N.J. Stat. Ann. § 54:4-8.25

1. Every resident of this State who is enlisted in any branch of the United States Armed Forces shall be entitled to a deferment of the amount of any tax bill for taxes assessed against real and personal property solely owned by the resident, or with a spouse, that becomes due while the resident is deployed for active service in time of war. This provision shall apply also to a resident of this State who is mobilized for federal active duty as a member of the National Guard or a Reserve Component of the Armed Forces. The deferment shall commence on the tax due date, and shall end 90 days after the last date of deployment or mobilization, as appropriate. The tax amount deferred shall be due and owing on the first day following the 90-day grace period, and shall be paid to the tax collector of the municipality in which the property is located. No interest shall be charged when the deferred property tax amount is paid in full within the 90-day grace period. When the property tax amount is not paid in full within the grace period, interest shall be charged on any unpaid amount at the rate it would have accrued since the original property tax due date.