ABC Company was founded in 20X1 and had the following taxable income through 20X6:

20X1	20X2	20X3	20X4	20X5	20X6
$2.5M	$8.5M	$7.8M	-$17.6M	$12.3M	$16.4M

Compute the corporate income tax or tax refund in each year, assuming the graduated tax rates listed below.

At least	But less than	Tax Rate (%)	Tax Calculation
0.00	50,000.00	15	.15 x (income over $0)
50,000.00	75,000.00	25	7,500 + 0.25 x (income over 50,000)
75,000.00	100,000.00	34	13,750 + 0.34 x (income over 75,000)
100,000.00	335,000.00	39	22,250 + 0.39 x (income over 100,000)
335,000.00	10,000,000.00	34	113900 + 0.34 x (income over 335,000)
10,000,000.00	15,000,000.00	35	3,400,000 + 0.35 x(income over 10,000,000)
15,000,000.00	18,333,333.00	38	5,150,000 + 0.38 x (income over 15,000,000)
18,333,333.00	0.00	35	6,416,667 + 0.35 x (income over 18,333,333)