The Washtenaw County Board of Commissioners met in Equalization session on April 19, 2023. Relevant documents can be found below.


To set equalized and taxable base values for the county, to create and maintain a graphic representation of legal descriptions for all real property located in the county, and to assist local units of government in matters concerning assessment and taxation administration as mandated by Michigan State Law.

Washtenaw County Building


The Equalization Department's main function is to assure that all property across the county's local units of government is assessed fairly and equitably.  This is accomplished by a staff of appraisers that  annually conducts studies of all classes of property.  The department also performs complete re-appraisals of every parcel in a unit of government when requested by that unit.  Washtenaw Equalization currently acts as the assessor for Freedom and Saline Townships.

The Property Description section maintains current property line maps for the entire county.  Copies of these maps are available for a fee to the public, and can be accessed interactively online using MapWashtenaw.  The department is responsible for assigning tax identification numbers to newly split or combined parcels, new subdivisions and condominiums, except for those within the City of Ann Arbor, Ypsilanti Township, and Scio Township.

Additional information available to the public includes assessments rolls for current and previous years, sales ratio studies, equalization reports, millage rates, and surveys.  Please note that customer requests for large format map prints should now be directed to the MapStore, available via the "Geographic Information Systems" link to the left.

More Information

Current Equalization Reports