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Updated 2025 Tax Year

Clark County
Property Tax Guide

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

10 Official Sources
8 min read
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Quick Facts
Tax Rate
Varies by district - typically 1.5-2.5% of assessed value depending on municipality and school district overlay
1st Due
Jan 31
2nd Due
Jul 31
Exemptions
5+ Available
Section 1

How Property Tax Works

Clark County, Wisconsin operates on a property tax system that serves as the primary funding mechanism for essential county services, local municipalities, school districts, and special service districts. Property taxes in Clark County fund critical services including education, public safety, road maintenance, emergency services, and county administration. The tax assessment and collection process is managed by the Clark County Assessor's office, which calculates tax rates annually based on adopted budgets submitted by each taxing jurisdiction.

Property tax rates in Clark County vary significantly by location within the county due to the overlay of multiple taxing districts. Each property owner pays taxes to several entities: Clark County itself, their local municipality (city, town, or village), their school district, and any applicable special districts such as fire protection or technical college districts. The combined effective tax rate typically ranges around Wisconsin's state average of approximately 1% of assessed value, though individual properties may experience higher or lower rates depending on their specific location and the services provided by their local taxing districts.

The County Assessor calculates final tax rates each year by combining the assessed values of all properties within each district with the budget amounts submitted by every taxing entity. This means that property tax rates can fluctuate annually based on both changes in property values and changes in municipal, school, and special district spending levels.

Section 2

What Makes Up Your Tax Bill

ComponentDescriptionRate Setting Process
County TaxFunds county services, administration, courts, sheriffSet by Clark County Board based on annual budget
Municipal TaxCity/town/village services, roads, local administrationSet by individual municipality based on local budget
School District TaxK-12 education, school operations, facilitiesSet by local school district based on education budget
Technical College TaxRegional technical college systemSet by Wisconsin Indianhead Technical College district
Fire District TaxFire protection and emergency servicesSet by individual fire districts where applicable
Special AssessmentsVaries by location (library, sanitary, etc.)Set by individual special districts

Important Note: Final tax rates for the 2025 levy year are calculated annually after all taxing jurisdictions submit their adopted budgets to the Clark County Assessor. The specific tax rate for any property depends on which combination of taxing districts serve that location. Property owners should contact the Clark County Assessor's office for their specific tax rate information, as rates can vary significantly between different areas of the county based on the services provided by local districts.

Section 3

When Are Property Taxes Due?

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

First Installment
Jan 31
Delinquent after Dec 10
Second Installment
Jul 31
Delinquent after Apr 10
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 Clark County are additional property tax assessments that occur when there are changes to a property's value or ownership status during the tax year. The most common triggers for supplemental taxes include new construction, substantial improvements to existing structures, or corrections to assessments discovered after the initial tax roll is completed.

When supplemental taxes are assessed, they are calculated based on the difference between the property's previous assessed value and its new assessed value, multiplied by the applicable tax rate for that location. The supplemental tax covers the period from when the change occurred until the end of the current tax year. For example, if a property owner completes a $100,000 addition to their home in July, they would receive a supplemental tax bill for the increased assessed value from July through December.

Property owners typically receive supplemental tax bills separately from their regular annual property tax statement. These bills have their own due dates and must be paid in addition to the regular property tax obligation. The Clark County Treasurer's office processes all supplemental tax bills and can provide specific information about payment schedules and amounts.

Example Calculation

Example 1: $300,000 Home

  • Assessed Value: $300,000
  • Homestead Credit Applied: -$1,200 (application required)
  • Net Taxable Value: $298,800
  • Estimated Tax Rate: 1.8% (varies by district)
  • Annual Tax: $5,378
  • Monthly Escrow: $448

Example 2: $600,000 Home

  • Assessed Value: $600,000
  • Homestead Credit Applied: -$1,200 (application required)
  • Net Taxable Value: $598,800
  • Estimated Tax Rate: 1.8% (varies by district)
  • Annual Tax: $10,778
  • Monthly Escrow: $898

Example 3: $1,000,000 Home

  • Assessed Value: $1,000,000
  • Homestead Credit Applied: -$1,200 (application required)
  • Net Taxable Value: $998,800
  • Estimated Tax Rate: 1.8% (varies by district)
  • Annual Tax: $17,978
  • Monthly Escrow: $1,498

Important Notes: Tax rates shown are estimates and vary significantly by location within Clark County based on local taxing districts. Homestead credit amounts and other available credits require annual application and are not automatically applied. Actual tax calculations depend on your specific property location and the combination of taxing districts that serve your area.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Clark County require borrowers to establish an escrow account to manage property tax payments. The lender collects monthly payments equal to one-twelfth of the annual property tax bill along with the mortgage payment, then pays the taxes directly to Clark County when they become due before January 31st each year.

