N.J. Stat. § 5:12-149
The Division of Taxation may perform audits of the books and records of a casino licensee, at such times and intervals as it deems appropriate, for the purpose of determining the sufficiency of tax payments. If a return or deposit required by section 145 with regard to obligations imposed by subsection a. of section 144 of P.L. 1977, c.110 (C.5:12-144) is not filed or paid, or if a return or deposit when filed or paid is determined by the Division of Taxation to be incorrect or insufficient with or without an audit, the amount of tax or deposit due shall be determined by the Division of Taxation. Notice of such determination shall be given to the licensee liable for the payment of the tax or deposit. Such determination shall finally and irrevocably fix the tax unless the person against whom it is assessed, within 30 days after receiving notice of such determination, shall apply to the Division of Taxation for a hearing in accordance with the regulations of the Division of Taxation.
N.J.S. § 5:12-149