N.J. Stat. § 54:30A-117
Any amount paid by a remitter pursuant to this act shall be available as a nonrefundable credit. Credits established pursuant to payments made under the "Uniform Transitional Utility Assessment Act" shall be granted only on the basis of the remitters estimation as certified by the State Treasurer pursuant to section 52 of this act, only against the tax in which the estimation is made, and shall not be claimed until after July 1 for the first year of assessment and after August 1st of each subsequent calendar year in which the uniform transitional utility assessment is paid. If, in any calendar year, the credits available against payments in any tax exceed the total amount due in that tax, the remitter may elect to have the excess credits for that year applied to the amounts due in that tax in subsequent years or, if applicable, as a credit to the transitional energy facility assessment payments to be made in the next year. Such credit shall be applied in full to each estimated tax payment beginning in the subsequent year until fully utilized. These credits may not be applied against any other liability except as set forth hereinabove.
N.J.S. § 54:30A-117