Tax Assessor

Dawn Guttschall, CTA

Mailing Address:
355 North Avenue

Dunellen, NJ 08812
Phone: (732) 289-8131 
Fax: (732) 968- 3903
Hours: By appointment. 
Appraisers may email their requests for square footage.

The Tax Assessor is responsible to the property owners of Dunellen Borough for the fair assessment of all property which results in the overall goal of distributing the tax burden equitably throughout the district. The primary duty is to “determine the full and fair value of each parcel of real property situated within the taxing district as such prices as, in her/his judgment, it will sell for at a fair and bona fide sale by contract” (N.J.S.A. 45:4-23). The Assessor works on behalf of Dunellen Borough under the direction and supervision of the New Jersey Division of Taxation and the Middlesex County Board of Taxation.   The Assessor is not involved with the total amount of tax collected and the municipal budget. The tax rate for each municipality is calculated by the Middlesex County Board of Taxation. The sum of the budget requirements needed each year, by all government entities (Municipal, County and the Board of Education) divided by the total ratables for the district determines what is called the tax rate. With changes in the budget, tax rates and assessments all affecting the tax you pay, the key to your total yearly taxes due is based upon the amount to be raised by taxation to cover the cost of services from all government entities.

                  NJ Division of Taxation Pamphlet - How property is valued for property tax purposes
                                                              NJ  Property Taxpayers' Bill of Rights 2021
                                                               NJ Homeowner's Guide to Property Taxes

To search for assessment information  for a specific property, you may click here.

For a brochure titled.: "A Short and Simple Glimpse at the Property Tax in New Jersey," click here.

Dunellen Tax Maps, April 2017, click here.

Properties being reassessed each year
Letter sent out  to residents, click here. 
Explanation of Reassessment, click here.
Message from the Mayor for August 2020, click here. 
Message from the Mayor February 2024,click here. 
For a map of inspections done each year, click here. 
If you would like to contact Professional Property Appraisers to make an appointment or see the ID's of the appraisers that may come to your home please visit their website, 

For Frequently Asked Questions (FAQ) on
Reassessment and the Program being Carried out in Dunellen, click here.

(uploaded February 16, 2023)
For a memorandum explaining the Tax Exemptions and Abatements Under the Five-Year Exemption and Abatement Law, and the recently adopted Ordinance 2022-16 (July 5, 2022), click here.