Waukesha County, Wisconsin Tax Assessors' Office

Where is the Waukesha County Tax Assessor's Office?

While many counties have county-wide tax assessors, Waukesha County has one cities and towns with their own local tax assessors. If your property is located within any of these localities, see that page for your tax assessor's contact information.

What can the Waukesha County Assessor's Office do for me?

The Waukesha County Tax Assessor's Office oversees the appraisal and assessment of properties as well as the billing and collection of property taxes for all taxable real estate located in Waukesha County.

Contact the assessor's office if you need help with paying your property taxes, applying for a homestead exemption or other tax exemption, reporting upgrades to your home, appealing your property tax assessment, or verifying your property records.

Submitting a Waukesha County property tax appeal

If you believe that your house has been unfairly overappraised (i.e. appraised at a value higher than the true market value of the property), you can attempt to get your home re-appraised at a lower value by contacting the Assessor's Office to submit a property tax appeal.

You will have to submit a form describing your property and sufficient proof that it is overassessed, including valuations of similar homes nearby as evidence. If your appeal is accepted, your home assessment (and property taxes) will be lowered as a result.

If you would like to appeal your property, call the Waukesha County Assessor's Office at (262) 548 7029 and ask for a property tax appeal form. Keep in mind that property tax appeals are generally only accepted in a 1-3 month window each year.

For more information and example appeals, see how to appeal your property taxes.

How can I contact Waukesha County?

You can try contacting the Waukesha County local government directly with any issues the Assessor's Office can't solve. In many counties, certain property records such as deeds are kept in the county courthouse or county archives instead of at the tax assessors' office.

The county seat for Waukesha County is located in the County Courthouse in Waukesha, which is located at 1320 Pewaukee Rd. You can direct your general inquiries to Waukesha County with the contact info listed below.

Waukesha County Phone Number

262-548-7010

Waukesha County Fax Number

262-548-7005

Waukesha County County Courthouse Address

County Courthouse
1320 Pewaukee Rd
Waukesha, WI 53188-3878

Useful Waukesha County Links:

• City of Waukesha - Property Sale Search
• Property Tax Search Tool & GIS Map
• Waukesha County Search by range
• City of Waukesha - Property Tax Search
• Waukesha County Government Homepage
• Waukesha County Tax Records
• City of Waukesha - Property Tax Payment
• Waukesha County Assessors' Office Homepage