Section 4. The first required installment of estimated tax shall be paid on or before the fifteenth day of the third month of the taxable year, except that if the requirements of section two are first met: (a) after the last day of the second month and before the first day of the sixth month of the taxable year, the first required installment shall be paid on or before the fifteenth day of the sixth month of the taxable year; (b) after the last day of the fifth month and before the first day of the ninth month of the taxable year, the first required installment shall be paid on or before the fifteenth day of the ninth month of the taxable year; or (c) after the last day of the eighth month and before the first day of the twelfth month of the taxable year, the first required installment shall be paid on or before the fifteenth day of the twelfth month of the taxable year.
Structure Massachusetts General Laws
Part I - Administration of the Government
Chapter 63b - Declaration of Estimated Tax by Corporations
Section 2 - Payment of Estimated Tax by Corporations
Section 3 - Interest on Underpayment of Estimated Taxes; Installment Payments
Section 4 - Time for Payment of First Installment
Section 4a - Amount and Time of Installment Payments
Section 4b - First Year Corporations With Less Than Ten Employees; Installment Payments
Section 5 - Credit Against Taxes
Section 7 - Taxable Years of Less Than Twelve Months
Section 10 - Addition of Tax or Penalty; Assessment and Collection