Choice "C" is correct. Corporations are required to pay estimated taxes on the fifteenth day of the fourth, sixth, ninth, and twelfth months of their tax year. One-fourth of the estimated tax is due with each payment. Unequal quarterly payments may be made using the annualized income method.
Choice "b" is incorrect. The annualized income method should be used.
Choice "a" is incorrect. The annualized income method should be used.
Choice "d" is incorrect. Using the past three years could yield an estimated tax liability lower than required.
