Flip Corporation is subject to tax only in State X. Flip generated the following income and deductions. State income taxes are not deductible for X income tax purposes.

Sales

$4,000,000

Cost of sales

2,800,000

State X income tax expense

200,000

Depreciation allowed for Federal tax purposes

400,000

Depreciation allowed for state tax purposes

300,000

Interest income on Federal obligations

50,000

Interest income on X obligations

30,000

Expenses related to carrying X obligations

10,000

a. The starting point in computing the X income tax base is Federal taxable income.

Derive this amount.

b. Determine Flip’s X taxable income assuming that interest on X obligations is exempt from X income tax.

c. Determine Flip’s X taxable income assuming that interest on X obligations is subject to X income tax.