AppealDesk

Dane County Property Tax Appeal, Wisconsin

Travis BunnTravis Bunn·Updated July 24, 2026

Dane County is Wisconsin's second-most populous county with approximately 590,400 residents and serves as the state's governmental center, with Madison as both the county seat and state capital. Major population centers include Madison, Sun Prairie, Fitchburg, and Middleton. Property tax appeals are particularly important here because Dane County has one of the highest property tax burdens in Wisconsin and the nation, the median annual tax bill of $6,276 to $6,494 is significantly above the national median of $2,400. With an effective tax rate between 1.57% and 1.80%, depending on location within the county, and median home values ranging from $366,100 to $394,800, homeowners face substantial annual tax obligations that make assessment accuracy critical.

Notable cities: Madison, Sun Prairie, Fitchburg, Middleton, Verona

Median Home

$367,257

Tax Rate

1.71%

Annual Tax

$6,276

Population

590,400

On the typical Dane County home, valued near $367,257 at the county’s effective tax rate of 1.71%, an over-assessment of even 10% means you are overpaying year after year until you appeal it. Here is how to find out if yours qualifies.

2026 Appeal Deadline: Varies by municipality (Madison: May 15, 2026)

This year's appeal window has passed in most of Wisconsin. Order now and we re-run your numbers free when the window reopens, so your evidence is ready the day your next notice lands.

Wisconsin has one of the strictest appeal deadlines in the nation. Property owners must file a written or oral objection with their municipal clerk at least 48 hours before the first Board of Review meeting, which typically occurs in May. Most Dane County municipalities have Board of Review sessions between mid-May and late May. Missing this deadline means waiting until the following year to appeal. In Madison specifically, objections must be filed by 4:30pm on May 15, 2026.

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Wisconsin farm with red barn. Dane County appeal guide.

How Dane County Assesses Property

100%of market value

Assessed by: Local municipal assessors (most municipalities) and Dane County Property Lister (unincorporated areas)

Assessment cycle: annual

Notices typically mailed: March-April (typically mid-March to early May)

In Wisconsin, properties are assessed at 100% of their fair market value as of January 1st each year. This means your assessed value should equal your home's market value. For example, if your home's market value is $367,000 (Dane County's median), at Wisconsin's 100% assessment ratio your assessed value would be $367,000, resulting in approximately $6,276 in annual taxes at the county's effective rate of 1.71%. Unlike some states that assess at a percentage of market value, Wisconsin law requires full-value assessment, making your assessment notice a direct estimate of what your property could sell for on the open market.

The Appeal Process

Appeals are heard by the Board of Review. The Board of Review hearing is a formal, quasi-judicial proceeding where you present evidence under oath. You'll have 5-15 minutes to explain why your assessment is incorrect, present comparable sales data, and answer questions from board members. The assessor will present their evidence defending the assessment. The board makes decisions based solely on evidence presented.

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Step 1: Attend Open Book (optional but recommended). This informal meeting, held 7-14 days before Board of Review, allows you to discuss your assessment with the assessor and potentially resolve issues without a formal appeal. Check your assessment notice for Open Book dates, typically in late April or early May.

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Step 2: File your objection at least 48 hours before the Board of Review meeting. Complete Form PA-115A or submit a written objection to your municipal clerk stating your grounds for appeal and proposed property value. Include your parcel number, contact information, and a brief explanation of why you believe the assessment is incorrect.

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Step 3: Gather evidence to support your appeal. Collect comparable sales (properties similar to yours that sold within the past 12 months), photographs showing property condition issues, repair estimates for defects, and your property's assessment history. A professional appraisal provides strong evidence but is not required.

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Step 4: Attend your Board of Review hearing. The Board operates as a quasi-judicial body where you present evidence under oath. Expect 5-15 minutes to present your case. The assessor will also present evidence supporting the current assessment. Board members may ask questions of both parties.

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Step 5: Receive the Board's written decision within 15 days. If you disagree with the Board of Review decision, you can appeal to the Wisconsin Department of Revenue within 90 days or file an action for certiorari in Dane County Circuit Court within 90 days (requires appearance before Board of Review first).

Required form: Form PA-115A (Objection to Real or Personal Property Assessment) or written letter of objection

Filing Methods

online:City of Madison only: Contact assessor's office at (608) 266-4531 or assessor@cityofmadison.com for online filing information
mail:Submit to your municipal clerk's office. For unincorporated Dane County: Dane County Property Lister, 210 Martin Luther King Jr. Blvd, City County Building Room 114, Madison, WI 53703
in-person:File with municipal clerk or assessor's office during business hours, must be at least 48 hours before the Board of Review meeting
email:Contact your municipal clerk to confirm if email filing is accepted; requirements vary by municipality

