2016 Personal Property Assessment 

Update 3.1.16 - The Assessor will mail approximately 46,000 personal property assessment forms by March 18 to taxpayers who failed to respond to the initial January mailing. Forms were due by March 1. Late filing penalties will be applied on May 1 - view our latest news

Visit our Personal Property Assessment Confirmation Database to confirm receipt of your form.

New Agricultural Productivity Values (as of 1.1.15)
View the new values for agricultural/horticultural land

The Assessor is charged with placing a fair market value on property as of the tax date. The property tax in Missouri is “ad valorem” meaning the taxes are based on the property value.

The Assessor has no jurisdiction or responsibility for taxing jurisdiction budgets or establishing the tax rate.

Please note: Information maintained by this office is for Assessment purposes only and should not be used to verify or transfer ownership. All maps maintained, provided and/or purchased are based on Assessment information and do not represent a legal survey of the parcels shown and shall not be used for conveyance or the establishment of property boundaries.

Please watch the video below to learn more about the Assessor's office, processes, and responsibilities.


Tax Bills
Your tax bill is comprised of 3 key components:
  • Assessment Authority
  • Taxing Authority
  • Collection Authority
Assessment Authority
The assessment authority (Assessor’s Office) is responsible for establishing the fair market value of all property within St. Charles County as of the tax date. This assures the tax burden is distributed fairly among those responsible for payment.

Taxing Authority
The taxing authority (school, city, fire districts, etc.) establishes the tax rate based on the budgetary requirements needed to appropriately fund the services provided within their jurisdiction.

Collection Authority
The collection authority (Collector’s Office) is responsible for collecting the amount of tax assigned to each property owner.