Taxation Board

About the Board

Created by the legislature in 1909, Boards of Taxation serve as the supervising taxing authority for their respective counties. County Boards of Taxation are primarily responsible for certifying property tax assessments. Additionally, the Board of Taxation is charged with equalization of assessments for the purpose of county taxes, the yearly production of the abstract of ratables, supervision of municipal assessors,  certification of municipal tax rates and other various tasks and reports. The Board of Taxation also serves as the venue for real property tax assessment appeals filed by the taxpayer against the municipal assessor.

On behalf of the Commissioners of the Union County Board of Taxation, we invite you to browse our website and search our real property tax related links information

Coronavirus Updates

The Appeal Deadline is now  July 1st, 2020 as per P.L. 2020, c 35. which was signed into law by Governor Murphy on May 28th, 2020. On July 1st Appeals can be filed online up to midnight (12PM) or must be received by our office by no  later than 4pm.  Appeals postmarked on or before July 1st but not received in our office  until after July 1st will be rejected. 

Effective immediately property tax appeals filings only accepted via regular mail or by filing online.

Due to the public health emergency caused by COVID-19, and the subsequent issuance of the Governor’s Executive Order 107, the Union County Board of Taxation effective April 16, 2020 and until further notice, will conduct all future meetings remotely by teleconference  without providing a physical meeting place.  The Boards meeting schedule will remain unchanged.  The public can participate via teleconference by calling to 1-646-741-5292 then entering meeting ID 112-909-4823. The public is required to announce their presence on the call and wait until the Public Comment portion of the meeting to address the Board.   

Notices

• The Borough of Mountainside Revaluation for 2020 has been granted an extension to 2021 due to various delays by the township. Your new assessment as a result of the revaluation will not be reflected nor become effective until the tax year 2021. Your assessed value for 2020 will still be based off your 2019 assessed value except where improvements, judgments and few other circumstances resulted in a change. If you have any questions please contact the tax assessor for the Borough of Mountainside at 908-232-2409 or the Borough Clerk at 908-232-2400.

Contact Information 

Commissioners