Assessor

E-File Your 2024 Personal Property Assessment

E-File for 2024 Button

Use your account number and access code located on your assessment form and follow the prompts. Assessments are due March 1.

NOTE: If you do not receive a form by mid-February, please contact Personal Property at 636-949-7420 or by email.

Want to know where to find your Account Number and Access Code? See the image below:

2024 assessment efile graphic

Get in Line with QLess

Avoid crowds and save time with real-time status updates. Visitors to the Assessor’s Office can join a virtual queue from their mobile device or computer using the free QLess app, or by checking in at the kiosk in the Administration Building lobby. QLess is available for Personal Property and Real Estate services.

Additional News

Assessor Dashboard

This interactive dashboard provides a summary analysis of assessment and local economic data.

Responsibilities

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 taxes are based on property value. 

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

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.

Certificate of Non-Assessment (Tax Waiver)

A Certificate of Non-Assessment, also known as a tax waiver, may be obtained at the Assessor's Office if you did not own a vehicle in St. Charles County on January 1. The Certificate is required by the Missouri Department of Revenue to license motor vehicles or obtain a business license in St. Charles County. Learn more about requirements for the Certificate of Non-Assessment.

Resources

Tax Bills

Your tax bill is comprised of three 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 of Revenue’s Office) is responsible for collecting the amount of tax assigned to each property owner.