Nebraska Homestead Exemption. Nebraska Homestead Exemption Application, Form 458.Deadline to apply for homestead exemption; deadline to file protest of valuation of tangible personal property or real property. How to Apply for Homestead Exemptions Homestead applications must be filed with the county assessor after February 1, and on or before June 30 of each year. Enter your search criteria in the fields on the right. Homestead exemption applications must be filed annually between February 2 and June 30. Application forms are typically available beginning February 2. LB302 would revise terminology in the Nebraska Political Accountability and Disclosure Act. The new Property Tax Assistance Act instead would provide relief in the form of a homestead exemption. Nebraska is a landlocked state in the Midwestern region of the United States.