For the first year of filing, a Certification of Disability for Homestead Exemption, Form 458B (available from the county assessor). Homestead exemption applications must be filed annually between February 2 and June 30.Application forms are typically available beginning February 2. To claim the exemption, the homeowner must make a one-time filing with the county assessor where the property is located. The 2023 Nebraska Homestead Exemption Application is now available. The form must be filed with the Sarpy County Assessor's Office between Feb. You may reach their office at 402-444-6617. If you need an application, or have questions, you may contact our office at: 402-444-7060, option 4. Applicants must also submit a resume and cover letter. We want to help you successfully make your application so feel free to contact us.