Department of Tax Assessment
201-529-5757 ext. 229


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The Tax Assessor's Office is responsible for the assessment of all real property within the taxing district, and for the processing of deeds, sub-divisions, reviewing all building permits to determine additional value, and keeping up with map changes. 

Any questions regarding current tax assessment, veteran's deduction, and senior citizens deduction can be answered by the Tax Assessor's Office.

The 2016 Assessments for the Township of Mahwah can be found on the New Jersery Association of County Tax Board website:

You can calculate property taxes based on property values with our sample property tax calculator.  

Chapter 75 Post cards were mailed at the end of January of each year stating the current year's assessed value. Taxpayers have the right to file an appeal with the Beren County Board of Taxation if they are not satisfied with their assessment.  Tax appeal forms (with instructions) can be obtained on line at or by calling the Bergen County Tax Board at: 201-336-6300.  The deadline to file an appeal is April 1, of every year.  Patrick Wilkins, Tax Assessor, Ext. 229, Gina Dunko, Principal Clerk, Ext. 223