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Updated 2025 Tax Year

Dunn County
Property Tax Guide

Everything you need to know about property taxes in Dunn County, WI. Rates, due dates, exemptions, and how it affects your monthly payment.

8 Official Sources
8 min read
Quick Facts
Tax Rate
Approximately 1% base rate + municipal/school district additions (varies by location within county)
Exemptions
5+ Available
Section 1

How Property Tax Works

Dunn County, Wisconsin operates on a property tax system that serves as the primary funding mechanism for local government services, including county operations, schools, municipalities, and special districts. Property taxes in Dunn County fund essential services such as law enforcement, road maintenance, emergency services, schools, and various county departments. The county follows Wisconsin's property tax structure with a base rate of approximately 1% of assessed value, though actual rates vary significantly depending on your specific location within the county.

Your actual property tax rate depends on which taxing jurisdictions serve your property, including your municipality, school district, technical college district, and any special purpose districts. These combined rates typically result in total effective tax rates ranging from approximately 1.5% to 2.5% of assessed value across different areas of Dunn County. The county conducts property assessments annually, with no statutory cap on assessment increases, though various tax credits may help limit your actual tax burden if you qualify and apply for them.

Section 2

What Makes Up Your Tax Bill

Based on available information, the FY 2026 property tax levy rates for Dunn County are still being finalized through the budget process. The following represents the typical components that make up your total property tax bill:

ComponentEstimated Rate RangeDescription
County Levy0.3% - 0.5%Funds county services, sheriff, courts, social services
School Districts0.8% - 1.2%Local school district operations and debt service
Municipality0.2% - 0.6%City/town/village services, varies by municipality
Technical College0.1% - 0.2%Chippewa Valley Technical College district
Special Districts0.1% - 0.3%Fire districts, sanitary districts, other special purposes
Total Estimated Range1.5% - 2.8%Combined rate varies by location within county

Note: Final FY 2026 rates will be determined after the County Board approves the budget following the public hearing. Actual rates vary significantly by specific taxing districts serving your property location.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Dunn County, property taxes are due in two installments:

Pro tip: If you pay through mortgage escrow, your lender splits these payments across your monthly mortgage. If you pay directly, set calendar reminders to avoid late penalties.
Section 4

Supplemental Tax Bills

Supplemental taxes in Dunn County are additional property tax assessments that occur when there are changes to property ownership, new construction, or improvements completed after the annual assessment date. These taxes are calculated based on the difference between the old assessed value and the new assessed value, multiplied by the applicable tax rate for the remaining portion of the tax year.

Common triggers for supplemental taxes include: completion of new construction projects, major property improvements or additions, subdivision of land, or corrections to previous assessments. For example, if you complete a home addition valued at $50,000 and your total tax rate is 2.0%, you would owe a supplemental tax of approximately $1,000, prorated for the remaining months in the tax year. The supplemental tax becomes due typically within 30 days of the notice being mailed to the property owner.

Example Calculation

The following examples show estimated annual property taxes for different home values in Dunn County, assuming a 2.0% effective tax rate after applicable credits:

Example 1: $300,000 Home

  • Assessed Value: $300,000
  • Homestead Credit Applied: -$1,200 (if qualified and applied)
  • Net Taxable Value: $300,000
  • Tax Rate: 2.0%
  • Annual Tax: $6,000 - $1,200 = $4,800
  • Monthly Escrow: $400

Example 2: $600,000 Home

  • Assessed Value: $600,000
  • Homestead Credit Applied: -$1,200 (if qualified and applied)
  • Net Taxable Value: $600,000
  • Tax Rate: 2.0%
  • Annual Tax: $12,000 - $1,200 = $10,800
  • Monthly Escrow: $900

Example 3: $1,000,000 Home

  • Assessed Value: $1,000,000
  • Homestead Credit Applied: -$1,200 (if qualified and applied)
  • Net Taxable Value: $1,000,000
  • Tax Rate: 2.0%
  • Annual Tax: $20,000 - $1,200 = $18,800
  • Monthly Escrow: $1,567

Note: Tax credits require annual application and are not automatic. Actual rates vary by location within Dunn County.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Dunn County require borrowers to maintain an escrow account for property tax payments, particularly for loans with less than 20% down payment. Your lender collects monthly escrow payments as part of your mortgage payment and pays your property taxes directly to the county when they become due. The monthly escrow amount is calculated by dividing your annual property tax bill by 12, often with an additional cushion to account for potential tax increases.

Property taxes in Dunn County are typically due in two installments, and your lender will receive tax bills directly from the county treasurer's office. You should receive an annual escrow analysis statement from your lender showing the previous year's activity and any adjustments needed for the coming year. If your property taxes increase significantly due to reassessment or rate changes, your monthly escrow payment may be adjusted accordingly. Property owners without escrow accounts are responsible for making payments directly to the Dunn County Treasurer's office by the specified due dates.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
  • See how rising taxes will change your monthly payment
  • Plan ahead instead of being surprised by "shortage" letters
Section 6

Frequently Asked Questions

Q: When are property taxes due in Dunn County for FY 2026? A: Property taxes are typically due in two installments. Contact the Dunn County Treasurer's office for specific due dates for the current fiscal year, as payment schedules can vary.

Q: What tax credits are available and how do I apply? A: Wisconsin offers several tax credits including the Homestead Credit for qualifying homeowners. The Wisconsin Fund also provides financial assistance to qualified homeowners experiencing hardship. All credits require annual application and are not automatic - contact your county assessor for available programs and application deadlines.

Q: How does the Homestead Credit work? A: The Homestead Credit helps limit increases in assessed value for your primary residence, but you must file annually to receive this benefit. It does not reduce your property's market value but can reduce your tax bill. Application is required each year by the specified deadline.

Q: How often are properties reassessed in Dunn County? A: Properties are assessed annually in Dunn County. Assessment notices are typically mailed in spring, and property owners have the right to appeal their assessment if they believe it's incorrect.

Q: What happens if I pay my property taxes late? A: Late property tax payments incur penalties and interest charges. Contact the Dunn County Treasurer's office for specific penalty rates and payment options if you're unable to make payments by the due date.

Q: Can I pay my property taxes online? A: Check with the Dunn County Treasurer's office for available online payment options and accepted payment methods for property tax payments.

Q: Why do tax rates vary within Dunn County? A: Your total tax rate depends on which local governments serve your property, including your municipality, school district, and special districts like fire or sanitary districts. Different combinations result in different total rates.

Q: How do I appeal my property assessment? A: If you believe your assessment is incorrect, you can appeal to the local Board of Review. Appeals must typically be filed within a specific timeframe after assessment notices are mailed - contact the county assessor for deadlines and procedures.

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