Freeze Act
A New Jersey law that keeps an assessment set by a final appeal judgment in place for that tax year and the next two. It stops a town from forcing an owner to appeal again every year.
New Jersey example
Say the county board lowers your assessment from $400,000 to $360,000 and nobody appeals further. The $360,000 generally stays for that tax year and the next two. The exceptions are a full townwide revaluation or reassessment, or the assessor showing at appeal that the property's value changed after the assessment date.
Official source
Handbook for New Jersey Assessors (NJ Division of Taxation, revised July 2024)
This is a plain-English summary. Rules and dollar amounts change, so check the official source or a professional before you file or sign anything.