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New Jersey Property Tax GuideAppeal and Lower Your New Jersey Property Tax.
New Jersey has the highest property tax rates in the United States, an average effective rate of 2.23%, with some towns exceeding 3%. The silver lining: NJ gives homeowners a powerful statutory tool called the Chapter 123 corridor that makes appeals more formulaic than almost any other state.
How the New Jersey Appeal Process Works
- Get your assessed value from your municipality's tax assessor (listed on annual postcard mailed in January).
- Look up your municipal average ratio on the NJ Division of Taxation's Table of Equalized Valuations.
- Run the Chapter 123 test: divide assessed value by true market value; if it's outside the 15% corridor, you qualify.
- File Form A-1 with the County Board of Taxation by April 1 (May 1 in revaluation years).
- County Tax Board hearing, informal, present comparable sales and your Chapter 123 ratio.
- Appeal to the NJ Tax Court within 45 days of the County decision. Properties above $1M can skip directly to Tax Court.
Major New Jersey Counties, Where to File
- Bergen County: co.bergen.nj.us/county board of taxation.
- Essex County (Newark): essexcountynj.org/tax board.
- Middlesex County: middlesexcountynj.gov/taxboard.
- Hudson County: hudsoncountynj.org/departments/tax board.
- Monmouth County: visitmonmouth.com/taxboard, ADP municipalities file by January 15.
- Ocean County: co.ocean.nj.us/taxboard.
- Union County: ucnj.org/tax board.
The Chapter 123 ratio trick. If your assessed value divided by your true market value is more than 15% above or below the municipal average ratio, the County Board must adjust. In towns with outdated assessments, this alone wins the appeal without any comparable sales research. Check the NJ Division of Taxation's annual Table of Equalized Valuations first.
When You Probably Qualify for a Reduction
- Your assessed value divided by market value exceeds the Chapter 123 upper corridor
- Recent comparable sales in your town are below your assessment
- Your municipality recently revalued and your home jumped disproportionately
- Your parcel record has errors (square footage, finished basement, lot size)
- Your home has unrepaired damage, flood history, or environmental issues
Get an NJ Form A-1 Package in 48 Hours
We pull your municipal record, run your Chapter 123 analysis, build comparables, and produce a filing ready A 1 for $50 flat.
Start My NJ Appeal →New Jersey Property Tax Appeal FAQ
Will appealing raise my assessment?
In NJ, the County Tax Board has the authority to raise your assessment if evidence shows it is too low, but this is rare for homeowners and only happens if your home is clearly undervalued. Chapter 123 is a two way corridor.
What if I live in a Monmouth County ADP town?
ADP (Assessment Demonstration Program) municipalities have a compressed calendar with a January 15 deadline and earlier preliminary review. Confirm on your postcard before assuming the April 1 statewide deadline applies.
Can I appeal my taxes if I bought last year?
Yes. A recent arm's length purchase price is strong evidence of true market value in NJ, especially when combined with the Chapter 123 ratio calculation.
Do I need to pay my taxes during the appeal?
Yes. NJ requires current taxes to be paid as a condition of having your appeal heard. A refund is issued if you win.