The 2015 tax year mill is $23.3677 per $1,000 of property value.

First installment payments are due by January 31st payable to the City of Sun Prairie Treasurer.

• Online by credit card        
• Mail or In person:

                      300 East Main Street
                      Sun Prairie, WI. 53590

Second installment payments are due by July 31st payable to the Dane County Treasurer:

• Online by credit card
• Mail:
  P.O. Box 1299
  Madison, WI, 53701-1299
• In person:
  City-County Building
  210 Martin Luther King Jr. Blvd.
  Madison, WI, 53709