Rate Breakdown

Property taxes in Jefferson County are calculated by multiplying the assessed value (minus exemptions) by the total local millage rate.

How Property Tax Works in Jefferson County

Property taxes in Jefferson County are based on the assessed value of your real estate, which is a percentage of the property's fair market value. In Missouri, the assessment rate for residential property is typically 19% of the market value. The county assessor determines the market value based on recent sales of comparable properties and physical characteristics of the home.

Once the assessed value is established, the total tax bill is calculated by applying the combined millage rates of local taxing districts. A "mill" represents one dollar of tax for every $1,000 of assessed value. Your final tax amount is the sum of rates set by the county, city, school districts, and special taxing districts (such as fire or road districts).

Available Exemptions

Missouri offers several tax relief programs to reduce the financial burden on eligible homeowners. Applying for these exemptions can significantly lower your annual property tax liability:

• Homestead Exemption: Available to low-income seniors and disabled individuals, providing a reduction in the assessed value of the primary residence.
• Senior Citizen Tax Relief: Specific credits may be available for residents aged 65 and older who meet income requirements.
• Disability Exemptions: Individuals with permanent disabilities may qualify for property tax freezes or reductions.
• Veteran Exemptions: Missouri provides specific tax relief and exemptions for 100% disabled veterans and their surviving spouses.

Payment Schedule & Deadlines

Property taxes in Jefferson County are generally billed annually, though they may be paid in installments depending on your escrow arrangement. Tax bills are typically mailed in the fall, and payments are due by December 31st of each year.

It is critical to adhere to these deadlines to avoid penalties. Late payments typically incur interest charges and may lead to the accrual of delinquent tax penalties. If taxes remain unpaid for an extended period, the county may initiate a tax sale to recover the owed funds. Homeowners are encouraged to verify if their mortgage lender handles these payments through an escrow account to ensure timely delivery.

Appealing Your Assessment

If you believe your property has been overvalued by the Jefferson County Assessor, you have the right to appeal. The process generally begins with filing a formal application for review during the designated appeal window—usually shortly after the assessment notice is mailed.

To build a strong case, homeowners should gather evidence such as recent appraisals, photos of property defects, or a list of comparable homes in the neighborhood that sold for less than the assessed value. Appeals are typically heard by a Board of Assessment Appeals, which will determine if a value adjustment is warranted based on the evidence provided.