The surtax imposed under this section shall be imposed on allocated taxable net income, and shall be due and payable in accordance with section 15 of P.L. 1945, c.162 (C.54:10A-15), and the surtax shall be administered pursuant to the provisions of P.L. 1945, c.162 (C.54:10A-1 et seq.). Notwithstanding the provisions of any other law to the contrary, no credits shall be allowed against the surtax liability computed under this section except for credits for installment payments, estimated payments made with a request for an extension of time for filing a return, or overpayments from prior privilege periods.
N.J.S. § 54:10A-5.41