Mercer County, New Jersey
Princeton, N.J. Property Tax Rate 2026
Official 2025 Division of Taxation rates for Princeton. The general rate is per $100 of assessed value. A sale price is not an assessed value.
- General tax rate
- 2.733
- Effective tax rate
- 1.814
- Equalization ratio
- 66.37%
per $100 assessed
per $100 market value
assessed ÷ market, from the two rates
Example tax bills
Approximation using the effective rate. The general rate is applied to the equalized assessment, not the sticker price.
- $500,000 market value → assessed about $331,870 → about $9,070/year
- $750,000 market value → assessed about $497,805 → about $13,605/year
Princeton market report · Homes for sale in Princeton · All NJ tax rates
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Questions about Princeton taxes
What is the property tax rate in Princeton, NJ?
The official 2025 general tax rate in Princeton (Mercer County) is 2.733 per $100 of assessed value. The effective tax rate is 1.814 per $100 of market value.
What is the effective tax rate in Princeton?
Princeton's effective tax rate is 1.814. That rate already converts market value into an approximate tax bill. The general rate applies only to assessed value.
How much is property tax on a $500,000 home in Princeton?
Using the equalization ratio of 66.37%, a $500,000 market value is about $331,870 assessed. The approximate annual tax is $9,070, which is $500,000 times the effective rate of 1.814 per $100.
How do I appeal my Princeton property assessment?
Enter your Princeton address on this page. Garden State AI compares the assessment with recent sales under NJ Chapter 123 and, when the numbers support it, prepares the appeal packet.
Source: 2025 General Tax Rates, NJ Division of Taxation. Rates are not a legal opinion and do not include exemptions.