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Ontario 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

Ontario County Treasurer

How to Pay

Online

Pay using credit card or e-check

By Mail

Mail check payable to Ontario County Treasurer

In Person

Visit the Treasurer's office

About Ontario County

Ontario County is a county in the U.S. state of New York. As of the 2020 United States census, the population was 112,458. The county seat is Canandaigua.

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.