FIPS: 55073 • Seat: Wausau

Marathon County Property Appraiser & Tax Assessor

Real property appraisal records, parcel search lookup, property tax rates, and assessment protest deadlines for Marathon County, Wisconsin.

Tax Rate 1.64% Effective Rate
Median Home $270k Census ACS Value
Annual Tax $4428 Estimated Median
Assessment Ratio 100% Statutory Level

Marathon County Assessor's Office Information

Physical Address

Marathon County Appraisal & Assessment Office, Wausau, WI 55001

Get Driving Directions ↗
Operating Hours

Monday - Friday: 8:00 AM - 4:30 PM (Local Time)

Closed on state & federal holidays.

Telephone / Contact

(608) 541-8363

Online Property Search Tool

AccessDane / Milwaukee Assessor / Ascent Land Records

Marathon County Property Tax Calculator

Estimated using Marathon County's effective tax rate of 1.64% (Assessment ratio: 100%)

$
Quick Presets:
* Estimates do not account for local municipal surcharges, special district levies (MUD / ISD), or individual homestead exemption deductions.
Estimated Annual Tax
$4428
per year
Monthly Escrow $369/mo
Assessed Value $270.000
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Appealing Your Marathon County Assessment

Statutory Protest Deadline:

Must attend Open Book first; file written objection with Board of Review at least 48 hours prior to first meeting.

Under Wisconsin property tax law, property owners in Marathon County have the legal right to challenge an assessed valuation that exceeds fair market value, is unequally appraised compared to neighboring properties, or contains clerical errors.

Step 1: Informal Review

Contact the Marathon County Assessor's Office to review your property record card, verify square footage, and present recent comparable sales (comps).

Step 2: Formal Hearing

If informal review does not resolve the valuation, file a written notice of appeal with the Municipal Board of Review (BOR) before the statutory deadline.

Save on Property Taxes

Was Your Marathon County Home Over-Assessed This Year?

Studies show up to 30% to 60% of US residential properties are overvalued by automated municipal algorithms. Protesting your assessment before the statutory deadline can lower your tax bill by an average of $1,100/year.

⏰ Key Deadline: Must attend Open Book first; file written objection with Board of Review at least 48 hours prior to first meeting.

Marathon County Homestead Exemptions & Tax Relief

Homeowners in Marathon County who occupy their home as their permanent primary residence may qualify for property tax reductions under state and local homestead programs:

General Homestead Exemption:

School Levy Tax Credit and First Dollar Credit automatically applied to tax bills for improved real property.

Seniors & Disabled Veterans:

Wisconsin Homestead Credit provides up to $1,168 for low-to-moderate income residents. Disabled Veterans Property Tax Credit refunds 100% of property taxes for eligible veterans.

Public Records & Deeds Official Recording Partner

Need Deed, Lien, or Title Records for Marathon County?

While the Property Appraiser values real estate for taxation, official legal property transfers, warranty deeds, mortgages, and marriage records in Marathon County are maintained by the County Clerk & Recorder.

Frequently Asked Questions

Where is the Marathon County Property Appraiser office located?

The official Marathon County property appraisal and tax assessment office is located at Marathon County Appraisal & Assessment Office, Wausau, WI 55001. Operating hours are typically Monday - Friday: 8:00 AM - 4:30 PM (Local Time). You can reach the customer service staff by phone at (608) 541-8363.

What is the property tax rate in Marathon County, WI?

The average effective property tax rate in Marathon County is approximately 1.64%. For a home with the median county market value of $270.000, the estimated annual property tax is about $4428 per year.

How do I search for a property or parcel in Marathon County?

You can look up property record cards, assessed valuations, ownership history, and parcel boundary maps online through the official Marathon County parcel search portal: https://marathoncounty.gov/assessor/parcel-search.

When is the deadline to appeal my property assessment in Marathon County?

Property valuation protests and appeals in Marathon County must be submitted by: Must attend Open Book first; file written objection with Board of Review at least 48 hours prior to first meeting. Appeals are formally reviewed and heard by the Municipal Board of Review (BOR).

How does the Homestead Exemption work in Marathon County?

School Levy Tax Credit and First Dollar Credit automatically applied to tax bills for improved real property. Additional exemptions are available for senior citizens (65+) and disabled military veterans (Wisconsin Homestead Credit provides up to $1,168 for low-to-moderate income residents. Disabled Veterans Property Tax Credit refunds 100% of property taxes for eligible veterans.).

Adjacent & Neighboring County Appraisers

County Overview

County Seat: Wausau
Population (2023): 138.612
Land Area: 1545 sq mi
Tax Assessor Ratio: 100%
State Agency: Wisconsin Dept of Revenue
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