Rate Breakdown

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

How Property Tax Works in Cass County

In Cass County, Illinois, property taxes are assessed annually by the County Assessor’s Office. The goal is to determine the fair market value of each parcel based on comparable sales, rental income, and other relevant factors. Appraisers visit or review the current market data to arrive at a property’s assessed value. Once the value is finalized, the county multiplies it by the applicable millage rate to calculate the tax owed.

The millage rate is expressed in mills—thousandths of a dollar per dollar of assessed value. Cass County’s total millage rate is a combination of the county rate, township rates, and any special districts (for schools, libraries, or roads). For example, if the combined millage rate is 2.50 mills, a parcel assessed at $50,000 would owe:

• Tax = ($50,000 × 2.50) ÷ 1,000 = $125.00

In addition to the base rate, certain exemptions reduce the taxable value, which is covered in the following section.

Available Exemptions

Illinois offers several property exemptions that Cass County residents can apply for:

• Homestead Exemption: Mothers, fathers, and single parents can apply for a $4,800 exemption and an additional $400 for each child. Veterans and disabled veterans receive a default exemption of $11,800, which can be increased by $4,000 if they are disabled.
• Senior Citizen Exemption: Eligible seniors (65+) may claim a $2,400 exemption. The exemption is automatically applied if the property is owned by a qualifying senior.
• Disability Exemption: Individuals with a documented physical or mental disability can claim a $4,000 exemption. If they are a veteran, the exemption may be combined with the veteran’s exemption.
• Veteran Exemption: Veterans may receive an exemption ranging from $11,800 to $15,800 based on disability status. The value is usually applied automatically once the veteran’s status is verified.

Applicants must file the relevant exemptions annually with the Assessor’s Office. Proof of eligibility (e.g., birth certificate, disability documentation, military discharge papers) should accompany the application to expedite approval.

Payment Schedule & Deadlines

Cass County offers a two‑installment payment plan:

• First Installment: Due by the last day of July each year. This installment covers half of the assessed tax.
• Second Installment: Due by the last day of December. The remaining half is due on this date.

Payments can be made in person, online via the county portal, or mailed to the Assessor’s Office. If you fail to pay by the due date, a 2% monthly penalty applies to the overdue amount. After six months, the penalty increases to 12%, and the tax becomes delinquent, triggering collection actions such as liens or tax sales. To avoid penalties, consider setting up automatic payments or planning your budget around the July and December deadlines.

Appealing Your Assessment

If you believe your property’s assessed value is incorrect, you can file an appeal with the Cass County Assessment Appeals Panel. The appeal process involves the following steps:

• File a written request: Submit your appeal within 60 days of the assessment notice. Include supporting documentation such as recent sales data, professional appraisals, or photographs.
• Schedule a hearing: The panel will set a date to review your case. You may attend or submit a written statement.
• Decision: After reviewing evidence, the panel may uphold, increase, or revise the assessed value. The decision is final and binding.

For specific forms, filing deadlines, and additional guidance, visit the Cass County Assessor’s website or call the office directly. Being proactive and organized will help your appeal succeed and reduce your property tax burden.