Nebraska Homestead Exemption. Nebraska Homestead Helpline: (888) 475 - 5101.Nebraska Homestead Exemption Application, Form 458. Homestead exemption applications must be filed annually between February 2 and June 30. Application forms are typically available beginning February 2. 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. You can get information about your property tax benefits, including: Application status, Current benefit amounts, Proposed benefit for the upcoming tax year. Exemption applications must be filed with your local assessor's office. See our Municipal Profiles for your local assessor's mailing address. This can provide asset protection from creditors for at least some of house's value.