Range of taxable income Tax calculation Base tax + (Marginal rate X amount over base bracket) S 0 to $50,000 $ 0+ (15% Xamount over $ 0) 50,000 to 75,000 7,500 (25 Xamount over 50,000) 75,000 to 100,000 13,750 (34 Xamount over 75,000) 100,000 to 335,000 22,250 (39 Xamount over 100,000) 335,000 to 10,000,000 113,900 (34 Xamount over 335,000) 10,000,000 to 15,000,000 3,400,000 + (35 Xamount over 10,000,000) 15,000,000 to 18,333,333 5,150,000+ (38 X amount over 15,000,000) Over 18,333,333 6,416,667 (35 Xamount over 18,333,333)