When are property taxes due in Merrimack County, New Hampshire?

Merrimack County property taxes are due July 1. A second installment is due December 1. This deadline applies to all counties in New Hampshire.

What is the penalty for late property tax payment in Merrimack County, New Hampshire?

The late payment penalty in Merrimack County is Interest accrues after due date.

How do I pay Merrimack County, New Hampshire property taxes?

You can pay Merrimack County property taxes via Online, mail, in-person.

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Merrimack County Property Tax Due Date

New Hampshire

2026 Property Tax Due Dates

Installment 1

July 1

First installment (estimate)

Installment 2

December 1

Second installment (final)

Penalty: Interest accrues after due dateGrace period: None

Payment Methods

Online, Mail, In-Person

Merrimack County Treasurer

How to Pay

Online

Pay using credit card or e-check

By Mail

Mail check payable to Merrimack County Treasurer

In Person

Visit the Treasurer's office

Other Counties in New Hampshire

Belknap Carroll Cheshire Coos Grafton Hillsborough Rockingham Strafford

View all New Hampshire counties →

About Merrimack County

Merrimack County is a county in the U.S. state of New Hampshire. As of the 2020 Census, the population was 153,808, making it the third most populous county in New Hampshire. Its county seat is Concord, the state capital.

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

Related Resources

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