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

  Jackson County, Iowa - Assessor


Property assessments,
Property exemptions,
Keeps descriptions of buildings & property characteristics,
Analyzes trends in sale prices & construction costs.

What are the Assessor's Duties?
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 their 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 1st 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 1st.

General Misconceptions About the Assessor's Work
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 proportionate to the value of your property compared to the total value of the taxing district in which your property is located.

General Information About the Assessor
Assessors are appointed to their positions by a Conference Board consisting of the members of the Board of Supervisors, the Mayors of all incorporated cities and a member from each school district within the jurisdiction. A city with a population of ten thousand or more may elect to have their own assessor. Assessors are required, by statute, 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 Deputy Assessor also must pass a state examination as well as successfully complete 90 hours of classroom instruction of which at least 60 hours are tested. The Conference Board approves the assessor's budget and after a public hearing acts on adoption of same. The assessor is limited, by statute, depending upon the value of the jurisdiction, to a levy limitation for his budget.

What is Market Value?
Market value of a property is an estimate of the price that it would sell for on the open market on January 1st of the year of assessment. This is sometimes referred to as the "arms length transaction" or "willing buyer/willing seller" concept.

How does the Assessor Estimate Market Value?
To estimate the market value of your property, the Assessor generally uses three approaches. The first approach is to find properties that are comparable to yours which have sold recently. Local conditions peculiar to your property are taken into consideration. The assessor also uses sales ratio studies to determine the general level of assessment in a community, in order to adjust for local conditions. This method is generally referred to as the MARKET APPROACH and usually considered the most important in determining the value of residential property. The second approach is the COST APPROACH and is an estimate of how many dollars at current labor and material prices it would take to replace your property with one similar to it. In the event improvement is not new appropriate amounts for depreciation and obsolescence would be deducted from replacement value. Value of the land then would be added to arrive to the total estimate of value. The INCOME APPROACH is the third method used if your property produces income such as an apartment of office building. In that case, your property could be valued according to its ability to produce income under prudent management; in other words, what another investor would give for a property in order to gain its income. The income approach is the most complex of the three approaches because of the research, information and analysis, necessary for an accurate estimate of value. This method requires thorough knowledge of local and national financial conditions, as well as any developmental trends in the area of the subject properly being appraised since errors or inaccurate information can seriously affect the final estimate of value.

Why Values Change?
State law requires that all real property be reassessed every two years. The current law requires the reassessment to occur in odd numbered years. Changes in market value as indicated by research, sales ratio studies and analysis of local conditions as well as economic trends both in and outside the construction industry are used in determining your assessment.

If you disagree with the assessor's estimate of value, please consider these two questions before proceeding, as outlined below:

What is the actual market value of my property?
How does the value compare to the similar properties in the neighborhood?
   If you have any questions about the assessment of your property, feel free to come in and discuss it with the assessor.
   You may file a written protest with the Board of Review, which is composed of three or five members from various areas of the assessing jurisdiction. The Board operates independently of the assessor's office, and has the power to confirm or to adjust either upward or downward any assessment.
   If you are not satisfied with the decision of the Board of Review you may appeal to the property assessment appeal board or to the district court within twenty days after adjournment of said Board, or twenty days after May 31st whichever is latest.

Tax Levies and Assessed Values
There are a number of different taxing districts in a jurisdiction, each with a different levy. Each year the County Auditor determines for that district a levy that will yield enough money to pay for schools, police and fire protection, road maintenance and other services budgeted for in that area. The tax levy is applied to each $1,000 of a properties taxable value. The value determined by the assessor is the assessed value and is the value indicated on the assessment roll. The taxable value is the value determined by the auditor after application of state ordered "rollback" percentages for the various classes of property.

Exemptions and Credits
Iowa law provides for a number of exemptions and credits, including Homestead Credit and Military Exemption. It is the property owner's responsibility to apply for these as provided by law. If the property you were occupying as a homestead is sold, or if you cease to use the property as a homestead you are required to report this to the assessor in whose jurisdiction the property is located.

Dates to Remember
January 1 - Effective date of current assessment.
April 2 through April 30 inclusive - Protest of assessment period for filing with the local Board of Review.
May 1 through adjournment - Board of Review meets each year.
October 10 through November 15 inclusive - Protest period for filing with Board of Review on those properties affected by changes in value as a result of the Director of Revenue and Finance Equalization Orders (odd numbered years).
January 1 through December 31 - Period for filing for Homestead Credit and Military Exemption. One time filing is provided, by statute, unless the property owner is (1) filing for a Military or Homestead Credit the first time; (2) has purchased a new or used home and is occupying the property as a homestead as of July 1st: or (3) owner was using as a homestead but did not previously file.

If the home qualifies and the property owner files on or before July 1, the exemption will go into effect for the current assessment year. If the property owner files after July 1, the exemption will go into effect the year following the sign up.

