The individual tax rate schedules should only be used to calculate your Federal tax if your taxable income is over $100,000. If your taxable income is under $100,000, use the IRS tax tables or my tax calculator . The IRS provides the following tables to assist taxpayers in understanding how their tax is calculated.

Single At least: But not over:         The tax is:         of the amount over $ 0 $ 7,825 $ 0 + 10.0% $ 0 7,825 31,850 782.50 + 15.0% 7,825 31,850 77,100 4,386.25 + 25.0% 31,850 77,100 160,850 15,698.75 + 28.0% 77,100 160,850 349,700 39,148.75 + 33.0% 160,850 349,700 --- 101,469.25 + 35.0% 349,700 Married filing jointly or Qualifying widow(er) At least: But not over:         The tax is:         of the amount over $ 0 $ 15,650 $ 0 + 10.0% $ 0 15,650 63,700 1,565.00 + 15.0% 15,650 63,700 128,500 8,772.50 + 25.0% 63,700 128,500 195,850 24,972.50 + 28.0% 128,500 195,850 349,700 43,850.50 + 33.0% 195,850 349,700 --- 94,601.00 + 35.0% 349,700 C Corporations (Form 1120) At least: But not over:         The tax is:         of the amount over $ 0 $ 50,000 $ 0 + 15% $ 0 50,000 75,000 7,500.00 + 25% 50,000 75,000 100,000 13,750.00 + 34% 75,000 100,000 335,000 22,250.00 + 39% 100,000 335,000 10,000,000 113,900.00 + 34% 335,000 10,000,000 15,000,000 3,400,000.00 + 35% 10,000,000 15,000,000 18,333,333 5,150,000.00 + 38% 15,000,000 18,333,333 --- 0 + 35% 0 Fiduciary/Estate (Form 1041) At least: But not over:         The tax is:         of the amount over $ 0 $ 2,150 $ 0 + 15.0% $ 0 2,150 5,000 322.50 + 25.0% 2,150 5,000 7,650 1,035.00 + 28.0% 5,000 7,650 10,450 1,777.00 + 33.0% 7,650 10,450 --- 2,701.00 + 35.0% 10,450