Final answer:
To continue using its fiscal year without negative tax effects, Carmine Corporation must pay Juan an additional $336,000 for the remaining three months. Carmine Corporation's income tax liability for the year ending September 30, 2015 can be calculated using the given flat tax rates.
Step-by-step explanation:
a. To permit the corporation to continue using its fiscal year without negative tax effects, Carmine Corporation must pay Juan a salary during the period October 1 through December 31, 2015, equal to the salary paid during the fiscal year ending September 30, 2015. This means that Carmine must pay Juan an additional $336,000 for the remaining three months.
b. To compute Carmine Corporation's income tax liability for the year ending September 30, 2015, we need to determine the corporation's taxable income using the following formula: Taxable Income = Total Income - Deductions. The corporation had a taxable income of $95,000, so we can calculate the income tax liability using the given flat tax rates.