Green Brook, Union County, New Jersey Property Taxes
Median Green Brook, NJ effective property tax rate: 8.46%, significantly higher than the national median of 1.02%, but lower than the New Jersey state median of 2.82%.
Median Green Brook, NJ home value: $136,000
Median annual Green Brook, NJ tax bill: $11,504, $9,104 higher than the national median property tax bill of $2,400.
How are property taxes in Union calculated?
Property taxes in Green Brook, NJ are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Green Brook’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Green Brook, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Green Brook, Union County, New Jersey Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
8.46%
Estimate Property Tax Bill
$11,506
$10,677
Property Tax Rates Across Green Brook, Union County, New Jersey
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Green Brook Tax Rate
8.46%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Union County Tax Rate
6.95%
Median Effective New Jersey Tax Rate
2.82%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Green Brook, Union County, New Jersey
Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
08812 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Assessment Values Across Green Brook, Union County, New Jersey
When examining property taxes in Green Brook, NJ, understanding the distinction between "market value" and "assessed value" is crucial. The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Union County appraisal district estimates the market value for tax purposes. The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
In Union County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of April. Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Green Brook. For example, the median home price in Green Brook is $136,000, with tax bills ranging significantly across the county.
Property Tax Assessment Values Across Green Brook, Union County, New Jersey
Source: Ownwell

$54,000
$394,450
$734,900
Median Green Brook Market Value
$136,000
Median Union County Market Value
$138,900
Median New Jersey Market Value
$282,900
Median United States Market Value
$235,294
Property Tax Assessment Values Across Green Brook, Union County, New Jersey
Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
08812 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Bills Across Green Brook, Union County, New Jersey
In Green Brook, NJ, property tax bills are determined by multiplying the assessed value of a home by the local tax rate. The assessed value is a percentage of the property's market value, which is determined by the local tax assessor. In Green Brook, the median property tax bill is significantly higher than the national median of $2,400, with homeowners facing a substantial tax burden. This is due to the high property values in the area, which lead to higher assessed values and, consequently, higher tax bills.
Homeowners in Green Brook can benefit from appealing their property tax assessments if they believe their home has been overvalued. This is where Ownwell can assist. Our team of experts analyzes your property’s assessment and market data to identify potential savings. By filing a successful appeal, homeowners may significantly reduce their annual property tax bills. With Ownwell's professional guidance, homeowners can navigate the complex appeal process and potentially save thousands on their property taxes.
Median Green Brook Tax Bill
$11,504
Median Union County Tax Bill
$10,366
Median New Jersey Tax Bill
$8,227
Median United States Tax Bill
$2,400
Property Tax Bills Across Green Brook, Union County, New Jersey
Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
08812 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell