Homestead exemption applications must be filed annually between February 2 and June 30. Application forms are typically available beginning February 2.Check List – Fill out the Homestead Declaration Form completely, sign it and have it notarized. 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. Taxpayers should use these forms and guides to apply for local tax abatements and exemptions and file property returns. The 2023 Nebraska Homestead Exemption Application is now available. The form must be filed with the Sarpy County Assessor's Office between Feb.