Evidence to Bring

Comparable sales (3-5 similar properties sold within past 6-12 months)Professional appraisal report (optional but persuasive)Photographs documenting property condition, defects, or damageRepair estimates or inspection reports for structural issuesAssessment history showing disproportionate increasesEvidence of assessment errors (incorrect square footage, room count, lot size)

Dane County Assessor Contact

Dane County Property Lister

Phone: (608) 266-4266

Address: 210 Martin Luther King Jr. Blvd, City County Building Room 114, Madison, WI 53703

Website: https://www.danecountyplanning.com/Land-Records/Property-Listing-and-Assessments

Online Portal: https://accessdane.countyofdane.com/

Hours: Monday-Friday 8:00 AM - 4:00 PM

Tax Exemptions in Dane County

Homestead Credit (State Income Tax Credit)

Up to $1,168 for tax year 2025 (filed in 2026)

A refundable state income tax credit for homeowners and renters with low household income. Reduces property tax burden through the state income tax system rather than directly reducing the assessed value.

Eligibility: Wisconsin residents with household income under $24,680 who own and occupy their primary residence as of January 1. Must file Schedule H or H-EZ with Wisconsin income tax return.Deadline: April 15, 2027 for 2025 tax year (filed with 2026 income tax return). Can file up to 4 years retroactively.

Lottery and Gaming Credit

$150 to $350 per parcel (varies by school district equalized value)

A direct property tax credit funded by state lottery and bingo revenue, automatically applied to owner-occupied primary residences. Appears as a line-item reduction on your December property tax bill.

Eligibility: Owner-occupied primary residences only. Not available for rental properties, vacant land, or businesses. Applied automatically if property is coded as homestead.Deadline: October 1 preceding the tax year (file with municipal treasurer only if not automatically applied)

School Levy Tax Credit

Varies by school district; typically $200-$400 annually

State-funded credit that reduces the school portion of property taxes. Applied automatically to all taxable property, not just homesteads.

Eligibility: All taxable property owners. Applied automatically to tax bills.Deadline: No application required, automatically applied

Veterans and Surviving Spouses Property Tax Credit

100% of property taxes paid on primary residence (full refund via state income tax return)

A refundable state income tax credit equal to 100% of property taxes paid on a qualifying veteran's or unremarried surviving spouse's primary residence and up to one acre of land. One of the most generous veteran property tax benefits in the nation.

Eligibility: Veterans with 100% service-connected disability rating or unemployability status from VA, who entered active duty as Wisconsin resident or lived in Wisconsin for 5 consecutive years after service. Unremarried surviving spouses of qualifying veterans also eligible.Deadline: File with Wisconsin income tax return by April 15 of following year. Must obtain WDVA certification before first claim.

First Dollar Credit

Varies by municipality; typically $50-$150 annually

State-funded credit that provides property tax relief, applied automatically to most residential properties.

Eligibility: Owner-occupied and rental residential properties. Applied automatically.Deadline: No application required, automatically applied

Dane County Appeal Packet · $49

Comparable sales evidence, county-specific filing guide, and professional cover letter. Enter your address to get started.

