When are property taxes due in Rock County, Wisconsin?

Rock County property taxes are due January 31. A second installment is due July 31. This deadline applies to all counties in Wisconsin.

What is the penalty for late property tax payment in Rock County, Wisconsin?

The late payment penalty in Rock County is 1% monthly + 0.5% penalty monthly.

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

Wisconsin

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

Phone

How to Pay

Online

Pay using credit card or e-check

By Mail

Mail check payable to Rock County Treasurer

In Person

Visit the Treasurer's office

Rock County is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 163,687. Its county seat is Janesville.

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

Find the assessor, treasurer & recorder for Rock

We'll email you 2 weeks 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.