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Middlesex 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

Middlesex County Treasurer

How to Pay

Online

Pay using credit card or e-check

By Mail

Mail check payable to Middlesex County Treasurer

In Person

Visit the Treasurer's office

About Middlesex County

Middlesex County is a county located in the U.S. state of New Jersey, extending inland from the Raritan Valley region to the northern portion of the Jersey Shore. As of the 2020 United States census, the county was the state's third-most populous county with a population of 863,162, its highest decennial count ever and an increase of 53,304 (+6.6%) from the 2010 census count of 809,858, which in turn reflected an increase of 59,696 (8.

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

Get Deadline Reminders

We'll email you 336 hours 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.