Rate Breakdown

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

How Property Tax Works in Jefferson County

Property taxes in Jefferson County, Wisconsin, are 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 Jefferson 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 set by school districts, municipalities, and the county. For example, if your home is assessed at $200,000 and the combined mill rate is 20, your annual tax would be $4,000.
• Tax Calculation: Taxes = (Assessed Value × Mill Rate) / 1,000. Adjustments may apply for exemptions or special assessments.

Available Exemptions

Jefferson County offers several property tax exemptions to eligible residents. Key exemptions include:

• Homestead Credit: For low-income homeowners, this Wisconsin program reduces property taxes via a credit on income tax returns.
• Senior Citizen Exemption: Residents aged 65+ may qualify for a reduction if their household income falls below state thresholds.
• Disability Exemption: Homeowners with disabilities may be eligible for tax relief, depending on income and disability status.
• 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 Jefferson County Treasurer's Office by specified deadlines.

Payment Schedule & Deadlines

Jefferson County property taxes are typically due in two installments:

• First Installment: Due by January 31. This payment is an estimate, often 50% of the prior year's total tax.
• Second Installment: Due by July 31. This payment reflects the finalized tax amount after adjustments.

Late payments incur penalties: 1.5% per month (up to 18% annually). Delinquent taxes may result in a tax lien or foreclosure. Payment options include mail, online, or in-person at the Treasurer's Office.

Appealing Your Assessment

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

• Review Your Assessment: Check your assessment notice (mailed in spring) or contact the Assessor's Office.
• File an Appeal: Submit a written appeal to the Board of Review by the deadline (usually in May or June). Include evidence (e.g., recent comparable sales, appraisal reports).
• Attend the Hearing: Present your case to the Board of Review. If unsatisfied, you may appeal to the Wisconsin Department of Revenue or circuit court.

Deadlines and forms are available on the Jefferson County website. Acting promptly is critical, as appeals are time-sensitive.