2026 NEBRASKA PERSONAL PROPERTY ASSESSMENT FILING DEADLINE IS MAY 1, 2026. All depreciable property is taxable. please submit your current itemized depreciation worksheet to the Assessor’s Office by mail, fax, or email prior to May 1, 2026. If you have an extension on your taxes, you will still need to report a list of your purchases by May 1. The penalty for filing after May 1 is 10% of the tax due. Filing on or after July 1 is 25% of the tax due. There are no exceptions given by the State of Nebraska. Please contact the Knox County Assessor’s Office at 402-288-5601, Fax 402-288-5602, or send Email to: assessor@knoxcountyne.gov.
PLEASE NOTE: This is not a payment request. You will still need to visit the Knox County Treasurer’s Office.
County Assessor
Duties and Qualifications
The County Assessor is an elected official who has the general supervision over and the direction of the assessment of all property in his or her county. The duties are prescribed by Nebraska Statutes, Rules and Regulations (Chapter 77), which have the effect of law. The following is a partial list of those duties:
- Administer the assessment statutes of Nebraska law.
- Establish and maintain fair and equitable value on all real and personal property within the county.
- Attend all meetings of the County Board of Equalization.
- Review all applications for religious, charitable and educational tax exemptions.
- Maintain cadastral records (i.e., parcel maps) on all property in the county.
- Prepare abstract of value and certification of taxes levied for State Property Tax Administrator.
- Prepare annual tax roll for the County Treasurer.
- The County Assessor must hold and maintain a valid certificate.
- Attend mandatory workshops.
- Obtain a minimum of 30 hours of continued education bi-yearly.
General Information Available from this office:
- Tax district information on a property in Knox County
- Ownership of a property in Knox County
- Valuation information on a property in Knox County
- Valuation of improvements on a property in Knox County
- Age of a structure in Knox County
- Size and dimensions of a parcel in Knox County
- Eligibility information on Homestead Exemptions
- How to file a property protest in Knox County
How Values Change
- Fluctuations in the market
- Outside influences on the property
- Addition or removal of improvements
- Remodel or rehabilitation
Property Tax Exemptions
- Charitable facilities
- Educational facilities
- Religious facilities
- Certain seniors or persons with disabilities
Office Hours
8:30 a.m. – 4:30 p.m.
Monday – Friday
Open through the lunch hour
Closed Weekends and Holidays
Mailing Address
PO Box 87
Center, NE 68724