Rate Breakdown

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

How Property Tax Works in Clark County

Property taxes in Clark County, Wisconsin, are calculated based on the assessed value of your property and the millage rate (tax rate) applied by local taxing authorities. Here's how the process works:

• Assessment: The Clark County Assessor's Office determines the fair market value of your property as of January 1 each year. Assessments are based on recent sales of comparable properties, construction costs, and income potential (for commercial properties).
• Millage Rates: Tax rates are set by local governments, including school districts, municipalities, and the county. One "mill" equals $1 of tax per $1,000 of assessed value. For example, a home valued at $200,000 with a mill rate of 20 would owe $4,000 annually.
• Tax Calculation: Your tax bill = (Assessed Value × Equalized Ratio) × Mill Rate. The equalized ratio ensures fairness across assessments statewide.

Available Exemptions

Wisconsin offers several property tax exemptions to eligible residents:

• Homestead Credit: Low-income homeowners may qualify for a refundable credit based on property taxes paid and household income.
• Senior Citizen Exemption: Residents aged 65+ may qualify for reduced taxes if their income falls below state thresholds.
• Disability Exemption: Homeowners with disabilities may be eligible for exemptions if they meet income requirements.
• Veteran Exemptions: Veterans with service-connected disabilities or unremarried surviving spouses may qualify for partial or full exemptions.

Applications for exemptions must be filed with the Clark County Treasurer’s Office by the annual deadline (typically May 1).

Payment Schedule & Deadlines

Clark County property taxes are due in two installments:

• First Installment: Due January 31 (or the next business day if it falls on a weekend/holiday). This payment is an estimate, usually 50% of the prior year’s tax.
• Second Installment: Due July 31, reflecting the finalized tax amount after assessments are confirmed.

Late payments incur a 1.5% monthly interest penalty. If taxes remain unpaid for over two years, the county may initiate foreclosure proceedings. Payment options include mail, in-person at the Treasurer’s Office, or online via the county website.

Appealing Your Assessment

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

• Review Your Assessment Notice: Clark County mails assessment notices in spring. Verify the accuracy of property details (e.g., square footage, condition).
• File an Appeal: Submit a written objection to the Board of Review by the deadline (typically within 30 days of the notice). Include evidence like recent appraisals or comparable sales.
• Attend the Hearing: Present your case to the Board of Review, which may adjust the assessment if justified.

For complex disputes, consider hiring a licensed appraiser or tax attorney. Appeals must be filed annually—changes are not retroactive.