For the first year of filing, a Certification of Disability for Homestead Exemption, Form 458B (available from the county assessor). Forms for Individuals.Homestead exemption applications must be filed annually between February 2 and June 30. Application forms are typically available beginning February 2. Form 458, Nebraska Homestead Exemption Application -- This form is currently unavailable. The 2024 form will be available February 2, 2024. You must file the application (Form 458) with the county assessor's office where the original home resides between February 2 to June 30. Please call 402-444-7060, option 4 to schedule an appointment. Blank Homestead Forms.