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

Sullivan County property taxes are due Varies by locality. A second installment is due Varies by locality. This deadline applies to all counties in New York.

What is the penalty for late property tax payment in Sullivan County, New York?

The late payment penalty in Sullivan County is Interest after grace period.

How do I pay Sullivan County, New York 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 York

2026 Property Tax Due Dates

Installment 1

Varies by locality

First installment

Installment 2

Varies by locality

Second installment

Penalty: Interest after grace periodGrace period: 15 days for NYC quarterly

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 York

Albany Allegany Bronx Broome Cattaraugus Cayuga Chautauqua Chemung

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About Sullivan County

Sullivan County is a county in the U.S. state of New York. As of the 2020 census, the population was 78,624. The county seat is Monticello.

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

Related Resources

CountyRollCounty Office Directory

Find the assessor, treasurer & recorder for Sullivan

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Property Tax FAQ Tax Calendar

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