Section 77-A:7 - Payments Due With Returns and With EstimatesI.(a) All business organizations required under RSA 77-A:6, II to make payments of estimated tax shall make such payments in installments as follows: 25 percent is due and payable on the fifteenth day of the fourth month of the subsequent taxable year; 25 percent is due and payable on the fifteenth day of the sixth month of the subsequent taxable year; 25 percent is due and payable on the fifteenth day of the ninth month of the subsequent taxable year; and 25 percent is due and payable on the fifteenth day of the twelfth month of the subsequent taxable year. Any business enterprise tax credit which may be applied under RSA 77-A:5, X may be applied to the estimated tax payments.(b) If the return required by RSA 77-A:6, I shows an additional amount to be due, such additional amount is due and payable on the prescribed payment date. If such return shows an overpayment of the tax due, the commissioner shall refund or credit the overpayment to the taxpayer in accordance with RSA 21-J:28-a, except that: (1) For taxable periods ending on or after December 31, 2022 a credit shall only be allowed in an amount up to 500 percent of the total tax liability for the taxable period and the remainder of the overpayment shall be refunded;(2) For taxable periods ending on or after December 31, 2029 a credit shall only be allowed in an amount up to 250 percent of the total tax liability for the taxable period and the remainder of the overpayment shall be refunded; and(3) For taxable periods ending on or after December 31, 2031 a credit shall only be allowed in an amount up to 100 percent of the total tax liability for the taxable period and the remainder of the overpayment shall be refunded.Amended by 2024, 245:1, eff. 7/1/2024.Amended by 2021 , 91: 115, eff. 6/25/2021.Amended by 2012 , 253: 1, eff. 7/1/2012.1970, 5:1; 56:6. 1971, 515:8. 1973, 544:9. 1975, 439:34, VII. 1979, 446:4. 1988, 23:4. 1990, 3:71. 1991, 163:17. 1993, 350:18, eff. July 1, 1993. 2012, 253 : 1 , eff. July 1, 2012. 2021, 91 : 115 , eff. June 25, 2021.