Forms for Individuals. Homestead exemption applications must be filed annually between February 2 and June 30.Application forms are typically available beginning February 2. You must file the application (Form 458) with the county assessor's office where the original home resides between February 2 to June 30. Form 458, Nebraska Homestead Exemption Application -- This form is currently unavailable. The 2024 form will be available February 2, 2024. As of June 7, 2017, we have not received your Homestead Exemption. Application for 2017. Form Name, Form Description. Current Non-Profit Entities Filing IRS Tax Form 990 with the Attorney General.