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. Nebraska Homestead Exemption applications must be filed with local county assessors between Feb. The Nebraska Homestead Exemption Application, Form 458 must be filed with their county assessor on or before June 30, 2024.