Missouri Assessor Office

Find Missouri assessor, assessment, auditor's, and appraiser's offices, revenue commissions, GIS, and tax equalization departments. Assessors provide information on property and land tax assessment, property listings, values, valuations, property search, and records.


Assessor Offices by County

Adair County Andrew County Atchison County Audrain County Barry County Barton County Bates County Benton County Bollinger County Boone County Buchanan County Butler County Caldwell County Callaway County Camden County Cape Girardeau County Carroll County Carter County Cass County Cedar County Chariton County Christian County Clark County Clay County Clinton County Cole County Cooper County Crawford County Dade County Dallas County Daviess County DeKalb County Dent County Douglas County Dunklin County Franklin County Gasconade County Gentry County Greene County Grundy County Harrison County Henry County Hickory County Holt County Howard County Howell County Iron County Jackson County Jasper County Jefferson County Johnson County Knox County Laclede County Lafayette County Lawrence County Lewis County Lincoln County Linn County Livingston County Macon County Madison County Maries County Marion County McDonald County Mercer County Miller County Mississippi County Moniteau County Monroe County Montgomery County Morgan County New Madrid County Newton County Nodaway County Oregon County Osage County Ozark County Pemiscot County Perry County Pettis County Phelps County Pike County Platte County Polk County Pulaski County Putnam County Ralls County Randolph County Ray County Reynolds County Ripley County Saline County Schuyler County Scotland County Scott County Shannon County Shelby County St. Charles County St. Clair County St. Francois County St. Louis County St. Louis Ste. Genevieve County Stoddard County Stone County Sullivan County Taney County Texas County Vernon County Warren County Washington County Wayne County Webster County Worth County Wright County

About Assessor Offices

What is an Assessor?

The Assessor serves a county or local government by determining the value of all taxable property in the jurisdiction. Taxable property typically includes land and buildings, often referred to as real property, and the fixed assets owned by businesses, often referred to as personal property. In some states, motor vehicles may also be subject to property taxes. The property values determined by the Assessor are used to assess the property taxes owed by individual taxpayers. Accurate property value assessments help ensure fairness in the property tax system.

The Assessor maintains records on the physical characteristics for all the real property in a jurisdiction, including building size, land area, location, and building type. In order to make adjustments to property valuations, the Assessor tracks real estate market conditions and sales data. The Assessor also works closely with building and licensing officials to monitor changes to the property list because of new construction, building expansions, or demolitions. Depending on the state and locality, some real property is exempt from property taxes. Property owned by non-profit organizations, churches, or state agencies may be exempt, and the assessor must keep track of these properties as well.

At set intervals, assessors revalue all the real property in a jurisdiction. These revaluations may take place annually or less frequently depending on the rules for the particular jurisdiction. In addition to updating real property values based on changes in market conditions, the revaluation process helps to identify previously unrecorded additions or deletions to the property list, as well as abandoned properties.

Personal property owned by businesses is often self-reported on established forms or declarations used by the Assessor's Office. Assessors may also perform site inspections, review property transfer documents and bills of sale, or search public documents in order to identify taxable personal property.