2026 Property Tax Due Dates
Installment 1
January 31
Full or first installment
Installment 2
July 31
Second installment
Penalty: 1% monthly + 0.5% penalty monthlyGrace period: 5 business days
Payment Methods
Online, Mail, In-Person
Ozaukee County Treasurer
Phone
(262) 284-8280How to Pay
Online
Pay using credit card or e-check
By Mail
Mail check payable to Ozaukee County Treasurer
In Person
Visit the Treasurer's office
Other Counties in Wisconsin
About Ozaukee County
Ozaukee County is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 91,503. Its county seat is Port Washington.
Source: Wikipedia — content available under CC BY-SA 4.0
Related Resources
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.