2nd Installment of Tax Bills

The 2025 tax year mill rate is $20.2599 per $1,000 of property value.

The City of Sun Prairie cannot accept second installment payments. Second installment payments are due by July 31st payable to the Dane County Treasurer:

  • Online by credit card (only for 2nd installment payments or payments after 1/31/26)
  • Mail:
    P.O. Box 1299
    Madison, WI, 53701-1299
  • In person:
    City-County Building
    210 Martin Luther King Jr. Boulevard
    Madison, WI, 53709
  1. How do I change the mailing address on a tax bill?
  2. How do I change a name on a tax bill?
  3. How can I get a copy of a paid receipt for my property taxes?
  4. What is the 1st Dollar Credit?
  5. Where will my tax bill be mailed?
  6. When are my taxes owed?
  7. Where do I pay my taxes?
  8. What if my escrow check is more than my tax payment?
  9. Do I need to endorse my escrow check?
  10. Am I eligible for the Lottery Credit?
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