If the requirements of Code Section 48-7-117 are first met as shown in the left-hand column of the following table, then the estimated tax shall be due as shown in the remaining columns: Before the first day of the fourth month of the taxable year INCOME TAXES The following percentages of the estimated tax shall be paid on the fifteenth day of the: fourth sixth ninth month month month of the of the of the taxable taxable taxable year year year twelfth month of the taxable year 25 After the last day of the third month and before the first day of the sixth month of the taxable year After the last day of the fifth month and before the first day of the ninth month of the taxable year After the last day of the eighth month and before the first day of the twelfth month of the taxable year 25 25 25 33 1/3 33 1/3 33 1/3 50 50 100 History. Ga. L. 1963, p. 18, § 3; Code 1933, § 91A-3920, enacted by Ga. L. 1978, p. 309, § 2; Ga. L. 1988, p. 1380, § 4; Ga. L. 1989, p. 1110, § 1.