Calculates U.S. Federal Income Tax, from your taxable income. Obviously, this is for fun, and you should consult a qualified tax professional for real tax advice.
The algorithms are found here: http://www.irs.com/articles/2014-federal-tax-rates-personal-exemptions-and-standard-deductions For comparison, the tax tables are found here: http://www.irs.gov/pub/irs-pdf/i1040tt.pdf
