The Assessor in Cass County, Iowa has the primary duty and responsibility to cause to be assessed all real property within their jurisdiction.


  Cass County - Assessor

Duties of the Assessor:
The Assessor is charged with several administrative and statutory duties. The primary duty and responsibility is to assess all real property within the Assessor's jurisdiction except that which is otherwise provided by law. This would include residential, multi-residential, commercial, industrial, and agricultural classes of property.

Real property is revalued every two years. The effective date of the assessment is January first of each year. The Assessor determines a full or partial value for all new construction and improvements depending upon their state of completion as of that January first date

The Assessor is concerned with value, not taxes. Taxing jurisdictions such as schools, cities and county, adopt budgets after public hearings. This determines the tax levy, which is the rate of taxation required to raise the money budgeted.

The taxes you pay are proportional to the value of your property compared to the total value of property in your taxing district.

The Assessor DOES NOT:
Collect taxes
Calculate taxes
Determine tax rate
Set policy for the Board of Review

About the Assessor:
Assessors are appointed to their position by a Conference Board consisting of the members of the Board of Supervisors, the Mayors of all the incorporated cities, and a member of each school district within the jurisdiction. A city with a population of 10,000 or more may elect to have their own assessor.
In cities having an assessor the conference board shall consist of the members of the city council, school board and county board of supervisors.
Assessors are required by law to pass a state examination and complete a continuing education program consisting of 150 hours of formal classroom instruction with 90 hours tested and a passing grade of 70% attained. The latter requirement must be met in order for the Assessor to be reappointed to the position every six years.
The Conference Board approves the Assessor's budget and after a public hearing acts on adoption of the same.
 The Assessor is limited, by statute, depending upon the value of the jurisdiction, to a levy limitation for the budget.

Click on the following links to learn more about the office of the assessor:

Market Value, Tax Levies and Assessed Values

Property Assessment & Tax Flow Chart

Cass County Assessor's Office

Cass County Courthouse
5 West 7th Street
Atlantic, IA 50022

Office Hours:
Monday - Friday
7am - 4:30pm
Subject to Cass County Holidays

Phone Number:

FAX Number:

County Assessor:
Brenda Nelson

Employees in
Assessor's Office:
Patti Bissell
Marie Parrott
Mike Onnen

Assessor's Forms:
Downloadable forms
used in the Assessors office

Assessor's Links:

Vanguard Appraisals


Iowa State Association of Assessors

Iowa State Association of Counties (ISAC)

Iowa General Assembly Bills and Amendments

The Iowa General Assembly: Iowa Law

Iowa Administrative Code

Iowa Department of Revenue

IAAO: International Association of Assessing Officers

Other Links:
Iowa State County Treasurer's Association

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