1. Collector of Revenue

    The St. Charles County Collector’s Office is committed to providing efficient tax payment (collection and disbursement) operations and to providing exceptional customer service to the taxpayers by promptly and professionally waiting on them at the windows, pleasantly and patiently answering telephone inquiries, and courteously and creatively handling problems.

  2. Personal Property Assessment Form (PDF)

    Complete the Business and Aircraft Personal Property Assessment Form.

  3. Missouri Department of Revenue

    The Missouri Department of Revenue administers Missouri's business tax laws, and collects sales and use tax, employer withholding, motor fuel tax, cigarette tax, financial institutions tax, corporation income tax, and corporation franchise tax.

  4. St. Charles County Registrar

    The St. Charles County Registrar is responsible for keeping track of tax rates levied by all of the county’s political subdivisions.

  5. Assessment Exemption

    Complete the online tax exemption application.

  6. Sleeping Room Taxes

    Learn more about this tax.