Paying Property

Tax Payment Schedule provides information on first installment collections.

Payment Options provides information on paying taxes with a credit card or E-check.

Frequently Asked Questions

Assistance Programs

Payment Correction Policy

Tax Database

Provides assessed value, legal description, current year tax amount including fair market value, lottery credit claimed, special charges, and parcel payment history.

Lottery Credit

Lottery Credit FAQ's provides information on reduction for owner occupied residences.

About the Treasurer's Office

  • The Treasurer is elected to a four-year term and is responsible for the safety, disbursement and investment of funds on deposit in the Treasurer’s Office consistent with State Statutes and County Board policy.
  • The Treasurer's Office maintains property tax records, collects property taxes, and is responsible for transactions affecting delinquent taxes and foreclosures according to Wisconsin Statutes, 75.521. 
  • The County Treasurer provides information and services to local municipal treasurers, assessors, clerks and to the public. Rock County contracts with numerous municipalities to be the collection agent for property taxes due and payable by January 31 of each year.

Contact Information

Office Location:
Rock County Courthouse
2nd Floor East Wing
51 South Main Street
Janesville, WI  53545

Mailing Address:
Rock County Treasurer
PO Box 1508
Janesville, WI  53547-1508

Phone:    (608) 757-5670
Fax:        (608) 757-5577

Monday - Friday Hours:
8:00 AM - 5:00 PM
Closed on Holidays

Vicki L. Brown

Email Treasurer

Rock County, State of Wisconsin
All Rights Reserved