Tax Assessor

Dawn Guttschall, CTA

Mailing Address:
355 North Avenue

Dunellen, NJ 08812
Phone: (732) 289-8131
Fax: (732) 968- 3872

To calculate your estimated taxes for 2021, click here. 
Once you have clicked on the link an excel spreadsheet should pop up. Click on enable editing. Please type in your ASSESSED VALUE for 2020 and 2021. 

Tax Assessor Office is located in the light green Construction Office building at 101 Prospect Ave, located adjacent to the Skinner Plaza train station parking lot.

Hours:  By appointment. 
Appraisers may fax 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 and to reprint the assessment notice postcard for a specific property, you may click here. ( To print out a copy of the current year assessment postcard, please click on the pdf option next to the property owner's name once you access the "PROPERTY MOD4 RECORD" SCREEN)

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 by the Mayor for August 2020, click here. 
For a map of the properties being inspected this year, click here.


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

(uploaded February 19, 2021)