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The St. Charles County Assessor plans to mail approximately 34,640 personal property assessment declaration forms by March 19 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, according to a press release.

Residents who do not file a form each year find themselves at the Assessor’s Office during the end-of-the-year rush, mainly for three reasons:

  • New residents are not familiar with the personal property declaration requirement.
  • Current residents do not complete and return the declaration form to the Assessor.
  • Residents experience difficulties renewing vehicle licenses.

By declaring their personal property, residents can avoid problems at the end of the year when they realize they have not received a personal property bill. Forms filed by May 1 also provide the opportunity to appeal the value if necessary.

Scott Shipman St. Charles County assessor, said accurate completion of the form ensure a fair and equitable distribution of the tax burden for residents. 

Individual personal property owners can opt to file online. Printed on the personal property assessment declaration form is an E-filing website and unique secure code for individual personal property owners to access their accounts.

The E-filing website link is also featured on the homepages of the county website,, and the Assessor’s website,

When filing online, taxpayers receive automatic confirmation that their form was received. Residents can also verify receipt on the Assessor’s website under Personal Property, Assessment Form Confirmation by entering in their address information into the office’s database.

Contact the Personal Property Department at 636-949-7420 or 1-800-822-4012, ext. 7420. The Assessor’s website also includes both individual and business personal property forms.