates available.

How This Calculator Works

The calculator uses the following formula to estimate your federal income tax:

Federal Income Tax Calculation

Federal Tax = Sum of (Taxable Income × Rate) for each applicable bracket

Where Taxable Income is calculated as:

Taxable Income = Gross Income - Standard Deduction - Itemized Deductions

For state income tax, the calculation varies by state. The calculator uses the most accurate 2013 state tax rates available for each state.

Example: A single filer with $50,000 gross income in California would be taxed as follows:

$8,925 at 10% = $892.50
$27,325 at 15% = $4,100.75
$13,750 at 25% = $3,437.50
Total federal tax = $8,430.75
California state tax (example rate): $50,000 × 1% = $500
Total income tax = $8,930.75

Frequently Asked Questions

Is this calculator accurate for my 2013 tax return?

This calculator provides an estimate based on standard tax rates. For exact tax liability, consult a tax professional or use official IRS tax software.

Does this calculator include deductions and credits?

No, this calculator uses standard deductions for each filing status. It does not account for itemized deductions or tax credits.

How do I file my 2013 taxes if I didn't receive a W-2?

If you didn't receive a W-2, you may need to file as a self-employed individual or use Form 1040-ES for estimated taxes. Consult the IRS website for guidance.

Are there any changes to 2013 tax rates that aren't included here?

This calculator includes all standard 2013 tax rates. However, some states may have additional local taxes not included in this calculation.