Filing is required on the following, if provisions have been made for exemptions as required:

Native Prairies -Wetlands
Open Prairies +Urban Revitalization

River and Stream Banks
Impoundment Structures

Disabled Veterans Homestead Credit
Family Farm Credit -Recreational Lake
Forest Reservations
Pollution Control
Fruit Tree Reservations - 8 years -Forest Cover
Wildlife Habitat
Industrial Partial 427B

Things to Remember
Assessed value and taxable value are not synonymous terms.
Property is assessed as of January 1st.
Property is reassessed every two years.
Taxes are levied on a value determined by the auditor by applying a "roll back" percentage to the assessed value and deducting any applicable exemptions or credits. The "roll back" percentages vary each year.
On values determined as of January 1st, one does not start to pay taxes until eighteen months later. The "roll back" is the percentage of actual value that is determined by the Director of Revenue and Finance each year on the several classes of property where the total value increase STATEWIDE, exceeds three percent for each class of property. The percentages so determined by the Director of Revenue and Finance are certified to and applied by the local county auditor to all property in each class effected throughout the State. Percentages determined by the Director of Revenues and Finance are the same for all the assessing jurisdictions in the State.

Increases in assessed value of individual parcels of property as determined by the assessor, may exceed four percent within a jurisdiction. Agricultural property, except agricultural dwellings, are assessed on the basis of productivity and net earning capacity using a five year crop average and capitalized at the rate set by the Legislature. The rate is currently seven percent. Tentative and final equalization orders are issued by the Director of Revenue and Finance in odd numbered years on or about August 15th, and October 1st respectively. The orders are sent to the various county auditors who apply them to the classes of property affected, if any.

Assessors and members of the Board of Review are appointed to their terms of office. Assessors, in addition to completing the required 150 hours of Continuing Education, must be approved by a majority vote of the Conference Board in order to be reappointed.

If you desire further information, questions concerning PROPERTY VALUES or other information relating thereto should be addressed to the assessor's office in the respective jurisdiction and not the Board of Supervisors or Treasurer. The assessors of Iowa hope that the information contained herein will be of value to the property owner and has clarified some of these problems and issues relating to assessment and the applicable laws.

This information was prepared by the Public Relations Committee of the Iowa State Association of Assessors.

Tax Credits and Exemptions
Iowa law provides for a number of credits and exemptions. It is the property owner's responsibility to apply for these as provided by law. It is also the property owner's responsibility to report to the Assessor when they are no longer eligible for any credit or exemption they have applied for. Following is a list of several credits and exemptions available in Iowa.

Homestead Tax Credit
To qualify for the credit, the property owner must be a resident of Iowa and occupy the property on July 1 and for at least six months of every year. New applications for homestead tax credit are to be filed with the Assessor on or before July 1 of the year the credit is first claimed. Once a person qualifies, the credit continues until the property is sold or until the owner no longer qualifies. This credit reduces the value on which taxes are calculated by a maximum of $4,850. (refer to code of Iowa, Chapter 425)

Military Tax Exemption
To file for the exemption, the property owner must be a resident of Iowa and meet one of the following qualifications;
• Honorably discharged veteran who served in eligible service period.
• Honorably discharged veteran who served for a minimum of 18 months, or for fewer than 18 months because of a service related injury.
• Former member, or member who is currently serving, of Reserve Forces or Iowa National Guard who has served at least 20 years.
• Member of Reserve Forces or Iowa National Guard who was activated for Federal duty, not including training for a minimum or 90 days.
• Former member of the Armed Forces whose enlistment would have occurred during the Korean Conflict but chose to serve 5 years in the Reserve Forces.

New applications must be made with the Assessor on or before July 1 of the year the exemption is first claimed. As with the Homestead Tax Credit, the exemption remains in effect until the property owner is no longer eligible. This exemption is worth the taxes calculated on $2,778 for WWI veterans and $1,852 for all others after that time. (Refer to Code of Iowa Chapter 427)

Family Farm Tax Credit
This is a tax credit on agricultural tracts of land 10 acres or more that are farmed by the owner or immediate family members (this incased brothers/sisters, sons/daughters, grandchildren , uncles/aunts, nephews/ nieces.) To obtain the credit, the owner must file an application for credit with the assessor by November 1. If the claim for credit is approved, no further filing shall be required provided the ownership and the designated person actively engaged in farming the property remain the same during successive years. A new application for credit shall be required only if the property is sold or the designated person changes. The owner shall provide written notice to the assessor if the designated person changes. Failure to do so shall result in the owner's being liable for the amount of the credit plus a penalty equal to 5 percent of the amount of the credit granted.

Address of
Assessors office:
Jackson County Courthouse
201 West Platt Street
Maquoketa, IA 52060

Hours Office is open:
8:30 A.M. - 4:30 P.M.

Phone Number:
(563) 652-4935

FAX Number:
(563) 652-7195

Larry "Buck" Koos

Employees in
Assessors Office:

Chief Deputy
Jess Tracy

Office Manager
Janelle Bartels

Data Specialist
Jeanie Manning

Deputy - Field Appraiser
Shawn Kelly

Assessor Forms:
Downloadable forms
used in the Assessors office

Assessor Links:

Parcel Data Website

Iowa Department of Revenue

Property Assessment Appeal Board

Statewide link to Assessor’s websites


Boats at Sabula

Riverview Park in Bellevue

Farming History

Limestone Kilns at Maquoketa