Jefferson County Seal
Jefferson County,
Est. 1818
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Jefferson County Assessor


Welcome to the Jefferson County Assessor's Website Home Page. This site is maintained by the Department of the County Assessor and intended to help answer questions regarding property tax assessment and provide information about our available services. The links shown on this page will give you information for real estate and personal property, available on-line forms and the Missouri Property Tax Credit Program for senior citizens.







About the Assessor's Office


Terry L. Roesch, Jefferson County Assessor, is a Licensed State Certified General Real Estate Appraiser and carries a Missouri State Assessors Association Level III Designation. Before assuming his present position in December of 2010 Terry worked in the Jefferson County Assessor’s Office for twenty-one years as a business personal property appraiser, commercial real estate and residential real estate appraiser and residential real estate and commercial real estate department supervisor. Terry is a member of the International Association of Assessing Officers (IAAO).


The Assessor and his staff are responsible for the valuation of all the property within the 628 square miles that comprise Jefferson County. There are over 110,000 parcels of real estate property and over 100,000 personal property accounts representing the entirety of the taxable property within Jefferson County. The Assessor's Office has the responsibility to inventory and value all of the taxable property in Jefferson County. This includes real estate and personal property of all individuals and businesses. The total assessed value of real and personal property in Jefferson County in 2013 was $3,002,733,675.


In performing the assessment of Jefferson County, information is collected and documented to determine property values. Property assessment requires detailed data on each property in order to arrive at an accurate identification and inventory of the real estate and personal property within our county. Our mission is to arrive at fair and equitable values as a basis for determining property taxes. The assessed value, as determined by the Assessor's Office, is a percentage of the market value of the real or personal property. The assessment percentages are set by state statute and determined by the classification of the property. The assessed property value is only one part of the formula in determining property taxes.


The other factor is the voter approved tax levy. These levies vary by taxing entity and jurisdiction. Our office is also a valuable resource to realtors, appraisers, title companies, surveyors, attorneys, citizens and all other persons interested in property information. State and local laws require the entire county undergo a valuation review or reassessment every odd numbered year. This means the information is relatively current and regularly updated.


The Department of the County Assessor is comprised of trained, competent, and experienced personnel. State statute exempts assessors' office personnel from the licensing requirements that fee appraisers must meet to practice appraisal. However, Mr. Roesch has implemented an initiative where he and most of the appraisal staff are Missouri State licensed real estate appraisers.


Terry L. Roesch