1) Hans Karl von Diebitsch-Zabalkansky files a single tax return for 2010 reporting $55,000 in wages as shown on his Form W-2.
2) His taxable income is $45,650 after subtracting the standard deduction of $9,350 for a single filer.
3) His total tax is calculated as $7,588 using the tax table in the instructions. Since he had no tax withheld or credits, he owes $7,588.