Forms for Individuals. For the first year of filing, a Certification of Disability for Homestead Exemption, Form 458B (available from the county assessor).How do I get help filling out the Form 458 Schedule 1 income statement? Our office will help applicants fill out the forms. Form 458, Nebraska Homestead Exemption Application -- This form is currently unavailable. The 2024 form will be available February 2, 2024. Each year applicants must complete and file Form PTAX-340 with the Chief County Assessment Officer. Application Submission. To apply for the Nebraska homestead exemption, the applicant needs to fill out and submit Form 458.