N.J. Stat. § 54:18A-7
The taxes imposed by this act shall be first payable in the year one thousand nine hundred and forty-five on the basis of taxable premiums and taxable considerations collected during the year ending December thirty-first, one thousand nine hundred and forty-four; provided, however, that any taxes paid prior to the effective date of this section or payable prior to the effective date of this section and subsequently paid under any law of this State in force on the effective date of this section, assessed on the basis of premiums and considerations collected during the year ending December thirty-first, one thousand nine hundred and forty-four, or on the basis of the net value of policies in force on December thirty-first, one thousand nine hundred and forty-four, shall be credited against the taxes imposed by section three of this act.
N.J.S. § 54:18A-7