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Frequently Asked Questions

What is the deadline to appeal my property taxes in Dane County for 2026?
The deadline to appeal your property assessment in Dane County is set by your municipality, with Madison objections due by 4:30pm on May 15, 2026 (confirm your own municipality with its clerk). In Madison, the deadline is May 15, 2026 at 4:30 PM. Wisconsin law requires you to file a written or oral objection with your municipal clerk at least 48 hours before the first Board of Review meeting. This is one of the strictest appeal deadlines in the nation, missing it means you must wait until 2027 to appeal. Check your assessment notice for your municipality's specific Board of Review dates, as they typically occur between mid-May and late May.
How much can I save by appealing my property taxes in Dane County?
The savings from a successful property tax appeal in Dane County depends on how much your assessment is reduced and the local tax rate. With Dane County's effective tax rate of 1.71% to 1.80%, every $10,000 reduction in assessed value saves approximately $171 to $180 per year in property taxes. For example, if you successfully appeal a $400,000 assessment down to $370,000 (a $30,000 reduction), you would save approximately $513 to $540 annually. Over a typical 5-year period before the next reassessment, this totals $2,565 to $2,700 in savings. Given that Dane County has the highest median property tax bill in Wisconsin at $6,276 annually, even a modest assessment reduction can provide meaningful relief.
What evidence do I need to win a property tax appeal in Dane County?
To win a property tax appeal in Dane County, you need evidence proving your home's market value is lower than the assessed value. The most persuasive evidence includes 3-5 comparable sales of similar properties in your area that sold within the past 6-12 months for less than your assessment. A professional appraisal is highly persuasive but not required. Additional strong evidence includes photographs documenting property condition issues, repair estimates for structural defects, evidence of assessment errors (incorrect square footage, room count, or lot size), and your property's assessment history showing disproportionate increases. The Board of Review operates like a court and makes decisions based solely on evidence presented under oath, so organize your materials clearly and be prepared to answer questions.
What happens at a Board of Review hearing in Dane County?
A Board of Review hearing in Dane County is a formal, quasi-judicial proceeding where you present your evidence under oath to a panel of appointed board members. You typically have 5-15 minutes to explain why your assessment is incorrect, present your comparable sales data, photographs, or appraisal, and answer questions from board members. The municipal assessor will also present evidence defending the current assessment and may question your evidence. Both parties are under oath, and the board weighs all evidence to determine the correct assessment value. The hearing is open to the public, and you may bring a representative such as an attorney or property tax professional. The board issues a written decision within 15 days, which you can further appeal to the Wisconsin Department of Revenue or Circuit Court if unsatisfied.
How does Dane County's property tax rate compare to other Wisconsin counties?
Dane County has one of the highest property tax burdens in Wisconsin and ranks among the top counties nationally. The county's effective tax rate of 1.71% is significantly higher than the Wisconsin state median of 1.41% and the national median of 1.02%. Dane County's median annual property tax bill of $6,276 is the highest in Wisconsin, more than double the state average of approximately $3,081. This high tax burden reflects the county's substantial public services, excellent school districts, and high property values. Within Dane County, rates vary considerably by municipality and school district, with Madison residents facing effective rates as high as 3.62% in some neighborhoods, while other areas pay closer to 1.49%. These high rates make property tax appeals particularly valuable for Dane County homeowners.
When are Dane County property assessment notices mailed?
Dane County municipalities typically mail property assessment notices in spring, with most arriving between mid-March and early May each year. You will only receive an assessment notice if your property's value changed from the prior year. If you don't receive a notice, it means your assessment remained the same. The notice includes your property's assessed value as of January 1, an estimate of your property tax bill, and important dates for Open Book and Board of Review. Wisconsin law requires properties to be assessed annually at 100% of fair market value. The assessment notice also explains your appeal rights and deadlines, which are critical because you must file an objection at least 48 hours before the Board of Review meeting, typically held in May.
What is the homestead exemption worth in Dane County?
Wisconsin does not offer a traditional homestead exemption that reduces assessed value like many other states. Instead, Dane County homeowners can benefit from several property tax credits that together typically reduce annual tax bills by $300 to $600. The Lottery and Gaming Credit provides $150 to $350 automatically applied to owner-occupied homes. The School Levy Tax Credit and First Dollar Credit add another $200 to $400 combined. Low-income homeowners (under $24,680 household income) can claim the refundable Homestead Credit of up to $1,168 on their Wisconsin income tax return. Veterans with 100% service-connected disability receive a credit equal to 100% of their property taxes paid. These credits appear as line items on your December property tax bill or are claimed through your state income tax return, not by reducing the assessed value directly.
Can I appeal my Dane County property taxes online?
Online filing for property tax appeals in Dane County is limited and varies by municipality. The City of Madison allows some online communication with the assessor's office regarding objections, contact them at (608) 266-4531 or assessor@cityofmadison.com for details. However, most Dane County municipalities require you to file your objection (Form PA-115A) in person, by mail, or occasionally by email with your municipal clerk's office at least 48 hours before the Board of Review meeting. While you cannot fully complete the appeal process online, you can research your property information, view assessment history, and find comparable sales through the free Access Dane portal at https://accessdane.countyofdane.com/. After filing, some municipalities may conduct virtual or hybrid Board of Review hearings, but you must confirm this with your local clerk.

Official Resources

Dane County Property Lister & Assessments →

Official Dane County page for property assessment information, contact details, and resources for property owners.

Access Dane Property Search Portal →

Free online tool to search property records, view assessments, find comparable sales, and access parcel information throughout Dane County.

Wisconsin Department of Revenue - Property Tax Guide for Property Owners →

Official state guide explaining property assessment, the appeal process, Board of Review procedures, and property owner rights in Wisconsin.

Dane County Treasurer - Property Tax Payments →

Information on paying property taxes, due dates, payment options, and understanding your property tax bill in Dane County.

For state-wide appeal information including Wisconsin's assessment ratio and deadlines, see our Wisconsin Property Tax Appeal Guide →

Considering professional help with your appeal? Compare pricing, coverage, and pros/cons in our Best Property Tax Appeal Services (2026) or browse side-by-side service comparisons →

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Sources: https://www.ownwell.com/trends/wisconsin/dane-county | https://taxbycounty.com/wisconsin/dane-county | https://www.danecountyplanning.com/Land-Records/Property-Listing-and-Assessments | https://www.revenue.wi.gov/DOR%20Publications/pb060.pdf | https://honestcasa.com/taxes/wisconsin/dane-property-tax-guide | https://accessdane.countyofdane.com/ | https://propertytaxrates.org/exemptions/wisconsin/ | https://en.wikipedia.org/wiki/Dane_County,_Wisconsin

Last verified: 2026-07-24