Taxpayers can appeal their property assessment with the Middlesex County Tax Board, or before April 1st each year. They are located at the County Administration Building, 4th Floor, 75 Bayard St, New Brunswick, NJ 08901. Their contact number is (732) 745-3350. The application forms can be obtained from them and must be filed by the filing deadline. Evidence must be provided to show the assessment should be changed.