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All Middlesex County buildings will remain closed to the general public until further notice due to COVID-19. Only select County services are available on an appointment basis.
Johnson and Donaldson Parks are open with limited services and amenities. For more information, click here.




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Created by legislation in 1909, County Boards of Taxation serve as the supervising taxing authority for their respective counties.  The office of the Board of Taxation falls into two major categories:  Administrative and Appellate. Through legislation enacted in 1973, all 21 County Boards of Taxation operate under a uniform set of rules first promulgated by the Division of Taxation entitled, Rules for County Boards of Taxation, which help to ensure uniform operation of the boards.  The County Tax Administrator is responsible for the administrative/statutory day–to-day office functions.
The Board of Taxation’s primary responsibility is the certification of property tax assessments.   Other functions of the Board of Taxation are the equalization of assessments for the purpose of county taxes, the preparation of the abstract of ratables, the supervision of municipal tax assessors, the certification of municipal tax rates and other various (mandated) tasks and reports, and the development of inter-municipal equalization of assessments.  The Board of Taxation also conducts hearings of real property tax assessment appeals filed by the taxpayer and renders judgments.
Our goal is to serve the twenty-five municipalities within Middlesex County efficiently, respectfully, and professionally within our jurisdiction. We invite you to browse our website and search our real property tax related links for information.
     Richard Lorentzen          President
     Michael Lachs                   Commissioner
     Kevin Egan                          Commissioner
     Richard Greene                Commissioner
2017 Tax Appeal Applications:
  • Will be available after January 10, 2017.
  • Can be filed after February 1, 2017. 
  • Have a deadline of April 1 at 4:15pm.
  • Towns under a Revaluation/Reassessment can file until May 1 at 4:15pm.
Tax Appeal Forms and Guidelines:
Related Finance Offices:
Ryan Riccio Tax Board Administrator Contact me

County Administration Building, 4th Floor
75 Bayard Street
New Brunswick, NJ   08901
Phone Number: (732) 745-3350 
Fax: (732)-745-3767
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