A corporation which has not established an accounting period for Federal income tax purposes shall be deemed to be operating on the basis of a calendar year accounting period until proof has been submitted to the Division of Taxation of the establishment of a fiscal year accounting period for Federal income tax purposes.
N.J. Admin. Code § 18:7-2.7
See: 11 N.J.R. 40(d), 11 N.J.R. 150(b).