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Mercer County Property Tax Due Date

New Jersey

2026 Property Tax Due Dates

Installment 1

February 1

Q1 (quarterly billing)

Installment 2

August 1

Q3

Penalty: Interest accrues after grace periodGrace period: 10 days (until 10th of month)

Payment Methods

Online, Mail, In-Person

Mercer County Treasurer

How to Pay

Online

Pay using credit card or e-check

By Mail

Mail check payable to Mercer County Treasurer

In Person

Visit the Treasurer's office

About Mercer County

Mercer County is a county located in the U.S. state of New Jersey. Its county seat is Trenton, also the state capital, prompting its nickname The Capital County. Mercer County alone constitutes the Trenton–Princeton metropolitan statistical area and is considered part of the New York combined statistical area by the U.S. Census Bureau, but also directly borders the Philadelphia metropolitan area and is included within the Federal Communications Commission's Philadelphia Designated Media Market Area.

Source: Wikipedia — content available under CC BY-SA 4.0

Get Deadline Reminders

We'll email you 2 weeks before your property taxes are due.

Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.