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

Sullivan 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 Sullivan County, New Hampshire?

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

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

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

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Sullivan 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

Sullivan County Treasurer

How to Pay

Online

Pay using credit card or e-check

By Mail

Mail check payable to Sullivan County Treasurer

In Person

Visit the Treasurer's office

Other Counties in New Hampshire

Belknap Carroll Cheshire Coos Grafton Hillsborough Merrimack Rockingham

View all New Hampshire counties →

About Sullivan County

Sullivan County is a county in the U.S. state of New Hampshire. As of the 2020 census, the population was 43,063, making it the second-least populous county in New Hampshire. Its county seat is Newport.

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

Related Resources

CountyRollCounty Office Directory

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