Rate Breakdown

Property taxes in Walworth County are calculated by multiplying the assessed value (minus exemptions) by the total local millage rate.

How Property Tax Works in Walworth County

Property taxes in Walworth County are calculated based on the assessed value of your property and the combined millage rates (tax rates) set by local taxing authorities. Here’s how the process works:

• Assessment: The Walworth County Assessor's Office evaluates your property’s market value annually. Assessments aim to reflect fair market value as of January 1 each year.
• Millage Rates: Tax rates are applied per $1,000 of assessed value. These rates are determined by local entities, including school districts, municipalities, and the county itself.
• Tax Calculation: Your tax bill is calculated by multiplying the assessed value (after exemptions) by the total millage rate. For example, a home valued at $200,000 with a mill rate of 20 would owe $4,000 annually.

Available Exemptions

Wisconsin offers several property tax exemptions that may reduce your tax burden:

• Homestead Credit: Low-income homeowners may qualify for this refundable credit based on income and property taxes paid.
• Senior Citizen Exemption: Residents aged 65+ may qualify for additional deductions, depending on income limits.
• Disability Exemption: Homeowners with disabilities may be eligible for reduced assessments or exemptions.
• Veteran Exemptions: Veterans with service-connected disabilities or wartime service may qualify for partial or full exemptions. Documentation (e.g., DD-214) is required.

Applications for exemptions must be filed with the Walworth County Treasurer’s Office by the annual deadline (typically January 31).

Payment Schedule & Deadlines

Walworth County property taxes are due in two installments:

• First Installment: Due January 31 to your local municipal treasurer. This payment equals 50% of the prior year’s total tax.
• Second Installment: Due July 31 to the Walworth County Treasurer. This payment reflects the remaining balance after adjustments for the current year’s assessment.

Late Payments: Penalties apply for missed deadlines. A 1.5% monthly interest charge (18% annually) is added to overdue balances. Persistent delinquency may result in a tax lien or foreclosure.

Appealing Your Assessment

If you believe your property is overassessed, follow these steps to appeal:

• Informal Review: Contact the Walworth County Assessor’s Office to discuss your assessment. Errors can often be corrected without a formal appeal.
• Formal Appeal: File a written objection with the Board of Review by the deadline (typically mid-May). Provide evidence (e.g., recent comparable sales, appraisal reports) to support your claim.
• Further Appeals: If unsatisfied, you may appeal to the Wisconsin Department of Revenue or circuit court within 90 days of the Board of Review’s decision.

Deadlines and requirements are strict, so act promptly. Visit the Walworth County website or assessor’s office for detailed instructions.