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
Columbia County Treasurer
Phone
(608) 742-9613How to Pay
Online
Pay using credit card or e-check
By Mail
Mail check payable to Columbia County Treasurer
In Person
Visit the Treasurer's office
Other Counties in Wisconsin
About Columbia County
Columbia County is a county located in the U.S. state of Wisconsin. As of the 2020 census, the population was 58,490. Its county seat and largest city is Portage.
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.