Definitions

Federal Income Tax Rates:

Use the table below to assist you in estimating your Federal 2013 tax rate.

Filing Status and Income Tax Rates 2013*
Tax Rate	Married Filing Jointly or Qualified Widow(er)	Single	Head of Household	Married Filing Separately
10%	$0 - $17,850	$0 - $8,925	$0 - $12,750	$0 - $8,925
15%	$17,850 - $72,500	$8,925 - $36,250	$12,750 - $48,600	$8,925 - $36,250
25%	$72,500 - $146,400	$36,250 - $87,850	$48,600 - $125,450	$36,250 - $73,200
28%	$146,400 - $223,050	$87,850 - $183,250	$125,450 - $203,150	$73,200 - $111,525
33%	$223,050 - $398,350	$183,250 - $398,350	$203,150 - $398,350	$111,525 - $199,175
35%	$398,350 - $450,000	$398,350 - $400,000	$398,350 - $425,000	$199,175 - $225,000
39.6%	over $450,000	over $400,000	over $425,000	over $225,000
*Caution: Do not use these tax rate schedules to figure 2012 taxes. Use only to figure 2013 estimates. Source: 2013 preliminary tax brackets subject to correction http://www.irs.gov

Wages, salaries, tips, etc.

This is your total income for the year. To keep things simple this calculator assumes this is your net income, after deductions for retirement contributions such as 401(k)s, IRAs, etc.

Filing status

Choose your filing status. Your filing status determines the income levels for your Federal tax bracket. It is also important for calculating your standard deduction, personal exemptions, and deduction phase out incomes. The table below summarizes the five possible filing status choices. It is important to understand that your marital status as of the last day of the year determines your filing status.

Filing Status
Married Filing Jointly	If you are married, you are able to file a joint return with your spouse. If your spouse died during the tax year, you are still able to file a joint return for that year. You may also choose to file separately under the status "Married Filing Separately".
Qualified Widow(er)	Generally, you qualify for this status if your spouse died during the previous tax year (not the current tax year) and you and your spouse filed a joint tax return in the year immediately prior to their death. You are also required to have at least one dependent child or stepchild for whom you are the primary provider.
Single	If you are divorced, legally separated or unmarried as of the last day of the year you should use this status.
Head of Household	This is the status for unmarried individuals that pay for more than half of the cost to keep up a home. This home needs to be the main home for the income tax filer and at least one qualifying relative. You can also choose this status if you are married, but didn't live with your spouse at anytime during the last six months of the year. You also need to provide more than half of the cost to keep up your home and have at least one dependent child living with you.
Married Filing Separately	If you are married, you have the choice to file separate returns. The filing status for this option is "Married Filing Separately".

For 2013, the standard deductions are $12,200 for married couples filing jointly, $6,100 for married couples filing separately and singles, and $8,950 for heads of household.

Are you someone's dependent?

Choose 'no' if no one can claim you or your spouse as a dependent. Choose 'yes' if someone can claim you as a dependent. Choose 'both you and your spouse if you both are dependents. (You are a dependent if someone supports you and can claim a dependency exemption for you.)

Number of additional dependents

A dependent is someone you support and for whom you can claim a dependency exemption. In 2013, each dependent you claim entitles you to receive a $3,900 reduction in your taxable income (see exemptions below). You may also receive a tax credit of up to $1,000 for each dependent child under the age of 17. The credit is, however, phased out at higher incomes.

Itemized deductions

This is the total of your itemized deductions that you can include on schedule A of your Federal income taxes. For most people this includes state income taxes paid for the year, interest on a mortgage and any charitable contributions. Other itemized deductions include certain investment expenses, medical expenses exceeding 7.5% of your adjusted gross income, and some moving expenses.