New Jersey Administrative Code
Title 18 - TREASURY - TAXATION
Chapter 7 - CORPORATION BUSINESS TAX ACT
Subchapter 13 - ASSESSMENT, PAYMENTS, REFUNDS, LIEN
Section 18:7-13.7 - Additional tax; change in Federal tax; interest to be charged

(a) If the taxpayer is notified by the Director that an additional tax is payable as a result of an amended Federal return or a change or correction in taxable income by the Commissioner of Internal Revenue or other office of the United States or other competent authority, or where a renegotiation of a contract or subcontract with the United States or a recovery of a war loss results in a computation or recomputation of any tax imposed by the United States, within 15 days after the date of the Division's assessment letter to the taxpayer, the taxpayer must remit that additional tax together with interest thereon at the rate of three percentage points above the prime rate assessed for each month or fraction thereof compounded annually at the end of each year, from the date such tax was originally due to the date of actual payment.

(b) However, if the taxpayer failed to notify the Director of any change in Federal net income within 90 days as required by the Act, any additional tax resulting from a change, plus interest thereon computed as indicated in (a) above, shall be deemed to have been due within 15 days after notification was required to be filed with the Director.