General Requirements for a Nebraska Homestead Exemption: In addition to being eligible for a homestead exemption under one of the homestead. Homestead exemption applications must be filed annually between February 2 and June 30.Application forms are typically available beginning February 2. 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. If the exemption was previously granted and you no longer qualify for the exemption, the law requires that you notify the Assessor's Office as soon as possible.