Sioux City Assessor

Residents Urged to Limit In-Person Visits to the City Assessor's Office Amid COVID-19 Concerns

The Sioux City Assessors Office, in response to the COVID-19 virus and the safety of both the general public and our staff, has made applications available online for the following credits/exemptions: Disabled Veteran Homestead Tax Credit, Homestead Tax Credit, Military Exemption & Nonprofit & Charitable Organization Tax Exemption.

Please fill out the form and mail to our office. Our office will contact you to let you know we received the form and to ask any questions we may have about the information. We are all faced with a new challenge with this virus, and we will do our best to serve the public while performing our job.  Please click on the Exemption/Credit Forms tab under Additional Information to access these forms.



The Assessor is charged with several administrative and statutory duties; however, the primary duty and responsibility is to cause to be assessed all real property within his jurisdiction except that which is otherwise provided by law. This would include residential, commercial, industrial and agricultural classes of property. Real property is revalued every two years. The effective date of the assessment is January 1 of the current year. The assessor determines a full or partial value of new construction, or improvements depending upon the state of completion as of January 1.

Misconceptions About the Assessor's Role

The Assessor does not:

- Collect taxes
- Calculate taxes
- Determine tax rate
- Set policy for the Board of Review

The Assessor is concerned with value, not taxes.

Taxing jurisdictions such as schools, cities and townships, 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.


Download this file (UnderstandingYourAssessment.pdf)UnderstandingYourAssessment.pdf[ ]60 kB