This calculator is a PHP University Project.
You can watch a time-lapse video of its construction on YouTube.

NOTE: This U.S. Federal Individual income tax calculator shows the estimated personal taxes owed by both individuals and married couples, whether employeed or self-employeed.

The 2013 income tax calculations are what the law currently specifies will be owed by Americans in the year 2013, unless Congress (beleaguered by the debt ceilling, a Presidential election, and massive looming automatic budget cuts) has the time and wherewithal to change the law.

The numbers are pretty troubling: 24% more taxes for the typical family. Leading economists have started stating that if the fiscal cliff isn't resolved, it could lead to a 20% market correction by March 2013.

But this is just part of the looming Fiscal Cliff [] that awaits us, that could be much more worse than people have predicted so far. It is speculated by leading theorists and politicians that there is a 70% chance the taxes will be owed if Obama is re-elected, and 30% if Romney is.


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Tax Liability

Yes! Congress took action and *permanently* fixed the Alternative Minimum Tax, which would have been much worse than what's listed.

2013-01-03 14:02 EST UPDATED FOR THE FISCAL CLIFF COMPROMISE~! The calculator is now using the final tax rates according to the IRS.

  2012 2013 2016 2017
Mode: Married: Joint
Gross Income: $100,000.00 $100,000.00 $100,000.00 $100,000.00
Federal Income Tax: $14,085.10 $13,805.10 $13,392.60 $13,302.60
Social Security Tax: $4,200.00 $6,200.00 $6,200.00 $6,200.00
Medicare Tax: $1,450.00 $1,450.00 $1,450.00 $1,450.00
Additional Medicare Tax: $0.00 $0.00 $0.00
Total Tax Liability: $19,735.10 $21,455.10
($1,720.00; +8.72% more)
$21,042.60 $20,952.60
Net Income: $80,264.90 $78,544.90 $78,957.40 $79,047.40

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Federal Corporate Income Tax Calculator

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