Lenders typically conduct an annual escrow analysis to ensure adequate funds are collected. If property taxes increase due to reassessment or rate changes, the lender will adjust monthly escrow payments and may require additional payments to cover shortfalls. Conversely, if taxes decrease, property owners may receive refunds or reduced monthly payments. Property owners should review their annual escrow statements carefully and contact their lender with any questions about escrow calculations.

Property owners who own their homes outright or have paid off their mortgages are responsible for making tax payments directly to the Clark County Treasurer's office. The Treasurer's office, located in Neillsville, accepts payments in person, by mail, or through available online payment systems. Property owners should verify accepted payment methods and any associated fees by contacting the Treasurer's office directly.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
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Section 6

Frequently Asked Questions

Q: When are property taxes due in Clark County for the current tax year? A: Property taxes are due before January 31st each year. Late payments are subject to penalties and interest charges.

Q: What is the Wisconsin Homestead Credit and how do I apply? A: The Homestead Credit is a state tax credit that helps limit property tax increases on your primary residence. It caps annual assessment increases rather than reducing market value. You must apply annually through the Wisconsin Department of Revenue, and applications are typically due by July 1st.

Q: Are there other tax credits available in Clark County? A: Yes, Wisconsin offers various tax credits including the School Levy Credit and Lottery Credit, but most require annual application. Contact the Clark County Assessor's office or Wisconsin Department of Revenue for specific eligibility requirements and application deadlines.

Q: How often are properties reassessed in Clark County? A: Wisconsin law requires property reassessment, but the frequency varies. Contact the Clark County Assessor's office for your property's assessment schedule and information about the appeals process if you disagree with your assessment.

Q: What happens if I pay my property taxes late? A: Late payments incur penalties and interest charges. Delinquent taxes can be paid at the Clark County Treasurer's office in Neillsville, but additional fees will apply.

Q: Can I pay my property taxes online? A: Contact the Clark County Treasurer's office to verify current online payment options and any associated processing fees.

Q: Why do property tax rates vary within Clark County? A: Different areas of the county are served by different combinations of school districts, municipalities, fire districts, and other special taxing districts, each with their own tax rates.

Q: How can I find out my specific tax rate? A: Contact the Clark County Assessor's office with your property address to determine which taxing districts serve your location and your combined tax rate.

Q: What triggers a supplemental tax assessment? A: New construction, major improvements, assessment corrections, or ownership changes can trigger supplemental taxes during the tax year.

Q: Do tax credits apply automatically to my bill? A: No, most tax credits including the Homestead Credit require annual application and are not automatically applied to your property tax bill.

Verified Sources

Backed by 10 Official Government Sources

Every fact in this guide is sourced from official county, state, and federal documents.

01
County
Tax Rates | Clark Countyclark.wa.gov
02
Local Government Revenue Optionsdocs.legis.wisconsin.gov
03
County
Resolution RES.24-30 - 2025 County Tax Levy and Rateozaukeecounty.gov
04
County
How Do I ? (FAQ) | Town Of Mentor in Clark County ...townofmentorwi.gov
05
County
Treasurer | Clark County WIclarkcountywi.gov
06
Tax Doc
DOR Property Tax - Wisconsin Department of Revenuerevenue.wi.gov
07
Wisconsinirs.gov
08
DOR Homestead Credit - Wisconsin Department of Revenuerevenue.wi.gov
09
Tax Doc
wisconsin legislative council tax exemptions for residential ...docs.legis.wisconsin.gov
10
Hoard Appeal Response Brief - FINALacefiling.wicourts.gov
All sources verified as of 2025 Tax Year

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