Nebraska Homestead Exemption. Nebraska Homestead Helpline: (888) 475 - 5101.Nebraska Homestead Exemption Application, Form 458. The 2023 Nebraska Homestead Exemption Application is now available. The form must be filed with the Sarpy County Assessor's Office between Feb. The 2024 Nebraska Homestead Exemption Application is due July 1, 2024. How to Apply for Homestead Exemptions Homestead applications must be filed with the county assessor after February 1, and on or before June 30 of each year. This can provide asset protection from creditors for at least some of house's value. Homestead exemption applications must be filed annually between February 2 and June 30. Application forms are typically available beginning February 2.