For the first year of filing, a Certification of Disability for Homestead Exemption, Form 458B (available from the county assessor). Forms for Individuals.You must file the application (Form 458) with the county assessor's office where the original home resides between February 2 to June 30. Homestead exemption applications must be filed annually between February 2 and June 30. Application forms are typically available beginning February 2. Disability for Homestead Exemption, Form 458B (available from the county assessor), is required. Please call 402-444-7060, option 4 to schedule an appointment. Blank Homestead Forms. Any person who wishes to apply for a homestead exemption must complete the Nebraska Schedule I —. Income Statement and attach it to the Nebraska Homestead.